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 |
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Contact | |
Agency Websites | |
Small Business Information |
State of Missouri Employer's Tax Guide |
Forms |
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 Kansas City Form RD-100 (PDF) Kansas City Online Earnings Tax St. Louis Form E-9
City of St. Louis Collector of Revenue
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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 |
Payroll resources: Tools, supplies, websites
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