Here is what the IRS says:
How to retrieve your IP PIN online
You may use our Get an IP PIN online tool to retrieve your current IP PIN. We require you to register and verify your identity in order to use the tool. This process is essential to protect your personal and tax information. Please refer to “Step 2: What You Need”, before using the online tool. Follow the prompts to retrieve your IP PIN.
If you previously created an online account and obtained an IP PIN, access Get an IP PIN and log in to your account with your username and password. You may be required to verify your identity again due to our increased account security. Follow the prompts to retrieve your IP PIN.
How to get your IP PIN reissued
The service to have your IP PIN reissued by phone is currently unavailable.
If you cannot access the Get an IP PIN online tool, your best alternative at this time is to file your tax return by paper without your IP PIN.
You’ll need to complete and mail a paper tax return without your IP PIN. We’ll review your return to confirm it’s yours but this may delay any refund you’re due.
If you file your return without your IRS assigned IP PIN:
Retrieve Your Identity Protection PIN (IP PIN) Page Last Reviewed or Updated: 27-Apr-2020
I have a pin I used with it’s for years. It’s website says a pin is not required. Is this just a turbo tax requirement?
Sometimes a PIN is not always required. Please click here for more details.