Company Unique Tax Reference (UTR)

Every company has a Unique Tax Reference

When you set up your limited company, HMRC will post your Corporation Tax UTR to the company’s registered address. You may also receive a CT600 notice (a letter reminding you to file your company tax return) that includes the same code.

What the UTR is for

Your company UTR is a 10-digit number that identifies your business for Corporation Tax purposes. We’ll need this code to file your company’s tax returns with HMRC.

Keep it confidential - it should only be shared with your accountant or HMRC.

You may also have a separate personal UTR for Self Assessment. Make sure not to confuse the two.

If you haven’t received it

You can request a copy of your company’s UTR from HMRC online. HMRC will post it to the business address registered with Companies House.