Unique Tax Reference

 Self Employed PAs must be registered with HMRC and provide proof of their Unique Tax Reference (UTR).

A UTR number is your "Unique Taxpayer Reference" assigned by HMRC. Each self-assessment taxpayer receives a unique number to help track their tax records.

UTR numbers consist of 10 digits, and occasionally, a 'K' may appear at the end.

Once issued, your UTR number remains with you for life, similar to your National Insurance number.

It’s a 10-digit number. It might just be called ‘tax reference’.

You can find your individual UTR number:
- in your Personal Tax Account
- in the HMRC app
- on previous tax returns and other documents from HMRC 

To register for self-assessment, you'll need the following information:

- Full name
- Current address
- National Insurance Number
- Date of birth
- Phone number
- Email address

If you run your own business, you may also need:

- The date you started being self-employed
- Type of business
- Business address
- Business phone number

**If you cannot find your UTR on any documents or online, contact HMRC**