GST Reconciliation

GST reconciliation is the process of matching the GST data in your own books against the data on the GST portal, mainly your GSTR-2B (which sets your available input tax credit), your filed GSTR-1 (reported sales) and GSTR-3B (summary and tax). When these agree, your credit flows cleanly and your returns hold up. When they don’t, you either lose credit you’ve paid for or claim credit you’ll have to reverse. Reconciliation turns that risk into a controlled monthly routine and we provide it monthly and annually for businesses across Vasai-Virar.

We match your records to the portal every cycle, end to end. We pull your GSTR-2B, IMS, GSTR-1 and GSTR-3B and compare them invoice-by-invoice against your purchase and sales registers. We classify every mismatch, check ITC eligibility under Section 17(5), action your IMS, reconcile books to returns and hand you a clear mismatch report with recommended actions. We also give you a vendor follow-up list for stuck credit, correct genuine errors in the next return and carry the monthly work into your annual GSTR-9/9C and any notice reply.

Every GST-registered business that claims input tax credit needs it, but it’s especially critical if you have many suppliers, high purchase volumes or thin margins where lost credit really hurts. We reconcile for traders and wholesalers, manufacturers, e-commerce sellers, service businesses, private limited companies facing higher scrutiny and GSTR-9C, importers claiming IGST credit and any business dealing with a mismatch notice. If ITC is a meaningful part of your working capital, reconciliation protects it.

Because the 2025 rules made it essential rather than optional housekeeping. The Invoice Management System (IMS) now drives your GSTR-2B, GSTR-3B liability is hard-locked to your GSTR-1 and the Section 16(4) deadline permanently lapses unclaimed credit. Together these mean errors can’t easily be fixed after filing and missed credit is gone for good. Getting reconciliation right every month is now how you defend both your cash and your compliance record, which is exactly what we build into every cycle.

Several things. Your purchase register against GSTR-2B/IMS (which decides how much credit you can legally claim), your reported GSTR-1 sales against the tax declared in GSTR-3B (a top notice trigger if inconsistent), your books against what you actually filed in GSTR-3B, your output tax against e-invoice/e-way bill data and at year-end your annual turnover and tax against your returns for GSTR-9/9C. Each of these catches a different kind of leakage or red flag, which is why a thorough reconciliation covers all of them.

Because input tax credit is real money, often a large part of your working capital and the GST system matches everything automatically. Reconciliation ensures you claim all the credit you’re entitled to and none you’re not. It keeps your GSTR-1, GSTR-3B and books consistent, which prevents the scrutiny notices the department issues when its system spots a gap. It also protects you from reversals with 18% interest, beats the Section 16(4) deadline and makes your year-end GSTR-9/9C straightforward instead of a scramble.

More than most owners realise and it compounds. You lose eligible ITC that’s never claimed or credit lapses permanently under Section 16(4). Over-claimed credit gets reversed with 18% interest and inconsistent returns invite ASMT-10 or DRC-01 scrutiny notices and penalties. Cash gets tied up in stuck credit, straining working capital and your annual return becomes a painful, error-prone scramble. Without a clear record, you also can’t prove which supplier caused a credit loss. Reconciliation prevents every one of these.

Eyeballing a register works for a handful of invoices but beyond that it’s slow and misses real mismatches. Manual DIY tends to ignore IMS, leave credit unclaimed, skip vendor follow-up, and produce weak documentation if a notice arrives and it’s easy to miss the Section 16(4) deadline. Our process is invoice-level and thorough, actions IMS every cycle, maximises safe ITC recovery, tracks deadlines and produces defensible, reconciled records. You get accuracy and recovered credit instead of lost credit, reversals and penalties.

Very much. Reconciliation reveals exactly which suppliers haven’t filed or have reported invoices incorrectly, costing you credit. We give you a follow-up list so you can chase them, hold payments where appropriate or reconsider non-compliant vendors, real negotiating leverage backed by hard data. Over time this protects your credit and improves the compliance quality of your whole supply chain, a benefit that goes well beyond the GST return itself.

Significantly. When your books tie to your returns and your GSTR-2B every month, the annual GSTR-9 and GSTR-9C become straightforward rather than a stressful year-end reconstruction. Reconciled, audit-ready records also make any departmental assessment painless and give lenders and auditors clean data to rely on. In short, monthly reconciliation front-loads the discipline so year-end and audits are quiet, problems found monthly are cheap to fix; found at year-end they’re costly.

Both show inward supplies your suppliers reported, but GSTR-2A is dynamic, it keeps changing as suppliers file, while GSTR-2B is static, generated once for a period and is the official basis for your input tax credit claim. For reconciliation and claiming ITC, GSTR-2B is what matters; relying on 2A is a common mistake. We reconcile your purchases against 2B and the Invoice Management System, so your claim is accurate and defensible.

Because input tax credit is effectively limited to what appears in your auto-generated GSTR-2B. If a supplier hasn’t filed, that credit simply isn’t available to you until they do. So matching your purchases to 2B each month is how you know exactly what you can legally claim right now, and which suppliers to chase for the rest. Claiming beyond your 2B is unsupported and liable to reversal, which is why 2B, not your purchase book is the anchor for a safe claim.

