Capital Gains Tax Return on Property UK: Records to Prepare
Property gains need strong records because sale proceeds, base cost, improvement costs, and reliefs can change the tax position.
Updated 2026-07-19
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Capital Gains Tax guides for UK property, shares, crypto assets, investments, and Self Assessment reporting.
Property gains need strong records because sale proceeds, base cost, improvement costs, and reliefs can change the tax position.
Some UK property disposals may need prompt reporting to HMRC, so early record gathering matters after completion.
Share gains need clean transaction records so disposals, costs, losses, and tax return entries are not guessed at year end.
Crypto tax returns depend on transaction quality, wallet history, exchange exports, and a careful review of gains and losses.
Use this checklist to gather the records an accountant will usually need before calculating Capital Gains Tax.