Capital gains Tax

60-Day Capital Gains Tax (CGT) Reporting for UK Property Sales

Expert support to meet HMRC’s deadline, calculate your tax, and stay compliant

If you sell a UK residential property and make a taxable gain, you may need to report it to HMRC and pay any Capital Gains Tax within 60 days of completion.


This rule applies to many second homes, rental properties, and holiday lets—even if you’re already filing a Self Assessment return.

At The Chartwell Practice, we offer a dedicated 60-Day CGT Reporting Service to take the stress out of this process. We’ll calculate the gain based on your documents, guide you through HMRC’s registration requirements, and act as your agent to submit the return and confirm payment details once you’ve approved everything.


Get In Touch Now

Who needs to report Capital Gains Tax within 60 days?

You’ll need to report if:

  • You sell a UK residential property that is not your main home
  • The sale results in a Capital Gain that is taxable
  • You are UK resident (or non-UK resident selling any UK property)


If you’re unsure, we’re happy to assess whether the 60-day rule applies to your situation.

What is the 60-day deadline?

You must:

  • Report the gain to HMRC
  • Pay any CGT due
  • 

…within 60 days of the completion date (not the exchange date). Failing to do so may result in penalties and interest.

To Find Out More About Our Capital Gains Tax Support

Drop us a line and we’ll get back to you!

Sign up for our newsletter

Frequently Asked Questions

  • What does your service include?

    Our CGT reporting service includes:


    • Calculating the gain using your property sale documents and allowable costs
    • Advising on tax reliefs available (e.g. private residence relief, letting relief)
    • Registering you with HMRC for a Capital Gains Tax on UK Property account
    • Acting as your agent to prepare and submit the 60-day return once you approve it
    • Providing payment details (amount due, reference number, and due date)

  • What documents do I need to provide?

    We’ll confirm exactly what’s needed, but typically:

    • Completion statement from your solicitor
    • Original purchase documents (and any major improvement costs)
    • Estate agent and legal fees
    • Details of any capital improvements or reliefs claimed
    • Previous CGT returns (if applicable)

  • What if I already file a Self Assessment tax return?

    You still need to complete a separate 60-day CGT return if the sale meets the criteria. You’ll then report the gain again on your annual tax return, but the payment should already have been made.

  • Can you help if I’ve already completed the sale?

    Yes—but the clock is ticking. Get in touch as soon as possible and we’ll work quickly to assess your position and help you meet the deadline, or minimise any penalties if it’s already passed.

  • What are your fees?

    We offer fixed fees for most CGT reporting cases, based on the complexity of the transaction. You’ll receive a clear quote before we begin—no surprises.

  • How do I get started?

    Just get in touch using the form here, or give us a call. We’ll arrange a quick consultation, let you know what we need, and take care of the rest.

STILL UNSURE?
SEE ALL SERVICES OR GIVE US A CALL