Free Idaho Tax Calculator
Calculate your 2026 Idaho take-home pay after 5.695% flat state tax, federal tax & FICA. No sign-up.
Last reviewed: January 2026 · Tax data verified against IRS Publication 15-T & state revenue departments
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How This Calculator Works
Idaho income tax rate: 5.695% flat. Flat income tax rate of 5.695% for 2026. This means your paycheck in Idaho is only reduced by federal income tax and FICA — plus state tax at 5.695% top rate.
The 2026 federal tax brackets apply the same way in Idaho as everywhere else: 10%–37% progressive rates after the $16,100 standard deduction (single) or $32,200 (married). FICA adds 6.2% Social Security (up to $184,500) + 1.45% Medicare.
Idaho has a flat 5.695% flat income tax. Idaho switched to a flat tax in 2023 and has been steadily reducing the rate each year. On a $75,000 salary (single filer), your take-home pay is approximately $58,750 per year after federal tax, FICA, and state income tax.
Idaho also has a 6% state (8.2% avg combined) sales tax and 0.75% average effective property tax rate. Idaho switched to a flat tax in 2023 and has been steadily reducing the rate each year.
Use the calculator above to see your exact take-home pay in Idaho. Enter your salary, filing status, and any pre-tax deductions to get an instant, accurate result — no sign-up required.
How It's Calculated
Formula
Step-by-Step
- 1Apply Idaho flat income tax (5.695% flat)
- 2Subtract pre-tax deductions (401(k), HSA) from gross pay
- 3Apply federal standard deduction ($16,100 single / $32,200 married)
- 4Calculate federal tax using progressive brackets (10%–37%)
- 5Calculate FICA: 6.2% Social Security (up to $184,500) + 1.45% Medicare
- 6Subtract all taxes from gross pay to get net take-home pay
Example
For detailed data sources and full methodology, see our Methodology & Data Sources page.
Key Rates & Data for 2026
Idaho Income Tax
5.695% flat
Idaho Sales Tax
6% state (8.2% avg combined)
Idaho Property Tax
0.75%
Federal Standard Deduction
$16,100 (single)
FICA Social Security
6.2% (up to $184,500)
Frequently Asked Questions
Does Idaho have a state income tax?
What is the tax rate in Idaho?
How much is $75,000 after taxes in Idaho?
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