Do You Need Vendor Compliance Review? A Practical Starting Point
Your Input Tax Credit is only as safe as your weakest vendor. Under the current GSTR-2B-driven ITC regime, a single supplier who does not file their GSTR-1 or GSTR-3B on time — or who quietly gets their registration cancelled — can silently strip credit out of your books months after you have already used it to pay your own GST liability. At PNPC Global, we run structured vendor GST compliance reviews that go far beyond a one-time GSTR-2B download: we build a live vendor risk register, flag filing-frequency mismatches, chase non-filers before your credit is blocked, and give your procurement and finance teams a defensible audit trail.
What This Actually Covers
Vendor Compliance Review — sometimes called vendor GST health-check or supplier compliance audit — is a structured, recurring exercise in which a business systematically verifies that every GST-registered vendor it deals with is actually filing returns, actually depositing the tax collected, and remains an active, non-cancelled taxpayer. It exists because of how Input Tax Credit works under the CGST Act: since the removal of the provisional 5% additional ITC buffer effective 1 January 2022, Section 16(2)(aa) read with Rule 36(4) restricts a recipient's ITC claim strictly to invoices that actually appear in their auto-populated GSTR-2B statement. In other words, ITC is no longer a function of what you paid your vendor and what invoice you hold — it is a function of whether your vendor filed their GSTR-1 correctly and on time.
For the full scope, current process and what PNPC includes, see the dedicated Vendor Compliance Review service page.
Is This Relevant to Your Business?
- Your business has meaningful monthly ITC claims and even a small percentage of blocked or reversed credit materially affects cash flow — most manufacturing, trading, and services businesses above small-scale turnover fall into this category
- You have a large or fragmented vendor base — many suppliers — where manually tracking each one's filing status in a spreadsheet has already become unreliable or has already caused a missed reversal
- You have experienced at least one GSTR-2B mismatch, ITC reversal notice, or a vendor whose GSTIN was cancelled without your knowledge — a pattern that almost always repeats without a systemic fix
- Your procurement function onboards new vendors regularly and currently has no formal GST-registration or compliance-history screening step before the first purchase order is issued
Before You Assume You Need This
- A very small business with a handful of long-standing, well-known vendors, low monthly ITC value, and no history of GSTR-2B mismatches — a basic monthly reconciliation may be proportionate without a full vendor risk-tiering programme
- A business operating entirely under the Composition Scheme, which does not claim ITC at all — vendor GST filing behaviour, while still worth a basic registration check, has no direct ITC consequence for a composition dealer
- A cash-and-carry retail business where nearly all purchases are from a small number of large, listed, or well-capitalised suppliers whose own compliance track record is independently strong and easily verified
Questions We're Actually Asked
What exactly is a Vendor Compliance Review, in plain terms?
It is an ongoing check to confirm that the vendors you buy from are actually filing their GST returns and remain validly registered — because under current rules, your ability to claim credit for the GST you paid them depends entirely on whether they report that sale correctly on their end. It is not a one-time check; it is a recurring discipline, typically run every filing period, alongside a one-time screening step whenever a new vendor is onboarded.
Why does my vendor's GST filing behaviour affect my own Input Tax Credit?
Since the removal of the provisional 5% additional ITC buffer effective 1 January 2022, Section 16(2)(aa) of the CGST Act read with Rule 36(4) restricts your ITC claim to invoices that actually appear in your auto-populated GSTR-2B statement. GSTR-2B is generated from your suppliers' GSTR-1 filings. If your vendor does not file GSTR-1, files it late, or misreports the invoice, that invoice simply will not show up in your GSTR-2B — and you cannot claim ITC on it, regardless of how genuine the purchase was or how promptly you paid the vendor.
What is GSTR-2B and how is it different from GSTR-2A?
GSTR-2A is a dynamic, continuously updated statement that reflects supplier filings as and when they happen during a period — it can change even after the period has closed if a supplier files late. GSTR-2B is a static, month-end snapshot generated once per period (by the 14th of the following month) that reflects only invoices the supplier had filed by that cut-off, and it does not change thereafter for that period. ITC eligibility under Rule 36(4) is determined by reference to GSTR-2B specifically, because it gives a fixed, auditable figure rather than a constantly shifting one.
Getting This Right From the Start
Your ITC is only as strong as your least compliant vendor — let PNPC build the monitoring discipline that keeps it protected, month after month, not just at year-end.
PNPC Global has advised Chennai, Bangalore and Hyderabad businesses since 1986. Explore the full GST practice for related services, or go straight to the Vendor Compliance Review page for specifics.
Specific rates, fees, thresholds and deadlines are set by the relevant authority and change over time — this article deliberately does not quote figures that could go stale. Confirm current numbers directly with PNPC or the official source before you act.