Can I correct a self employment tax computation on my return?

Schedule SE line 8a should represent total social security wages and tips (total of boxes 3 and 7 on Form(s) W-2) and railroad retirement (tier 1) compensation. 

Box 3 on your Form W-2 is your Social Security wages, which may differ from your Box 1 wages subject to income tax. Box 7 on your W-2 is for Social Security tips. This will only be for the wages of the person who is self-employed.

Check your entries for your Forms W-2 in the Wages section if the amount on Schedule SE, line 8a, doesn't equal what you see on your Forms W-2 for Boxes 3 and 7 combined.

There are a number of possible reasons that what you see on your screen doesn't match the figures you entered. When you are using the Online version, it can also happen that there is a delay in your entries appearing on your screen due to Internet issues. 

If none of these suggestions resolves the issue, you may need to log out of the program, clear your cache and cookies, and log back in. Please see the TurboTax FAQ here for instructions on clearing your cache. See here for instructions on clearing your cookies. You may also try using another browser or using the phone app here if the above does not work. 

See this TurboTax tips article for more information regarding self-employment tax.