60-Day CGT Reporting
When you have to report a residential property gain to HMRC within 60 days, and what to include.
When the 60-day rule applies
- You sell or gift a UK residential property at a gain
- You're a UK resident — applies whether the gain is small or large (above your annual exempt amount)
- Non-residents must report all UK property disposals (gain or loss) within 60 days
When you don't need to file 60-day return
- Your only or main home (PPR relief covers the full gain)
- Sale at a loss with no other gains to report
- Transfer between spouses or civil partners
Key numbers
Completion date
Reporting deadline
Penalty for missing
Annual exempt amount 25-26
What you'll need
- Your HMRC Capital Gains Tax on UK Property account (Government Gateway)
- Acquisition cost + date + legal/SDLT fees paid on purchase
- Disposal value + completion date + selling costs (agent, legal)
- Capital improvement costs (with invoices)
- Periods of own occupation (for PPR / lettings relief)
- Estimated tax due — pay alongside the return
Penalties for late filing
- 1 day late: £100 fixed penalty
- 3 months late: £10/day for up to 90 days (max £900)
- 6 months late: 5% of tax due or £300 (whichever higher)
- 12 months late: further 5% or £300
- Tax paid late: interest at HMRC rate + 5% surcharges
You still need to report the same gain again on your annual Self Assessment — the 60-day return is in addition. Source: GOV.UK.