If you received e-file reject code IND-181-01, it's because this year's IP PIN was missing from your return. To resolve this, start by finding your 6-digit IP PIN: This will be on the CP01A letter you received in December or January for your 2023 taxes. PINs for prior tax years won't work
To enter, edit or delete a 6 digit IP PIN
Click on Federal Taxes (Personal using Home and Business)
Click on Other Tax Situations
Scroll down to Other Return Info
On Identity Protection PIN, click the start button
