Free static JSON and CSV endpoints with UK tax figures (income tax, National Insurance, student loans, dividends, VAT, mileage and deadlines). No sign-up, no API key, and CORS is enabled so you can call it from a browser.
Build quick tax tools, payroll spreadsheets, or blog posts that show correct UK rates using ready-made JSON or CSV files. You can pull full tax years or single values directly into JavaScript, Google Sheets or Excel without signing up. Everything is based on GOV.UK figures and updated periodically, so your app stays accurate. Note: some items (for example Scottish bands) are not published here yet.
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