As of 13 August 2026, AI can make a monthly budget.

What to actually do

1. Use a tool built for this

   The route this page recommends

2. Do it yourself

   Second choice

   A chat interface, chat-fluent skill, and roughly 30 minutes until you can act on the result.

   How to actually do it

   1. Open your current bank and credit card statements and list the last few months of income, bills, food, travel, subscriptions, debt payments and other spending in pounds.
   2. Gather payslips, council tax or rent details, utility bills, insurance renewals and any annual or irregular costs, recording the amount and how often each is paid.
   3. Remove account numbers and other unnecessary personal information, then paste the figures into the prompt under the matching headings.
   4. Ask the chatbot to produce the monthly budget using only your supplied figures and to flag missing information instead of estimating it.
   5. Compare every drafted income and expense figure with the relevant statement, bill or payslip, and correct any duplicated, omitted or wrongly converted item.
   6. Put the verified totals into a spreadsheet or budgeting app, then set the spending limits and savings transfers you are actually willing and able to follow.

   Prompt

   Make me a realistic monthly household budget from the information below. Use pounds sterling and show monthly income, fixed bills, variable essentials, discretionary spending, savings and an amount left over. Convert irregular costs into monthly amounts only when I provide the frequency and amount, and label those conversions clearly. Do not invent figures, assume missing costs, recommend borrowing or give investment, tax or regulated financial advice. If the figures do not balance, show the shortfall and list practical categories to check rather than hiding it. Separate essential spending from optional spending. Include a simple table, the calculation for each total, and up to five questions about missing or unclear information. Use only the information I provide. My situation: [brief description]. Monthly income after tax: [amounts and sources]. Fixed monthly bills: [items and amounts]. Irregular essential costs with frequency: [items, amounts and frequency]. Typical variable essential spending: [items and amounts]. Discretionary spending: [items and amounts]. Existing debt payments: [items and amounts]. Savings or sinking-fund goals: [goals and amounts]. Current cash buffer: [amount].

   Open it prefilled in ChatGPT or Claude, or copy it into Gemini, which takes no prefill link.

3. Hand it to a person

   The distant third

   A person who owns the outcome does this end to end, worth it when the failure is dear.