How to stop spending more than you earn

If your money runs out before the next payday, the first thing to do is work out what is actually coming in and what is going out. A budget shows you what money you have coming in, what you are spending, whether you can pay essential bills, and what is available to pay debts¹. Making a budget is the first step to dealing with money worries².

The most common reason a budget does not work is a mismatch between how often you are paid and how often you budget. If you are paid weekly or every four weeks but your bills are monthly, the figures do not line up. Converting everything to the same period, usually a month, fixes that. The second most common reason is bills that do not arrive every month: insurance, car tax, school costs, Christmas. Spreading those across the year stops them landing as a shock.

If your outgoings are already higher than your income, you have what debt charities call a deficit budget: the money you need to spend each month on living costs is higher than the money you receive each month from work and benefits³. That is not a personal failing. It is a gap that needs a plan, and there is free help to make one.

A budget shows what comes in and what goes out

A budget is a statement of income and spending. It shows what you have left after essential bills⁹. That is the whole point: not to judge your spending, but to make the gap, or the surplus, visible.

Working out a household budget helps you see how much money is coming into your household, how much is going out, how much you have left, the best way to deal with your debts, affordable offers to creditors, and how to plan your future spending¹⁰. Those are five different uses from one exercise, which is why debt advisers start there.

One rule matters more than any other: do not include figures that are less than you are really spending¹⁰. A budget built on optimistic numbers will fail within weeks. If your outgoings are higher than a typical household's, say so and give the reason. If you think that any of your outgoings might be higher than a typical household, it is important that you tell your creditors the reason for this¹⁰. Creditors see budgets every day and understand that costs vary.

If you are self-employed or a company director, the same principle applies to your business. Work out a business budget by listing all your income and outgoings so you can see how much the business can afford to pay you, your drawings¹⁰. Directors of limited companies can then work out how much the business can pay them, which feeds into the household budget¹⁰. Make sure you use a period of time that reflects the current income of your business¹⁰, and set aside some of the money from when business income is higher to cover bills and debts when it is lower¹⁰.

What a budget can do for you

A budget does more than show a shortfall. It tells you what you can afford to pay towards your debts⁹, and it shows the savings you can make⁹. Once you know how much you have left over to pay your creditors, you will be able to decide your best option for dealing with your debts¹⁰.

That decision usually comes down to three routes. Debt advisers describe the options as better budgeting, a debt solution, or using assets to pay back or write off debt¹¹. A budget is what tells you which of those is realistic. If there is a surplus each month, better budgeting may be enough. If there is not, a formal solution may be the next step.

A budget also protects you from the month that goes wrong. When money is tight, it is very hard to stick to repaying debts when an important bill needs paying or the car or house needs an urgent repair. You can spread out these payments and make budgeting much less stressful if you regularly put a bit of money aside to pay for expenses such as these¹⁰. That is the difference between a budget that survives a bad month and one that collapses at the first unexpected cost.

If you have a surplus rather than a deficit, the question changes. A worked example from a debt charity shows the arithmetic: if you had £300 left over on your budget, you would have £65 spare after paying £235 of minimum payments¹². That £65 is the money you can direct at a goal, whether that is clearing debt faster or building savings.

Converting weekly, fortnightly and yearly amounts to monthly

Most budgets are built monthly, because most bills are monthly. If your income arrives on a different rhythm, convert it. The method is the same whichever source you use.

For weekly income, multiply the weekly amount by 52 (the weeks in a year) and divide that total by 12 (the number of months in a year)⁴. If you are paid weekly, multiply what you make every week, your net income, by 52 and then divide by 12; this gives you the average monthly figure⁵. For four-weekly income, the calculation is different because there are 13 four-weekly periods in a year, not 12: four-weekly payments are multiplied by 13 and divided by 12¹³.

The same arithmetic works in reverse when a rule is expressed weekly. Carer's Allowance earnings limits, for example, are worked out by multiplying monthly earnings by 12 to calculate a yearly income and then dividing by 52 to get a weekly figure¹⁴. Child maintenance calculations use a similar approach: gross annual income is divided by 365 and then multiplied by 7¹⁵. These are official methods, not rules of thumb, which is a useful sign that the conversion is sound.

