## CHAPTER 3 INTANGIBLE YET REAL: SPILLOVERS FROM CORPORATE INCOME TAXATION

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### Global context and motivation
- Globalization, digitalization, and a secular shift toward investment in intangible assets have increased international capital mobility.
- Multinational corporations (MNCs) account for more than 20 percent of global GDP and approximately 15 percent of global corporate profits.
- Intangible assets identified include copyrights, databases, patents, processes, software, and trademarks; these are major determinants of firm value and drivers of corporate profit.
- Greater scope for tax base shifting has emerged as MNCs exploit corporate income tax rate differentials and incentives, disconnecting profits from underlying economic activity.
- Governments have frequently reduced statutory corporate income tax rates and increased the generosity of tax provisions, narrowing tax bases and reducing the tax burden on capital relative to labor.

### Key questions addressed
- How has the global corporate income tax landscape evolved?
- How large are spillovers from tax competition and base shifting, and how do these spillovers differ across countries and over time?
- How have recent tax reforms—including measures aimed at curbing tax avoidance—impacted firms’ profit shifting and real investment decisions?
- How do spillovers vary under alternative scenarios of tax competition and different ways of financing corporate income tax cuts in the short and long term?

### Three main findings
- First: form of tax competition is changing
  - A 1 percentage point reduction in the average peer country’s statutory corporate income tax rate is associated with a 0.4 percentage point cut in the home country’s rate.
  - Strategic interactions are stronger among economies at similar stages of development.
  - Strategic interactions have weakened since the major anti-avoidance reforms of the 2010s, particularly regarding statutory tax rates, while tax incentives and other targeted provisions have become increasingly important.
- Second: multiple channels generate cross-border spillovers
  - A 1 percentage point increase in a country’s corporate income tax rate relative to rates elsewhere is associated with a cumulative decline in FDI inflows of about 0.5 percent of GDP over three years.
  - Since 2017, the location of new investment has become considerably more sensitive to tax differentials.
  - Anti-avoidance efforts have weakened the link between tax differentials and profit shifting while increasing the sensitivity of real investment decisions to tax rates.
- Third: important trade-offs in corporate income tax competition
  - Lower corporate income tax rates can stimulate investment, innovation, and productive capacity but may also reduce revenue.
  - Domestic and spillover effects depend on how revenue losses are financed and on the strength of anti-avoidance frameworks.
  - Debt-financed tax cuts can raise global interest rates and crowd out investment elsewhere.
  - Tax cuts that reduce public investment can harm long-term output; stronger anti-avoidance measures can ease some trade-offs, especially for emerging market and developing economies.

### Primer on spillover channels
- Domestic effects
  - Tax competition and base shifting can weaken revenue collection, distort capital allocation between private and public sectors, and enable reclassification of labor income as corporate income.
- Global effects
  - Capital and profits can move toward low-tax jurisdictions rather than locations with the highest real returns.
- Government instruments and evolving competition
  - Corporate tax systems include statutory rates, profit-based incentives (tax holidays, patent boxes), and cost-based incentives (investment tax credits, accelerated depreciation, enhanced R&D allowances).
  - Evidence suggests a shift from rate cutting toward profit-based incentives and increasingly targeted investment incentives aimed at attracting FDI and portfolio flows.
  - Effective rates are lower than statutory rates in many countries, and the divergence has increased over time in some cases.

### Recent reforms and anti-avoidance measures
- International reform milestones
  - The 15-point Action Plan from the OECD/G20 BEPS initiative began major international reforms in 2013; guidance followed in 2015 on anti-avoidance measures targeting profit-shifting channels.
  - Reforms include controlled foreign corporation rules, strengthened transfer pricing regulations, and interest limitation rules; adoption has broadened but remains uneven across countries.
- United States policy changes
  - The United States’ Tax Cuts and Jobs Act (TCJA) in 2017 lowered the statutory rate, moved toward a more territorial system, and introduced minimum-tax and anti-base-erosion provisions including GILTI, BEAT, and FDII.
- Global minimum tax effects
  - Introducing minimum taxation of foreign income contributed to a compression of the global distribution of effective tax rates.

### Firm strategies and the role of intangibles
- Common MNC tax strategies
  - Transferring ownership of intangible assets to low-tax subsidiaries and paying royalties (location of intangibles).
  - Adjusting intrafirm prices when valuing transactions involving hard-to-value intangibles (transfer pricing).
  - Using intra-group borrowing arrangements to shift interest deductions (debt shifting).
- Intangibles characteristics
  - Intangible assets are highly mobile and nonrival, enabling easier decoupling of profit location from where underlying activity occurs.
- Effect of anti-avoidance tightening
  - Curtailing profit-shifting opportunities makes tangible investment decisions more sensitive to tax differentials, aligning profit booking and economic activity more closely.

