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Get supplier bills into your books

“Bills arrive by email in every format and I re-type them into my accounting.”

AI can read bill PDFs, pull out vendor, amount, due date and line items, check for duplicates, and stage them for approval. You approve before anything is entered or paid.

Fix it yourself in 3 steps

Collect the month's bills (or point the AI at the inbox folder they land in).
Ask it to extract each bill, check for duplicates and missing tax lines, and match to purchase orders.
Approve the list, then enter or import into your accounting software yourself.

Copy this prompt

Read these supplier bills: [files]. For each, extract vendor, invoice number, date, due date, amount, tax, and line items. Flag duplicates, missing tax, and anything not matching a purchase order [list]. Output a table sorted by due date. Don't enter, schedule or pay anything — stop for my approval.

Fill in the [brackets]. Each prompt says when the AI should stop, so it doesn't wander off.

Agents people used for this: n8n, Make, Claude Code, Cursor.

Inspired by real examples collected at agentusecases.ai.

📚 14 real stories of people doing this with AI agents

Automate invoice organizing and monthly invoice emails · Cursor
Build purchase orders and track payables nightly · Make
Bundle monthly vendor invoices for the accountant · Grok Bot
Check supplier invoices for duplicates and missing GST · custom-built or unnamed agent
Collect monthly invoices and email them to an accountant · custom-built or unnamed agent
Create bills in QuickBooks from supplier invoices · custom-built or unnamed agent
Email a weekly digest of payment notification emails · n8n
Extract invoice data and file it into a bookkeeping sheet · n8n
Extract supplier invoice PDFs into a monday.com board · Make
Extract vendor PDFs and create QuickBooks invoices · Claude Code
Log, categorize and file invoices for bookkeeping · Claude
Process supplier invoices from Gmail through approval and payment · n8n
Pull invoices from Gmail and organize them · custom-built or unnamed agent
Validate invoices against inventory and create purchase orders · n8n

Collected at AgentUseCases.ai.

Black out account and card numbers before sharing anything. Never give an AI your bank password — export statements instead. AI drafts; you approve and send. Not financial, legal or tax advice.

Tools for this

#1 · Our pick

Grok Bot

Best for: Chores that repeat — done for you

The easiest AI helper for everyday people: show it a chore once — a morning brief, checking a bill, watching for a refund — and it keeps doing it while you're away, checking in only when it needs your OK. Works from the Grok app on your phone and computer (beta).

Visit Grok Bot ↗

ChatGPT

Best for: Widest feature set

OpenAI's assistant with the broadest feature set: voice, images, search and a large app ecosystem.

Visit ChatGPT ↗

Gemini

Best for: Google Workspace users

Google's assistant, woven into Gmail, Docs and Android. Strongest if you live in Google's apps.

Visit Gemini ↗

Claude

Best for: Writing, analysis, code

Anthropic's assistant: strong writing, analysis and coding, with projects and artifacts for longer work.

Visit Claude ↗

Claude Code

Best for: Serious work on real repos

Anthropic's agent for your terminal, IDE and desktop. Reads the whole repo, runs commands and tests, and handles large multi-file changes well.

Visit Claude Code ↗

Cursor

Best for: Editor-first developers

A VS Code-style editor built around AI, with background agents. The comfortable choice if you live in an editor.

Visit Cursor ↗

n8n

Best for: Self-hosted automation

Visual workflow automation you can self-host, with AI agent nodes. Popular with builders who want control.

Visit n8n ↗

Make

Best for: Complex flows, lower cost

Visual scenario builder that handles branching flows well and is usually cheaper than Zapier for heavy use.

Visit Make ↗

Grok

Best for: Real-time info, everywhere you go

xAI's assistant with real-time X data — on iPhone, Android, desktop, the web, X, and built into Tesla cars. Want it to do chores on its own? See Grok Bot.

Visit Grok ↗