Paycheck Calculator in Twin Falls, ID
Calculate your take-home pay in Twin Falls, Idaho after federal and state taxes.
Updated May 2026Twin Falls, Idaho Paycheck Calculator
Tax snapshot: Twin Falls, ID
Twin Falls is a city of 52k residents in Idaho. Idaho applies a flat 5.80% income tax rate to all taxable income — the same rate regardless of how much you earn. After subtracting the state standard deduction of $14,600.00, every dollar above that threshold is taxed at 5.80%. Flat-rate states make paycheck planning simpler: no bracket math, no surprise marginal rates.
The median household income in Twin Falls is $60,760.00 (U.S. Census ACS 2023). At that salary, a single filer in Idaho pays approximately $2,677.28 in state income tax — an effective state rate of 4.41%. Combined with federal income tax and FICA, the total effective rate at this income level is 20.60%, yielding an estimated $1,855.47 in take-home pay per bi-weekly paycheck (single filer, 2026 rates).
The paycheck calculator above applies Idaho's 2026 tax rates alongside updated 2026 federal income tax brackets to estimate your exact Twin Falls take-home pay. Enter your annual salary, pay frequency, and filing status — then expand the pre-tax deductions section to factor in 401(k) contributions and health insurance premiums, which lower your taxable income before both state and federal taxes are applied.
2025 Idaho Income Tax Rates
Idaho uses a flat income tax rate of 5.80% on all taxable income.
Deductions & Exemptions
- Standard Deduction
- $14,600.00
Estimated Idaho State Tax by Salary
| Annual Salary | State Tax | Effective Rate |
|---|---|---|
| $40,000.00 | $1,473.20 | 3.68% |
| $60,000.00 | $2,633.20 | 4.39% |
| $80,000.00 | $3,793.20 | 4.74% |
| $100,000.00 | $4,953.20 | 4.95% |
Federal and FICA taxes not included. Based on single filer, 2025 rates.
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Paycheck Calculator FAQ — Idaho
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Disclaimer: For informational purposes only. Not tax, legal, or financial advice.