Take-home pay on a $40,000 salary in Missouri
A $40,000 salary in Missouri leaves $33,408 a year after federal income tax, Social Security, Medicare and Missouri income tax — $2,784 a month, or $1,284.93 in a two-week paycheck. Those are the figures for a single filer on the standard deduction, and every one of them below is computed from the published tables, not estimated.
Where every dollar of $40,000 goes
Single filer, 2026 rules, standard deduction, no 401(k), no health premiums, no dependents. The biggest single line at $40,000 is federal income tax at $2,620; the smallest is Medicare at $580.
| Line | Per year | Per month | Per 2 weeks | % of gross |
|---|---|---|---|---|
| Gross salary | $40,000 | $3,333 | $1,538.46 | 100.0% |
| Federal income tax | −$2,620 | −$218 | −$100.77 | 6.6% |
| Social Security (6.2%) | −$2,480 | −$207 | −$95.38 | 6.2% |
| Medicare (1.45%) | −$580 | −$48 | −$22.31 | 1.5% |
| Missouri income tax | −$912 | −$76 | −$35.07 | 2.3% |
| Total withheld | −$6,592 | −$549 | −$253.53 | 16.5% |
| Take-home pay | $33,408 | $2,784 | $1,284.93 | 83.5% |
The federal income tax on $40,000, bracket by bracket
No single rate is applied to a whole salary federally. The $16,100 standard deduction is subtracted before anything else, and on $40,000 that is 40.3% of the pay — enough that a large part of this salary never meets a bracket at all. What is left, $23,900, is then cut across two bands, and only the topmost cut is charged at 12%.
| Federal band | Rate | Income taxed here | Tax from this band |
|---|---|---|---|
| $0 – $12,400 | 10% | $12,400 | $1,240 |
| $12,400 – $50,400 | 12% | $11,500 | $1,380 |
| Total | $23,900 | $2,620 |
Federal tax on $40,000 totals $2,620, which is 6.6% of gross pay even though the top band reached is 12%. The gap between those two numbers is the whole point of a graduated system.
The Missouri income tax on $40,000, bracket by bracket
Missouri runs a separate ladder and subtracts a separate and larger amount before it starts: $16,100 of standard deduction plus $655 for federal income tax, $16,755 in all, against the federal $16,100. That leaves $23,245 of Missouri taxable income, $655 less than the federal figure. $40,000 works through eight of Missouri's bands, topping out at 4.7%.
| Missouri band | Rate | Income taxed here | Tax from this band |
|---|---|---|---|
| $0 – $1,348 | 0% | $1,348 | $0 |
| $1,348 – $2,696 | 2% | $1,348 | $27 |
| $2,696 – $4,044 | 2.5% | $1,348 | $34 |
| $4,044 – $5,392 | 3% | $1,348 | $40 |
| $5,392 – $6,740 | 3.5% | $1,348 | $47 |
| $6,740 – $8,088 | 4% | $1,348 | $54 |
| $8,088 – $9,436 | 4.5% | $1,348 | $61 |
| $9,436 and up | 4.7% | $13,809 | $649 |
| Total | $23,245 | $912 |
Missouri income tax on $40,000 totals $912, 2.3% of gross pay, against a top band rate of 4.7%.
What applies to you at $40,000, and what does not
Where $40,000 lands in Missouri's bands
Missouri taxes a single filer through eight bands. $40,000 reaches the eighth of them, so the top slice of your Missouri taxable income ($23,245 after the $16,100 Missouri takes off first and the $655 it allows for the federal income tax on this salary) is charged at 4.7%. Nothing is published above it. Of the $23,245 Missouri taxes, $13,809 — 59.4% — falls in this last band and the rest in the seven lower ones. This is the last band Missouri publishes and it has no upper edge, so the rate on further income does not move again however much more you earn. Below it, $1,348 escaped Missouri's tax entirely and $8,088 was charged at lower rates, which puts the effective rate on the whole salary — 2.3% — 2.4 percentage points under the 4.7% headline.
There is no band above this one, so where you sit inside it changes nothing.
Moving up from $40,000, and how you got here
Coming up from $30,000, a $10,000 raise added $7,579 of take-home pay — 75.8% of it survived withholding. Going on to $50,000 would add $7,579 a year, $632 a month, out of $10,000 of extra gross, or 75.8%. Nothing in either schedule creates a cliff where earning more leaves you with less: a band rate only ever applies to the income inside that band.