### Empirical and methodological notes
- Decompositions of backward-looking effective tax rates for MNCs separate tax-policy-driven changes from profit-shifting responses; patterns are evident in the U.S. after the TCJA.
- Evidence suggests profit shifting has weakened since 2017, reducing downward pressure on MNCs’ effective tax rates.
- General equilibrium considerations
  - Lower corporate tax rates can raise after-tax returns, stimulate private investment, and expand productive capacity.
  - Net effects depend on fiscal financing: short-term positive private demand spillovers may be offset by higher global interest rates from debt-financed cuts.
  - Long-term outcomes hinge on whether global capital accumulation and knowledge diffusion gains outweigh investment relocation and tax-base erosion effects.
  - Short-term dynamics differ from long-term spatial equilibrium outcomes because firms adjust physical capital only gradually.

### Empirical evidence on output and investment spillovers
- Aggregate empirical findings
  - Corporate income tax (CIT) cuts in major economies are associated with lower output and investment abroad: Output in the rest of the world (ROW) falls by as much as 0.5 percent two years after a corporate income tax cut.
  - Personal income tax (PIT) cuts tend to generate positive external effects: Output elsewhere rises by about 0.5 percent within a year and continues to increase thereafter (response not statistically significant).
- Methodology
  - Estimates use narrative-based tax shocks for Germany, the United Kingdom, and the United States, orthogonalizing PIT and CIT shock series following Mertens and Ravn (2014).
  - Results are largely driven by corporate income tax changes in the United States; Germany and the United Kingdom show qualitatively similar but not statistically significant effects.

### Model-based illustration of short-term transmission channels
- Model used
  - IMF’s Global Integrated Monetary and Fiscal model to illustrate trade, capital reallocation, and financial channels.
- Key modeled scenario
  - A 3 percentage point permanent cut in the corporate income tax rate in a major advanced economy.
- Domestic effects
  - The tax cut raises the after-tax return to capital; firms expand capital and investment, lifting domestic demand.
  - Capacity cannot expand one-to-one due to adjustment costs; demand rises faster than capacity, putting upward pressure on the real interest rate.
- Financing assumptions and comparative dynamics
  - Debt-financed tax cuts amplify spillovers: higher public borrowing raises global real interest rates and crowds out investment abroad.
  - Budget-neutral (deficit-neutral) tax cuts generate more muted spillovers: lower public borrowing, less binding capacity constraints, and smaller interest-rate hikes.
- Model-simulated magnitudes and dynamics (responses to the 3 percentage point CIT cut)
  - Domestic and global interest rates rise more under debt-financed than deficit-neutral financing.
  - Capital goods imports into the major advanced economy increase following the tax cut.
  - Real GDP rises domestically but falls in the ROW under debt-financed scenarios.

### International transmission: reallocation, global rates, and trade
- Simultaneous channels
  - Investment reallocation: higher after-tax returns attract investment and capital goods to the tax-cutting jurisdiction, reallocating capital away from others.
  - Trade channel: stronger import demand from the tax-cutting economy partially offsets negative effects abroad.
  - Global financing channel: increased borrowing by the tax-cutting country raises world real interest rates, crowding out investment globally.
- Net short-term effect
  - Investment abroad is crowded out and output falls elsewhere when tax cuts are debt financed.
  - Spillovers are much smaller when tax cuts are deficit neutral.

### Strategic tax competition and base-shifting spillovers
- Strategic complementarity in statutory rates
  - A 1 percentage point reduction in the average peer country’s statutory corporate income tax rate is associated with a 0.4 percentage point cut in the implementing jurisdiction’s statutory tax rate.
  - Responses are strongest among countries comparable in size and level of development or viewed as close substitutes by international investors.
- Intensity over time
  - The intensity of strategic tax competition has eased following reform efforts to address tax avoidance during 2013–17, especially for statutory rates.
- Base-shifting effects on FDI and greenfield projects
  - A 1 percentage point increase in a country’s corporate income tax rate relative to others is associated with a cumulative decline in FDI inflows of about 0.5 percent of GDP over three years.
  - At the project (extensive) margin:
    - A 1 percentage point increase in the effective average tax rate relative to neighbors is associated with 1.5 fewer new greenfield projects in the short term.
    - Over the medium term, the elasticity can be as high as 4 for firms in low-intangibles-intensive sectors.
  - Adjustment is more prominent for greenfield investments than for acquisitions (brownfield).
- Model simulation of tax competition
  - Assuming ROW lowers effective CIT by 1.2 percentage points in response to a 3 percentage point cut by a major economy:
    - When all cuts are debt financed, real interest rates rise in all countries.
    - The initiating economy’s GDP increase is smaller under reciprocated cuts than under a unilateral cut.
    - Tax competition reduces investment and output benefits for the original tax-cutting economy and raises interest rates for all economies.

