HMRC Letter Decoder
Written by Scott Jones, founder of PropertyKiln.
What that letter from HMRC actually means — Let Property Campaign, SA reminders, penalties, compliance checks and CGT nudges.
This calculator provides estimates based on current UK tax rates and regulations. It is not financial advice. Results depend on your individual circumstances. Consult a qualified accountant for advice specific to your situation.
Which HMRC letter have you received?
The most common HMRC letters landlords receive — what they mean, what to do, and how long you have.
Can't find your letter? HMRC also issues codes like SA250 (welcome to SA), CT603 (corp tax notice — for SPV landlords) and P11D reminders. Check the top-right of the letter for the code, or call HMRC on 0300 200 3310 quoting the letter reference.