I would like to file my 2015 State taxes due to an audit request by the State I live in. The taxes were already paid through my employer. How do I do this?

TurboTax does not support tax year 2015.

You should be able to go to your state department of revenue website and in the Individual tax returns section there should be a listing for prior year returns.

TurboTax no longer supports tax year 2015.  If you are required to file the 2015 state tax return you will need to find a local tax professional to assist you in completing the state tax return.