Missouri Biweekly Paycheck Calculator 2026

Here is exactly what your biweekly paycheck looks like in Missouri at common annual salary levels in 2026. Calculated for a single filer, standard W-4, biweekly pay frequency, no pre-tax deductions.

Single filer · standard W-4 · biweekly pay (26 periods/yr) · no pre-tax deductions · 2026 IRS withholding tables · Missouri published 2026 withholding method. Actual paychecks vary based on filing status, allowances, and deductions.

Missouri withholds state income tax from every paycheck. Your biweekly paycheck includes these deductions:

• Federal income tax (2026 IRS withholding tables)
• Missouri state income tax (withheld each pay period)
• Social Security tax — 6.2% on wages up to $184,500
• Medicare tax — 1.45% on all wages
• Employee benefit deductions

A biweekly pay schedule means you receive a paycheck every two weeks — 26 paychecks per year. To find your gross biweekly pay, divide your annual salary by 26:

Two months per year you will receive three biweekly paychecks instead of two. This is sometimes called a "three-paycheck month." Because benefit deductions are often fixed per paycheck, the extra check can feel larger than usual.

Your net biweekly paycheck in Missouri depends on your annual salary, W-4 filing status, Missouri state withholding elections, retirement contributions, health insurance deductions, and any additional withholding.

Both of Missouri's major cities impose a 1% earnings tax on wages earned within city limits, withheld from all 26 biweekly checks. It applies to residents wherever they work and to non-residents for the work performed in the city, and it is entirely separate from Missouri state withholding.

The calculator above takes the city rate as an entry. One per cent sounds small until you annualize it: on a $70,000 salary it is $700 a year, roughly $27 out of every biweekly deposit, with no exemptions and no graduated structure to soften it.

Missouri's method computes the tax for the pay period and rounds to whole dollars, which the calculator above follows. Twenty-six roundings across the year produce an annual total that differs slightly from an exact calculation.

The same salary paid semi-monthly rather than biweekly therefore produces a marginally different annual Missouri withholding. Neither is wrong — it is the rounding rule, applied a different number of times.

Missouri maintains no reciprocal withholding agreements, and it shares a border with eight states — Iowa, Illinois, Kentucky, Tennessee, Arkansas, Oklahoma, Kansas and Nebraska. Every one of them except Tennessee taxes wage income.

For biweekly cross-border workers, especially around Kansas City and St. Louis, that means two states withholding from the same 26 checks and a credit claimed at filing to unwind it. The city earnings tax gets no credit at all — it is a flat cost of working at that address.