UK Calculators
Four calculators for UK savers, in pounds and for the 2026 to 2027 tax year. Each one shows its formula with your numbers, and every tax figure on these pages links to the GOV.UK page it comes from.
Stocks and Shares ISA Calculator
Regular saving split into what you pay in and what it could grow to — with a check against the £20,000 allowance for 2026/27.
Open calculator →Pension Tax Relief Calculator
Relief at source in England, Wales and NI: what your provider adds, the extra you claim through Self Assessment, and your real cost.
Open calculator →UK Dividend Calculator
Dividend tax for 2026/27 after the £500 allowance, where it falls in the bands, and what an ISA would save over the years.
Open calculator →Fund Fee Calculator
Two fund fees side by side: 0.07% vs 0.22% on £10,000 plus £300 a month for 25 years at an assumed 6% is a £6,281 gap.
Open calculator →Which one answers your question
| If your question is… | Use |
|---|---|
| “What could my monthly ISA saving grow to, and am I within the allowance?” | ISA calculator |
| “How much does a pension contribution really cost me after tax relief?” | Pension tax relief |
| “How much dividend tax will I pay, and what would an ISA save?” | UK dividend calculator |
| “Does a small difference in fund fees matter over the years?” | Fund fee calculator |
Made with the UniMind Pro Markets YouTube channel (youtube.com/@unimindpro) — sources on every number.
See how the channel's own market views held up: the "We Said" scorecard, graded every Friday.
Method & sources
- Tax figures come only from GOV.UK: Individual Savings Accounts, Income Tax rates, pension tax relief and annual allowance, checked 18 October 2026.
- Every figure quoted is produced by the linked calculator's own engine and is reproducible by entering the same inputs.
- Reviewed:
Educational estimates, not personal financial advice. Capital at risk. Tax rules can change and depend on your circumstances.