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"Finally a calculator that handles the 60% tax trap correctly. Saved me a fortune by showing exactly how much to put into my pension."
"Used the buy-to-let calculator to understand Section 24. So much clearer than anything my accountant sent me. Genuinely impressed."
"The CIS refund calculator was spot on — matched my accountant's figure exactly. Bookmarked and shared with my whole crew."
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Track income and expenses, scan receipts with AI, and see your real profit — all in one free UK tax tracker built for self-employed workers.
PayToolkit started because I couldn't find a single place to get accurate, free UK tax answers without being upsold, asked for an email, or shown results that didn't match HMRC methodology. So I built it myself.
Every calculator uses the same HMRC formulas your accountant uses. No ads. No tracking. No paywalls. Just accurate numbers — for freelancers, employees, landlords, and everyone in between.
PayToolkit is not a firm of accountants and this is not financial advice. For complex situations, always confirm with HMRC or a qualified adviser. Read more about how PayToolkit works →