How to pay sales tax as a business in Missouri?
Start by registering for a sales tax license through the Missouri Department of Revenue. You can apply online through the MyTax Missouri portal at mytax.mo.gov. Registration is free and typically processes within a few business days. You cannot legally collect sales tax until you have an active license.
Once registered, you collect sales tax on taxable goods and services at the point of sale. Missouri’s state rate is 4.225%, but you also need to collect local taxes that vary by city and county. The total rate can range from about 5% to over 10% depending on the jurisdiction where the sale occurs. The Department of Revenue website has a rate lookup tool to find the exact rate for any Missouri address.
Your filing frequency depends on how much tax you collect. If you collect more than $500 monthly, you file monthly. Between $100 and $500, you file quarterly. Under $100, you can file annually. The DOR assigns your frequency when you register based on your estimated sales.
To actually file and pay, log into MyTax Missouri and select your sales tax account. Choose the filing period, enter your gross sales and taxable sales by location, and the system calculates what you owe. Pay electronically through the portal via ACH or credit card. You can mail a paper return with a check, but electronic filing is faster and creates a record you can reference later.
Due dates fall on the 20th of the month following your reporting period. Monthly filers reporting January sales pay by February 20th. Quarterly filers have until the 20th of the month following the quarter end. Late payments trigger penalties and interest immediately with no grace period.
Missouri requires you to track sales by location because local rates vary so much across the state. If you sell to customers in different cities or counties, you need to collect and report the correct local tax for each location. This is where many businesses struggle. Sales tax filing services can help if tracking multiple jurisdictions gets complicated.
Keep records of all sales, exempt sales, and tax collected. Missouri can audit back three years, and you need documentation to support your returns. Resale certificates from wholesale buyers and exemption certificates should be kept on file for every exempt transaction.
The process becomes routine once you understand it, but the first few filings often trip businesses up. Working with bookkeepers familiar with Missouri sales tax can help you set up tracking in QuickBooks so the data you need for filing is already organized when each due date arrives.
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