If you mean the IRS Identity, you get a new pin each year. The IRS mails a CP01A letter every year. If you do not have it you can:
- Retrieve your IP PIN online at the IRS's Get an IP PIN site, or
- Call the IRS at 1-800-908-4490 to have your IP PIN mailed to you (this can take up to 21 days)
If it is the 5 digit PIN that is used to validate your e-filed tax return, then as DoninGA mentioned you can change each year on your own.
@pacejack
