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UK Self Assessment Tax Calculator

Capital Gains Tax on a UK home

Take-home pay
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Track your tax
How it works

Test site This is a test site with dummy HMRC services. Do not enter real personal information. How it works.

The sale

When did the sale complete?

For example, 27 9 2026. The date you handed over the keys, not the date you agreed the sale.

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Year

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UK Self Assessment Tax Calculator is not part of GOV.UK or HMRC. It uses the tax rates and rules published on GOV.UK and in legislation.

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