Support Us
This calculator is completely free and open source. It is built and maintained by an individual developer who believes tax tools should be accessible to everyone.
Ways to Support
Star the Repository
Show your appreciation by starring the project on GitHub. It helps others discover the tool.
Star on GitHub→Share with Friends
Know someone who trades UK shares? Tell them about this calculator. Word of mouth is the best marketing.
Report Bugs
Found something that doesn't look right? Open a GitHub issue and help improve the calculator for everyone.
Open an Issue→Sponsor on GitHub
Your sponsorship helps keep the code open source, pays for hosting, and keeps the site free without ads.
Become a Sponsor→Open Source
The calculation engine is fully open source. You can inspect exactly how your gains are calculated, verify the matching rules, and audit the code yourself.
Sponsor on GitHub
Your donations help me keep the calculator code open source, pay for hosting the website, and keep it free for everyone — without ads.
Sponsor on GitHubThank you for using the calculator and for any support you can offer. Every star, share, and contribution makes a difference.