No — not for most single adults. $40,000 is below the $44,244 pre-tax income that MIT's Living Wage Calculator says one adult with no children needs to cover basic costs in Missouri. After taxes it leaves about $2,784 a month, which works only with low rent, roommates or a second income.
$40,000 salary in Missouri after taxes
Missouri takes $912 in state income tax (2.3% of gross), on top of $2,620 of federal income tax and $3,060 for Social Security and Medicare. At $40k, Missouri ranks #22 of 50 states for take-home pay. State rule used: 0%–4.7%; federal $16,100 standard deduction; part of federal income tax is deductible (35% → 0% as income rises, max $5,000). Not included: Kansas City and St. Louis levy a 1% earnings tax.
| $40k in MO | Year | Month | 2 weeks |
|---|---|---|---|
| Gross salary | $40,000 | $3,333 | $1,538 |
| Federal income tax | −$2,620 | −$218 | −$101 |
| Social Security + Medicare | −$3,060 | −$255 | −$118 |
| Missouri income tax | −$912 | −$76 | −$35 |
| Take-home pay | $33,408 | $2,784 | $1,285 |
Single filer, 2026 standard deduction ($16,100), wages only, no 401(k) or benefits. Federal marginal rate: 12%. Effective total tax rate: 16.5%.
$40k a year is how much a month in Missouri? Compared with what people earn
$40,000 works out to $3,333 a month before tax and $2,784 after. To judge whether that's "good", compare it with the people around you. The U.S. Census Bureau's American Community Survey puts median earnings for a Missouri worker at $43,094 (all workers with earnings, 2024 ACS 1-year) and median household income at $75,485 (2025 ACS 1-year, released October 2026). Your salary is 7% below the typical individual and 47% below the typical household, which often has two earners.
Median earnings include part-time workers, so full-time salaries naturally sit above it. National medians: earnings $46,949, household income $84,780.
How much rent can you afford on $40k in Missouri?
The 30% rule says housing (rent plus utilities) should stay at or below 30% of gross income. On $40,000 that is $1,000 a month. A stricter version uses take-home pay: 30% of $2,784 is $835.
The median gross rent in Missouri is $1,067 a month (rent plus utilities, ACS 2024), which is 32% of your gross pay — above the 30% rule. You can make it work, but you would want a place below the median or a roommate to keep saving.
| Rent level | Monthly | % of gross | % of take-home |
|---|---|---|---|
| 25% of gross (comfortable) | $833 | 25% | 30% |
| 30% rule | $1,000 | 30% | 36% |
| Missouri median gross rent | $1,067 | 32% | 38% |
| U.S. median gross rent | $1,487 | 45% | 53% |
A 50/30/20 monthly budget on $40,000 in Missouri
The 50/30/20 rule splits take-home pay into needs (50%), wants (30%) and savings or debt payoff (20%). On $2,784 a month that means about $1,392 for needs, $835 for wants and $557 for savings.
- Taxes (federal, FICA, state)$54916%
- Needs 50%$1,39242%
- Wants 30%$83525%
- Savings 20%$55717%
| Needs bucket (50% = $1,392) | Monthly |
|---|---|
| Rent + utilities (state median) | $1,067 |
| Groceries (MIT estimate) | $362 |
| Transportation (MIT estimate) | $762 |
| Health care (MIT estimate) | $289 |
| Shortfall — needs exceed 50% of take-home | −$1,088 |
With median rent and MIT's typical costs for food, transportation and health care, essentials come to $2,480 — $1,088 more than the 50% "needs" bucket. On $40k in Missouri you would either rent below the median, share housing, or borrow from the 30% "wants" share (a 60/20/20 split is common at this income).
Groceries, transportation and health care are MIT Living Wage Calculator annual costs for one adult in Missouri ÷ 12.
Can you live on $40k in St. Louis?
Missouri's income tax tops out below 5%, but Kansas City and St. Louis each levy a 1% earnings tax on residents and people who work in the city. Statewide rents are among the lowest of the large states.
MIT's Living Wage Calculator (data updated February 2026) puts the living wage for a single adult with no children in Missouri at $21.27 an hour, or $44,244 a year before tax. $40,000 equals $19.23 an hour for a 40-hour week — $2.04 an hour short of it.
In St. Louis specifically, $40k is likely to feel tight: the statewide living-wage figure averages expensive metro counties with cheaper rural ones, and big-city rents usually sit above the state median. St. Louis and Kansas City are both comparatively affordable big metros; remember the 1% city earnings tax if you live or work inside city limits.
