WASHINGTON, June 18, 2026 —
President Trump signed the One Big Beautiful Bill Act into law on July 4, 2025 — nearly twelve months ago. At 870 pages, it was the most sweeping piece of domestic legislation since the 2017 Tax Cuts and Jobs Act. Its supporters called it a generational economic reset. Its critics called it a transfer of wealth upward, paid for by cutting health care and food assistance for tens of millions of lower-income Americans. Both assessments contain truth. And now that most of its major provisions have been in effect for six to twelve months, there is enough real-world data to measure what it has actually delivered — and to whom.
Key Takeaways:
- The bill’s GDP boost is peaking at 0.9% in 2026, exactly as the Congressional Budget Office forecast — but the effect is front-loaded and economists project it fades significantly after 2027 as deficit borrowing crowds out private investment.
- Child tax credit rose to $2,200 per child with up to $1,700 refundable — the first increase since 2017 — but 17 million children from the lowest-income families still cannot claim the full amount because their parents earn too little.
- 7.8 million Americans could lose Medicaid coverage by 2034 under the bill’s work requirement and eligibility redetermination provisions, per CBO projections — with the first wave of work requirements taking effect December 31, 2026.
What the Bill Did for Tax Filers in 2026
The single largest immediate impact of the One Big Beautiful Bill for most American households was the permanent extension of the 2017 Tax Cuts and Jobs Act rates and brackets. Without the bill, more than 60% of taxpayers would have faced higher federal income tax bills in 2026. Those increases were prevented.
Beyond extension, the bill added new provisions that took effect this year:
| Provision | What Changed | Who Benefits |
|---|---|---|
| Standard deduction | Raised to $15,750 (single) / $31,500 (married) | Most filers who don’t itemize |
| Child tax credit | Rose to $2,200 per child; $1,700 refundable | Families with children |
| SALT deduction cap | Raised from $10,000 to $40,000 through 2029 | Higher earners in high-tax states |
| Senior bonus deduction | New $6,000 deduction for ages 65+ through 2028 | Retirees earning under $75,000 (single) |
| Car loan interest deduction | Up to $10,000 deductible on new auto loans through 2028 | Households earning under $100,000 |
| Estate tax exemption | Raised to $15 million (single) / $30 million (married) | Wealthy estates only |
| Bonus depreciation | Restored to 100% permanently | Businesses investing in equipment |
Sources: IRS, One Big Beautiful Bill Act provisions; Congressional Budget Office; Tax Foundation analysis.
The senior deduction is worth pausing on in the context of Social Security. A retiree receiving $24,000 per year in Social Security income, with no other earnings, now has access to combined deductions that effectively eliminate their federal income tax liability for 2025 through 2028. That is the provision accelerating Social Security trust fund insolvency, as previously covered — the revenue flowing back into the fund from taxable benefits is reduced when those benefits are no longer taxed.
The Medicaid Cliff Coming December 31, 2026
The most consequential provisions of the bill for low-income Americans have not yet fully taken effect. That changes at the end of this year.
Starting December 31, 2026, adults between the ages of 19 and 64 enrolled in Medicaid through the Affordable Care Act expansion must document at least 80 hours of work, training, or community service per month to retain coverage. Exemptions exist for people with dependent children age 14 and under, those with qualifying medical conditions, and certain other categories — but the exemptions are narrower than previous work requirement proposals.
The Medicaid changes also require states to conduct eligibility redeterminations every six months rather than annually, increasing the administrative burden on both states and enrollees. States also face new limits on provider taxes — a primary funding mechanism many states use to draw down additional federal Medicaid matching funds. The CBO projects these provisions combined could result in 7.8 million Americans losing Medicaid coverage by 2034.
The enrollment losses are not expected to arrive in a single wave. They will accumulate as work requirement enforcement ramps up, as six-month redeterminations catch enrollees who miss paperwork deadlines, and as states absorb higher administrative costs they cannot fully pass back to the federal government.
Student Loans: The Restructuring That Starts Now
For Americans with federal student loans, the bill’s most immediate change is already in effect. New borrowers who took out loans after mid-2026 face a dramatically simplified repayment structure — but also a more constrained one.
Starting this month, new federal student loan borrowers have only two repayment options: a standard plan with fixed monthly payments, or the new Repayment Assistance Plan. Economic hardship deferment and unemployment deferment — the two mechanisms millions of borrowers relied on during job loss or financial crisis — are eliminated for new loans.
Graduate loan limits are now capped at $100,000 lifetime for master’s degrees and $200,000 for professional programs such as law and medical school — meaningful reductions for students in high-cost programs at expensive institutions. Parent PLUS loans are capped at $20,000 per year per child, with a $65,000 lifetime limit — a significant constraint for parents helping to fund undergraduate education at schools where annual costs exceed $70,000.
The Deficit Number Nobody Is Talking About Loudly Enough
The GDP boost the bill delivers in 2026 is real. The CBO confirmed a 0.9% peak increase in GDP this year from the demand stimulus of higher after-tax household income and business investment expensing. That number will appear in Republican talking points throughout the 2026 midterm campaign.
The number that will not appear as frequently: the CBO also projects that interest payments on the national debt will increase by $441 billion over the next decade due to the bill’s deficit financing — exceeding the entire dynamic revenue effect of the economic growth it generates. The Tax Foundation confirmed this: the growth boost is front-loaded and fades after 2027 as deficit borrowing crowds out the private investment that would otherwise sustain it.
By 2034, the economic impact of the bill is projected to be negative relative to a baseline where the TCJA was allowed to expire and the deficit remained smaller. That is the trade: real growth now, borrowed against future investment capacity. Whether Congress extends the bill’s temporary provisions before they begin expiring after 2028 — the senior deduction, the car loan interest deduction, the SALT cap increase — will determine whether that trade compounds or reverses.
What Comes Into Effect in the Second Half of 2026
Several provisions are hitting their activation dates in the months ahead:
New Opportunity Zones will be designated on July 1, 2026, taking effect January 1, 2027 — opening new tax-advantaged investment options for investors in rural and underserved communities. The EV home charging credit expires for residential installations after June 30, 2026. The energy-efficient new home credit expires for homes acquired after June 30, 2026. Workforce Pell grants — the expansion of Pell eligibility to short-term workforce training programs — are scheduled for implementation on July 1, 2026.
The midterm elections in November 2026 will arrive with most of the bill’s headline tax benefits in full effect and most of its Medicaid and student loan restrictions either just activated or on the visible horizon. The political architecture of the bill is deliberate: the benefits land before the elections, the costs arrive after.
