GSTR-2B vs Purchase Book ITC Matcher — what it does

Matches your GSTR-2B against your own purchase register and shows exactly where the two disagree, so the Input Tax Credit you claim on GSTR-3B is the credit you can actually defend. Built for accountants and business owners who currently do this line by line in Excel — and who cannot upload a client's purchase register to a website.

How to use GSTR-2B vs Purchase Book ITC Matcher

  1. Download your GSTR-2B JSON from the GST portal (Returns → GSTR-2B → Download JSON) and keep your purchase register as CSV or Excel.
  2. Drop both files into the tool. Parsing happens in the browser — no file is uploaded, which is the reason this works for client data.
  3. Review the three buckets: invoices present in both, invoices in GSTR-2B but missing from your books, and purchases you booked that the supplier never filed.
  4. Open the supplier-default list and export the follow-up notice text to send to vendors who have not filed.
  5. Download the reconciled sheet as CSV for the person filing GSTR-3B, and keep the mismatch list with your working papers.

Worked example: a supplier who filed late

You booked an invoice of ₹1,18,000 from a vendor in August and claimed ₹18,000 as Input Tax Credit. Their GSTR-1 for August never went in, so the credit does not appear in your August GSTR-2B. The tool puts that invoice in the default bucket with the GSTIN, invoice number and taxable value, so instead of discovering the reversal during a notice you can chase the vendor in the same month.

At a glance

InputGSTR-2B JSON download + purchase register (CSV/XLS)
OutputMatched / missing / default buckets, follow-up notice text, CSV export
GSTIN handlingValidated for structure and check digit while matching
Where it runsEntirely in your browser — no upload, works offline after first load
Best forMonthly ITC reconciliation, vendor follow-up, audit working papers

Frequently asked questions

What is GSTR-2B vs Purchase Book ITC Matcher?
Reconcile GSTR-2B with your Purchase Register, catch supplier defaults, prevent blocked Input Tax Credit, and generate follow-up notices.
Is GSTR-2B vs Purchase Book ITC Matcher free to use?
Yes — GSTR-2B vs Purchase Book ITC Matcher is free to use, with no sign-up, no install and no account.
Does GSTR-2B vs Purchase Book ITC Matcher upload or store my data?
No — GSTR-2B vs Purchase Book ITC Matcher runs entirely in your browser, so your text, files and results never leave your device.
Do I need to install anything to use GSTR-2B vs Purchase Book ITC Matcher?
No — it works in any modern browser (Chrome, Edge, Firefox, Safari) with no downloads, accounts or plugins.
Can I reconcile a whole financial year at once?
The tool works on one GSTR-2B period against one purchase register, which is how the portal gives you the data. For an annual review, run each month and keep the CSV exports — that also gives you a month-by-month trail if a notice arrives.
What if my purchase register has no GSTIN column?
Without a GSTIN the match falls back to invoice number plus taxable value, which is weaker. Adding a GSTIN column to your export is the single change that makes reconciliation reliable, so the tool reports which rows it could only match loosely.
Is uploading the GSTR-2B JSON safe here?
Nothing is uploaded. The file is read with the browser's own file APIs and the parsing runs on your machine, so a client's purchase register never leaves the laptop it is opened on.

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