TaxSimple

What it does

Free UK self-assessment tax calculator for 2025/26. Built for self-employed workers, freelancers, and landlords. Calculates income tax, National Insurance (Class 2 & 4), all 16 expense categories, mileage, home office, rental income, dividends, and payments on account. No signup. No email. Instant results. HMRC-verified rates. Unlike GoSimpleTax (£30+/year), TaxSimple is completely free. Optional PDF report with HMRC box references for £12.99.

Free UK tax calculator for self-employed, freelancers & landlords. HMRC 2025/26 & 2026/27 rates, NI, expenses & take-home pay. No signup needed.

Calculate your self-assessment tax bill in under 5 minutes. Accurate to the penny. HMRC-verified rates — for self-employed, freelancers, and landlords. Full tax calculation with band breakdown. No signup needed. Only pay if you want the PDF report. All tax bands, NI thresholds, and allowances verified against current HMRC published rates. All calculations run in your browser. No data sent to any server until you choose to pay. Whether you're freelancing, renting out property, or driving for Uber. Claim every expense you're entitled to. Know exactly how much to save each month. Calculate rental profit correctly after mortgage interest, repairs, and insurance. Uber, Etsy, Deliveroo — find out…from taxsimple.me

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