AI Invoice & Expense Review Agent Kit

Price: ₹399 (one-time purchase)

Format: ZIP (4 PDFs + Python agent + n8n workflow + prompts)

Delivery: Instant download after payment is confirmed.

Category: AI Agents

Description

AI invoice review kit for GST and VAT: extract fields, check line and tax totals, flag bank changes and errors for human review. Never pays. Extract GST/VAT invoice fields, recheck the maths and flag risky invoices for review. Extract every key field from GST and VAT invoices, check line items and tax totals, and flag risky bills before anyone pays. The agent pulls out vendor, tax IDs, dates, lines and taxes with the exact source text, then lists missing fields, arithmetic mismatches and bank detail changes in plain English. It is built for freelancers, small businesses and finance teams in India, the UAE and beyond. It never pays or approves anything: it prepares structured results so a person can verify, correct and record each invoice. Who it's for Freelancers, small businesses and finance operations teams handling GST and VAT invoices in India, the UAE and elsewhere. What it does • Field extraction for vendor, GSTIN or TRN, invoice number, dates, place of supply and bank details • Line-by-line arithmetic recheck in Python code (agent/checks.py) with stated, computed and difference values • CGST, SGST, IGST and UAE VAT checks with stated, computed and difference values • Vendor master comparison that flags tax ID or bank account mismatches as high risk • Injection-resistant prompts that flag 'pay now' and 'mark approved' text as suspicious • Python agent with batch mode to CSV, n8n webhook workflow and six finance task prompts Benefits • Turn manual invoice typing into a quick field-by-field review • Spot possible overcharged totals and wrong tax amounts before they are recorded • Reduce the risk of paying fraudulent bank detail changes • Give your accountant cleaner, consistent invoice data each month • Keep full control: nothing is paid or recorded without a person What's inside • 4 PDF guides (43 pages): Start Here, Build Guide, Prompt Pack, Testing, Security & Costs • Runnable Python agent (standard library only) with 22 automated tests, batch mode and cost limits • Importable n8n workflow with input validation and review rules • System prompt, a no-code prompt for any AI chat, and 6 task prompts (TXT + CSV) • 3 sample inputs, including a prompt-injection test • Editable Markdown sources, README, license and checksum manifest Three ways to use it 1. No-code: paste the prompt into ChatGPT, Claude or Gemini (5 minutes) 2. Python: run the agent on one file or a whole folder (Python 3.11+, nothing to install) 3. n8n: import the workflow and call it from a form, sheet or app Use cases • A freelance designer in Bengaluru checks supplier invoices for correct CGST and SGST split before passing them to their CA. • A Dubai trading company extracts vendor TRN, VAT amount and due date from incoming invoices as structured JSON for a person to review each morning. • An operations executive catches an invoice whose stated grand total does not match the line items plus tax. • A small agency flags any invoice that asks for payment to bank details different from the vendor's known record. • A finance team prepares a clean, field-by-field entry for review before keying it into Tally, Zoho Books or another accounting tool. Requirements • For the no-code route: any AI chat account • For the code route: Python 3.11 or newer • For real AI results: an Anthropic or OpenAI API key (paid per use) or a free local model with Ollama • Optional: n8n Cloud or self-hosted n8n Running costs The kit is a one-time payment. AI model usage is billed by your provider per use; the kit includes cost limits and a cost formula. Free options: the offline demo mode and local models via Ollama. Honest notes • The agent produces drafts and structured data. It never sends, posts, pays or changes records — a person reviews and acts. • Tested offline and in n8n against a local test server; live provider calls need your own key. • Results depend on your inputs and model. No income or results are promised. FAQs Q: Can this agent pay invoices or push entries into my accounting software? A: No. It only extracts and checks data. A person reviews every row and then records or pays the invoice in their own accounting tool or bank. Q: Does it work for both Indian GST and UAE VAT invoices? A: Yes. It extracts GSTIN or TRN, CGST, SGST, IGST or VAT amounts and checks the arithmetic. It does not judge whether the tax treatment is legally correct. Q: How are the totals checked if language models make maths mistakes? A: The model reads the invoice and fills stated and computed values. Then agent/checks.py recalculates every line (quantity x unit price) and every difference in plain Python, corrects the model if needed and adds a note to issues, which forces human review. Tax amounts the model computed are shown for a person to confirm against the original. Q: Can it read photos of paper invoices? A: Only as text. Run OCR on photos or scans first, or use a vision-capable model outside the kit, then paste the text into invoice_text. OCR errors are common on photos, so always check amounts against the original. Q: Is this tax advice? A: No. It is a data extraction and checking tool. Please have your accountant confirm tax treatment and how entries should be recorded for your business. Want all 20 agent designs, a full course and a research agent? See the AI Agent Builder Master Kit on DigiCools. License: single-buyer license — use and modify for personal and commercial projects, including client work; no resale or redistribution. Version 1.0.0 · ZIP 383 KB · Instant download

What's included

• 4 PDF guides — 43 pages (Start Here, Build Guide, Prompt Pack, Testing, Security & Costs)
• Runnable Python agent — 22 automated tests, batch mode, cost limits
• Importable n8n workflow with validation and review rules
• 8 prompts — system, no-code (any AI chat) and 6 task prompts (TXT + CSV)
• 3 sample inputs incl. a prompt-injection test
• Editable sources, README, license, manifest · ZIP 383 KB

Frequently asked questions

What is included in the invoice review kit?

4 PDF guides (43 pages: Start Here, Build Guide, Prompt Pack, Testing, Security & Costs), a runnable Python agent with 22 automated tests, batch mode and cost limits, an importable n8n workflow, a system prompt, a no-code prompt, 6 task prompts (TXT + CSV), 3 sample inputs and editable sources, README, license and manifest.

Does it work for Indian GST and UAE VAT invoices?

Yes. It extracts GSTIN or TRN and CGST, SGST, IGST or VAT amounts and checks the arithmetic. It does not judge whether the tax treatment is legally correct, so have your accountant confirm that.

Can it pay invoices or push entries into my accounting software?

No. It only extracts and checks data. A person reviews every row and then records or pays the invoice in their own accounting tool or bank.

Can it read photos of paper invoices?

Only as text. Run OCR on photos or scans first, or use a vision-capable model outside the kit, then paste the text into invoice_text. Always check amounts against the original.

Tags: invoice processing, gst invoice, uae vat, expense review, ai agent kit, accounts payable, invoice data extraction, finance workflow, n8n workflow, small business finance, fraud check