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Split shared costs fairly with housemates or a partner
One person earns more, or uses more. Get a fair split method you can both see in a simple sheet.
The prompt · ChatGPT
Help me split shared costs fairly. Shared costs: [rent, bills, food, with amounts] People: [names, incomes if they're happy to share, rooms/sizes if relevant] What feels unfair now: [details] What we want: [simple method we can stick to] Ask me up to 3 short questions first if anything important is missing. Wait for my answers. Then: 1. Two or three fair methods (equal, income-based, room-based) with a worked example on our numbers. 2. Pros and cons of each. 3. A Google Sheets layout to track who paid what. 4. A short house agreement paragraph. Only use what I've told you, leave blanks for anything I haven't given, and don't invent facts, figures or products. UK English. Stay in this ChatGPT chat. Do not turn on apps or connectors, and do not use memory from another chat.
A short example
Fill the blanks, then paste. rent, bills, food, with amounts: a short note you already have. names, incomes if they're happy to share, rooms/sizes if relevant: a short note you already have. Leave the rest of the prompt as written.
This does not give tax advice. The books stay in the accounting system.
The prompt · Gemini
Help me split shared costs fairly. Shared costs: [rent, bills, food, with amounts] People: [names, incomes if they're happy to share, rooms/sizes if relevant] What feels unfair now: [details] What we want: [simple method we can stick to] Ask me up to 3 short questions first if anything important is missing. Wait for my answers. Then: 1. Two or three fair methods (equal, income-based, room-based) with a worked example on our numbers. 2. Pros and cons of each. 3. A Google Sheets layout to track who paid what. 4. A short house agreement paragraph. Only use what I've told you, leave blanks for anything I haven't given, and don't invent facts, figures or products. UK English. Keep the shared costs table as a table so I can use Export to Sheets. Stay in this Gemini chat. Leave extensions off, including Gmail and Drive.
A short example
Fill the blanks, then paste. rent, bills, food, with amounts: a short note you already have. names, incomes if they're happy to share, rooms/sizes if relevant: a short note you already have. Leave the rest of the prompt as written.
You list shared bills and each person's situation.
The assistant asks what 'fair' means to you.
You get two or three split methods, a worked example and a sheet layout.
What happens
Use Gemini to split shared costs fairly with housemates or a partner
One person earns more, or uses more. Get a fair split method you can both see in a simple sheet.
Tools
Paste the prompt, fill the blanks, copy the draft.
- Gemini — required. Drafts from the text you paste. Nothing is sent.
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