✦ State Payroll Tax Registration

Register for payroll

taxes in
Missouri
— we handle it.

To set up payroll in Missouri requires two state agency registrations plus awareness of local earnings taxes in Kansas City and St. Louis. We handle the state registrations and assess local requirements.

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Missouri
Registration Requirements

Register for payroll taxes today - here’s what’s required

Here are the state agencies you need to register with as an employe in your state. We handle all registrations on your behalf.

Withholding Tax

Missouri Department of Revenue

Handles state income tax withholding registration for all Missouri employers.

Unemployment Insurance

Missouri Division of Employment Security

Handles Unemployment Insurance (UI) registration for all Missouri employers.

✦ What Employers Need to Know

Key facts about your state payroll taxes.

A quick overview of what's involved before you run your first payroll.

Missouri has a flat income tax rate of 4.7% for 2025, down from 4.8% in 2024. Missouri has been systematically reducing its top rate and is expected to continue doing so.
Missouri new employers pay a UI rate of 2.376% on the first $10,500 of each employee's wages. Kansas City and St. Louis impose local earnings taxes of 1% on wages earned within city limits.
Missouri has no state SDI program. Two state registrations are required (Department of Revenue for withholding, Division of Employment Security for UI), plus local registration if employees work in Kansas City or St. Louis.
Employers with employees working in Kansas City or St. Louis must register for local earnings tax separately with those cities — a commonly missed step for multi-location employers new to Missouri.
✦ How It Works

We handle the whole process for you

You provide the business info — we do the rest.

1

Complete our intake form

Tell us about your business — name, EIN, entity type, and start date. Takes about 5 minutes.

2

We review & prepare

Tell us about your business — name, EIN, entity type, and start date. Takes about 5 minutes.

3

We submit to the state

We register your business with the appropriate state agencies through official portals.

4

You receive your credentials

We deliver your account numbers and filing details — ready to load into your payroll system.

Ready to get registered?

Flat fee, no surprises. We work inside your existing payroll system.

Launch
$0
to start
State payroll tax checkup
Verify if you're already registered
Free provider recommendation if needed
State Registration
$150
per agency registration
We register with all required state agencies
Credentials delivered to you
Works with your existing payroll system
Setup Plan
$599
one-time
Up to 3 state registrations included
Full payroll system configuration
First payroll run verification

State Payroll Tax FAQs

Common questions about registering for payroll taxes.

Do I need to register for payroll taxes in my state?

Yes- if you have employees working in your state, you are required to register with the appropriate state tax agencies before running your first payroll. Failing to register can result in penalties and back taxes.

Do Kansas City and St. Louis have payroll taxes?

Yes — both Kansas City and St. Louis impose a 1% earnings tax on wages earned within city limits and on residents working outside the city. If your employees work in either city, you must register and withhold the local earnings tax. We assess your locations and include local tax registration where applicable.

What information do you need to get started?

We'll need your business name, EIN, entity type, physical address, start date of payroll, and owner information. You provide it once through our intake form and we handle everything from there.

How long does the registration process take?

+Processing times vary by state. Most registrations are completed within 5–10 business days. We keep you updated throughout the process and notify you as soon as your credentials are ready.