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Self Assessment Calculator
UPDATED 2025/26 + 2026/27
Estimate your total UK income tax and National Insurance for the year. Combine employment income, self-employed profit, dividends and other income — get a full breakdown of what HMRC will charge.
Total salary before tax and NI deductions.
Income minus allowable expenses (not turnover).
Gross dividends received during the tax year.
Taxed as non-savings, non-dividend income.
For guidance only. Based on confirmed 2025/26 / 2026/27 rates (frozen through 2028): PA £12,570 (tapered above £100k), basic-rate band to £50,270, higher-rate band to £125,140. Dividend allowance £500; dividend rates 8.75% / 33.75% / 39.35%. Class 4 NI 6% (£12,570–£50,270) and 2% above. Doesn't account for: student loan repayments, Scottish rates, savings income reliefs (Personal Savings Allowance, Starting Rate), capital gains, pension contributions, gift aid relief, marriage allowance, child benefit charge, payments on account. For your actual return, book a free call.
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