Unemployment rate, taxable wage base, minimum wage and withholding
Federal payroll rules are identical everywhere; the money differs by state. What Missouri assigns a new St. Louis employer, what wage base it applies, and what its minimum wage requires are below with state sources.
Two free marketplace paths: one form brings back multiple vetted payroll providers who know they are competing for the account.
Missouri sets the new-employer unemployment tax rate by state formula rather than as one flat number, and applies it to the first $9,000 of each employee's wages per year - the state-set portion of every St. Louis payroll, shown in full in the table below.
Missouri sets its minimum wage at $15.00, the floor every St. Louis hourly rate has to clear before overtime, tip credits and local ordinances are applied on top.
Employers in St. Louis's county pay about $71,241 a year per employee on average across 195,963 covered jobs (Census County Business Patterns 2023) - the wage base every unemployment rate and withholding schedule is applied to locally.
Two St. Louis businesses with identical payrolls can owe materially different amounts because of Missouri's unemployment tax alone: new employers are assigned a starting rate, experience moves it within a statutory band, and the taxable wage base decides how much of each salary the rate applies to. Both figures are published by the state and shown below with sources.
The state layer is where payroll compliance stops being generic. Missouri sets the unemployment rate and wage base your account is billed on, the minimum wage your rates must clear, the deadline for reporting every new hire, and the rule that decides when a departing St. Louis employee's final check is legally late.
Put a state payroll setup review out to competing quotes before you compare prices
Two free marketplace paths: one form brings back multiple vetted payroll providers who know they are competing for the account. Competing quotes are the only reliable way to see what your headcount actually prices at.
External links go to the marketplaces' own sites and forms. This site may earn a referral fee at no cost to you - it never changes the data above, and no individual payroll provider pays to appear in our research.
What Missouri adds to every payroll
| Question | Missouri answer |
|---|---|
| State unemployment tax - new employer rate | 2.376% for 2026 (same for mining and construction); 1.00% for 501(c)(3) nonprofits (range 0.0% - 6.0%, NOT including the maximum rate surcharge or the contribution rate adjustment) |
| Taxable wage base per employee | $9,000 - Primary: labor.mo.gov DES tax rates page gives the 2026 taxable wage limitation of $9,000 (down from $9,500 in 2025, $10,000 in 2024, $11,000 in 2022) and a 2022-2026 new employer rate table showing |
| State minimum wage | $15.00 - Employers must pay tipped employees at least 50% of the minimum wage ($7.50) plus enough to reach $15.00 total |
| State income tax withholding | graduated, roughly 2%–4.7% |
| Local payroll or income taxes | Yes — two cities levy a 1% earnings tax on wages, withheld by the employer: St |
Missouri's taxable wage base ratchets down as the trust fund stays healthy - $11,000 in 2022 to $9,000 in 2026 - and construction gets no penalty rate, paying the same 2.376% new employer rate as everyone else.
This page is independent research, not legal, tax or accounting advice. Federal deposit rules and state wage, unemployment and final-paycheck laws change - verify current requirements with the IRS and your state labor and revenue agencies, or with a licensed CPA or attorney, before acting.
Why two identical St. Louis payrolls owe different amounts
Unemployment tax is charged as a rate against a capped amount of each employee's wages, and both halves of that formula are state decisions. A new St. Louis employer is assigned a starting rate; once there is claims history the rate moves within the state's statutory band. The wage base decides how much of a salary the rate touches - which is why a state with a high base and a low rate can cost more than the reverse. Neither number is negotiable, but both are worth knowing before comparing payroll quotes that quietly assume one state.
What this means in St. Louis
Withheld income tax and the employee share of FICA are trust funds - money that was never the company's. That is why the Trust Fund Recovery Penalty can reach an owner or officer personally, and why 'the company can't pay' is not an exit from this particular bill.
This page is independent research, not legal, tax or accounting advice. Federal deposit rules and state wage, unemployment and final-paycheck laws change - verify current requirements with the IRS and your state labor and revenue agencies, or with a licensed CPA or attorney, before acting.
Put a state payroll setup review out to competing quotes before you compare prices
Two free marketplace paths: one form brings back multiple vetted payroll providers who know they are competing for the account. Competing quotes are the only reliable way to see what your headcount actually prices at.
External links go to the marketplaces' own sites and forms. This site may earn a referral fee at no cost to you - it never changes the data above, and no individual payroll provider pays to appear in our research.
Common questions
Do I have to file W-2s and 1099s electronically?
Almost certainly yes. The threshold dropped to 10 returns: if you file 10 or more information returns of all types combined in a calendar year, they must be filed electronically. Articles still citing the old 250-return threshold are out of date. Any full-service payroll provider files electronically as standard - confirm it is included rather than billed per form.
When does a final paycheck have to be paid?
That is set by state law, and it differs for employees who are fired versus employees who quit. Several states require immediate payment on termination; others allow the next regular payday; a few add a penalty that accrues per day until the check is delivered. Unused vacation payout is likewise state-specific. The rule for Missouri is on this site's final-paycheck page with its source.
How much does a payroll service cost for a small business?
In 2026 published pricing, payroll services charge a monthly base fee of roughly $20-$150 dollars plus $4-$15 dollars per employee per month. A ten-employee business commonly lands between $70 and $250 dollars a month before add-ons. Full outsourced processing is often quoted per person instead, at roughly $30-$100 dollars per employee per month. These are directional market ranges, not quotes.
What is the Trust Fund Recovery Penalty?
Withheld income tax and the employee share of Social Security and Medicare are held in trust for the government. When those amounts are not paid over, the IRS can assess a penalty equal to the full unpaid trust-fund amount personally against any responsible person who willfully failed to pay - an owner, officer or bookkeeper. It is one of the few business tax liabilities that reaches through a corporation or LLC to an individual.
How much does payroll cost per employee per month?
Per-employee fees cluster at $4-$15 dollars per month on top of the base fee for standard payroll software and services. Fully outsourced processing and PEO-style arrangements are quoted differently - commonly $30-$100 dollars per person per month or a percentage of gross payroll - and bundle benefits administration and compliance work that standard payroll does not include.
Put a state payroll setup review out to competing quotes before you compare prices
Two free marketplace paths: one form brings back multiple vetted payroll providers who know they are competing for the account. Competing quotes are the only reliable way to see what your headcount actually prices at.
External links go to the marketplaces' own sites and forms. This site may earn a referral fee at no cost to you - it never changes the data above, and no individual payroll provider pays to appear in our research.
Prices in nearby cities
St. Martins · St. Mary · St. Paul · St. Peters · St. Robert · St. Thomas · Stanberry · Stark City · Ste. Genevieve · Steele · Steelville · Stella