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Parent Money Maths

What are you weighing up?

Seven free calculators for the money decisions that come with a family. Each shows the headline first, with the full working one tap away.

Starts with a worked scenario

Every calculator opens with a common situation filled in. Change any number and the answer updates as you type.

2026/27 rules

Tax, National Insurance, childcare support, Child Benefit, pensions and student loans, for England, Wales and Northern Ireland.

Private by design

No sign-up and nothing stored. Your numbers are worked out in your browser and never sent anywhere.