### Responses of multinational corporations and profit shifting
- Reported profits and tax differentials
  - A 1 percentage point increase in a country’s statutory rate relative to other locations where an MNC operates is associated with a decline in profits booked in that country of roughly 1 percent to 1½ percent.
- Heterogeneity by intangibles intensity
  - Sensitivity of reported profits to tax differentials is 2.5 times higher for high-intangibles-intensive firms before 2017.
  - Over time, sensitivity has fallen only for low-intangibles-intensive firms; no evidence of change for high-intangibles-intensive firms.
  - The rise of intangible assets may continue to facilitate profit shifting, partly offsetting declines in tax competition.
- Effect of transfer pricing documentation requirements (TPDR)
  - The responsiveness of reported profits to tax differentials is lower for MNCs headquartered in countries that have adopted TPDR, suggesting documentation and administrative capacity raise the cost of transfer pricing strategies.

### Changes in sensitivity of reported income, by intangibles intensiveness
- Sample and definitions
  - Sample corresponds to foreign affiliates of multinational corporations over the 2010–20 period, with headquarters in over 40 countries and subsidiaries in over 100 countries.
  - Profits measure is based on earnings before interest and taxes.
  - An affiliate is “high-intangibles intensive” when the ratio of intangible fixed assets to total fixed assets of its global ultimate owner exceeds 50 percent on average.
  - TPDR = transfer pricing documentation requirements.
- Main empirical patterns
  - Reported income sensitivity to tax differentials increased after 2017.
  - Before 2017, firms with high intangibles intensiveness were less sensitive to tax differentials than low-intangibles-intensive firms.
  - After 2017, both high- and low-intangibles-intensive firms became more tax-sensitive, and the gap largely disappeared.
  - Introduction of TPDR is associated with an increase in sensitivity of reported income to tax differentials for both groups.

### Profits shifted to low-tax jurisdictions (simulation and implications)
- Macro simulation findings
  - In a simulation where a major advanced economy reduces its corporate income tax rate by 3 percentage points and “Other AEs” reduce theirs by 1.2 percentage points, advanced-economy revenues fall while emerging-market revenues increase by about 0.3 percentage point because their corporate income tax rates remain unchanged and their tax bases are better protected (IMF staff calculations).
  - Profits shifted to low-tax jurisdictions fall by an estimated 10 percent for emerging market economies in the simulation where emerging-market anti-avoidance is strengthened.
  - Net output effects for emerging market economies are modest but positive—about 0.04 percent—driven largely by knowledge transfers within MNC groups and small but positive effects of stronger enforcement, which help preserve fiscal capacity for public investment.
  - Debt-financed tax cuts in large economies can produce negative short-term spillovers through crowding out of investment, particularly if tax competition induces similar tax cuts elsewhere.
  - In the long term, tax cuts can generate positive spillovers through cross-border knowledge transfers, but domestic outcomes may weaken if public investment is curtailed or if other economies respond with tax rate cuts of their own.
  - Stronger anti-avoidance measures can reduce profit shifting, preserve revenues lost through profit shifting, and hence support output, particularly in emerging market and developing economies.

### Tax incentives: principles and shifting incentives
- Six guiding principles from the Platform for Collaboration on Tax (2025)
  - Justification: An incentive may be justified only if net social benefits can reasonably be expected, publicly articulated, and produce broad social gains that exceed costs.
  - Design: Ensure effective targeting of the source of social benefits while minimizing distortions and fiscal costs; cost-based incentives are generally more effective and efficient at increasing investment than profit-based incentives (IMF and others 2015).
  - Legislation: Embed provisions into law in a transparent and robust manner, minimizing discretion and with necessary governance safeguards.
  - Implementation: Ensure (voluntary) compliance and effective monitoring of outcomes.
  - Evaluation: Regularly assess whether benefits offset the cost; publish tax expenditures periodically.
  - International considerations: Recognize interactions with international initiatives and spillovers through strategic tax competition.
- Effects of international rule changes
  - Global minimum tax (GMT) triggers top-up taxes if an MNC group’s effective tax rate in a jurisdiction falls below 15 percent, reducing the effectiveness of some incentives.
  - The GMT makes rate cuts and tax holidays less effective, so countries may increasingly compete using cost-based incentives (for example, qualifying refundable tax credits).
  - The “substance-based income exclusion” linked to payroll and tangible assets reduces the top-up tax base and strengthens the link between incentives and real activity.
  - The January 2026 Side-by-Side Package introduced the Substance-Based Tax Incentive Safe Harbour, which treats substance-based incentives more favorably and further shifts tax competition toward real economic activity.

