Calculators · nothing you enter is stored
Tax loss calculators
Three small tools that work out the mechanical parts — which relief, which deadline, which order — so you can read the right guide with your own numbers in mind.
- Which loss relief?Answer two to four questions about your loss — shares, property, crypto, self-employment, letting or a company — and see the relief that usually applies, the guides to read and the claim deadline.
- Claim deadline calculatorChoose the tax year the loss arose to see each time limit as a date: capital loss claims, negligible value claims, sideways and early years relief, carry forward, terminal losses, rental losses, amending a return and overpayment relief. Companies: enter the accounting period end.
- Capital loss set-off illustratorEnter a year’s gains, the same year’s losses and losses brought forward; see them laid out as ledger entries in the order HMRC applies them, with the 2026/27 annual exempt amount, and what carries forward.
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