The address that you enter on your federal tax return is a mailing address. The IRS will send any correspondence about your tax return to that address, including a refund check if they send a refund by mail.
There is no separate physical address or residence address on a federal tax return. Where is TurboTax asking for your residence address?
The state where your mailing address is located might assume that it is your residence. If it's a state that has income tax, you might get a notice from the state saying that you have to file a state tax return and pay tax to that state.
