State guide
How to Register for Missouri Payroll Taxes
Let a dedicated tax manager file your Missouri registration with you, or use the step-by-step guide below.
Last updated:
At a glance
1 combined DOR and DES application
2.376% new employer UI rate
$9,000 UI wage base
MO-941 frequency set by your estimate
Done for you
One Missouri application, filed right
Skip the paperwork. Your dedicated PayAdvisors tax manager registers you with the state and gets your tax IDs for you. In Missouri that means the combined DOR and DES registration and the filing frequency that follows.
- One tax manager who owns your file
- Combined registration filed with you
- Withholding estimate set to the right frequency
- Tax I.D. and DES account confirmed before payroll
Hands-on help from a real person who knows Missouri employer accounts. Use it alone or with managed payroll.
Quick answer
Missouri payroll tax registration at a glance
One online application covers both Missouri payroll accounts. The Department of Revenue (DOR) and the Division of Employment Security (DES) run a combined New Business Registration for withholding tax and unemployment tax, and DOR asks you to allow 2 to 3 business days for processing.
For 2026, new employers in most industries pay a 2.376% unemployment rate on the first $9,000 of each worker's wages. Your DOR filing frequency starts from your own estimate of future withholding.
Who must register
Who registers in Missouri
Unemployment liability has three main tests.
| Situation | Missouri requirement |
|---|---|
| $1,500 in wages, cash and in-kind, in a calendar quarter | Liable for Missouri unemployment tax |
| A worker for some portion of a day in 20 different weeks of a calendar year | Liable for Missouri unemployment tax |
| Liable under FUTA with a worker in Missouri | Liable for Missouri unemployment tax |
| You pay wages to anyone working in Missouri | Register with DOR for withholding |
| Five or more employees, or one or more in construction | Carry workers' compensation |
Registration steps
How to register in Missouri
One application, then a determination by mail.
- Start the combined New Business Registration for withholding and unemployment tax. Keep the confirmation number it gives you.
- Estimate your withholding honestly. DOR assigns a new employer's filing frequency from that estimate, and you must tell DOR if it does not match the statutory test.
- Watch the mail from DES. A liable employer gets a written determination with its tax rate, account number and any quarterly reports to complete.
- Collect Form MO W-4 and send DOR a copy within 20 days of each hire.
- Report new hires to the state registry within 20 calendar days of the hire date.
One form, two agencies
Missouri is quick to start and easy to mis-set
The application is shared. The frequency and liability follow-ups are not.
On your own
- Estimating withholding for the frequency test
- Tracking the DES liability determination
- Matching the MO-941 schedule as payroll grows
With your PayAdvisors tax manager
- Your tax manager sets the estimate with you
- We follow up on the DES determination with you
- You get a single calendar for every filing
Handled by your tax manager.
Prepare
What to collect first
Your withholding estimate matters more than it looks.
- A federal EIN, which you may need for registration
- Your first Missouri payroll date and quarterly wages
- A realistic estimate of monthly withholding
- Details of any Missouri business you acquired
- Whether any work is construction, which changes the workers' compensation threshold
Accounts
What you end up with
Two accounts from one application.
- A Missouri Tax I.D. Number for withholding, which is permanent and not transferable.
- A DES employer account with your tax rate in the determination of liability.
- An assigned MO-941 frequency, reviewed by DOR each year.
2026 numbers
Missouri payroll tax rates for 2026
After about two full years your UI rate is experience-based.
| Item | 2026 figure |
|---|---|
| New employer UI rate (most industries, incl. construction) | 2.376% |
| New 501(c)(3) nonprofit rate | 1.00% |
| UI taxable wage base | $9,000 per employee |
| Experience rate range | 0.0% to 6.0%, before surcharge or adjustment |
| Supplemental wage flat withholding option | 4.7% |
Pitfalls
Missouri mistakes to avoid
Frequency and zero returns cause most problems.
- Skipping zero returns. Every employer with an active withholding account files Form MO-941 even with no tax to report.
- Ignoring a frequency mismatch. If your assigned frequency differs from the statutory test, notifying DOR is your job.
- Deducting UI tax from pay. No part of the contributions can come out of a worker's wages.
- Leaving people out of the workers' compensation count. Part-time workers count, and corporate officers are employees.
- Filing the UI report late. Interest starts the day after the due date, and penalties follow.
Related duties
Other Missouri employer obligations
These run alongside the tax accounts.
