What is the income tax rate in Idaho?

The top income tax rate in Idaho is 9.9%.

How is state income tax calculated in Idaho?

Idaho uses progressive tax brackets. Income in each bracket is taxed at that bracket's rate, and the total is summed.

Yes, Idaho offers a standard deduction of $14,600 for single filers and $29,200 for married couples.

Enter your details to estimate your state income tax for 2026.

Step 1: Filing Status

Step 2: Annual Income

Enter your gross annual income before deductions.

Step 3: DeductionsApply Standard Deduction ($14,600)

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