Paycheck calculatorAfter taxes and rentSt. Louis › $100,000

$100,000 after taxes and rent in St. Louis (2026)

A $100,000 salary in St. Louis takes home $6,209 a month after federal tax, FICA, Missouri state tax and St. Louis city tax. A typical one-bedroom costs $995 (HUD FY2026), leaving $5,214 a month for everything else — rent is 16.0% of take-home, within the 30% guideline. A studio leaves $5,254; a two-bedroom $4,991.

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 %

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 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

74.5%take-home
$6,209
take-home pay a month
from a gross of $8,333
Effective tax rate 25.5%Marginal rate 41.5%Total taxes $25,490
Federal tax 13.2%FICA 7.6%State 3.7%Local 1.0%Take-home 74.5%
LineMonthlyYearly
Gross pay$8,333$100,000
Federal income tax−$1,098−$13,170
Social Security (6.2%)−$517−$6,200
Medicare (1.45%)−$121−$1,450
Missouri state income tax−$306−$3,670
St. Louis (1%)−$83−$1,000
Take-home pay$6,209$74,510

$100,000 in St. Louis: monthly budget after rent

UnitHUD FMRLeft after rent / moRent share of take-home
Studio$955$5,25415.4%
One bedroom$995$5,21416.0%
Two bedrooms$1,218$4,99119.6%
Three bedrooms$1,568$4,64125.3%

Rents are HUD Fair Market Rents for FY2026 (the 40th-percentile gross rent, utilities included, for the metro area — a modest, typical unit, not a luxury one). Take-home is for a single filer with no pre-tax deductions, 2026 tables, city tax where it applies. The 30% rule compares rent with take-home pay, not gross.

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