“[If Congress does not extend the tax cuts] there'll be a 68% tax increase.”

Trump's number is many times too big. The nonpartisan Urban-Brookings Tax Policy Center estimated that extending the 2017 tax cuts, the flip side of letting them expire, would cut middle-income households' taxes by about $1,000, or 1.3 percent of their after-tax incomes, and top-1-percent households' taxes by 3.2 percent: single-digit percentages, nowhere near 68%. PolitiFact rated the claim False. Taxes would have risen for most Americans if the law lapsed, which is the true core of his warning; only the size is wrong.

Trump repeated the bogus figure in a June 5, 2025 Truth Social post, in May 25 remarks to reporters and at a May 30 press conference, and the White House never offered any sourcing for it; it did not respond to PolitiFact's inquiry, and FactCheck.org reported the White House would not address the figure even anonymously.

"If the 2017 tax law is not extended, independent analyses show that taxes will increase, but by far less than what Trump said... We rate the statement False." — PolitiFact, June 10, 2025