Budget Calculator
Enter your monthly income and expenses to see your budget at a glance. Find your surplus or deficit instantly.
About This Tool
Calculates your monthly budget by totalling your income and expenses across key categories. Shows total monthly income, total planned outgoings, the surplus or deficit, and total outgoings as a percentage of income.
Anyone wanting to understand and manage their personal finances — first-time budgeters, those paying off debt, savers working towards a goal or anyone who wants to know where their money is going each month.
All calculations happen in your browser. No data is transmitted or stored anywhere.
How to get a useful budget result
Use net income — the money that actually reaches your account — and convert irregular costs into monthly averages. Include annual insurance, repairs, subscriptions and seasonal spending rather than only obvious monthly bills.
Worked example
If net income is £2,500 and total monthly spending is £2,250, the £250 surplus can be assigned to debt repayment, emergency savings or another goal. If spending is higher than income, the category breakdown shows where to review first.
Make the numbers realistic
- Use recent bank statements and bills.
- Separate essential costs from flexible spending.
- Review the budget after a full month and update it when circumstances change.
MoneyHelper recommends using accurate payslips, bank statements and bills when building a budget. See its budget-planning guidance.