- Workers' compensation. Required at five or more employees, or one or more in construction. Sole proprietors and partners are not covered unless they elect it, while LLC members are presumed covered unless they opt out. See the Division of Workers' Compensation.
- New hire reporting. Within 20 calendar days; an intentional failure can bring a fine of up to $25.
- Minimum wage: $15.00 an hour in 2026. Tipped employees must get at least $7.50 an hour plus tips reaching $15.00. Retail and service businesses with annual gross income under $500,000 are not required to pay the state rate.
- Electronic UI filing. Employers with 50 or more employees must file DES reports electronically, online at uinteract.labor.mo.gov.
Filing calendar
Missouri deadlines after registration
MO-941 timing follows how much you withhold.
- Quarter-monthly MO-941: over $9,000 withheld per month, paid electronically.
- Monthly: $500 to $9,000 per month.
- Quarterly: $100 per quarter to $499 per month. Annual: under $100 per quarter.
- DES Contribution and Wage Report: filed and paid by the last day of the month after each quarter; a Saturday, Sunday or holiday moves it to the next working day.
- First report: newly subject employers get a 30-day extension from the date of the liability notice.
Official links
Missouri agency links
Official forms, rates and guidance.
Missouri registration questions
How do I register for Missouri payroll taxes?
Use the combined Online New Business Registration from DOR and DES, which covers both withholding tax and unemployment tax. Allow 2 to 3 business days for processing.
When does a Missouri employer owe unemployment tax?
When it pays $1,500 in wages in a calendar quarter, has a worker in 20 different weeks of a calendar year, or is liable under FUTA and employs a worker in Missouri.
What is the 2026 Missouri new employer rate?
2.376% for most industries, including construction, and 1.00% for 501(c)(3) nonprofits, on the first $9,000 of wages.
How often do I file Missouri withholding?
Quarter-monthly above $9,000 a month, monthly from $500 to $9,000, quarterly from $100 a quarter to $499 a month, and annually below $100 a quarter.
When is the DES quarterly report due?
By the last day of the month after each quarter, moved to the next working day for a Saturday, Sunday or holiday.
I am the only employee of my S corporation. What do I need in Missouri?
If you take wages, complete the combined registration for withholding and unemployment tax. A dedicated tax manager can complete the registration with you as part of our S corp payroll package.
Does a small Missouri business need workers' compensation?
Yes at five or more employees, or at one or more in construction.
When are new hires due?
Within 20 calendar days of the hire date.
How is registration priced?
Most states issue two IDs, one for withholding and one for unemployment insurance. Pricing depends on the states and accounts involved. We'll quote it on a quick consultation.
Is this tax advice?
No. It summarizes official guidance from the Missouri Department of Revenue, the Department of Labor and Industrial Relations and the Department of Social Services. Ask your CPA or tax advisor about your own facts.
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Next step
Let us set up Missouri with you
A dedicated tax manager files the combined registration with you, sets your withholding estimate and confirms both accounts before your first payroll.
About this guide
Last verified and sources
Last verified October 26, 2026 against the Missouri Department of Revenue, the Department of Labor and Industrial Relations and the Department of Social Services. This guide is general information, not tax or legal advice.
Related
- State payroll tax registration (all states)
- California payroll tax registration guide
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- Iowa payroll tax registration guide
- Kansas payroll tax registration guide
- Arkansas payroll tax registration guide
- New Mexico payroll tax registration guide
- Nebraska payroll tax registration guide
- Payroll setup for new businesses
- Payroll tax filing and compliance
- S corp payroll
- S corp payroll setup checklist
Sources
- Missouri Department of Revenue, Online New Business Registration
- Missouri Department of Labor and Industrial Relations, Liability for Unemployment
- Missouri Department of Labor and Industrial Relations, Tax Rates
- Missouri Department of Labor and Industrial Relations, Quarterly Reports
- Missouri Division of Employment Security, Instructions for Completing MODES-2699 (PDF)
- Missouri Department of Revenue, Maintain Employer Withholding Tax
- Missouri Department of Revenue, Form 4282 Employer's Tax Guide 2026 (PDF)
- Missouri Division of Workers' Compensation, Who is required to carry workers' compensation insurance coverage?
- Missouri Department of Social Services, New Hire Information
- Missouri Department of Social Services, New Hire Frequently Asked Questions
- Missouri Department of Labor and Industrial Relations, Division of Labor Standards, Minimum Wage