Hello, I do not know if you still need this Information, but I will leave this here for anyone else who may need this information. FYI I got this from the IRS website.
Paper Return:
- If you have an IP PIN, you’re the primary taxpayer, and you fail to enter your IP PIN correctly, your return will take longer to process while we validate the information. This increased validation is for your protection but it will delay any refund you may be due.
