I filed a state return with Florida and didn't need to.

[oshai97]

How do I fix this?

[mesquitebean]

Florida does not have a state income tax.   Only people who have Florida businesses or rental property with tangible personal property have to file a DR-405 with the county property appraiser by April 1. 

http://dor.myflorida.com/dor/property/tpp/
and
http://floridarevenue.com/dor/property/brochures/pt114.pdf

If you don't have a Florida business or rental property with such tangible personal property, then you do not have to file a Florida return.  You can choose to skip the Florida return, or delete the Florida return before paying and filing if it's not needed.

https://ttlc.intuit.com/questions/1900608-how-do-i-delete-my-state-return-in-turbotax-online

If you've already paid for it and don't need it as explained above, you can talk to TurboTax Customer Support and tell them you didn't need it.

FAQ:  What is the TurboTax phone number?

https://ttlc.intuit.com/replies/3300041