### Historical and institutional developments (selected statistics)
- OECD/G20 Inclusive Framework on BEPS
  - Formed in June 2016 and, as of 2026, consists of 148 members.
- Progress 2025–2026 on BEPS minimum standards
  - Action 5: The OECD Forum on Harmful Tax Practices has reviewed almost 350 preferential regimes.
  - Action 6: More than 95 percent of tax treaties entered into by IF members are expected to comply with the minimum standard.
  - Action 13: 120 IF members have adopted country-by-country (CbC) legislation.
  - Action 14: More than 500 tax treaties have been modified to include Mutual Agreement Procedure provisions.
- Progress on BEPS nonminimum standards
  - Action 3: 57 jurisdictions have adopted controlled foreign corporation (CFC) rules.
  - Action 4: 89 IF members have adopted interest limitation rules (ILRs).
  - Actions 8–10: 117 IF members have incorporated the arm’s length principle into law; 102 use the OECD’s Transfer Pricing Guidelines; and 38 (47) have been working to adopt or have adopted the approach for hard-to-value intangibles (low-value-adding intragroup services).
- Policy changes and unilateral measures
  - The UK repealed its diverted profits tax in 2026 and replaced it with a corporation tax charge on unassessed transfer pricing profits.
  - The United States adopted H.R. 1 in 2025 (the One Big Beautiful Bill Act), which modified elements of the TCJA, increased effective tax rates on net CFC tested income (formerly GILTI) and foreign-derived deduction eligible income (formerly FDII), and expanded the availability of foreign tax credits.
  - More than 50 countries have implemented one or more GMT rules.
  - In 2026, a side-by-side agreement was reached by 147 IF members, exempting US MNCs from most GMT rules and treating substance-based tax incentives more favorably.

### Evidence on the geography of innovation income
- Patent transfers and tax differentials
  - Bilateral patent transfers are estimated to be 8.5 percent higher when the destination offers a lower tax rate; the estimate rises to 14.8 percent for intrafirm transfers.
  - For 2007–12, intrafirm patent transfers are larger when the destination offers a greater tax advantage.
  - After 2013, the relationship between bilateral patent transfers and tax differentials is no longer statistically significant.
- Implications
  - Tax rates primarily affect where innovation income is reported rather than where innovation is created.
  - Reducing profit shifting can raise the effective tax burden on mobile intangible income and thus may discourage R&D investments.
  - Income booked in low-tax jurisdictions is not necessarily reinvested where it is reported nor in further innovation.
  - Stronger base protection can help realign MNCs’ profit and innovation activity location choices; net effects on innovation depend on whether shifted profits finance productive R&D or simply reduce tax liabilities.
- Groupings used in analysis
  - PLTJs (productive LTJs): Belgium, Ireland, Luxembourg, Singapore, Switzerland, and The Netherlands.
  - ULTJs (unproductive LTJs): offshore financial centers such as Bermuda and the Cayman Islands.
  - Non-LTJs: the remaining economies in the sample.
- Time periods and data notes
  - Intrafirm patent transfers—relationship with tax differentials—analyzed for 2007–12.
  - Change in statistical significance of tax-differential effects observed after 2013.

*Source: Chapter 3, "Intangible Yet Real: Spillovers from Corporate Income Taxation," World Economic Outlook, International Monetary Fund, October 2026.*

### Introduction

### CHAPTER 3 INTANGIBLE YET REAL: SPILLOVERS FROM CORPORATE INCOME TAXATION

### Global context and motivation
- Globalization and digitalization, together with a secular shift toward investment in intangible assets, have driven a steady rise in the international mobility of capital.
- Multinational corporations (MNCs) now account for more than 20 percent of global GDP and approximately 15 percent of global corporate profits.
- Intangible assets identified include copyrights, databases, patents, processes, software, and trademarks; these assets are major determinants of firm value and drivers of corporate profit.
- Greater scope for tax base shifting has emerged as MNCs exploit corporate income tax rate differentials and incentives, creating a disconnect between profits and underlying economic activity.
- Governments have frequently reduced statutory corporate income tax rates and increased the generosity of tax provisions, narrowing the corporate income tax base and reducing the tax burden on capital relative to labor.

### Key questions the chapter addresses
- How has the global corporate income tax landscape evolved?
- How large are the spillovers from tax competition and base shifting, and how do these spillovers differ across countries and over time?
- How have recent tax reforms—including measures aimed at curbing tax avoidance—impacted firms’ profit shifting and real investment decisions?
- How do spillovers vary under alternative scenarios of tax competition and different ways of financing corporate income tax cuts in the short and long term?

### Three main findings (as presented in the chapter)
- First: tax competition remains important, but its form appears to be changing.
  - A 1 percentage point reduction in the average peer country’s statutory corporate income tax rate is associated with a 0.4 percentage point cut in the home country’s rate.
  - Strategic interactions are stronger among economies at similar stages of development.
  - Strategic interactions have weakened since the major anti-avoidance reforms of the 2010s, particularly regarding statutory tax rates, while tax incentives and other targeted provisions have become increasingly important.
- Second: corporate income tax policies generate cross-border spillovers through multiple channels.
  - A 1 percentage point increase in a country’s corporate income tax rate relative to rates elsewhere is associated with a cumulative decline in FDI inflows of about 0.5 percent of GDP over three years.
  - Since 2017, the location of new investment has become considerably more sensitive to tax differentials.
  - Anti-avoidance efforts have weakened the link between tax differentials and profit shifting while increasing the sensitivity of real investment decisions to tax rates, potentially realigning profits and real economic activity.
- Third: important trade-offs characterize corporate income tax competition.
  - Lower corporate income tax rates can stimulate investment, innovation, and productive capacity but may also reduce revenue.
  - Domestic and spillover effects depend on how revenue losses are financed and on the strength of anti-avoidance frameworks.
  - Debt-financed tax cuts can generate negative short-term spillovers by raising global interest rates and crowding out investment elsewhere.
  - Tax cuts that reduce public investment can harm long-term output, whereas stronger anti-avoidance measures can ease some trade-offs, especially for emerging market and developing economies.

