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Get your Self Assessment done before the January rush

Every year you swear you'll do your tax return early, and every year it's late January. Get a simple plan and an income-and-expenses summary sheet so it's done by November.

Updated 17 Oct 2026

The prompt · ChatGPT

Help me get my Self Assessment done early.

Income sources: [self-employment, property, employment, other]
How I keep records: [app, spreadsheet, paper]
What slowed me down last year: [details]
Anything new this year: [details]

First ask me up to 4 short questions. Wait for my answers.

Then:
1. A 4-week plan, an hour or two a week.
2. A Google Sheets summary layout: income by month, expenses by GOV.UK category, totals.
3. A list of the GOV.UK allowable expense categories to check against, with the link.
4. The key deadlines from GOV.UK, named and linked.
5. A list of questions to check with HMRC or an accountant.

Not tax advice. Only use what I've told you, leave blanks for anything I haven't given, and don't invent facts or figures. UK English.

For Self Assessment deadlines and allowable expenses on GOV.UK, use web search and name the page you used. If it doesn't search on its own, open View all tools and choose Search.

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. self-employment, property, employment, other: a short note you already have. app, spreadsheet, paper: 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.

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