How to use ChatGPT to make a household budget (UK, free)
Prices keep going up, and it's hard to see where the money goes each month. A free AI chatbot can help you turn a pile of bills and rough guesses into a clear monthly budget in about 15 minutes – what comes in, what goes out, and what's left. This guide gives you copy-and-paste prompts, shows you what to keep private, and points you to free UK help if money is tight.
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What AI can (and can't) do for your budget
- It can sort your income and spending into a simple monthly budget, add things up, spread yearly costs (like car insurance or Christmas) into monthly amounts, suggest places to cut back, explain money jargon, and turn your budget into a spreadsheet.
- It can't see your bank account, know today's best energy or broadband deals, or tell you what benefits you'll get. It can also make mistakes with sums – so always check the totals.
- It isn't a financial adviser. Use it to organise your numbers, not to decide about borrowing, debt solutions or investments.
Think of it as a patient friend with a calculator: AI helps you organise, you check and decide.
Which free chatbot to use
Any of the big free chatbots will do. Pick the one you already use:
- ChatGPT – a good all-rounder. New to it? See our beginner's guide to ChatGPT.
- Microsoft Copilot – free, and handy if you use Excel.
- Google Gemini – free with a Google account, and handy if you use Google Sheets.
- Claude – free tier, good at tidy tables and lists.
You don't need to pay for an “AI budgeting app”. If you'd like a tool that is built for budgeting, the free MoneyHelper Budget planner (moneyhelper.org.uk) is a good place to start. Wondering whether a paid chatbot is ever worth it? See our free vs paid guide.
Keep your bank details out of the chatbot
A budget only needs rough amounts. Never type or upload:
- Online banking logins, passwords, PINs or one-time passcodes.
- Card numbers, account numbers or sort codes.
- Full bank statements or screenshots of your banking app – they show your name, address, account details and every payment you've made.
- Your National Insurance number, or other people's financial details.
Tip: look through your statement yourself and write down rounded totals by category – “food about £420, petrol about £160”. Type those into the chatbot instead.
- Don't connect your bank to apps you don't know. Many UK banking apps already have free spending and budgeting tools – check yours first.
- Watch out for scams. No real chatbot, bank or debt charity will ask for your banking password. Be wary of social media ads promising AI tools that “fix your debts” or “make money fast”. More in our AI safety guide.
Before you start: gather your numbers
Spend 10 minutes with your banking app, payslips and bills. Write down monthly amounts (rounded is fine):
- Money in – take-home pay (after tax and National Insurance), benefits such as Universal Credit or Child Benefit, pensions, and any other regular income.
- Home – rent or mortgage, council tax, gas and electricity, water, home insurance.
- Bills and subscriptions – mobile, broadband, TV licence, streaming, apps, gym.
- Everyday spending – food shopping, toiletries, school costs, pets.
- Getting about – fuel, bus or train fares, car insurance, road tax, MOT and servicing.
- Childcare, and any money you owe – credit cards, loans, catalogues, Buy Now Pay Later.
- Once-a-year costs – birthdays, Christmas, holidays, school uniforms, car repairs. Divide each by 12.
If your income changes from month to month, MoneyHelper suggests budgeting for your lowest month – then any extra in a good month can go into savings.
The main prompt: your monthly household budget
Copy this, fill in the [brackets] and send:
“Help me make a simple monthly household budget. I live in the UK with [my partner and 2 children aged 7 and 11]. Our take-home income each month is about £[amount] from [wages / Universal Credit / Child Benefit / pension]. Here are our monthly costs, rounded: [rent £X, council tax £X, gas and electricity £X, water £X, food £X, mobiles £X, broadband £X, fuel £X, car insurance £X a year, childcare £X, credit card payment £X, subscriptions: list them]. Please put everything in a table with these groups: home, bills, everyday spending, transport, children, debts, and once-a-year costs turned into a monthly amount. Show the total coming in, the total going out, and what's left over or short each month. Show your working so I can check the sums. Use £ and plain British English. Don't give me financial advice or recommend any products – just help me see where the money goes. Before you start, ask me about anything I've missed.”
Then keep going: “Which 3 groups are the biggest?”, “Add a line for Christmas, about £400 a year” or “What would change if our energy bill went up by £20 a month?”
More copy-and-paste prompts
- Find places to cut back: “Here's my monthly budget: [paste the table]. Suggest 10 realistic ways a UK household could cut these costs without big sacrifices – for example checking for a cheaper broadband deal at the end of a contract, cancelling unused subscriptions or cheaper food swaps. Tell me what I'd need to check before I switch anything, and don't make up prices.”
- Subscription check: “Here's a list of the regular payments I pay each month: [list the names and amounts – no card or account numbers]. Group them into ‘needed’, ‘nice to have’ and ‘could cancel’, and add up how much I'd save a year by cancelling the last group.”
- Save up for the big yearly costs: “I have these costs each year: [car insurance £X, MOT and service £X, Christmas £X, birthdays £X, school uniforms £X]. How much should I put aside each month to cover them, and what's a simple way to keep that money separate?”
- Up-and-down income: “My income changes each month: over the last 6 months it was [£X, £X, £X…]. Help me build a budget based on my lowest month, and a plan for what to do with any extra in a better month.”
- A weekly spending limit: “After my bills, I have £[amount] a month left for food, petrol and everything else. Turn that into a simple weekly spending limit, and suggest an easy way to track it on my phone.”
- Christmas or birthday budget: “I want to spend no more than £[amount] on Christmas this year for [number] people. Help me split it into presents, food and extras, and suggest cheaper ideas that still feel special.” For gift ideas, Christmas dinner and a December checklist, see our guide to planning Christmas on a budget with AI.
