2 different Pins - the 5 digit one is pin you assign which is used by TT for e-file. The 6 digit one is optional Identity protection Pin assigned by the IRS and this changes every year. It's optional to have the IRS Pin but if you have a pin assigned it needs to be on your return and needs to be the current one for this year, or your return will reject - you can check at https://www.irs.gov/your-account
