What is my unique tax reference (UTR) number in UK?

Your unique taxpayer reference , is a unique code that identifies either an individual taxpayer or an individual company. UK UTR numbers are ten digits long, and may include the letter ‘K’ at the end.

Unique taxpayer reference numbers are used by HMRC to keep track of taxpayers, and is the ‘key’ that the taxman uses to identify all of the different moving parts related to your UK tax affairs.

Read more:

• United Kingdom company formation
• Company tax return UK