Renames the federal “standard deduction” to the “guaranteed deduction” starting with tax years that begin after December 31, 2025. All references in the tax code will use the new name.

Adds a temporary “bonus guaranteed deduction” for 2026 and 2027 to further reduce taxable income for most filers who do not itemize. The bonus is $4,000 for married filing jointly/surviving spouse, $3,000 for head of household, and $2,000 for other filers. The 2027 bonus may be adjusted for inflation and phases out for higher‑income taxpayers.