### Primer on spillover channels
- Domestic effects:
  - Tax competition and base shifting can weaken revenue collection, distort capital allocation between private and public sectors, and enable reclassification of labor income as corporate income.
- Global effects:
  - Capital and profits can move toward low-tax jurisdictions rather than locations with the highest real returns.
- Government instruments and evolving competition:
  - Corporate tax systems include statutory rates, profit-based incentives (tax holidays, patent boxes), and cost-based incentives (investment tax credits, accelerated depreciation, enhanced R&D allowances).
  - Evidence suggests a shift from rate cutting toward profit-based incentives and increasingly targeted investment incentives aimed at attracting FDI and portfolio flows.
  - Effective rates are lower than statutory rates in many countries, and the divergence has increased over time in some cases.

### Recent reforms and anti-avoidance measures
- Since 2013, significant international reforms began with the 15-point Action Plan from the OECD/G20 BEPS initiative, followed by guidance in 2015 on anti-avoidance measures targeting specific profit-shifting channels.
- Reforms include controlled foreign corporation rules, strengthened transfer pricing regulations, and interest limitation rules; adoption has broadened but remains uneven across countries.
- The United States’ Tax Cuts and Jobs Act (TCJA) in 2017 lowered the statutory rate, moved toward a more territorial system, and introduced minimum-tax and anti-base-erosion provisions including GILTI, BEAT, and FDII.
- Introducing minimum taxation of foreign income contributed to a compression of the global distribution of effective tax rates.

### Firm strategies and the role of intangibles
- MNC strategies to exploit tax differentials include:
  - Transferring ownership of intangible assets to low-tax subsidiaries and paying royalties (location of intangibles).
  - Adjusting intrafirm prices when valuing transactions involving hard-to-value intangibles (transfer pricing).
  - Using intra-group borrowing arrangements to shift interest deductions (debt shifting).
- Intangible assets are highly mobile and nonrival, enabling easier decoupling of profit location from where underlying activity occurs.
- Anti-avoidance tightening has altered responses: curtailed profit-shifting opportunities make tangible investment decisions more sensitive to tax differentials, aligning profit booking and economic activity more closely.

### Empirical and methodological notes highlighted
- Decompositions of backward-looking effective tax rates for MNCs separate tax-policy-driven changes from profit-shifting responses; patterns are evident in the U.S. after the TCJA.
- Evidence suggests profit shifting has weakened since 2017, reducing downward pressure on MNCs’ effective tax rates.
- General equilibrium considerations:
  - Lower corporate tax rates can raise after-tax returns, stimulate private investment, and expand productive capacity.
  - The net effect depends on fiscal financing: short-term positive private demand spillovers may be offset by higher global interest rates from debt-financed cuts.
  - Long-term outcomes hinge on whether global capital accumulation and knowledge diffusion gains outweigh investment relocation and tax-base erosion effects.
  - Short-term dynamics differ from long-term spatial equilibrium outcomes because firms adjust physical capital only gradually.

### Chapter structure and analytical approach
- The chapter:
  - Provides a primer on key spillover channels and documents evolution of corporate tax policies and MNC adjustments.
  - Analyzes short-term spillovers from domestic tax policy changes using empirical and model-based approaches.
  - Evaluates strategic interactions among governments and how tax differentials affect cross-border investment.
  - Focuses on MNC decisions about profit booking, investment location (extensive margin), and investment intensity (intensive margin), and examines effects of anti-avoidance measures and the rise of intangibles.
  - Uses model-based simulations (including the IMF Global Integrated Monetary and Fiscal model and a spatial model) to explore long-term spillovers and trade-offs, with attention to emerging market and developing economies.

*Source: Chapter 3, "Intangible Yet Real: Spillovers from Corporate Income Taxation," World Economic Outlook, International Monetary Fund, October 2026.*

### CHAPTER 3 INTANGIBLE YET REAL: SPILLOVERS FROM CORPORATE INCOME TAXATION

### CHAPTER 3 INTANGIBLE YET REAL: SPILLOVERS FROM CORPORATE INCOME TAXATION

### Empirical evidence on output and investment spillovers
- Corporate income tax (CIT) cuts in major economies are associated with lower output and investment abroad:
  - Output in the rest of the world (ROW) falls by as much as 0.5 percent two years after a corporate income tax cut.
- Personal income tax (PIT) cuts tend to generate positive external effects:
  - Output elsewhere rises by about 0.5 percent within a year and continues to increase thereafter (response not statistically significant).
- Methodology and scope:
  - Estimates use narrative-based tax shocks for Germany, the United Kingdom, and the United States, orthogonalizing PIT and CIT shock series following Mertens and Ravn (2014).
  - Results are largely driven by corporate income tax changes in the United States; Germany and the United Kingdom show qualitatively similar but not statistically significant effects.

