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Idaho 路 2026 tax year State-specific estimate

Idaho paycheck calculator

Idaho uses a flat 5.8% income tax rate, applied to federal AGI with a standard deduction matching federal amounts.

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Paycheck Breakdown

Pay Period Gross Pay Deductions Take-Home Pay

Idaho estimate

Estimated take-home

$0
0% Net Salary

Your estimate changes with filing status, Idaho rules, and the deductions you enter.

Take-Home: $0
Federal Tax: $0
ID State Tax: $0
FICA Taxes: $0
State Payroll: $0
Pre-Tax Deductions: $0
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Quick answer Single filer estimate

How much is $75,000 after tax in Idaho?

Using the tax rules represented by this calculator, a single filer earning $75,000 in Idaho takes home about $58,176 per year, or $4,848 per month, before voluntary benefit deductions. Adjust the calculator for filing status and pre-tax benefits.

Idaho State Income Tax Guide (2026)

Idaho uses a flat 5.8% income tax rate, applied to federal AGI with a standard deduction matching federal amounts.

1. Idaho Flat Tax Rate

Idaho applies a single flat income tax rate of 5.8% to taxable income. Unlike progressive states, the same rate applies whether you are an entry-level worker or a high earner, which makes the calculation straightforward.

2. Deductions and Conformance

For 2026, the Idaho standard deduction is $16,100 for single filers and $32,200 for married couples filing jointly. Pre-tax 401(k) contributions, HSA contributions, and employer health premiums reduce your Idaho taxable income.

Compare With Other Flat-Tax States

Idaho is one of several states using a flat income tax rate. Compare your take-home pay across flat-tax states: Illinois (4.95%), Pennsylvania (3.07%), Georgia (4.99%), North Carolina (3.99%), Arizona (2.5%), Colorado (4.4%), Michigan (4.25%), Indiana (3.05%), Iowa (3.8%), Kentucky (3.5%), Utah (4.55%), Mississippi (4.7%).

Sources and methodology

This annual tax-liability estimate uses confirmed 2026 federal rules and Idaho state parameters from an earlier/current agency schedule that has not been independently confirmed as 2026. It is not an employer withholding calculation. See the full calculation methodology and limitations.

Data reviewed 2026-07-29. State rules without a confirmed rule year should be treated as provisional and checked with the linked agency.

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Related state paycheck calculators

Compare a curated set of neighboring, same-tax-structure, and popular state alternatives:

IllinoisFlat 4.95% Income Tax Rate PennsylvaniaFlat 3.07% Income Tax Rate GeorgiaFlat 4.99% Income Tax Rate North CarolinaFlat 3.99% Income Tax Rate ArizonaFlat 2.5% Income Tax Rate ColoradoFlat 4.4% Income Tax Rate

Frequently Asked Questions

What is the Idaho income tax rate for 2026?
Idaho applies a flat 5.8% income tax rate to all taxable income after the standard deduction.
Does Idaho have a standard deduction?
Yes. Idaho follows the federal standard deduction: $16,100 for single filers and $32,200 for married couples filing jointly.
Are 401(k) and HSA contributions deductible in Idaho?
Yes. Idaho starts from federal AGI, so pre-tax 401(k), HSA, and health insurance premiums all reduce your Idaho taxable income.