2026 Missouri Bonus Estimate
$100,000 Bonus After Taxes in Missouri (2026)
| Bonus Amount | $100,000 |
| Federal Withholding (flat rate 22%) | $22,000 |
| State Withholding | $5,400 |
| Social Security | $6,200 |
| Medicare | $1,450 |
| Take-Home Bonus | $64,950 |
Bonus withholding uses the flat-rate supplemental wage method (22% federal). Your actual bonus withholding depends on your employer's payroll method, year-to-date earnings, and W-4 elections. Verify with your employer or a tax advisor before making financial decisions.
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 MO Paycheck Works
Missouri paychecks start with federal income tax withholding using IRS Publication 15-T, which applies the wage bracket or percentage method based on Form W-4, payroll frequency, and taxable wages. FICA is separate: Social Security is withheld at 6.2% on employee wages up to $184,500 for 2026, while Medicare is withheld at 1.45% on all covered wages. Employers must also withhold the 0.9% Additional Medicare Tax when wages paid to an employee exceed $200,000 in the calendar year. Missouri state income tax withholding uses a graduated formula with rates from 0.00% to 4.70% after the applicable standard deduction, per Missouri's 2026 withholding formula. Missouri also has local earnings taxes in two major cities: St. Louis collects a 1% earnings tax from residents and employees working in the city, and Kansas City imposes a 1% earnings tax on earned income for those who live or work there. Both city taxes are supported in this calculator's city selector for Missouri. 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 |
| Missouri State Income Tax | 0.00%–4.70% graduated withholding formula | No wage cap | MO DOR 2026 Formula |
| St. Louis Earnings Tax | 1% where applicable | No wage cap | City of St. Louis |
| Kansas City Earnings Tax | 1% where applicable | No wage cap | City of Kansas City |
Sources Used for This Estimate
Other bonus amounts for Missouri
- $1,000 bonus after taxes
- $5,000 bonus after taxes
- $10,000 bonus after taxes
- $25,000 bonus after taxes
- $50,000 bonus after taxes
- $100,000 bonus after taxes