Simplify your self assessment

CGT calculator simplifies the self assessment process for personal investors and gains from employment equity grants.

Simple and straightforward. No sign-up.
Step 1

Choose your broker.

Most popular brokers are supported.

Step 2

Upload your broker transaction export.

We'll help you find this.

Step 3

Download your capital gains calculation.

Ready to be uploaded to HRMC.

Simple share pool reporting
CGT Calculator takes care of Section 104 pooling rules, including:
Support for multiple brokers
Each broken has their own export process - we aim to cover the main ones used in the UK:

It's not for everyone!

CGT Calculator aims to help personal investors to save money by filing their own assessments.

It does not aim to cover more complicated tax situations, such as foreign income, keeping the tool simple to use.

Not supported

Get started now!

Choose from the list of common brokers below.

Yours not listed? Choose other, and you can upload a custom.

Morgan Stanley Charles Schwab
Vanguard Other