Anita Norine

Idaho Income Tax Brackets 2025. The idaho tax calculator is for the 2025 tax year which means you can use it for estimating your 2026 tax return in idaho, the calculator allows you to calculate income tax and payroll taxes. Istc informs taxpayers about their obligations so everyone can pay their fair share of taxes, & enforces idaho’s laws to ensure the fairness of the tax system.

Nonresidents of idaho must file if their total gross income from idaho sources is more than $2,500. Use this tool to compare the state income taxes in washington and idaho, or any other pair of states.