When Are Taxes Due In 2026. Our interactive tax calculator tool helps demonstrate how the expiration of the tax cuts and jobs act could affect taxpayers in different scenarios in 2026. Check your state’s page for.

This calculator is currently still based on 2023 and 2024 tax year tax tables. Between now and the end of 2025 congress will have to vote to extend the 2017 tax cuts or they will expire (“sunset”) subjecting most to higher taxes.