If you have previously registered for a UTR number but think you have lost it, there are few places to look before you contact HMRC:
On any HMRC post relating to Self-Assessment (usually detailed in the top right)
Completed a return last year? Your UTR will be detailed on the front page
If you are registered for Self-Assessment HMRC online services, your UTR will be detailed on the homepage.
No luck? You will need to contact HMRC to request your reference to be resent in the post. You can do this by calling 0300 200 3310, alternatively, why not try their new webchat
service!
Do I need to register?
Not sure if you need to file a Self-Assessment, check out our recent blog.
From 6th April 2020, if you’re UK resident and sell a residential property in the UK, you’ll have 30 days to report any gains to HMRC and pay any Capital Gains Tax due.