UK tax calculators
Eighteen interactive calculators covering every common UK tax scenario. Real 2025/26 rates, no signup, no email collection. Just type and see.
Pick a tool
Self-Employed Tax
Sole trader · income tax + Class 4 NI
Salary After Tax
PAYE take-home with pension/student loan
UK Income Tax
Quick income-tax-only estimate
Capital Gains Tax
Property, shares, crypto · 18%/24%
National Insurance
Class 1 employee + Class 4 self-employed
Pension Tax Relief
Basic, higher, additional rate relief
Child Benefit + HICBC
Annual benefit and high-income clawback
Late Penalty
How much late filing/payment will cost
Rental Income
Landlord tax with Section 24 credit
CIS Rebate
Construction sub-contractor refund estimate
eBay / Online Sales
Trading allowance, sole trader treatment
Stamp Duty
Property purchase tax, England/NI rates
Uber / Rideshare
Mileage, expenses, tax + NI for drivers
Tax Code Checker
Decode your tax code in seconds
Mileage Relief
Claim tax back on under-reimbursed miles
Dividend Tax
Director salary/dividend split optimisation
Crypto Tax
CGT on disposals + income on staking
Corporation Tax
CT600 with marginal relief
Stop dreading tax. Start ignoring it.
Get a fixed-fee quote in 60 seconds. No signup, no card, no sales call. We'll just tell you what it'll cost and how fast we can file it.