### Mechanisms and short-term transmission channels (model-based illustration)
- Model used: IMF’s Global Integrated Monetary and Fiscal model to illustrate trade, capital reallocation, and financial channels.
- Key modeled scenario:
  - A 3 percentage point permanent cut in the corporate income tax rate in a major advanced economy.
- Domestic effects:
  - The tax cut raises the after-tax return to capital; firms expand capital and investment, lifting domestic demand.
  - Capacity cannot expand one-to-one due to adjustment costs; demand rises faster than capacity, putting upward pressure on the real interest rate.
- Financing assumptions matter:
  - Debt-financed tax cuts amplify spillovers: higher public borrowing raises global real interest rates and crowds out investment abroad.
  - Budget-neutral (deficit-neutral) tax cuts generate more muted spillovers: lower public borrowing, less binding capacity constraints, and smaller interest-rate hikes.
- Model-simulated magnitudes and dynamics (responses to the 3 percentage point CIT cut):
  - Domestic and global interest rates rise more under debt-financed than deficit-neutral financing.
  - Capital goods imports into the major advanced economy increase following the tax cut.
  - Real GDP rises domestically but falls in the ROW under debt-financed scenarios.

### International transmission: reallocation, global rates, and trade
- Multiple channels operate simultaneously:
  - Investment reallocation: higher after-tax returns attract investment and capital goods to the tax-cutting jurisdiction, reallocating capital away from others.
  - Trade channel: stronger import demand from the tax-cutting economy partially offsets negative effects abroad.
  - Global financing channel: increased borrowing by the tax-cutting country raises world real interest rates, crowding out investment globally.
- Net short-term effect:
  - Investment abroad is crowded out and output falls elsewhere when tax cuts are debt financed.
  - Spillovers are much smaller when tax cuts are deficit neutral.

### Strategic tax competition and base-shifting spillovers
- Strategic complementarity in statutory rates:
  - A 1 percentage point reduction in the average peer country’s statutory corporate income tax rate is associated with a 0.4 percentage point cut in the implementing jurisdiction’s statutory tax rate.
  - Responses are strongest among countries comparable in size and level of development or viewed as close substitutes by international investors.
- Intensity over time:
  - The intensity of strategic tax competition has eased following reform efforts to address tax avoidance during 2013–17, especially for statutory rates.
- Base-shifting effects on FDI:
  - A 1 percentage point increase in a country’s corporate income tax rate relative to others is associated with a cumulative decline in FDI inflows of about 0.5 percent of GDP over three years.
  - At the project (extensive) margin:
    - A 1 percentage point increase in the effective average tax rate relative to neighbors is associated with 1.5 fewer new greenfield projects in the short term.
    - Over the medium term, the elasticity can be as high as 4 for firms in low-intangibles-intensive sectors.
  - Adjustment is more prominent for greenfield investments than for acquisitions (brownfield).
- Model simulation of tax competition:
  - Assuming ROW lowers effective CIT by 1.2 percentage points in response to a 3 percentage point cut by a major economy:
    - When all cuts are debt financed, real interest rates rise in all countries.
    - The initiating economy’s GDP increase is smaller under reciprocated cuts than under a unilateral cut.
    - Tax competition reduces investment and output benefits for the original tax-cutting economy and raises interest rates for all economies.

### Responses of multinational corporations and profit shifting
- Reported profits respond to cross-country tax differentials:
  - A 1 percentage point increase in a country’s statutory rate relative to other locations where an MNC operates is associated with a decline in profits booked in that country of roughly 1 percent to 1½ percent.
- Heterogeneity by intangibles intensity:
  - Sensitivity of reported profits to tax differentials is 2.5 times higher for high-intangibles-intensive firms before 2017.
  - Over time, sensitivity has fallen only for low-intangibles-intensive firms; no evidence of change for high-intangibles-intensive firms.
  - The rise of intangible assets may continue to facilitate profit shifting, partly offsetting declines in tax competition.
- Anti-avoidance measures:
  - The responsiveness of reported profits to tax differentials is lower for MNCs headquartered in countries that have adopted transfer pricing documentation requirements, suggesting documentation and administrative capacity raise the cost of transfer pricing strategies.

