The Self-Select PIN is a 5-digit number that you chose last year and is not kept in our system. Only you have access to that number.
Instead of a PIN you can use last year's Adjusted Gross Income (AGI) iOn your 2019 1040 return, the AGI is found on line 8b. For more information please see this TurboTax Help article: How do I find last year’s AGI?
