WASHINGTON — Seven months after President Trump signed the One Big Beautiful Bill Act into law on July 4, 2025, the largest fiscal package in a generation is beginning to flow through the American economy. The early returns show a genuine growth boost, but the nation’s balance sheet is deteriorating faster than the economy is expanding.
The Congressional Budget Office projects the law will add 0.9 percentage points to real GDP in 2026, its peak year of impact. At the same time, CBO estimates the law adds $4.1 trillion to the national debt over the next decade on a conventional scoring basis. If temporary provisions are eventually made permanent, that figure rises to $5.5 trillion, according to the Committee for a Responsible Federal Budget, a nonpartisan organization that describes itself as committed to educating the public about issues with significant fiscal policy impact.
The central tension for fiscal conservatives is straightforward: the tax relief is real, the growth is measurable, and the debt is growing faster than either.
Third-quarter 2025 GDP came in at 4.4 percent annualized growth, according to the Bureau of Economic Analysis. That figure reflected increases in consumer spending, exports, government spending, and investment. Imports, which are a subtraction in the calculation of GDP, decreased.
Most individual tax provisions do not take full effect until 2026, meaning the strongest fiscal impulse lies ahead. CBO projects an average GDP increase of 0.5 percent over the 2025 to 2034 budget window, with effects peaking in 2026 and diminishing afterward as demand-side factors subside.
The Tax Foundation, a policy research organization that describes itself as the world’s leading independent tax policy nonprofit, projects a GDP trajectory of 0.4 percent in 2025, 0.8 percent in 2026, peaking at 1.2 percent in 2028, and stabilizing at a long-run increase of 0.7 percent.
Not all analysts share that optimism beyond the near term. The Yale Budget Lab, an academic research center at Yale University, projects that by 2054, GDP will be nearly 3 percent smaller than it would have been without the bill. The mechanism: rising debt crowds out private investment, pushes interest rates higher, and reduces the capital stock available for productivity growth. Yale projects the 10-year Treasury yield will be 1.2 percentage points higher by 2054 as a consequence.
RBC Economics warns of a “barbell” effect, noting that high-income households who receive the largest tax cuts are more likely to save or pay down debt than to spend, muting the consumer-spending boost that drives GDP growth.
About 85 percent of American households will receive a tax cut in 2026, according to the Tax Policy Center, the Urban-Brookings joint venture. The average cut is $2,900 per household.
The distribution, however, is heavily skewed. Households earning under $35,000 per year see an average cut of about $160, less than 1 percent of income. Middle-income households receive roughly $1,600 to $1,850, accounting for 13 percent of total benefits. Households in the 95th to 99th income percentile, those earning $460,000 to $1.1 million, see average cuts of $21,000, a 4.3 percent boost to after-tax income.
Nearly 60 percent of all tax benefits flow to the top quintile of earners, those making over $217,000.
The law makes permanent the seven individual tax brackets from the 2017 Tax Cuts and Jobs Act, ranging from 10 percent to 37 percent. It also delivers on several campaign trail promises: a tip income deduction of up to $25,000 per year, an overtime pay deduction of up to $12,500, and an additional $6,000 standard deduction for seniors. Each provision phases out for higher earners.
The SALT deduction cap rose from $10,000 to $40,000 for tax years 2025 through 2029. The Bipartisan Policy Center, a nonprofit organization that describes itself as combining the best ideas from both parties to promote health, security, and opportunity, notes the higher cap carries a significant revenue cost. The Tax Foundation found that only the top 20 percent of taxpayers meaningfully benefit, with the bottom 80 percent seeing no material gain from the SALT change.
This is where the numbers demand honest accounting.
On a conventional (static) basis, the law reduces federal tax revenue by $5.2 trillion over 10 years and increases spending by more than $500 billion for defense, border enforcement, and farm subsidies. It offsets those costs with $2.5 trillion in spending cuts and an estimated $1.5 to $3 trillion in tariff revenue, depending on whose projections are used.
Dynamic scoring, which accounts for economic growth generated by the tax cuts, narrows the revenue loss. The Tax Foundation estimates growth pays for 16 percent of the tax cuts, reducing the revenue loss from $5.2 trillion to $4.3 trillion. CBO’s dynamic estimate shows $85 billion in macroeconomic feedback over the budget window.
But the Penn Wharton Budget Model, an academic research initiative at the University of Pennsylvania’s Wharton School, reaches the opposite conclusion. PWBM finds that dynamic scoring actually increases the cost by $130 to $410 billion because government borrowing crowds out private investment. That disagreement between models is significant: it reflects fundamentally different assumptions about how much additional federal debt constrains private-sector growth.
The American Action Forum, which describes itself as a 21st century center-right policy institute providing actionable research and analysis to solve America’s most pressing policy challenges, projects the FY2034 deficit will reach $3.0 trillion, or 7.1 percent of GDP. Total debt held by the public would reach $53.7 trillion as written, rising to $54.5 trillion if temporary provisions are extended.
As Federal Reserve Chair Jerome Powell has stated, as cited by the Bruegel think tank: “The level of the debt is sustainable, but the path is not.”
The law’s $2.5 trillion in offsets come with real-world consequences that are beginning to materialize.
Medicaid changes account for $911 billion in savings over 10 years, according to KFF, an independent health policy research organization. Work requirements alone save $326 billion but subject 18.5 million people to new obligations each year. CBO estimates 7.5 million people will lose Medicaid coverage by 2034, with the total uninsured population rising by 10 million. The uninsured rate is projected to climb by at least 3 percentage points in 20 states and the District of Columbia.
SNAP funding faces a $186 billion reduction over 10 years, a 20 percent cut that the Brookings Institution, a nonprofit public policy organization, calls the largest reduction in the program’s history. Work requirement ages rise to 64 from 54, and states must cover 75 percent of administrative costs beginning in FY2027, up from 50 percent.
Student loan reforms save nearly $300 billion by eliminating Grad PLUS loans and imposing a $257,500 lifetime borrowing cap. Clean energy credit phase-outs from the Inflation Reduction Act generate $540 billion in savings.
The law includes provisions that advance several longstanding conservative goals.
The Education Freedom Tax Credit, the first federal school choice tax credit in American history, offers a dollar-for-dollar credit of up to $1,700 per year for contributions to qualified Scholarship Granting Organizations. The credit takes effect January 1, 2027, and 23 states have already opted in as of February 2026, with mostly Republican governors leading the way.
Supporters argue the law represents a philosophical shift in federal revenue policy: tariff revenue replaces a portion of income taxation with consumption taxation on imports, keeping more money in workers’ paychecks while taxing foreign goods. The White House Council of Economic Advisers has projected GDP gains of up to 3.5 percent and wage increases of $11,600 per worker, though CBO and independent analysts have published considerably more modest estimates.
The Medicaid work requirements reflect a conservative view that able-bodied adults should contribute to their own support as a condition of receiving public benefits. The SNAP reforms extend the same principle.
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