$40,000 beside the Missouri minimum wage
The minimum wage in Missouri is $15.00 an hour, which is $31,200 a year at forty hours a week. $40,000 is 1.3 times that. Run the floor through the same engine and it keeps $26,739 of that $31,200 — 14.3% withheld — against 16.5% at $40,000. The gap between those two shares is the graduated system doing its work: the extra $8,800 of gross is charged at higher rates than the first $31,200 ever is.
Effective Jan 1, 2026 under voter-approved Proposition A (2024). HB 567 (signed July 2025) removed the future automatic inflation adjustments Prop A had set. Does not apply to public employers.
What the top of your federal bill is actually taxed at
$40,000 puts the next dollar in the band just above the lowest one, $38,000 wide and closed off by the largest rate step in the schedule, 10 percentage points in a single move. Until a pay rise is large enough to leave it, none of your income changes how it is treated. You have $26,500 of taxable income left inside it, which is about $26,500 more salary before the next band starts taking a larger share of the extra.
Missouri lets you subtract federal income tax
Missouri lets you subtract part of the federal income tax you owe: 35% of it at $25,000 of income or less, falling in steps to 5% and to none above $125,000, capped at $5,000. At $40,000 the share is 25%, so $655 of the $2,620 federal income tax on this page comes off Missouri taxable income. The subtraction is worth $30.79 of Missouri income tax at this salary, and it is already inside the $911.88 on this page. Missouri's withholding formula leaves this deduction out, so an employer withholds a little more Missouri tax than this and the difference comes back when you file.
$40,000 before anything local
The $33,408 above is what $40,000 leaves after federal withholding, FICA and Missouri state withholding, and nothing else. Anything a city, county or school district levies on wages sits outside that figure, and whether any of it reaches your paycheck is a municipal question rather than a state one — so it is not modelled here. Missouri's own published position is below.
Only Kansas City and St. Louis City levy a 1% local earnings tax; Missouri law bars any other municipality from imposing a local income tax. Residents of those cities pay 1% on all earnings; non-residents pay 1% on income earned within city limits.
Maxing a 401(k) is not realistic at $40,000
The 2026 elective deferral limit is $24,500, which is 61.3% of a $40,000 salary. Nobody at this income is hitting it, and the advice to "max out your 401(k)" is written for a salary several rungs up this ladder. What is worth knowing is the rate: every dollar you do defer comes off at 12% federally plus 4.7% in Missouri, so even a small contribution is bought at a real discount.
What Missouri takes from a bonus at $40,000
Missouri withholds supplemental wages — a bonus, a commission, a payout — at a flat 4.7%, not at the rate the rest of your pay is charged. That is exactly the rate your salary is charged at this rung, so a bonus and a raise are withheld identically here. On $1,000 of bonus it is the difference between $47.00 and $47.00 of Missouri withholding. Withholding is not the tax: what you owe is settled on the return either way.
If you pay for childcare, $40,000 sets your credit rate
The Child and Dependent Care Credit refunds a share of what you spend on qualifying care, counting up to $3,000 of expenses for one dependent or $6,000 for two or more, and income decides what that share is. At $40,000 it is 38.0%: you are on the first slide, where the rate drops a point for every $2,000 of income above $15,000. It levels off at 35.0% once income reaches $45,000, so a raise from here costs you a little of this credit on the way. Being nonrefundable, it can only cancel tax you already owe, and the take-home numbers on this page do not include it at all.
Where Missouri ranks on $40,000
Run the same $40,000 through all fifty states and the District of Columbia and Missouri comes 18 from the top on take-home pay — 34 from the bottom — keeping $33,408. The jurisdictions immediately above it at this salary are Mississippi and Iowa; immediately below are Vermont and Idaho. North Dakota tops the table at $34,320, $912 more than Missouri on identical gross pay, and Oregon is last at $31,343. That ranking is specific to $40,000: flat-rate and graduated states change places as income rises, so Missouri's neighbours on this table are different at other salaries.
The same $40,000 on the other filing statuses
The status you file under decides how big the standard deduction is and how wide each federal band runs. On $40,000 the difference is real: $2,569 a year in favour of a joint return over a single one, and $1,467 for head of household. FICA does not move at all across the three: Social Security and Medicare are indifferent to who you are married to.
| Filing status | Federal tax | MO income tax | Take-home a year | Share withheld |
|---|---|---|---|---|
| Single / Married filing separately | $2,620 | $912 | $33,408 | 16.5% |
| Married filing jointly | $780 | $183 | $35,977 | 10.1% |
| Head of household | $1,585 | $480 | $34,875 | 12.8% |
How this figure was computed
Every number above is computed at build time by the same engine that runs the Missouri paycheck calculator, from this repository's 2026 tax data file. Nothing is hand-typed and nothing is copied from another site.