Some benefits are paid on their own cycle. Personal Independence Payment is usually paid every four weeks¹⁶. If you receive it, treat it as four-weekly income and convert it, rather than assuming it arrives monthly.

Making your income and spending the same period

A budget only works if income and spending are measured over the same period. If you are paid weekly but your rent, energy and phone bills are monthly, a weekly budget will look healthy three weeks out of four and then fail.

The practical fix is to convert everything to one period, usually a month, and then check that the timing works. Money that arrives on the 1st and bills that leave on the 28th need a plan for the weeks in between. Keeping savings separate can make it easier to see growth and reduce the temptation to spend¹⁷, and the same logic applies to money set aside for bills: a separate pot for the bills you know are coming is easier to protect than a single balance you dip into.

If you receive benefits, the timing rules matter. Income such as earnings only counts as savings if it is not spent by the end of the assessment period after the one it is received in¹⁸. That is a rule about how benefit assessments treat money that sits in your account, and it is worth knowing if you are budgeting around Universal Credit.

Where a payment is paused or reduced, the timing can shift again. Hardship payments, for example, should be paused if you start earning above a set amount, and if you earn above that amount for 6 months, the deductions should stop¹⁹. A budget built on the assumption that a deduction continues forever will be wrong in either direction.

How do I budget for bills paid every six months?

Bills that arrive twice a year, or four times a year, are the ones that break budgets. The fix is to convert them to a monthly amount and save that amount each month.

For a quarterly bill, work out the monthly rent or bill and put this amount aside every month so you can pay the bill every three months¹⁰. The same method works for a six-monthly bill: divide the bill by six and set that aside monthly. For annual costs, work out what you spend over the year on these one-off expenses and divide that amount by 12, saving this money each month⁶. Christmas is the classic example, but car insurance, road tax, school uniforms and annual subscriptions all behave the same way.

Where you have a choice, paying monthly can be simpler. You may find it easier to budget by paying your bills every month¹⁰. Many insurers and councils offer a monthly option, though it is worth checking whether the monthly price is higher than the annual one.

A budget is not a one-off exercise. The guidance is to check it every 6 to 12 months⁷, and sooner if your income or bills change. A budget built in January may be wrong by June.

Budgeting as the first step when you are struggling with debt

If you are already behind, the budget comes first, but the order of debts matters more than the total. Deal with any priority debts you have before deciding what to do about your other debts¹⁰. Start with any priority debts you have as these are the ones you need to deal with first¹⁰.

Priority debts are the ones where non-payment has the most serious consequences. Try to pay your energy bills, council tax and rent or mortgage before your other debts⁸. Once you have worked out your income and outgoings and any payments that you need to make to priority creditors, you can decide on the best way to deal with your non-priority debts¹⁰.

If your income has dropped, the advice is to prioritise living expenses until things improve²⁰. That is not avoidance; it is the order that keeps a roof over your head and the lights on while you work out a longer-term plan.

Free debt advice services work through the same steps. One charity describes its process as asking about your income, what you spend your money on each month, what assets you own and your debts, to work out which solution allows becoming debt free in the shortest time possible without adding to debts and protecting assets such as the home²¹. You do not need to have a plan before you ask for help. The budget is the plan's starting point, not its result.

Common reasons for money issues include job loss, cost of living pressures, divorce or separation, and long-term physical or mental illness²³. None of those are solved by willpower, and all of them are things debt advisers see every day.

Where to get free help

Budgeting help and debt advice are free from several sources, and you do not need to be in crisis to use them. National Debtline and Business Debtline publish step-by-step budgeting guides, including a free budget tool²⁴. StepChange offers budgeting guidance and debt advice²⁵. MoneyHelper provides free, impartial guidance on money matters²⁶.

If you are in Scotland, Wales or Northern Ireland, the same national services operate, and there are nation-specific sources of help as well. If you are behind on energy bills, there is separate help available for gas and electricity costs⁸. If you are out of work or your hours have been cut, there is guidance on managing on a reduced income²⁰.

The order to work in is straightforward: build the budget, identify priority debts, pay those first, then decide what to do about the rest. A budget is the tool that makes each of those steps possible, and it costs nothing to make one.