Personal Finance Calculators

3 calculators Updated for tax year 2026/27 Topic hub All calculators

Budgets, loans, discounts and everyday money. Quick tools for the numbers that come up most.

Percentage Calculator

Three quick percentage tools: percentage of an amount, comparing amounts and percentage change.

See your monthly payment, total interest and a year-by-year balance for a fixed-rate loan.

Estimate Inheritance Tax on an estate, including the £325,000 nil-rate band, the residence nil-rate band and the charity reduced rate.

Guides

New to the topic? Start with a plain-English guide, then put the numbers into the calculators above.

How to create a simple 50/30/20 budget that splits your after-tax income into needs, wants and savings — and actually stick to it.

Credit scores, reports and how to use credit well in the UK.

Snowball vs avalanche — a plan to pay down borrowing faster.

How Inheritance Tax works — the £325,000 nil-rate band, the residence nil-rate band, and the 40% or 36% rate.