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Key takeaways
- Start with real figures from your bank statements, not guesses
- Include irregular and yearly costs by dividing them into monthly amounts
- Sort spending into needs, wants and savings, then set priorities
- Pay yourself first by automating savings after payday
- Review regularly and adjust: a good budget changes with your life
A budget is not a punishment or a list of things you cannot do. It is a plan that tells your money where to go, so you decide what happens to it instead of wondering at the end of the month where it went. Whether you want to save for a deposit, stop running out of money before payday or get a grip on debt, a budget is the starting point. This guide shows how to make one that you can actually stick to.
Why make a budget?
Most people have a rough idea of what they earn, but far fewer know what they spend. A budget closes that gap. It shows whether you are living within your means, highlights spending you had not noticed, and lets you set goals with real numbers attached. It also gives you a way to deal with surprises, because you can see where to find the money instead of reaching for a credit card.
Step 1: Work out your monthly income
Start with take-home pay, which is what lands in your bank account after tax, National Insurance, pension contributions and student loan repayments. Add any other regular income: benefits, child maintenance, pensions, rent from a lodger or side earnings. If your income changes from month to month, take the lowest recent figure or an average of the last six months, so that you do not plan around money you may not receive.
Step 2: Track what you actually spend
Look at the last three months of bank and card statements. Group each payment into categories such as housing, bills, food, transport, debt payments, entertainment and savings. Many banking apps do this automatically; otherwise a spreadsheet or our free monthly budget planner will do the job.
Do not forget irregular costs. Car tax and MOT, insurance renewals, birthdays, Christmas, school uniforms and holidays do not hit every month, but they do hit. Add up the yearly total and divide by 12 to get a monthly figure to set aside.
Step 3: Separate needs, wants and savings
Once you can see where the money goes, sort spending into three groups:
- Needs: rent or mortgage, utilities, basic food, transport to work, insurance and minimum debt payments
- Wants: takeaways, subscriptions, entertainment, hobbies, clothes beyond the basics and holidays
- Savings and extra debt payments: emergency fund, pension top-ups, other goals and anything above minimum repayments
This split makes it easier to see where there is room to adjust. If you are looking for a rule of thumb, see our guide to the 50/30/20 budget rule.
Step 4: Set goals and priorities
A budget works best when it has a purpose. Decide what you are trying to achieve and in what order. A common sequence is:
- Cover all essentials and priority bills
- Build a small starter emergency fund
- Pay off expensive debt such as credit cards and overdrafts
- Build a larger emergency fund of three to six months of essentials
- Save for medium-term goals such as a house deposit, and for retirement
Step 5: Make the numbers fit
Compare your income with your spending. If there is money left over, give it a job so it does not disappear. If there is a shortfall, look for savings: start with the biggest costs, since small cuts to large bills usually make more difference than many small savings. Check broadband, energy, insurance, mobile and subscriptions first. Our guide to cutting household bills has more ideas.
Step 6: Choose a method that suits you
There is no single right way to budget. Pick the one you will use.
- Spreadsheet or app: flexible and detailed, good if you like numbers
- Pots or envelopes: separate accounts or cash for categories such as food and fun, helpful if you overspend
- Zero-based: every pound is given a job, so income minus planned spending equals zero
- Percentage rule: a simple split such as 50/30/20 for people who dislike detail
Step 7: Review and adjust
A budget is a living document. Check it weekly for a few minutes at first, and do a bigger review each month. If you overspent in a category, ask why rather than blaming yourself: was the budget unrealistic, or was it a one-off? Adjust the plan and carry on. Over a few months, you will find a rhythm that works.
Budgeting when money is tight
If your essential costs take most of your income, a budget can feel discouraging, but it is still valuable. It can show whether you are claiming everything you are entitled to, and whether you should talk to creditors, your landlord or a free adviser. MoneyHelper, Citizens Advice and StepChange all offer free help, and if debts are a problem, see our guide to making a debt budget.
Keeping a budget going
Making the budget is the easy part. Sticking to it for months is where most people struggle, so build in habits that make it routine.
- Pick a regular check-in. Ten minutes on the same day each week is enough to compare spending with your plan and spot problems early.
- Pay yourself first. Set up a standing order for savings on payday so that the money moves before you can spend it.
- Give yourself a little slack. A budget with no flexibility for treats or surprises usually collapses within weeks. A small amount of "fun money" makes the rest easier to follow.
- Review after three months. Your first budget will contain mistakes. Adjust categories that were consistently too high or too low rather than abandoning the plan.
- Update when life changes. A new job, a new baby, a move or a rise in energy prices all justify a fresh look.
Handling irregular and annual costs
Many budgets fail because of costs that do not arrive monthly: car tax and MOT, home insurance, birthdays, Christmas, school uniforms or boiler servicing. List every bill that is paid once or twice a year, add them up, and divide by 12. Then move that amount into a separate savings pot each month so the money is waiting when the bill arrives. This removes the shock of big bills and keeps you out of overdrafts and credit cards.
Budgeting on a variable income
If your income changes month to month, base your budget on the lowest amount you reasonably expect to earn. In good months, put the extra into a buffer account, and pay yourself a steady "salary" from that account. Self-employed people should also set aside a share of every payment for tax, so that the bill to HMRC is never a surprise.
Frequently asked questions
How much of my income should I save?
What is the best way to track spending?
What should I do if my income changes each month?
How often should I review my budget?
Sources and further reading
- Budget planner — MoneyHelper
- Benefits calculators — GOV.UK
- Debt and money — Citizens Advice
This page provides general information only. It is not personalised financial, legal or tax advice, and rules and figures can change. Your situation is unique — please check official sources such as GOV.UK and MoneyHelper, and speak to a qualified, FCA-authorised adviser before making important decisions about your money.
Written by
MoneyBrink Editorial Team — Editorial team
The MoneyBrink Editorial Team researches, writes and reviews every guide on this site. We work from official UK sources such as GOV.UK, the Financial Conduct Authority, MoneyHelper and the Money and Pensions Service, explain things in plain English, and update articles when the rules change. We do not sell financial products and we do not give personal advice.
Read how we research and check our guides in our editorial policy.
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