$40,000 After Taxes in Missouri (2026)

A single filer paid $40,000 in Missouri has $23,900 of federal taxable income after the $16,100 standard deduction. The top slice of that income falls in the 12% federal bracket, which starts at $12,400 of taxable income, and federal income tax comes to $2,620, or 6.55% of the salary.

Payroll tax is federal and the same in Missouri as everywhere else: on $40,000 of wages it is $3,060, made up of $2,480 of Social Security at 6.2% of every dollar and $580 of Medicare at 1.45%.

Missouri taxable income is $23,245, after a $655 deduction for federal income tax, and its top slice reaches the 4.7% Missouri rate above $9,436, the state top rate. State income tax is $912, 2.28% of the salary. Missouri uses one bracket schedule for every filing status; only the standard deduction varies.

Altogether $6,592 of a $40,000 Missouri salary goes to tax, an effective total rate of 16.48%, which leaves $33,408 a year: $2,784 a month, $1,285 every two weeks, $642 a week, or $16 an hour over 2,080 hours.

At $40,000, Missouri ranks 22nd of 51 jurisdictions for take-home pay, highest first. A no-tax state leaves $912 more a year, and the median state $140 less than Missouri. The lowest take-home at $40,000 is $31,886, in Oregon, $1,522 less than in Missouri.

Across the state line the same $40,000 leaves a single filer: Iowa $33,452, $44 more; Illinois $32,485, $923 less; Kentucky $33,038, $371 less; Tennessee $34,320, $912 more; Arkansas $33,328, $81 less; Oklahoma $33,066, $343 less; Kansas $32,888, $520 less; Nebraska $33,380, $29 less.

Some localities in Missouri levy their own income tax, and none of it is included in the $40,000 figures here; the local income tax pages explain how it works.

These Missouri figures treat the whole $40,000 as wages, take the standard deduction, claim no dependents and include no federal credits. A pre-tax 401(k) contribution or health premium would lower taxable income and raise take-home; a second income or itemized deductions would change it again.