That depends on how you filed last year. If you filed jointly last year, then yes, you may transfer the information from both spouses. If you filed separately, you may transfer the information from one spouse and manually enter the information for the other spouse. You cannot merge two returns into one in TurboTax.
Please see the FAQ below for more information.
How do I transfer last year's return to TurboTax Online? https://ttlc.intuit.com/replies/3301662
