WASHINGTON — As annual federal budget deficits approach an alarming $2urillion threshold, lawmakers in Washington are increasingly looking toward the federal tax code to generate revenue and stabilize the national debt. Amid this fiscal pressure, the Tax Foundation has released its flagship resource, Options for Reforming America’s Tax Code 3.0: A Policymaker’s Guide to Tax Reform Trade-offs.
The comprehensive publication models the economic, distributional, and revenue impacts of 86 distinct modifications to the U.S. tax code. Significantly, the guide highlights 52 specific reform options that would dynamically reduce federal budget deficits over a 10-year projection window spanning from 2027 through 2036.
However, the report emphasizes a foundational economic reality: not all tax increases are created equal. While two distinct tax adjustments might yield identical revenue on a conventional, static scoring basis, their downstream economic consequences can diverge wildly. Some policy choices compound the tax code’s complexity and inefficiency, whereas others promote neutrality, broaden the tax base, and minimize damage to the broader economy.
To help policymakers navigate these complex legislative decisions, the Tax Foundation’s new guide evaluates key trade-offs across five major revenue-raising avenues, contrasting targeted base-broadening measures against more economically damaging rate hikes.
Main Facts: The Anatomy of Deficit Reduction and Economic Trade-offs
The debate over federal revenue generation centers on a core dilemma: how to raise funds to address the mounting national debt without stifling economic growth, job creation, and capital investment.
The Deficit Reality
With structural deficits hovering near $2 trillion annually, Congress faces severe fiscal constraints. Traditional approaches—such as across-the-board marginal tax rate increases or blunt deductions caps—often generate immediate revenue on paper while quietly damaging the long-term health of the gross domestic product (GDP).
The Power of Tax Neutrality
The Tax Foundation’s general equilibrium modeling underscores that broadening the tax base is systematically superior to raising marginal rates. A broad tax base eliminates specialized carve-outs, subsidies, and exemptions, thereby treating all forms of economic activity more equally. This reduces administrative compliance costs, enhances transparency, and fosters a more neutral market where investment and labor decisions are driven by economic fundamentals rather than tax avoidance strategies.
Chronology: The Evolution of U.S. Tax Policy and Structural Deficits
To understand how the American tax code arrived at its current crossroads, it is instructive to examine the historical milestones that shaped modern federal revenues:
- 1913: Following the ratification of the 16th Amendment, Congress established a permanent individual income tax. Simultaneously, the income tax exclusion for municipal bond interest was introduced—a policy designed to assist local borrowing that persists over a century later.
- 1956: The Federal-Aid Highway Act established the Highway Trust Fund (HTF), creating a dedicated revenue stream for interstate infrastructure primarily financed through federal fuel excise taxes.
- 1993: The federal gasoline tax rate was last adjusted, remaining frozen at 18.4 cents per gallon for decades despite persistent inflation, rising construction costs, and shifting vehicle fuel technologies.
- 2017: The passage of the Tax Cuts and Jobs Act (TCJA) restructured individual and corporate taxation, introducing significant caps, such as the $10,000 limitation on state and local tax (SALT) deductions.
- 2025: The enactment of the One Big Beautiful Bill Act established a fresh cap on itemized deductions, limiting their value to 35 percent for top-bracket earners beginning in 2026.
- 2026: As structural deficits accelerate toward historical highs, the Tax Foundation publishes Options for Reforming America’s Tax Code 3.0, providing modern dynamic models for 86 tax code adjustments to guide upcoming congressional debates.
Supporting Data: Five Core Revenue Options and Their Trade-offs
To illustrate the stark contrasts in modern tax policy, the Tax Foundation’s guide outlines five specific revenue-raising options, pairing each with a traditional, more economically destructive alternative.
1. Eliminating the Income Tax Exclusion for Employer Fringe Benefits (Option 32)
- The Policy: Under current law, many employer-provided benefits—such as on-site gyms, employer-paid student loans, employee discounts, and certain insurance contributions—are excluded from federal income taxes. This creates a non-neutral tax code that favors fringe compensation over standard wages. Eliminating this exclusion includes the value of these benefits in taxable income.
- Revenue Impact: On a dynamic basis, this option would decrease the primary deficit by $396.8 billion from 2027 through 2036.
- The Trade-off: Compare this to raising the top marginal individual income tax rate to 50 percent. While both raise revenue, a 50 percent top rate causes a much larger drop in GDP and significantly discourages work, whereas base broadening establishes a transparent, neutral system.
2. Repealing the Low-Income Housing Tax Credit and New Markets Tax Credit (Option 76)
- The Policy: The Low-Income Housing Tax Credit (LIHTC) and New Markets Tax Credit (NMTC) incentivize community development and housing construction. However, nonpartisan experts have criticized them for high administrative costs per unit and relative inefficiency. Repealing them broadens the business tax base.
