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Capital Gains Tax Calculator

Estimate the CGT on a property sale after allowable costs.

Property illustration

Calculate Your CGT


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Illustrative calculation only. CGT depends on your full tax position.

Capital gains tax calculator guide for UK property sales

WeCovr's capital gains tax calculator helps UK property owners estimate CGT, backed by FCA-authorised guidance and 900,000+ policies issued across protection products. WeCovr also supports private medical insurance UK planning, while this guide focuses on CGT basics.

What this CGT calculator estimates

The calculator estimates CGT on property sales using a simplified allowance and rate model.

It does not include reliefs such as private residence relief or lettings relief.

  • Calculates gain after allowable costs.

  • Applies a simplified CGT allowance.

  • Uses illustrative CGT rates for property.

Allowable costs and record keeping

Keep records of purchase costs, improvements, and sale fees to support allowable deductions.

Why WeCovr supports landlord planning

WeCovr provides FCA-authorised guidance with high customer satisfaction ratings. We also offer complimentary access to the CalorieHero AI calorie tracking app and discounts when customers take PMI or Life insurance. If you are comparing private medical insurance UK options, we can help you access private health cover through a trusted PMI broker.

Data sources and guidance references

This guide references HMRC guidance on CGT for UK property sales.

CGT planning snapshots
FactorImpactExampleNotes
Allowable costsReduce gainLegal feesKeep receipts
ReliefsLower taxMain residenceEligibility varies
Income bandRate levelBasic vs higherCheck current bands
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FAQs
Does this include private residence relief?

No. It uses a simplified model and does not apply reliefs.

Are CGT rates fixed?

No. CGT rates can change with budgets and depend on income band.

When is CGT due on property?

UK residential CGT is typically due within a set filing window after completion.

Is this tax advice?

No. This is an estimate and should be checked with HMRC guidance or a tax adviser.