Payroll in Missouri: prices, state taxes and deadlines, town by town

Payroll pricing is quoted per month and consumed per employee, which is why the same provider can look cheap to a three-person shop in Missouri and expensive to a thirty-person one. Multiply the base fee by twelve, add the per-employee fee times your headcount times twelve, add the year-end filing charge, and only then compare providers.

What Missouri adds to every payroll

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.

What payroll services cost in 2026

The penalty schedule, in the IRS's own numbers

Read that last row twice. Income tax and the employee share of FICA are withheld in trust, which is why the penalty for never paying them over can be assessed personally against an owner or officer of a Missouri business under IRC 6672 - the corporation does not stand in the way. It is the strongest argument for hiring a provider, and the strongest argument for verifying that the provider actually files.

One detail in the IRS's favour: the percentages do not stack. A deposit more than 15 calendar days late is charged at 10%, not at 10% plus the earlier 2% and 5% tiers. That is the only piece of good news on this page.

The sentence that decides the whole question

The IRS puts it in two sentences on its outsourcing page: "The employer is ultimately responsible for the deposit and payment of federal tax liabilities," and if the third party fails to make those payments, "the employer is liable for all taxes, penalties and interest due." In other words, an employer who outsources payroll duties remains responsible for depositing and reporting employment taxes. Every payroll provider is selling reliability against that fact, and none of them can sell an exemption from it. The practical consequences for a Missouri employer are concrete: keep the IRS address of record as your own so notices reach you, ask for filing confirmations rather than assuming, and treat a provider's penalty guarantee as a contract term to read - not as a transfer of the legal duty.

Why only these two paths

The most expensive payroll service is the one whose mistake you sign for. The IRS states plainly that outsourcing payroll does not transfer the employer's responsibility to deposit and report employment taxes - which means a Missouri business comparing a $20 dollar plan against a $150 dollar plan is comparing the wrong two numbers if either provider misses a deposit.

Hard bar, verifiable by anyone: free to the buyer, and structurally multi-vendor - one request produces several competing quotes, which is the check against over-quoting that no single sales relationship provides. Marketplaces that charge buyers or route to a single seller are not listed, and any listed path that drops below the bar gets removed. We list no individual payroll brand as a recommendation: this site does not rank providers it cannot audit filings for.

Common questions