2026/27 tax year · verified 7 August 2026

Free UK tax calculators for the 2026/27 tax year

12 calculators covering income tax, National Insurance, stamp duty, mortgages and small-company tax. Every figure is taken from HMRC, Revenue Scotland or the Welsh Revenue Authority, dated, and shown with the bands it came from.

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  • Every rate dated and sourced
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What do you actually take home?

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The three people ask for most

All 12 calculators

Salary and tax calculators

Work out take-home pay, the tax on a company car and what a redundancy package is worth after tax, for the 2026/27 tax year.

Property tax calculators

Stamp duty across England, Scotland and Wales, plus Capital Gains Tax when you sell a property that is not your main home.

Mortgage calculators

See what overpaying saves you and how much you could realistically borrow, with the assumptions shown rather than hidden.

Business tax calculators

Compare trading as a sole trader with running a limited company, and check whether the VAT Flat Rate Scheme is worth joining.

What changed for 2026/27

The Autumn Budget of 26 November 2025 made several changes that take effect this tax year. The ones most likely to affect you:

  • Dividend tax rose 2 points to 10.75% and 35.75%. With 15% employer National Insurance, this changed the answer to “should I go limited?”
  • Thresholds frozen to 2030/31. Income tax and NI bands stay put for three more years, so pay rises pull more people into higher bands.
  • Scottish starter and basic bands rose 7.4%, while the higher, advanced and top thresholds were frozen.
  • Mileage rose to 55p — its first change since 2011 — and electric company car tax rose to 4%.
  • Announced for later: salary sacrifice National Insurance relief capped at £2,000 from April 2029, and property and savings rates up 2 points from April 2027.

See every rate change with its source, or browse all 2026/27 rates.

Guides

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TaxSums provides information, not financial or tax advice. Check anything important with an accountant or with HMRC before acting on it.