Budget Calculator

The 50/30/20 rule — a starting framework, in your actual numbers.

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Uses the classic 50% needs / 30% wants / 20% savings split — adjust the numbers below to fit your own situation once you see the starting point.
Monthly take-home pay
£0
Needs (50%)£0
Wants (30%)£0
Savings & extra debt payoff (20%)£0

How does the 50/30/20 rule work?

The 50/30/20 rule splits take-home pay into three buckets: 50% for needs (rent, bills, groceries, minimum debt payments, transport to work — costs you can't skip without real consequences), 30% for wants (everything discretionary, even things that feel essential day to day), and 20% for savings or extra debt repayment beyond the minimums. It's a starting framework rather than a strict rule — in high cost-of-living areas, needs can easily exceed 50%, and the split is worth adjusting to your actual circumstances rather than forcing the exact percentages.

Frequently asked questions

What is the 50/30/20 budget rule?

A simple guideline splitting take-home pay into 50% needs (rent, bills, groceries), 30% wants (eating out, subscriptions, hobbies), and 20% savings or debt repayment beyond minimums.

Is 50/30/20 realistic in a high cost-of-living area?

Not always — in expensive cities, needs can easily exceed 50% of income, especially with high rent. It's a starting framework to adjust from, not a rule that fits every situation or location.

What counts as a "need" versus a "want"?

Needs are costs you can't avoid without real consequences — rent, utilities, groceries, minimum debt payments, transport to work. Wants are everything discretionary — streaming subscriptions, dining out, hobbies — even if they feel essential day to day.

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