The IRS has eliminated the use of a PIN to e-file your tax return. To verify your identity for e-filing will use last year's adjusted gross income (AGI) as your PIN.
You can get a copy of your 2019 tax return, from TurboTax it will have your AGI. Follow these steps to get a copy of your prior-year tax return.
Sign in to TurboTax making sure you're using the same TurboTax account (with the same username) as in prior years.
- Select Documents from the navigation when it appears.
- Use the drop-down menu at the top of the screen to choose the tax year you want and then select Download PDF.
This link How do I access a prior year return? has additional information that you may find useful.
-follow this link for additional information-
How to Find Your Adjusted Gross Income (AGI) to ... - TurboTax