- Gross
- $40,000 a year, spread evenly: $19.23 an hour, $1,538.46 a fortnight.
- Federal
- 2026 brackets on $23,900 taxable (gross less the $16,100 standard deduction), Rev. Proc. 2025-32 → $2,620.
- FICA
- Social Security $2,480 on all of $40,000, under the $184,500 base. Medicare $580.
- Missouri
- Its own schedule on $23,245 after the $16,100 Missouri subtracts first and the $655 it allows for federal income tax, through eight bands → $912.
What this does not include
- Left out of the sums. Anything taken pre-tax (401(k), HSA, FSA, insurance premiums), any dependants or credits, itemised deductions, income that is not wages, and the half of FICA your employer pays.
- What is specifically live at $40,000. None of the following is in the take-home figure above, and all of it is real at this income: the Child and Dependent Care Credit, whose rate at this income is set by the §21 schedule described above.
- Local income taxes are not included. Missouri cities of Kansas City and St. Louis levy a separate 1% local earnings tax on wages, which is not included in this estimate.
- Missouri's standard deduction conforms to the federal standard deduction. For a head of household the figure used here also includes the extra $1,400 Missouri allows on the annual return (Section 143.161 RSMo), so it is $25,550 rather than $24,150. Not modeled here: the additional standard deduction for taxpayers age 65 or older or blind, the same $1,400 for a qualifying surviving spouse, and Missouri tax credits.
- Missouri lets you deduct part of your federal income tax on your annual return, under Section 143.171 RSMo, and this estimate applies it. It uses the federal income tax this estimate works out from your pay, so other income or credits on your real return would change it. The share depends on your Missouri adjusted gross income: 35% at $25,000 or less, 25% from $25,001 to $50,000, 15% from $50,001 to $100,000, 5% from $100,001 to $125,000, and 0% at $125,001 or more. It is capped at $5,000 per return, or $10,000 on a married filing combined return. Missouri's withholding formula leaves this deduction out, so your employer will usually withhold a little more Missouri tax than this estimate shows, and you get the difference back when you file Form MO-1040.
A computed estimate, not tax advice. Your own W-4, benefits and credits move the number.
Frequently asked questions
What is the take-home pay on a $40,000 salary in Missouri?
About $33,408 a year for a single filer taking the standard deduction, after federal income tax of $2,620, Social Security of $2,480, Medicare of $580 and Missouri income tax of $912. In total 16.5% of gross pay is withheld.
How much is $40,000 a year per month after taxes in Missouri?
$2,784 a month, $1,284.93 on a fortnightly cycle and $1,392.00 paid twice a month. Federally you are in the 12% bracket and in Missouri the 4.7% band, though neither rate applies to the whole salary.
How much more would I keep on $50,000 instead of $40,000?
$7,579 more a year, $632 a month. That is 75.8% of the $10,000 raise; the rest goes to federal tax, FICA and Missouri withholding.
Is $40,000 a good salary in Missouri?
Context, not advice: it is below Missouri's median HOUSEHOLD income of $70,702, a figure that often covers two earners, so a single earner on $40,000 is not as far off the middle as that comparison suggests. Housing cost is not modelled anywhere here.
Why might my own paycheck differ from this?
Because this page models one specific person: a single filer, standard deduction, no 401(k), no premiums, no dependants. Every one of those that is different for you moves the number, and so does what you put on your W-4. The Missouri paycheck calculator takes all of them.
Sources
- Missouri Department of Revenue: 2026 withholding tax formula
- Missouri Department of Revenue: 2026 Form MO-1040ES, tax rate chart
- Revised Statutes of Missouri 143.171: the federal income tax deduction
- Revised Statutes of Missouri 143.161: the extra $1,400 for a head of household
- Missouri: federal income tax deduction, official guidance
- IRS: 2026 inflation-adjusted tax brackets
- IRS: Rev. Proc. 2025-32 (2026 brackets, all statuses)
- Social Security Administration: Contribution and Benefit Base
- IRS: Questions and answers for the Additional Medicare Tax (thresholds by filing status)
Federal figures were last verified 2026-10-03.
Found an error? See our corrections log or contact us.