It compares the sales you reported invoice-wise in GSTR-1 against the summary sales and tax you declared and paid in GSTR-3B. A gap between the two is one of the leading triggers for a departmental scrutiny notice, because the system flags the inconsistency automatically. And since GSTR-3B is now hard-locked from GSTR-1, this sales reconciliation has to happen before you file, there’s no fixing it in 3B afterwards. We align the two every cycle to keep your account off the scrutiny radar.

IMS is a GST portal feature that lets you accept, reject or keep pending each invoice your supplier reports. Only accepted or deemed-accepted invoices flow into your GSTR-2B, which decides your eligible credit, so reviewing IMS is now a core reconciliation task every cycle. Handled wrongly, you can let incorrect invoices in or miss genuine credit. We action your IMS each period as part of the service, so your 2B and ITC stay correct. For QRMP taxpayers, 2B is generated quarterly under IMS.

Section 17(5) lists items on which input tax credit cannot be claimed even if GST was paid, for example, certain motor vehicles, personal-use items and specific expenses. A key part of reconciliation is excluding this blocked credit so you don’t claim it by mistake and face reversal. We check ITC eligibility during reconciliation, so your claims include only what the law actually allows not everything that happens to appear in your 2B.

They fall into a handful of patterns: an invoice in your books but not in GSTR-2B (supplier hasn’t filed), an invoice in 2B but not in your books, a value or tax difference between sources, a wrong GSTIN, a duplicate invoice, ineligible credit claimed under Section 17(5), a GSTR-1 vs 3B gap or a credit/debit note recorded on only one side. Each has a specific fix and our mismatch report tags every one with its cause and the recommended action.

It usually means the supplier hasn’t filed or hasn’t correctly reported that invoice, so the credit isn’t yet available to you. Claiming it anyway is unsupported and liable to reversal with interest. The right action is to defer that claim until the invoice appears in your 2B, and follow up with the supplier to file. We flag exactly these cases and put the supplier on your vendor follow-up list, so the stuck credit gets recovered rather than lost or wrongly claimed.

It can be. Either you’ve genuinely missed recording a purchase (in which case recording it lets you claim eligible credit you’d otherwise lose) or the invoice isn’t actually yours and a supplier has used your GSTIN by mistake (in which case you must not claim it). Reconciliation catches both. We identify the invoice, verify whether it belongs to you and either bring it into your books or flag it for correction, so you claim what’s genuinely yours and reject what isn’t.

If a supplier reports your invoice under an incorrect GSTIN, the credit attaches to the wrong party and doesn’t reach your 2B, so you can’t claim it until it’s fixed. The remedy is to have the supplier amend their GSTR-1 so the invoice flows to your correct GSTIN. We spot these during matching and add the supplier to your follow-up list with exactly what needs correcting, so the misdirected credit is recovered.

Recording or claiming the same invoice twice inflates your ITC and, when the system catches it, triggers a reversal, often with interest and can draw scrutiny. Reconciliation identifies duplicates on either side (books or 2B) so they’re removed before they cause an over-claim. We de-duplicate as part of the invoice-level match, keeping your claim accurate and protecting you from a reversal you’d otherwise face months later.

The government chargFour in particular, and we build each into your process. IMS now drives your GSTR-2B, so invoices must be actioned each cycle. GSTR-2B is the basis of your claim, so credit from a non-filing supplier simply isn’t available until they file. GSTR-3B liability is hard-locked from GSTR-1, so sales corrections must happen before filing. And the Section 16(4) deadline permanently lapses any eligible credit not claimed in time. Together they mean monthly reconciliation is now how you defend both cash and compliance. es no fee to register on the GST portal, registration itself is free. You only pay a professional fee for accurate filing, document verification and query handling, which we disclose upfront with no hidden charges. GST at 18% applies to the professional fee itself, not to your registration. Share your business details and we’ll give you a clear, all-inclusive quote before any work begins.

Section 16(4) sets the last date to claim input tax credit for a financial year, generally 30 November following that year or the annual-return date if earlier. Eligible credit not reconciled and claimed by then lapses permanently, straight out of your pocket. Monthly reconciliation is how you make sure every eligible credit is identified and claimed within the window. We track this deadline for you so none of your credit is lost to it.

Because your GSTR-3B liability is now auto-populated and locked from your GSTR-1 with certain tables non-editable, you can no longer quietly fix a sales figure in 3B after the fact. Any correction must be made in GSTR-1 or GSTR-1A before you file 3B. This makes the sales side of reconciliation time-critical: it has to be right before filing, not patched afterwards. We reconcile your GSTR-1 to your books first, so what locks into your 3B is already correct.

Yes, claimed ITC isn’t automatically safe. If it wasn’t genuinely in your GSTR-2B, was blocked under Section 17(5), or the supplier’s payment wasn’t made within the 180-day rule, it can still be reversed, usually with interest. This is exactly why reconciliation isn’t just data entry; it needs judgement on eligibility and matching. We verify that what you’ve claimed is genuinely supported, so a claim made today doesn’t become a liability months later.

Under GST, if you claim input tax credit on a purchase but don’t pay the supplier within 180 days of the invoice date, that credit must be reversed and can be reclaimed later once you pay. Missing this is a common, avoidable reason for a reversal with interest. Reconciliation is where these ageing unpaid invoices surface. We flag them so you either pay in time or reverse correctly, rather than being caught by the rule later.