2024/25 Self-Assessment Tax Return deadline:
31.10.2025 (paper) or 31.01.2026 (online)
Disposal of UK residential property by UK residents:
CGT return and CGT payable 60 days after completion date
Disposal of UK land and property by non-UK residents:
CGT return and CGT payable 60 days after completion date
Capital gains annual exemption: £3000 for 2025/26