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Invoice & Receipt Extractor
Turns invoices, bills and receipts (PDF, scans, phone photos) into one checked row each, with line items, duplicate checks and a review list.
Claude skill + n8n workflow
$29
Get itAgents / Finance & ops / India small business
GSTR-2B Reconciler
Match your downloaded GSTR-2B JSON against your Tally or Zoho purchase register. Finds missing bills, tax differences and GSTIN typos. Free, offline.
Free Format: Claude skill#Finance & ops#India small business#Claude skill packs
Free
FreeBeing packagedUpgrade to Pro: GSTR-2B Reconciler Pro · $19
Coming soon. Follow Oarsman AI on Gumroad and you'll get an email when it launches. It will sell through Gumroad, with a 14-day refund.
See it work
How GSTR-2B Reconciler moves through a job, step by step. The run below is an example output, written from what this agent does. It isn't a live run on your data.
Sample input
GSTR-2B JSON for one month, downloaded by you from the GST portal
Example output Illustration
You get: - report.md with the summary, ITC at risk and a to-do list - recon.csv with one row per bill and its status
What you get
- Planned contents (not released yet):
- Skill folders you add to Claude
- A Python script behind each skill, so numbers are calculated, not guessed
- Sample data and the test suite, so you can check it yourself
What it does
- report.md with the summary, ITC at risk and a to-do list
- recon.csv with one row per bill and its status
Tools and costs you'll need
- Claude.ai with code execution, or Claude Code
- Python 3.10+ (standard library only; openpyxl only for XLSX)
- GSTR-2B JSON downloaded from the GST portal
- Purchase register export from Tally, Zoho Books, Busy or Excel
Third-party costs are paid to those providers, not to us.
Test report
41/41 automated checks pass on Python 3.13.5 (standard library only); 15 cases incl. invalid input, duplicates and upstream failures. Not tested: a real GSTR-2B download from the portal (the samples follow the published JSON layout); XLSX registers in the shipped tests (CSV only); registers from Busy or Marg.
Known limits
- Not tested yet: a real GSTR-2B download from the portal (the samples follow the published JSON layout); XLSX registers in the shipped tests (CSV only); registers from Busy or Marg.
- Not on sale yet: it goes on Gumroad once checkout is live. Follow to hear when.
Live demo
- No live demo yet. We'll add one when it ships.
Demos use fictional businesses and data.
Pro Upgrade to Pro
Want the full version? GSTR-2B Reconciler Pro
Reconcile several months of downloaded GSTR-2B JSON with your purchase register. Pairs retyped bill numbers, places late filers, drafts supplier follow-ups $19 (coming soon).
What's AI here, and what isn't
This is an AI agent: it uses an AI model to read, sort, score or draft. It runs in your own accounts. Anything it would send outside your business waits for your approval unless you choose otherwise, and it never needs your passwords. Our AI disclosure.
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Get itQuestions about GSTR-2B Reconciler
What does GSTR-2B Reconciler do?
Match your downloaded GSTR-2B JSON against your Tally or Zoho purchase register. Finds missing bills, tax differences and GSTIN typos. Free, offline. report.md with the summary, ITC at risk and a to-do list. recon.csv with one row per bill and its status.
What do I need to run GSTR-2B Reconciler?
You need: Claude.ai with code execution, or Claude Code; Python 3.10+ (standard library only; openpyxl only for XLSX); GSTR-2B JSON downloaded from the GST portal; Purchase register export from Tally, Zoho Books, Busy or Excel. Third-party costs are paid to those providers, not to us.
Is GSTR-2B Reconciler tested?
41/41 automated checks pass on Python 3.13.5 (standard library only); 15 cases incl. invalid input, duplicates and upstream failures. Not tested: a real GSTR-2B download from the portal (the samples follow the published JSON layout); XLSX registers in the shipped tests (CSV only); registers from Busy or Marg.
How do I get GSTR-2B Reconciler?
It isn't on sale yet. It's planned at Free on Gumroad, with a 14-day refund. Press "Get notified" to follow us on Gumroad and hear when it launches.
Does it log in to the GST portal?
No. You download the GSTR-2B JSON yourself and attach it. It never asks for your password, OTP or any API key.
Which purchase registers work?
Any CSV or Excel export with a GSTIN column, a supplier invoice number column and IGST and/or CGST/SGST columns. Tally, Zoho Books and Busy exports usually have these headers.
Is the free version limited?
One GSTR-2B month per run with exact bill-number matching. No account and no monthly cap.
Can I claim ITC from this report?
It is matching help for your records, not tax advice. Your CA decides what ITC to claim.
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