Budgeting is hard enough when you're starting from zero. When you're starting from negative, it can feel impossible. Every pound that comes in already has somewhere to go, and "saving" feels like a luxury you can't afford when you've got repayments eating into your income.

But here's the thing. Budgeting when you're in debt isn't optional. It's essential. Without a plan, debt has a way of growing quietly in the background until one day it's all you can think about. A budget doesn't make the debt disappear, but it gives you a clear path through it.

First things first: stop ignoring it

This is the hardest step and it's also the most important one. If you've got unopened letters, unread emails from creditors, or a vague sense of dread every time your phone buzzes, you're in avoidance mode. No judgement. It's incredibly common. Debt feels shameful and scary and most people's instinct is to look away.

But debt doesn't improve when you ignore it. It gets worse. Interest accumulates, missed payments stack up, and creditors escalate. The sooner you face the actual numbers, the sooner you can start dealing with them.

Sit down, make a list of everything you owe, and write down:

  • Who you owe money to
  • How much you owe in total
  • What the interest rate is
  • What the minimum monthly payment is
  • Whether you're up to date on payments

It might feel awful to see it all written down. But it also means you can stop guessing and start planning.

Priority debts vs non priority debts

Not all debt is equal. Some debts carry more serious consequences if you don't pay them. These are called priority debts, and they should always come first in your budget:

Priority debts (serious consequences for non payment):

  • Rent or mortgage. You could lose your home.
  • Council tax. The council can send bailiffs and, in extreme cases, you can face imprisonment.
  • Energy bills. Your supply could be cut off or a prepayment meter installed.
  • TV Licence. Still carries a fine if you need one and don't pay.
  • Child maintenance. Court action is possible.
  • Income tax and VAT. HMRC don't mess about.

Non priority debts (still important, but less severe immediate consequences):

  • Credit cards
  • Personal loans
  • Overdrafts
  • Store cards
  • Catalogue debts
  • Money owed to friends or family

Always, always cover your priority debts first. Then work on the rest.

Building a budget around your repayments

Here's a simple framework that works:

  1. Calculate your total monthly income. Salary, benefits, any side income. Everything that comes in.
  2. List your essential costs. Rent, council tax, energy, water, food, transport to work, insurance. The stuff you literally cannot skip.
  3. List your minimum debt repayments. Every single one. This is non negotiable spending.
  4. See what's left. Income minus essentials minus minimum repayments equals your actual disposable income.
  5. Decide how to split what's left. Some goes to additional debt repayment (above the minimums), some goes to basic living costs you haven't covered yet.

If the numbers don't work, meaning there isn't enough to cover everything, that's not a failure on your part. It means you need help, and there's good free help available (more on that below).

If you want to get a clear picture of your income and spending, Steward's free money quiz breaks it all down in about five minutes. It's a good starting point before you start reshuffling.

Avalanche vs snowball: picking a repayment strategy

Once you've got your minimum payments covered and you have extra money to throw at debt, you need to decide which debt to focus on first. There are two main approaches:

The avalanche method (mathematically optimal):

Pay minimums on everything, then put all your extra money towards the debt with the highest interest rate. Once that's paid off, move to the next highest, and so on.

This saves you the most money overall because you're eliminating the most expensive debt first. If you have a credit card at 22% and a personal loan at 6%, the card costs you far more per pound owed.

The snowball method (psychologically powerful):

Pay minimums on everything, then put all your extra money towards the debt with the smallest balance. Once that's paid off, take what you were paying on it and add it to the next smallest.

This gives you quick wins. Clearing a debt completely, even a small one, feels amazing and builds momentum. Research shows people who use the snowball method are more likely to stick with their repayment plan.

Which should you pick? If your interest rates are similar, go snowball. The motivation matters more than the marginal savings. If one debt has a significantly higher interest rate than the others, go avalanche. Either way, the important thing is that you're paying more than the minimums somewhere. That's what moves the needle.

Free debt advice that's actually good

If your debt feels unmanageable, please talk to someone. There are several organisations in the UK that offer completely free, confidential, professional debt advice:

  • StepChange. The UK's leading debt charity. They'll go through everything with you, create a plan, and can negotiate with your creditors on your behalf. Online tool or phone line. Completely free.
  • Citizens Advice. Free advice on debt and everything else. They can help you understand your options and your rights. Available online, by phone, or in person.
  • National Debtline. Free phone advice and online tools. Run by the Money Advice Trust charity.
  • MoneyHelper. Government backed service (formerly the Money and Pensions Service). Impartial advice and guides.

Do not pay for debt advice. Ever. Any company charging you for debt management is taking money you should be using to pay off your debt. The free services above are just as good and often better.

The Breathing Space scheme

This is something not enough people know about. Breathing Space (officially called the Debt Respite Scheme) gives you legal protection from your creditors for 60 days. During that time:

  • Most interest and charges on your debts are frozen
  • Creditors cannot contact you to demand payment
  • No enforcement action can be taken against you

It's designed to give you time to get proper debt advice and find a solution without the constant pressure of phone calls, letters, and threats. You can access it through a debt advice provider like StepChange or Citizens Advice. You can't apply directly.

There's also a "mental health crisis" version that lasts longer and has additional protections. If your debt situation is affecting your mental health (which it almost certainly is if you're struggling), ask about this specifically.

Things to stop doing

When you're in debt, certain habits make things worse. Check yourself on these:

  • Stop borrowing to repay debt. Taking out a new credit card to pay off an old one just shuffles the problem around (unless you're doing a genuine 0% balance transfer with a plan to clear it. That's different).
  • Stop paying for things you don't use. Subscriptions, memberships, insurance policies you forgot about. Cancel everything that isn't essential and redirect that money to repayments.
  • Stop comparing yourself to others. Your mate who just bought a new car might also be in debt. You don't know anyone's full financial picture. Focus on yours.
  • Stop waiting for a "better time" to deal with it. There is no better time. The best time to start was yesterday. The second best time is today.

What about saving while in debt?

This is a debate that divides personal finance people. Some say every spare penny should go to debt. Others say you need at least a small emergency buffer.

Here's the practical answer: try to build a mini emergency fund of £500 to £1,000 before going all in on debt repayment. Why? Because without any savings, the next unexpected expense will go straight onto a credit card. And then you're back where you started.

Once you've got that small buffer, focus everything on debt. Once the debt is gone, build the emergency fund properly.

The bottom line

Budgeting with debt is harder than budgeting without it. That's just a fact. But it's also the single most important thing you can do to get out of it. A budget gives you control. It shows you exactly where you stand, what you can afford, and how long it'll take to get clear.

You got into debt. Lots of people do. What matters now is that you've got a plan to get out of it. Start with the numbers, pick a strategy, get free help if you need it, and take it one month at a time. You'll get there.