why does it say i need form 8959

You may have to look on your return to make sure there is not more income listed than should be. Your income needs to be under $250,000 joint filer or $200,000 single to avoid the additional Medicare tax. You may have added income in error that needs to be removed. You can look at your Form 1040 page one to see your income on lines 1 to 11.

To view your form 1040 and schedule 1 to 3:

1. Choose Tax Tools from your left menu bar in TurboTax Online while working in your program
2. Choose Tools
3. Choose View Tax Summary
4. See the Preview my 1040 option in the left menu bar and click on it
5. Choose the Back option in the left menu bar when you are done

see

https://ttlc.intuit.com/community/taxes/discussion/why-is-turbotax-forcing-me-to-use-do-it-yourself-deluxe-for-an-unnecessary-8959/00/3754160

actually i got it figured out.  i guess its really precise on the medicate tax in box 6 that needs to be exactly 1.45% of wages in box 5.   i rounded down in box 6 to the nearest dollar and it cleared it up.