💡 Select your city above — local tax now supported. Bonus state-tax and local-tax figures are marginal-bracket estimates, not necessarily any special supplemental rate your state or city may apply to bonus payments specifically.
Calculating a regular paycheck? Try our Missouri paycheck calculator →
How Bonuses Are Taxed in Missouri (2026)
A bonus paid on a separate check in Missouri has a flat 22% federal tax withheld (37% on cumulative supplemental wages over $1,000,000 in a year), 7.65% FICA, and Missouri state income tax at your marginal rate. Withholding is not a higher tax rate — it is just how much your employer holds back up front; your actual tax on the bonus is settled when you file, and any over-withholding comes back as refund.
| Component | Rate on the bonus |
|---|---|
| Federal income tax (supplemental, percentage method) | 22% flat · 37% above $1,000,000/yr |
| Social Security | 6.2% (up to $184,500 of total wages) |
| Medicare | 1.45% · +0.9% above $200,000 |
| Missouri state tax | Your marginal bracket rate |
Some employers instead use the aggregate method — adding the bonus to your regular paycheck and withholding as if that were every check — which can withhold more or less than the flat 22%. The calculator above uses the flat-rate (percentage) method.
Missouri Bonus Take-Home by Amount (2026)
Flat-rate (percentage) method, single filer, bonus paid separately on top of a $65,000 salary. Enter your own numbers in the calculator above — this table is a starting point.
| Bonus | Federal (22%) | FICA | Missouri tax | Take-home |
|---|---|---|---|---|
| $1,000 | $220 | $77 | $47 | $657 |
| $2,500 | $550 | $191 | $118 | $1,641 |
| $5,000 | $1,100 | $383 | $235 | $3,283 |
| $10,000 | $2,200 | $765 | $470 | $6,565 |
| $15,000 | $3,300 | $1,148 | $705 | $9,848 |
| $25,000 | $5,500 | $1,913 | $1,175 | $16,413 |
How Missouri Paycheck Tax Is Calculated (2026)
Source: Missouri Department of Revenue| Taxable income bracket | Rate |
|---|---|
| $0 – $1,348 | 0% |
| $1,348 – $2,696 | 2% |
| $2,696 – $4,044 | 2.50% |
| $4,044 – $5,392 | 3% |
| $5,392 – $6,740 | 3.50% |
| $6,740 – $8,088 | 4% |
| $8,088 – $9,436 | 4.50% |
| $9,436 – + | 4.70% |
Standard deduction (single): $15,750, subtracted from gross income before applying brackets.
Federal Tax & FICA (shared across all states)
| Filing status | Standard deduction |
|---|---|
| Single | $16,100 |
| Married Filing Jointly | $32,200 |
| Head of Household | $24,150 |
| Federal brackets (all filing statuses) | 10% / 12% / 22% / 24% / 32% / 35% / 37% |
|---|---|
| Social Security | 6.2% up to $184,500 wage base |
| Medicare | 1.45% on all wages, +0.9% above $200,000 single/HoH, $250,000 MFJ |
⚠️ Missouri's married-filing-jointly and head-of-household state brackets have not yet been independently verified against the primary source above — this calculator uses Missouri's single-filer brackets as an estimate when those statuses are selected.
Guideline version 2026-MO-v2 · Last verified 2026-08-19
Missouri Bonus Tax FAQ
What are Missouri's income tax brackets for 2026?
Missouri uses 8 marginal brackets ranging from 0% to 4.70%. Standard deduction: $15,750 for single filers.
How much is take-home pay on $65,000 in Missouri?
On a $65,000 gross salary, a single filer in Missouri takes home roughly $52,268.69/year (about $4,355.72/month) after federal tax, FICA, and state tax — before any local tax.
What deductions does Missouri apply before taxing my income?
Missouri applies a $15,750 standard deduction, before its marginal bracket schedule. See the "How Missouri Paycheck Tax Is Calculated" section above for the exact formula.
Does this estimate change if I'm married or have dependents?
This calculator uses single-filer figures only (v1 scope). Married filing jointly typically uses different federal and Missouri state brackets and a larger standard deduction — your actual take-home pay will differ. Dependents can also reduce federal withholding via the W-4. Check Missouri Department of Revenue's married-filing-jointly tables for a precise figure.
Does this calculator include Missouri local or city income tax?
Kansas City and St. Louis each levy a 1% local earnings tax on residents (and on nonresidents working there), not computed here.
Methodology & Source
Missouri state tax figures sourced from Missouri Department of Revenue (https://dor.mo.gov/), citing Mo. Rev. Stat. § 143.011. Federal brackets, standard deductions (single/MFJ/HoH), and FICA constants sourced from the IRS (Revenue Procedure 2025-32; married-filing-jointly Additional Medicare threshold of $250,000 is a separate, unindexed statutory figure). Missouri's married-filing-jointly and head-of-household figures are not yet independently verified and currently fall back to single-filer brackets — see the caveat in the formula section above.
Local tax figures sourced from Kansas City & St. Louis earnings tax administration. Both cities' 1% earnings tax rate has been stable for decades — cross-checked against two independent secondary sources 2026-07-29 (askdoss.com, countrytaxcalc.com) after both cities' own .gov earnings-tax pages returned a 403/DNS error in this environment. Simplification: this calculator treats the 'non-resident working here' option as if the full salary were city-sourced, same simplifying assumption as the Philadelphia non-resident option elsewhere on this site — in reality only city-sourced wages are taxed for non-residents.
Bonus federal withholding uses the flat supplemental-wage rate (22%, 37% above $1,000,000 cumulative supplemental wages/year), per IRS Publication 15 (Circular E), Employer's Tax Guide, 2026 edition — the alternative "aggregate method" is not modeled. Missouri publishes no separate supplemental withholding rate, so the calculator estimates the state tax on the bonus from your marginal bracket.
This is an estimate based on standard single-filer federal, FICA, and MO state calculations. Actual withholding may differ based on your W-4 elections, pre-tax deductions, and other factors.
Guideline version: 2026-MO-v2 · Effective: 2026-01-01 · Last verified: 2026-08-19