UK Financial Calculators 2026

Free, accurate tools for mortgage, stamp duty, VAT, ISA, council tax, and more – updated for 2026.
Plan your finances with confidence – updated for 2026

Mortgage Affordability

Monthly payments, interest, borrowing power

Calculate

Stamp Duty

Calculate SDLT by property price

Calculate

VAT Calculator

Add, remove, or calculate VAT

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ISA Calculator

Cash ISA, S&S ISA, returns

Calculate

Council Tax

Bands, discounts, and appeals

Calculate

Income Tax

PAYE, self-assessment, NI contributions

Calculate

Pension Calculator

Retirement income, tax relief, contributions

Calculate

Loan Calculator

Personal loans, car loans, APR

Calculate

Budget Planner

Track income & expenses in £

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Refinance Calculator

Compare mortgage deals, savings

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Updated for 2026 tax bands HMRC‑compliant calculators 100% Free • No registration

Why Britons trust our tools

Updated for 2026

Latest tax rates, stamp duty, and allowances.

Accurate calculations

Based on HMRC and Bank of England data.

Works on all devices

Plan your finances at home or on the go.