Missouri: The Show Me State

Here are some agency and other resources you can use to research payroll, tax, and business information in Missouri (MO). For other states, go to Payroll Resources.

Information Resource
Contact

Department of Revenue: Contact Information/Office Locations

Department of Labor and Industrial Relations Contacts

Agency Websites

Missouri Department of Revenue

Missouri Department of Labor and Industrial Relations

Small Business Information

State of Missouri Employer's Tax Guide

Missouri Business Development Program

Missouri Small Business and Technology Development Centers

Forms

Online Business Registration

Form 2643, Missouri Tax Registration Application (PDF)

Form 126, Missouri Registration Change Request (PDF)

Form MODES-2699-5, Unemployment Tax Registration (PDF)

Report on Change of Business Operations

Withholding Tax Forms

Kansas City Form RD-100 (PDF)

Kansas City Online Earnings Tax

St. Louis Form E-9
Problems with the link? Copy and paste this URL to your browser:
dynamic.stlouis-mo.gov/collector/docs/E-9-2008-fillable.pdf

City of St. Louis Collector of Revenue
Problems with the link? Copy and paste this URL to your browser:
dynamic.stlouis-mo.gov/collector/earnings-tax-home.cfm

SUI Tax Rate Notice (Sample)

Move your mouse over the image to see an example Missouri SUI rate notice, or click here to open in a separate window.

This is only an example — see your own notice for your specific rates.

Employee State Withholding Certificate Form MO W-4: Employee's Withholding Allowance Certificate
New Hire Reporting Missouri New Hire Reporting
Workers' Compensation Missouri Workers' Compensation

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