Paycheck calculator › Cities › St. Louis › $40,000

$40,000 after taxes in St. Louis, MO (2026)

A $40,000 salary in St. Louis leaves $33,008 a year in take-home pay in 2026 — $2,751 a month, $1,270 every two weeks — for a single filer: $2,620 federal income tax, $3,060 FICA, $912 Missouri state tax, $400 St. Louis city tax. Married filing jointly: $35,577.

Your pay

Gross pay

State

Filing status

City / local tax

401(k) / 403(b) %

Bonus (one-off)

Pre-tax deductions & HSA

Health premiums / yr

HSA / yr

Other pre-tax / yr

Custom local rate %

Age 50+ (401k catch-up) Family HSA limit

401(k) lowers income tax but not Social Security/Medicare. Health premiums and HSA through a cafeteria plan lower both.

W-4 details (2020 or later form)

Step 2: two jobs / spouse works

Step 3: dependents credit $

Step 4a: other income / yr

Step 4b: extra deductions / yr

Step 4c: extra withholding / check

Paychecks per year (for 4c)

Tax tables

Leave blank for standard withholding. Dependents: $2,000 per qualifying child, $500 per other dependent.

Take-home pay

$1,270

take-home pay every two weeks

from a gross of $1,538

Effective tax rate 17.5%Marginal rate 25.2%Total taxes $6,992

Federal tax 6.6%FICA 7.6%State 2.3%Local 1.0%Take-home 82.5%

Line	Bi-weekly	Yearly
Gross pay	$1,538	$40,000
Federal income tax	−$101	−$2,620
Taxable income $23,900 = wages $40,000 − standard deduction $16,100, through the 2026 brackets (10%/12%/22%/24%/32%/35%/37%).
Social Security (6.2%)	−$95	−$2,480
6.2% of $40,000.
Medicare (1.45%)	−$22	−$580
1.45% of $40,000.
Missouri state income tax	−$35	−$912
Taxable $23,245 = wages $40,000 − deduction $16,100. Brackets 0%/2%/2.5%/3%/3.5%/4%/4.5%/4.7%.
St. Louis (1%)	−$15	−$400
1% of wages.
Take-home pay	$1,270	$33,008

Other salaries in St. Louis

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