How much Idaho tax should be withheld from each paycheck?

Estimate Idaho state withholding per paycheck for 2025 or 2026 by entering wages, pay frequency, and filing status. The calculator annualizes your income, applies Idaho rates, and returns an estimated per-paycheck withholding amount.

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Estimates use Idaho’s flat tax rate and may differ from payroll withholding formulas.

How this calculation works

  • Annualizes wages based on pay frequency.
  • Applies Idaho withholding rules using filing status inputs.
  • Converts the annual estimate back to a per-paycheck amount.

Common mistakes and caveats

  • Employer withholding settings can vary by payroll system.
  • Bonus or supplemental wages may be withheld differently.
  • Local taxes are not included.

FAQ

Does this match the exact Idaho withholding tables?

It is an estimate based on Idaho guidance and may differ slightly from payroll systems.

Last updated & sources

Last updated January 27, 2026.

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TaxGuide Pro provides free state and federal tax calculators for individuals, freelancers, and small businesses.

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