2026 Idaho Hourly Wage Estimate
$40 an Hour After Taxes in Idaho (2026)
Based on 40 hours per week × 52 weeks = 2,080 hours/year. Annual equivalent: $83,200.
| Federal Income Tax | $9,474 |
| State Income Tax | $3,614 |
| Social Security | $5,158 |
| Medicare | $1,206 |
| Effective tax rate | 23.4% |
Calculation assumptions
- Standard withholding per IRS Publication 15-T (2026)
- Social Security wage base: $184,500 (SSA 2026)
- No pre-tax deductions, no post-tax deductions
- Filing status: Single, one job
- Standard W-4 withholding (no additional withholding elections)
- Actual paycheck may differ based on employer setup, benefits, or W-4 elections
How Your ID Paycheck Works
Idaho paychecks start with federal income tax withholding under IRS Publication 15-T, using Form W-4 inputs and the wage-bracket or percentage method. FICA includes Social Security at 6.2% on wages up to the 2026 wage base of $184,500 and Medicare at 1.45% on all wages; the 0.9% Additional Medicare Tax must be withheld once wages exceed $200,000 in a calendar year. Idaho's individual income tax rate is 5.3% on Idaho taxable income, effective January 1, 2025 (reduced from the prior 5.69%). For single filers, the 5.3% rate applies above the first band; the Idaho withholding schedule uses 0% on the initial band then 5.3% at $4,812 for singles. Idaho does not have a separate statewide employee SDI or paid family leave payroll deduction. Estimates assume standard 2026 withholding, single filing status, and no pre-tax deductions; actual paycheck may differ.
2026 Tax Rate Quick Reference
| Tax | 2026 Rate | Wage Cap | Source |
|---|---|---|---|
| Federal Income Tax | 10%–37% (percentage-method withholding) | No wage cap | IRS Pub. 15-T |
| Social Security | 6.2% employee withholding | $184,500 | SSA 2026 |
| Medicare | 1.45% employee withholding | No wage cap | IRS Pub. 15 |
| Additional Medicare Surtax | 0.9% on wages over $200,000 | No wage cap | IRS Topic 560 |
| Idaho State Income Tax | 5.3% (0% on initial band, then 5.3% above threshold) | No wage cap | Idaho State Tax Commission |
Sources Used for This Estimate
Other hourly rates for Idaho
- $15 an hour after taxes
- $20 an hour after taxes
- $25 an hour after taxes
- $30 an hour after taxes
- $40 an hour after taxes
- $50 an hour after taxes