- Explain the jargon: “Explain in plain English what these mean on my bills: standing charge, direct debit review, APR, minimum payment. Keep it short.”
Turn it into a spreadsheet (free)
A spreadsheet makes it easy to update your budget each month. Google Sheets is free with a Google account, and Microsoft offers a free web version of Excel with a Microsoft account. Ask the chatbot:
“Turn my budget into a simple spreadsheet layout for [Google Sheets / Excel]. Column A: the item, column B: the monthly amount, column C: the group. Add a total for money in, a total for money out, and a ‘left over’ cell, and give me the exact formulas to type in. Explain each step as if I've never used a spreadsheet.”
Then type in your real numbers yourself – in the spreadsheet, not the chatbot. If a formula doesn't work, paste just the formula (not your numbers) back into the chatbot and ask what's wrong.
Check the numbers before you rely on them
- Check the sums. Chatbots can add up wrongly or miss a line. Check the totals with a calculator, or let the spreadsheet do the adding.
- Don't trust prices or “typical savings”. AI doesn't know today's tariffs, deals or your contract terms. Check with your provider, or a well-known comparison site, before switching anything.
- Watch for missing costs. Ask yourself: have I included council tax, the TV licence, school trips, presents and car repairs?
- Not advice. If the chatbot suggests a loan, a credit card, a debt solution or an investment, ignore it and talk to a free, regulated adviser instead (see below).
- Review it monthly. Bills change. Ten minutes once a month keeps the budget useful.
Cost-of-living help you might be missing
A budget often shows that the problem isn't spending too much – it's not having enough coming in. Check you're getting everything you're entitled to:
- Benefits calculators: GOV.UK lists free, anonymous benefits calculators from entitledto, Turn2us and Policy in Practice (gov.uk/benefits-calculators). They can check things like Universal Credit, Pension Credit and Council Tax Reduction.
- Cheaper broadband and phone: many providers offer “social tariffs” for people on Universal Credit, Pension Credit and some other benefits. Ofcom lists them on its website (search “Ofcom social tariffs”).
- Council Tax Reduction: if you're on a low income, ask your council what help you can get. If you live alone (or are the only adult), you may get a single person discount.
- Help with food: Healthy Start, Best Start Foods (Scotland) and free school meals – see our guide to planning cheap family meals with AI.
- Your energy supplier: if you're struggling to pay, contact your supplier – they should work with you to agree a payment plan you can afford. Our guide to understanding and cutting your energy bills with AI explains your bill and where to get help.
Rules and amounts change, so check the official website before you apply.
If you're struggling with debt: free UK help
You don't have to sort it out alone, and you never need to pay for debt advice. These services are free and confidential:
- MoneyHelper (moneyhelper.org.uk) – free, backed by government. Its Debt advice locator finds free advice near you, online or by phone.
- Citizens Advice – England 0800 144 8848, Wales 0800 702 2020, Scotland 0800 028 1456, or webchat on citizensadvice.org.uk.
- National Debtline (England and Wales) – 0808 808 4000, plus a free online budgeting tool, My Money Steps.
- StepChange Debt Charity – 0800 138 1111, or online at stepchange.org.
- In Northern Ireland, Advice NI gives free debt advice.
Priority bills first. Debt advisers usually ask you to deal first with bills where the consequences of not paying are most serious – such as rent or mortgage, council tax, and gas and electricity – before things like credit cards. An adviser can help you work out what to pay and talk to the people you owe.
- Breathing Space (England and Wales): a debt adviser can apply for this for you if you're eligible. It freezes most interest and charges and pauses most action from the people you owe for up to 60 days while you get advice.
- Be careful with “debt help” adverts. Some firms charge fees for things free advisers do at no cost. Never borrow from someone who isn't authorised by the Financial Conduct Authority – you can check on the FCA register.
- Feeling overwhelmed? Money worries can affect your health. Talk to your GP, or call Samaritans free on 116 123, any time.
Frequently asked questions
Can ChatGPT make a household budget for me?
Yes. The free versions of ChatGPT, Microsoft Copilot, Google Gemini and Claude can turn a list of your income and bills into a simple monthly budget, show what's left over, and suggest where you might cut back. Type rounded totals for each type of spending – never your bank details or a copy of your bank statement.
Is it safe to put my finances into an AI chatbot?
It's safe enough if you only share rounded amounts by category, such as “rent £750, food about £400”. Never type in bank logins, passwords, card numbers, account numbers or sort codes, and don't upload whole bank statements. A budget doesn't need any of those.
Is there a free budget planner in the UK?
Yes. MoneyHelper, the free government-backed service, has a free online Budget planner, and National Debtline has a free budgeting tool called My Money Steps. You can use either alongside a chatbot – for example, use the chatbot to sort your spending into categories, then check the totals in the planner.
Can AI give me financial advice?
No. A chatbot can help you organise your numbers and explain terms, but it isn't a regulated financial adviser and it can get rules, prices and sums wrong. For debt, benefits or big money decisions, get free advice from MoneyHelper, Citizens Advice, National Debtline or StepChange.
What should I do if my budget shows I can't pay my bills?
Don't ignore it, and don't borrow more to cover the gap. Contact a free debt adviser such as Citizens Advice, National Debtline or StepChange, or find one with MoneyHelper's Debt advice locator. They can help you deal with the most important bills first and talk to the people you owe.
Do I need a paid AI plan to budget?
No. A monthly budget easily fits within the free versions of the main chatbots. If you hit a daily limit, wait a while or try another free chatbot.