- Revenue Impact: Dynamically reduces the primary deficit by $202.7 billion (2027–2036).
- The Trade-off: Contrast this with capping the business state and local tax (SALT) deduction. While both broaden the business tax base, capping business SALT results in a much larger decrease in GDP and severe job losses. Targeting narrow tax credits is far more efficient.
3. Eliminating the Income Tax Exclusion for Municipal Bond Interest (Option 29)
- The Policy: Interest earned on municipal (muni) bonds is traditionally exempt from federal income tax. While popular among state and local governments, it distorts savings markets by allowing municipalities to offer lower interest rates than private corporations while yielding identical returns to investors.
- Revenue Impact: Dynamically decreases the primary deficit by $155.2 billion (2027–2036).
- The Trade-off: Consider this alongside eliminating the individual SALT deduction. Both subsidize state and local spending indirectly, but eliminating SALT causes greater economic harm by spiking marginal tax rates on labor, pass-through business income, and housing investment.
4. Tightening the Limitation on Itemized Deductions (Option 24)
- The Policy: Following the 2025 tax changes capping itemized deductions at 35 percent for top earners, this option tightens the cap further to 28 percent. This broadens the tax base and encourages high-income taxpayers to utilize the simpler standard deduction.
- Revenue Impact: Dynamically reduces the primary deficit by $139.0 billion (2027–2036).
- The Trade-off: Compared to taxing capital gains and dividends at ordinary income rates, tightening itemized deductions is vastly superior. Taxing capital gains at ordinary rates severely penalizes investment and damages long-term economic growth.
5. Introducing a Vehicle Miles Traveled Tax (Option 79)
- The Policy: The Highway Trust Fund faces chronic shortfalls because the federal gas tax has been stagnant since 1993, exacerbated by the rapid adoption of electric and hybrid vehicles that utilize roads without paying fuel taxes. This option repeals federal gas and diesel taxes and institutes a Vehicle Miles Traveled (VMT) tax adjusted by vehicle weight (e.g., ~0.9 cents per mile for passenger cars; ~10.6 cents per mile for heavy freight trucks).
- Revenue Impact: Dynamically decreases the primary deficit by $133.7 billion (2027–2036).
- The Trade-off: While increasing the federal gas tax from 18.4 cents to 28 cents per gallon raises more revenue over a narrow 10-year window, it causes greater job losses and becomes increasingly obsolete as electric vehicle adoption climbs. A VMT tax offers long-term fiscal solvency for infrastructure.
Official Responses and Stakeholder Perspectives
As fiscal hawks and congressional budget committees analyze the findings in Options for Reforming America’s Tax Code 3.0, reactions across the policy spectrum highlight the growing urgency of deficit reform.
- Fiscal Conservatives: Budget watchdogs have welcomed the emphasis on dynamic modeling, arguing that lawmakers must prioritize pro-growth base-broadening over punitive tax hikes. Organizations focused on national debt reduction point out that closing specialized loopholes is essential to preventing runaway debt accumulation over the coming decades.
- Industry and Special Interest Groups: Predictably, targeted industries have pushed back against specific recommendations. Representatives for municipal finance networks defended the tax-exempt status of municipal bonds, arguing that eliminating the exclusion would raise borrowing costs for local public works projects, schools, and water systems. Similarly, housing advocates have defended the LIHTC, emphasizing its role in supporting affordable housing developments amid a national housing shortage.
- Tax Foundation Clarification: Organization leadership was quick to emphasize that while the guide provides rigorous economic modeling and policy options, the inclusion of these 86 measures does not constitute an explicit endorsement or opposition by the Tax Foundation. Instead, the publication is intended as an objective analytical toolkit for lawmakers preparing for upcoming legislative battles.
Implications: The Road Ahead for Federal Tax Reform
The release of the Tax Foundation’s guide arrives at a pivotal juncture. As the expiration dates of key provisions from past tax legislation loom and national debt metrics reach unprecedented heights, Congress will be forced to renegotiate the structure of the American tax code.
The core implication of the data is clear: lawmakers cannot simply rely on blunt instruments or historical revenue-raising habits without courting severe economic contraction. Future tax reform must be guided by foundational principles:
- Simplicity: Reducing compliance burdens and administrative friction.
- Neutrality: Eliminating special-interest carve-outs so that all forms of labor, capital, and consumption compete on a level playing field.
- Transparency: Ensuring that taxpayers understand the true costs and trade-offs of fiscal policies.
- Stability: Constructing revenue mechanisms—such as sustainable infrastructure funding models—that can withstand technological shifts and long-term economic cycles.
Ultimately, how Congress chooses to balance these competing priorities will define the trajectory of the American economy for generations to come.