*International Monetary Fund | World Economic Outlook, October 2026, Chapter 3.*

### 1. Changes in Sensitivity of Reported Income, by Intangibles Intensiveness

### 1. Changes in Sensitivity of Reported Income, by Intangibles Intensiveness

### Sample and definitions
- Sample corresponds to foreign affiliates of multinational corporations over the 2010–20 period, with headquarters in over 40 countries and subsidiaries in over 100 countries.
- Profits measure is based on earnings before interest and taxes.
- The increase in tax differential is measured relative to the asset-weighted average of corporate income tax rates within the multinational corporation group.
- An affiliate is defined as “high-intangibles intensive” when the ratio of intangible fixed assets to total fixed assets of its global ultimate owner exceeds 50 percent on average.
- TPDR = transfer pricing documentation requirements.
- Whiskers denote 90 percent confidence intervals.

### Changes in sensitivity of reported income (pre-2017 vs post-2017)
- Reported income sensitivity to tax differentials increased after 2017.
- Before 2017, firms with high intangibles intensiveness were less sensitive to tax differentials than low-intangibles-intensive firms, consistent with greater scope to shift profits after investing.
- After 2017, both high- and low-intangibles-intensive firms became more tax-sensitive, and the gap between them largely disappeared, suggesting anti-avoidance measures reduced the ex post advantage of shifting profits and made location and reporting choices more uniform across firms.

### Role of transfer pricing documentation requirements (TPDR) and regulation
- Introduction of TPDR and similar regulations is associated with changes in the sensitivity of reported income:
  - Where TPDRs are introduced, the sensitivity of reported income to tax differentials rises relative to environments with no regulation.
  - The regulation-driven increase in sensitivity is observed for both low and high intangibles intensiveness groups, with graphical results reported using 90 percent confidence intervals.

### Implications and interpretation
- The convergence in tax sensitivity across intangibles-intensive and less intangibles-intensive firms implies that anti-avoidance measures can materially reduce the profit-shifting advantage associated with high intangible asset shares.
- Greater sensitivity of reported income to tax differentials post-2017 is consistent with reduced profit-shifting opportunities, altering firms’ incentives in both reporting and real investment margins.

*Chapter 3, International Monetary Fund | October 2026*

### 2. Profits Shifted to Low-Tax Jurisdictions

### Profits Shifted to Low-Tax Jurisdictions

### Macroeconomic simulation findings
- In a simulation where a major advanced economy reduces its corporate income tax rate by 3 percentage points and “Other AEs” reduce theirs by 1.2 percentage points, advanced-economy revenues fall while emerging-market revenues increase by about 0.3 percentage point because their corporate income tax rates remain unchanged and their tax bases are better protected (IMF staff calculations).
- Profits shifted to low-tax jurisdictions fall by an estimated 10 percent for emerging market economies in the simulation where emerging-market anti-avoidance is strengthened.
- Net output effects for emerging market economies are modest but positive—about 0.04 percent—driven largely by knowledge transfers within MNC groups and small but positive effects of stronger enforcement, which help preserve fiscal capacity for public investment.
- Debt-financed tax cuts in large economies can produce negative short-term spillovers through crowding out of investment, particularly if tax competition induces similar tax cuts elsewhere.
- In the long term, tax cuts can generate positive spillovers through cross-border knowledge transfers, but domestic outcomes may weaken if public investment is curtailed or if other economies respond with tax rate cuts of their own.
- Stronger anti-avoidance measures can reduce profit shifting, preserve revenues lost through profit shifting, and hence support output, particularly in emerging market and developing economies.

### Channels and evolving trade-offs
- Anti-avoidance reforms have reduced the sensitivity of profit shifting to tax differentials while increasing the tax sensitivity of real investment decisions; as a result, profits and real economic activity are potentially becoming more closely aligned.
- The locus of tax competition is shifting from paper profits toward real investment and productive activity, raising trade-offs: lower corporate income taxation can support investment in productive capacity, but can also reduce revenues, reshape the location of economic activity elsewhere, and influence other governments’ tax policies.

### Tax incentives: principles and shifting incentives
- The Platform for Collaboration on Tax (2025) outlines six guiding principles for the use of tax incentives:
  - Justification: An incentive may be justified only if net social benefits can reasonably be expected, publicly articulated, and produce broad social gains that exceed costs.
  - Design: Ensure effective targeting of the source of social benefits while minimizing distortions and fiscal costs; cost-based incentives are generally more effective and efficient at increasing investment than profit-based incentives (IMF and others 2015).
  - Legislation: Embed provisions into law in a transparent and robust manner, minimizing discretion and with necessary governance safeguards.
  - Implementation: Ensure (voluntary) compliance and effective monitoring of outcomes.
  - Evaluation: Regularly assess whether benefits offset the cost; publish tax expenditures periodically.
  - International considerations: Recognize interactions with international initiatives and spillovers through strategic tax competition.
- International rule changes have reshaped tax competition toward incentives linked to economic substance, improving targeting and curbing profit shifting through shell or “mailbox” companies but potentially intensifying competition for real investment, employment, and production.
- The global minimum tax (GMT) triggers top-up taxes if an MNC group’s effective tax rate in a jurisdiction falls below 15 percent, reducing the effectiveness of some incentives. The GMT makes rate cuts and tax holidays less effective, so countries may increasingly compete using cost-based incentives (for example, qualifying refundable tax credits).
- The “substance-based income exclusion” linked to payroll and tangible assets reduces the top-up tax base and strengthens the link between incentives and real activity.
- The January 2026 Side-by-Side Package introduced the Substance-Based Tax Incentive Safe Harbour, which treats substance-based incentives more favorably and further shifts tax competition toward real economic activity.

