A budget is your income minus your spending, planned before the month starts and checked after it ends. Start with one month of real bank transactions, not estimates. Sort them into about ten categories and you will know your essentials, your flexible spending and your surplus (or deficit) inside twenty minutes. Then decide three things: what to cut, what to save, and when you will look again.
Use take-home pay, after tax, National Insurance, pension and student loan. Add benefits and any regular extra income. If you are paid weekly or four-weekly, convert to a monthly average (weekly times 52, divided by 12) and remember some months will have an extra payday.
Guessing is where budgets die. Download last month's transactions from your bank as a CSV. Every UK bank can do it and this site has a guide for each. Import the file into The Income Tracker and every line is on screen with its date and amount. Only got a PDF? Copy the rows and paste them in.
Housing, Bills, Groceries, Transport, Debt, Subscriptions, Eating out, Shopping, Health, Savings. Drag each transaction into one. Thirty categories look thorough and get abandoned by week three; ten is enough to see where the money goes.
| Number | How to get it | What it tells you |
|---|---|---|
| Essentials | Housing + Bills + Groceries + Transport + minimum debt payments | What the month costs before any choices |
| Flexible spending | Everything else except savings | Where cuts are possible |
| Surplus | Income minus everything | What you can save, or the size of the problem |
None is better in general. The best method is the one you are still doing in March.
| Method | In one line | Suits |
|---|---|---|
| 50/30/20 | Half on needs, 30% on wants, 20% to savings and debt | A simple target with room to move |
| Zero-based | Every pound gets a job before the month starts | People who like control |
| Pay yourself first | Move savings on payday, spend what remains | People who hate tracking |
On the first weekend of the month, import the new statement, categorise what is new (the app remembers the rest), and compare the three numbers with last month. Adjust one thing. That habit, repeated, is the entire skill.
First, pay the priority bills: rent or mortgage, council tax, energy, and anything with a court or licence behind it. Then cut flexible spending and look at subscriptions. If it still does not balance, talk to a free advice service such as StepChange, Citizens Advice or National Debtline before it becomes arrears. A negative number on a budget is information, not a verdict.
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