If you used TurboTax Online last year, log in to the same account that you used last year and your information will transfer over automatically.
HELP ME WALK THRU THE PROCESS OF TRANSFERRING TAX INFOR FROM TB TAX 2018 T0 TB TAX 2019
This TurboTax Help addresses transferring 2018 to 2019 in TurboTax Online.
This TurboTax Help addresses transferring 2018 to 2019 in TurboTax Desktop.