Your own numbers, exactlyAdd your 401(k), health premiums, filing status and pay frequency to see your real paycheck in Missouri.
How much can you save on $40,000 in Missouri?
Setting aside the 20% share — about $557 a month or $6,682 a year — would build a six-month emergency fund ($8,352, based on the 50% needs bucket) in about 15 months. Kept up for ten years at an assumed 5% annual return, those deposits would grow to roughly $86,461 — an illustration, not a forecast. Even a small 401(k) contribution with an employer match is worth prioritizing at this income.
- Emergency fund target (6 × needs): $8,352
- 20% savings rate: $6,682/year
- 401(k) employee limit for 2026: $24,500 (IRS)
$40,000 take-home pay: Missouri vs neighbouring states
Of Missouri's neighbours, Tennessee leaves the most at $40k — about $76 a month more — but rent and wages differ across the border, so taxes alone rarely justify a move.
| State | Take-home / yr | Per month | vs MO / mo |
|---|---|---|---|
| Missouri | $33,408 | $2,784 | — |
| Iowa | $33,452 | $2,788 | +$4 |
| Illinois · $40k guide | $32,485 | $2,707 | −$77 |
| Kentucky | $33,038 | $2,753 | −$31 |
| Tennessee · $40k guide | $34,320 | $2,860 | +$76 |
| Arkansas | $33,328 | $2,777 | −$7 |
| Oklahoma | $33,066 | $2,755 | −$29 |
| Kansas | $32,888 | $2,741 | −$43 |
| Nebraska | $33,380 | $2,782 | −$2 |
Same assumptions for every state (single filer, standard deduction, no local taxes).
FAQ: $40k salary in Missouri
Is $40k a good salary in Missouri?
No — not for most single adults. $40,000 is below the $44,244 pre-tax income that MIT's Living Wage Calculator says one adult with no children needs to cover basic costs in Missouri. After taxes it leaves about $2,784 a month, which works only with low rent, roommates or a second income.
$40,000 a year is how much a month after taxes in Missouri?
About $2,784 a month, $1,285 every two weeks, or $642 a week, for a single filer taking the 2026 standard deduction with no 401(k) or other pre-tax deductions. Total taxes are $6,592 (16.5% of gross).
How much rent can I afford on $40k in Missouri?
By the 30% rule, up to about $1,000 a month including utilities. The median gross rent in Missouri is $1,067 (2024 ACS), which is above that limit, so you would aim below the median or share.
Can you live on $40k in St. Louis?
In St. Louis specifically, $40k is likely to feel tight: the statewide living-wage figure averages expensive metro counties with cheaper rural ones, and big-city rents usually sit above the state median. MIT's single-adult living wage for Missouri is $21.27/hour ($44,244 a year).
What is $40,000 a year hourly?
$19.23 an hour before tax for 2,080 work hours a year (40 hours × 52 weeks), or about $16.06 an hour after taxes in Missouri.
Related guides
- Is $50k a good salary in Missouri?Higher salary, same state
- Is $40k a good salary in Illinois?Same salary, neighbouring state
- Is $40k a good salary in Tennessee?Same salary, neighbouring state
- Is $40k a good salary in Arizona?Same salary, another state
- Is $40k a good salary in Florida?Same salary, another state
- $40,000 after taxes in every state50-state take-home table
- Missouri salary after taxes 2026Take-home for $30k–$200k
- Car loan payment guidesWhat a car costs per month
Other salaries in Missouri
$40k in other states
Sources
- Taxes: Hong Life US salary engine — IRS Rev. Proc. 2025-32 (2026 brackets, $16,100 standard deduction), SSA 2026 wage base $184,500, Tax Foundation 2026 state rates updated for 2026 legislation. Same numbers as our $40,000 after-tax page.
- Median household income: U.S. Census Bureau, “Household Income in States and Metropolitan Areas: 2025” (ACSBR-028), 2025 ACS 1-year, Oct 29, 2026.
- Median earnings (B20002) and median gross rent (B25064): U.S. Census Bureau, 2024 American Community Survey 1-year estimates.
- Living wage and typical costs: MIT Living Wage Calculator, Missouri (1 adult, 0 children), data updated Feb 15, 2026 — livingwage.mit.edu.
- Estimates for information only — not financial or tax advice.