Last updated July 2026
CGT Foresight is a software tool that helps you organise your share trades and calculate figures for the Capital Gains Tax pages of a UK Self Assessment return. It does not provide tax, legal, accountancy or financial advice, and using it does not create any adviser–client relationship.
The figures produced depend entirely on the data you import or enter, and on assumptions about HMRC rules that may not fit every situation (for example corporate actions, accumulation units, non-UK residency, or unusual instruments). You remain responsible for reviewing every figure and for the accuracy and completeness of anything you submit to HMRC.
We strongly recommend you review the calculation breakdowns, keep your own records, and consult a qualified accountant or tax adviser if you are unsure. CGT Foresight and its operators accept no liability for any loss arising from reliance on the tool's output.
While we work hard to apply HMRC's share-matching rules correctly, the software is provided "as is" without warranties of any kind. Tax rules change, and there may be errors. If you spot something that looks wrong, please get in touch.