Answer: The filing fees are the same, no matter where you file for bankruptcy. In Tennessee, as in the other 49 states, that cost is $338 to file for Chapter 7 bankruptcy or $313 to file for Chapter 13 bankruptcy ($335 and $310 respectively until December 1, 2020)
If you can't afford to pay the fee all at once, you can ask the court to let you pay in installments. If you are filing under Chapter 7, you can also ask the court to waive the bankruptcy filing fee altogether (this option isn't available in Chapter 13).
If you hire a lawyer, your attorney fees will depend on whether you use Chapter 7 or Chapter 13 (Chapter 13 is more complicated and will cost more) and how complex your case is. For a relatively simple Chapter 7 case, an attorney might charge you a flat fee. For more complicated cases, an attorney might charge by the hour instead.
Before you hire a bankruptcy lawyer, find out how the fee will be calculated and how much you will have to pay in total. Getting this information up front will help you comparison shop. It will also ensure you don't run into any surprises down the road.