Higher tax rates, smaller child tax credit and other changes await as Trump tax cuts end

At the stroke of midnight Dec. 31, 2025, nearly every American will experience a tsunami of tax changes, tax professionals warn.

Major provisions in the Tax Cuts and Jobs Act of 2017 (TCJA) expire then unless Congress extends them. If the TCJA provisions sunset, most everyone will be affected one way or another, they said. Tax brackets, income tax rates, child tax credit, state and local tax deductions, mortgage interest deductions and much more will literally change overnight.

The potential changes sound far away, but tax experts say people need to be aware and consider steps now to ensure they don’t face a host of tax surprises.

“It’s going to be the Super Bowl of tax law changes in less than 18 months,” said Mark Steber, chief tax information officer at tax preparer Jackson Hewitt. Changes in deductions and credits will affect people differently, but Steber said everyone’s “tax rates will be higher. That’s inarguable.”

Why are tax rates going up in 2026?

TCJA, which was initiated by President Donald Trump, lowered tax rates across the board and shifted the thresholds for several income tax brackets. Some people saw a bigger reduction than others, but pretty much everyone gained at least a little, tax experts said.

For example, a married couple whose total income minus deductions is $250,000 would have had a 33% tax rate in 2017, but only 24% in 2024. An individual making $39,000 in taxable income in 2017 would have had a top tax rate of 25% but just 12% in 2024. For those in the top tax bracket, the rate dropped to 37% from 39.6%.

If the provision isn’t renewed, tax rates revert to their 2017, pre-TCJA rates.

To pay less tax, Americans might consider taking advantage of the lower rates now by accelerating income into 2024 and 2025 if they can. For example, retirees may want to withdraw slightly more than their required minimum distribution in these years, said Nayan Lapsiwala, wealth management director at Aspiriant.

Others may consider a Roth conversion to save money by paying the lower tax rates now and no tax when they withdraw later from Roth accounts, he said.

Additionally, “you might reconsider the timing of deductions if you anticipate your tax rate will be higher,” said Evan Morgan, principal for tax advisory services at professional services firm Kaufman Rossin. “Defer deductibles like charitable contributions, retirement contributions” to lower your income starting in 2026.

Get used to itemizing again

The standard deduction, which reduces a person’s taxable income, basically doubled under Trump’s tax cuts, allowing many more to use it rather than itemize.