My wife did not work in 2020 and has no W-2 but it wont let me finish filling until I put one in for her what do I need to do?

[ToddL99]

Delete the Form W-2 that carried over (for your wife) from your 2019 tax return.

See: How do I delete forms in TurboTax Online? 

Why does this happen? When you transfer the information from your prior year return, the program automatically includes certain forms in the current year - to make sure you don't forget to update those forms. If a form is no longer required (e.g. W-2s, K-1s, Schedule C), you have to delete them from the current year.