Starter path · free 4-week plan

Set up document checkers for bookkeepers and trades

Someone types invoices and receipts into a spreadsheet by hand. You set up a reader that turns a PDF into a ledger row and checks the arithmetic, and flags anything that doesn't add up for a person, instead of guessing.

It fits when you like sorting and organizing, you're fine with a tutorial or more, and you'd rather look after a few clients.

Week 1: the job

  • Find who types in invoices or receipts near you: a bookkeeper, a plumber, a small office.
  • Install n8n and a free local model.

Week 2: build the checker

  • Read the fields from a text PDF; never let the AI do the sums.
  • Check the arithmetic in the workflow, and flag what doesn't add up.

Week 3: test it

  • Eight sample documents, three that should be flagged. Keep every run.
  • Note what it can't read: photos and scans with no text.

Week 4: one conversation

  • Show one person a flagged invoice on their own kind of paperwork.
  • Ask how long their typing takes each week, and listen.

The limits, before you start

It reads PDFs with a text layer; a photo of a receipt is flagged, not read. It checks arithmetic, not whether a price was fair.

No one can promise you income from this, and we won't. As of November 2026 the business behind this site has earned $0, and it says so in public.

Start with the free AI Side-Income Checklist. When you want every step as a video lesson, Bot Gigs is the full course. Not sure this is your path? Take the 2-minute quiz.

The other starter paths: Set up FAQ bots for local businesses · Build and sell n8n templates · Run an AI content channel (like this one) · Write about what you learn (a blog or newsletter) · Learn first: two weeks of n8n basics