### Historical and institutional developments (selected statistics and milestones)
- The OECD/G20 Inclusive Framework (IF) on BEPS was formed in June 2016 and, as of 2026, consists of 148 members. Its role is to review and monitor implementation of the 15 BEPS Actions and provide an equal footing for advanced economies and emerging market and developing economies.
- From 2025 to 2026, progress implementing the four BEPS minimum standards includes:
  - Action 5: The OECD Forum on Harmful Tax Practices has reviewed almost 350 preferential regimes.
  - Action 6: More than 95 percent of tax treaties entered into by IF members are expected to comply with the minimum standard.
  - Action 13: 120 IF members have adopted country-by-country (CbC) legislation.
  - Action 14: More than 500 tax treaties have been modified to include Mutual Agreement Procedure provisions.
- Progress on BEPS nonminimum standards includes:
  - Action 3: 57 jurisdictions have adopted controlled foreign corporation (CFC) rules.
  - Action 4: 89 IF members have adopted interest limitation rules (ILRs).
  - Actions 8–10: 117 IF members have incorporated the arm’s length principle into law; 102 use the OECD’s Transfer Pricing Guidelines; and 38 (47) have been working to adopt or have adopted the approach for hard-to-value intangibles (low-value-adding intragroup services).
- Policy changes and unilateral measures:
  - The UK repealed its diverted profits tax in 2026 and replaced it with a corporation tax charge on unassessed transfer pricing profits.
  - The United States adopted H.R. 1 in 2025 (the One Big Beautiful Bill Act), which modified elements of the TCJA, increased effective tax rates on net CFC tested income (formerly GILTI) and foreign-derived deduction eligible income (formerly FDII), and expanded the availability of foreign tax credits.
  - More than 50 countries have implemented one or more GMT rules.
  - In 2026, a side-by-side agreement was reached by 147 IF members, exempting US MNCs from most GMT rules and treating substance-based tax incentives more favorably.

*Source: International Monetary Fund, World Economic Outlook, Chapter 3, "Intangible Yet Real: Spillovers from Corporate Income Taxation."*

### 8.5 percent more patent transfers to lower-tax juris-

### Box 3.3. The Geography of Innovation Income

### Evidence on patent transfers, royalties, and tax differentials
- Bilateral patent transfers are estimated to be 8.5 percent higher when the destination offers a lower tax rate; the estimate rises to 14.8 percent for intrafirm transfers.
- For the period 2007–12, intrafirm patent transfers are larger when the destination offers a greater tax advantage; positive values on the tax-difference axis indicate the destination has a lower tax rate than the origin.
- After 2013, the relationship between bilateral patent transfers and tax differentials is no longer statistically significant.
- Possible explanations for the post-2013 attenuation:
  - Major international tax reforms aimed at limiting profit shifting.
  - A shift toward less transparent arrangements—cost-sharing arrangements, multistep ownership structures, and intellectual property–related service contracts—that are more difficult to observe in patent transaction data.
- Model-based counterfactuals indicate that if tax differentials narrow, incentives to reallocate patent ownership for tax purposes weaken, leaving the domestic royalty tax base relatively intact.

### Implications for R&D, innovation location, and profit shifting
- Tax rates primarily affect where innovation income is reported rather than where innovation is created.
- Reducing profit shifting can raise the effective tax burden on mobile intangible income and thus may discourage R&D investments.
- Income booked in low-tax jurisdictions is not necessarily reinvested where it is reported nor in further innovation.
- Stronger base protection can help realign multinational corporations’ profit and innovation activity location choices, but the net effect on innovation depends on whether MNCs use shifted profits to finance productive R&D or simply to reduce their tax liabilities.

### Definitions and groupings used in the analysis
- Economies are grouped into:
  - PLTJs (productive LTJs): Belgium, Ireland, Luxembourg, Singapore, Switzerland, and The Netherlands.
  - ULTJs (unproductive LTJs): offshore financial centers such as Bermuda and the Cayman Islands.
  - Non-LTJs: the remaining economies in the sample.
- In the royalty-income analysis, indices are normalized to 1995 = 1 for patent transfers and royalty payment shares.

### Key empirical details and periods
- Intrafirm patent transfers—relationship with tax differentials—analyzed for 2007–12.
- Change in statistical significance of tax-differential effects observed after 2013.

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_Source: https://www.imf.org/-/media/files/publications/weo/2026/october/english/ch3.pdf_