Rates, sources and review dates
Every figure used by these calculators is listed below with a link to the government page it came from and the date it was last checked. The list is generated from the same data the calculators run on, so it cannot drift out of step with the numbers on the tool pages. UK tax rates change at least once a year, usually from 6 April, and sometimes mid-year at a Budget — if you are reading this well after the review date shown, check the source links before relying on a figure.
2026/27 UK tax year (6 April 2026 to 5 April 2027).
Last checked against the sources below on 31 August 2026.
- HMRC — Tax-free allowances on property and trading income
Property allowance for income from land and property
- HMRC — Restricting finance cost relief for individual landlords
How the finance cost restriction for landlords is worked out
This page sets out how a calculation works rather than supplying a figure, so it does not appear in the table below.
- HMRC — Pension schemes rates
Pension annual allowance, taper limits and Money Purchase Annual Allowance
- HMRC — Work out your tapered annual allowance
How the tapered annual allowance is worked out
- HMRC — National Insurance rates and allowances
Class 2 and Class 4 rates and thresholds, with year columns
- GOV.UK — Self-employed National Insurance rates
How Class 2 and Class 4 work for the self-employed
- GOV.UK — VAT rates
VAT standard, reduced and zero rates
- GOV.UK — Register for VAT
VAT registration threshold and the two registration tests
- HMRC — Income Tax rates and allowances
Income Tax rates, bands and Personal Allowance
- HMRC — Rates and thresholds for employers 2026 to 2027
Class 1 National Insurance thresholds and rates (employee and employer)
- GOV.UK — Repaying your student loan: what you pay
Student loan and postgraduate loan repayment thresholds
- GOV.UK — Tax on dividends
Dividend allowance and dividend tax rates
- GOV.UK — Capital Gains Tax rates and allowances
Capital Gains Tax annual exempt amount and rates
- GOV.UK — Stamp Duty Land Tax: residential property rates
Stamp Duty Land Tax bands, first-time buyer relief and surcharges
- GOV.UK — Corporation Tax rates and reliefs
Corporation Tax rates and Marginal Relief
- GOV.UK — Understand your Self Assessment tax bill: payments on account
Self Assessment payments on account rules and due dates
- GOV.UK — Claim Employment Allowance
Employment Allowance amount and who can claim it
- GOV.UK — Pay Apprenticeship Levy
Apprenticeship Levy rate and the £15,000 levy allowance
- GOV.UK — Rates of Stamp Duty Land Tax for non-UK residents
Stamp Duty Land Tax surcharge for non-UK residents
- Corporation Tax Act 2010, section 19
Corporation Tax Marginal Relief — the standard fraction in primary legislation
- GOV.UK — Higher rates of SDLT for additional residential properties
The £40,000 floor below which the additional-property SDLT surcharge does not apply
- GOV.UK — National Minimum Wage and National Living Wage rates
National Living Wage hourly rate, used for the salary-sacrifice warning
Every figure, one by one
- 1
First-party source only
Every figure comes from gov.uk or legislation.gov.uk. Accountancy blogs and summaries are used to know where to look, never as the source.
- 2
Recorded with its wording
The number is stored together with the sentence it came from, so it can be re-checked in seconds rather than re-researched.
- 3
Re-read automatically
A separate pass re-reads the government pages and flags any figure whose wording has stopped matching.
- 4
Then a person checks the column
A machine cannot tell one year’s column from another — gov.uk shows four years side by side. Advertising stays switched off until every figure has passed this step.
Just used one of the calculators? Filter down to the figures that produced your answer.
Income tax rates and allowances current and past
gov.uk · 4 figuresPersonal Allowance
The slice of income you can earn before Income Tax starts.
Stored as12570“Allowances 2026 to 2027 2025 to 2026 2024 to 2025 2023 to 2024 Personal Allowance £12,570”
gov.uk/government/publications/rates-and-allowances-income-tax/income-tax-rates-and-allowances-current-and-past How we know it is this year’s figure
Personal Allowances — column header "2026 to 2027": £12,570
Corroborated automaticallyAn automated re-read of the government page found both this figure and the quoted wording. That proves the number is on the page — not yet that it sits in this year’s column.
- Last checked
- 27 August 2026
Rates and thresholds for employers 2026 to 2027
gov.uk · 3 figuresClaim employment allowance
gov.uk · 1 figurePay apprenticeship levy
gov.uk · 2 figuresWhat you pay
gov.uk · 5 figuresTax on dividends
gov.uk · 1 figureRates
gov.uk · 1 figureResidential property rates
gov.uk · 4 figuresStamp duty land tax buying an additional residential property
gov.uk · 1 figureRates of stamp duty land tax for non uk residents
gov.uk · 1 figureCorporation tax rates
gov.uk · 4 figures19
legislation.gov.uk · 1 figureTax free allowances on property and trading income
gov.uk · 1 figurePension schemes rates
gov.uk · 4 figuresPension schemes work out your tapered annual allowance
gov.uk · 2 figuresRates and allowances national insurance contributions
gov.uk · 1 figureSelf employed national insurance rates
gov.uk · 5 figuresVat rates
gov.uk · 3 figuresRegister for vat
gov.uk · 1 figurePayments on account
gov.uk · 1 figureNational minimum wage rates
gov.uk · 1 figurePersonal Allowance
The slice of income you can earn before Income Tax starts.
12570“Allowances 2026 to 2027 2025 to 2026 2024 to 2025 2023 to 2024 Personal Allowance £12,570”
How we know it is this year’s figure
Personal Allowances — column header "2026 to 2027": £12,570
An automated re-read of the government page found both this figure and the quoted wording. That proves the number is on the page — not yet that it sits in this year’s column.
- Last checked
- 27 August 2026
What is not covered
These calculators cover England, Wales and Northern Ireland. Scotland sets its own Income Tax bands, and Scotland and Wales each charge their own property transaction tax instead of Stamp Duty. Also outside scope: Business Asset Disposal Relief, the starting rate for savings, Marriage Allowance, the VAT flat rate scheme, and any calculation involving associated companies or an accounting period shorter than twelve months.
General information about UK tax, not advice. Figures are indicative and your circumstances may change the answer. Check anything important with HMRC or a qualified adviser before acting on it.