Reject Code IND-180-01 occurs when the 6-digit Identity Protection PIN (IP PIN) entered for the primary taxpayer does not match IRS records, often caused by using a previous year’s PIN or a typo. Fix this by locating your current year's CP01A letter, updating the IP PIN in your tax software, and re-submitting. See How to fix e-file reject IND-180-01? - TurboTax Support - Intuit