An extension to file is not an extension to pay tax.
St. Louis, Missouri imposes a 1% earnings tax on wages and net profits earned in the city, administered by the Collector of Revenue. A business or self-employed filer who needs more time to file the annual earnings tax return (Form E-234) requests an extension using Form E-8. As with Kansas City's parallel earnings tax, the extension is for filing only - payment of the tax due remains required by the original filing deadline.
| Item | Detail |
|---|---|
| Form required | E-8 (Application for Extension of Time to File Form E-234) |
| Automatic | Granted upon timely, complete request with payment of tax due |
| Payment | Not extended - tax due must accompany the extension request |
| Authority | City of St. Louis Collector of Revenue, Earnings Tax administration (Form E-8) |