What is the 60-day rule after selling a property?

If you sell a UK residential property that isn't fully covered by Private Residence Relief and there's CGT to pay, you must report the sale and pay the tax within 60 days of the completion date. This applies to: second homes, buy-to-lets, inherited properties you didn't live in, and any property where PRR only partially applies. The 60-day clock starts from the completion date — not the date you exchanged contracts. It's 60 calendar days, so weekends and bank holidays count. Even if your gain is small or you think you might not owe much, you still need to report within 60 days if there's any taxable gain at all. This is completely separate from your annual Self Assessment return. Missing the deadline results in an automatic late filing penalty from HMRC. If you've recently completed a property sale, message us on live chat as soon as possible so we can get started within the window.