You Sold a UK Property. Now What?
You completed the sale of your UK rental flat last Tuesday. The money landed in your Dubai bank account. You feel relieved. One less thing to manage from 3,500 miles away.
Here is the thing most non-resident sellers do not realise: you have 60 calendar days from the date of completion to report the sale to HMRC and pay any Capital Gains Tax (CGT) due. Not 61. Not "before the next self-assessment deadline." 60 days.
Miss it and HMRC charges you a penalty. The clock starts ticking the moment the buyer's solicitor transfers the funds. Most agency founders I meet in Dubai, Abu Dhabi, and across Europe find this out the hard way when a penalty letter arrives.
This article explains exactly how the 60-day reporting rule works, who it applies to, what happens if you miss it, and how to avoid the mistakes that cost expat property sellers thousands in avoidable penalties.
Who Does the 60-Day Reporting Rule Apply To?
The rule applies to anyone who is non-resident for UK tax purposes when they dispose of a UK residential property. "Non-resident" means you spend fewer than 183 days in the UK in a tax year, or you have left the UK and are treated as non-resident under the Statutory Residence Test.
If you live in the UAE, Saudi Arabia, Qatar, Singapore, or anywhere else outside the UK, and you sell a UK property, you are caught by this rule. There is no turnover threshold. No exemption for small gains. If you sell, you report.
There is one exception: if the property was your main home and you qualify for Private Residence Relief, you may not owe any CGT. But you still need to report the sale within 60 days to confirm no tax is due. HMRC does not assume you qualify. You must tell them.
What Counts as a "Residential Property" for This Rule?
HMRC defines residential property broadly. It includes houses, flats, apartments, and any building used or suitable for use as a dwelling. It also includes the land attached, up to 0.5 hectares (roughly 1.24 acres).
Commercial property sales by non-residents follow different rules. The 60-day deadline applies to residential property only. If you sell a mixed-use building (a shop with a flat above), the residential element triggers the reporting obligation.
What Triggers the 60-Day Clock?
The clock starts on the "date of disposal." For property, this is the date contracts are exchanged, not the date you receive the money. In most cases, exchange and completion happen on the same day for residential sales. But if they do not, the date of exchange is the trigger.
Here is where it gets specific. You must file a Non-Resident Capital Gains Tax (NRCGT) return within 60 days of that date. This is not a section of your annual self-assessment. It is a standalone return with its own form and its own payment deadline.
You file it through HMRC's online service. You pay the estimated tax at the same time. HMRC then reconciles the figures when you file your self-assessment for the year. Any overpayment gets refunded. Any underpayment gets charged.
How Is the Tax Calculated for a Non-Resident?
Non-residents pay CGT on the gain made since 6 April 2015 (the date the rules were introduced for non-residents). If you owned the property before that date, you only pay tax on the gain that accrued from 6 April 2015 onwards.
You can choose to use the "straight-line" method (apportioning the gain evenly over the ownership period) or the "actual" method (using a valuation at 5 April 2015). The actual method often produces a lower gain, but it requires a professional valuation from that date. You need evidence.
The CGT rates for non-residents are the same as for UK residents:
- 18% if your total UK income and gains fall within the basic rate band (£12,571 to £50,270)
- 24% if they fall within the higher rate band (above £50,270)
You also have your annual CGT allowance. For 2025/26, that is £3,000. If your gain is below £3,000, you owe no tax. But you still need to report the disposal within 60 days if you are non-resident. The allowance is not a reporting exemption.
Worked Example: A Dubai-Based Agency Founder
Let me give you a real-world scenario. A digital agency founder I work with moved from Manchester to Dubai in 2021. He kept a flat in Soho that he rented out. He sold it in June 2025 for £475,000. He bought it in 2018 for £350,000. His total gain was £125,000.
He had no other UK income in 2025/26. His personal allowance (£12,570) and CGT allowance (£3,000) reduced the taxable gain to £109,430. The first £37,700 of that fell within the basic rate band (18% CGT = £6,786). The remaining £71,730 fell into the higher rate band (24% CGT = £17,215). Total CGT due: £24,001.
He had to file the NRCGT return and pay that £24,001 within 60 days of completion. He did not. He assumed it would be handled through his self-assessment. The penalty for late filing started at £100, then £10 per day after three months, then more. By the time he called us, the penalties and interest had added £1,800 to his bill.
What Happens If You Miss the 60-Day Deadline?
HMRC does not send reminders. They do not send a "friendly nudge" when day 55 passes. They simply apply penalties when the return is late.