Idaho charges 5.3% flat state income tax. Use the employer cost calculator pre-loaded with Idaho rates.
Open Employer Cost Calculator →Employers in Idaho must withhold and remit the flat 5.3% state income tax, plus handle their share of FICA, FUTA, and Idaho's state unemployment insurance. The total cost to employ someone at a $75,000 salary in Idaho is typically 10-15% above the gross salary, covering the employer's payroll tax share, SUI, workers' comp, and benefits. This calculator breaks down the full employer cost with Idaho's specific tax rates.
Idaho levies a flat 5.3% state income tax on all taxable income regardless of how much you earn. This makes tax planning straightforward: for every additional dollar you earn, 5.3 cents goes to Idaho. Idaho does not impose local income taxes, so the 5.3% flat rate is the only state-level income tax you owe.
The table below shows what you actually keep at five salary levels in Idaho, accounting for federal tax, FICA, and Idaho's flat 5.3% state tax.
See how Idaho compares to other West states. Each link takes you to the employer cost calculator landing page for that state.
For a comprehensive breakdown of Idaho’s tax structure, salary comparisons, cost-of-living analysis, and more, visit the full Idaho take-home pay page.