GSTR-2A Reconciliation is the structured, month-on-month exercise of comparing the input tax credit (ITC) reflected in a taxpayer's auto-generated GSTR-2A / GSTR-2B on the GST portal with the ITC booked in the purchase register and claimed in GSTR-3B. GSTR-2A is a dynamic statement that updates continuously as vendors file GSTR-1, while GSTR-2B is a static, period-locked version used under Rule 36(4) and Section 16(2)(aa) to determine whether a taxpayer can legitimately claim input credit on an invoice in a given month. Reconciliation between the two, the purchase register, and the tax paid is the single most important control in modern GST compliance.
The stakes are high. An unreconciled GSTR-2A / 2B regularly leads to ITC denial, interest under Section 50, recovery notices under Section 73 / 74, large mismatched demands under Rule 88C / 88D, and strained vendor relationships. On the other hand, a disciplined monthly reconciliation process identifies missing invoices, fake invoices, duplicate claims, wrongly availed ITC, and vendors who have defaulted in filing GSTR-1 — all before the problem lands at the taxpayer's door. For medium and large businesses, 2A / 2B reconciliation is no longer an optional finance-team exercise; it is the primary defence against ITC loss and future GST litigation.
We offer end-to-end GSTR-2A Reconciliation Services — from automated data extraction of GSTR-2A and 2B from the GST portal, line-level matching with the purchase register and books, identification and classification of mismatches, vendor-wise follow-up, monthly GSTR-3B ITC working, reclaim of past ITC within the statutory window, and year-end Table 8 (GSTR-9) build-up — so that every rupee of eligible input tax credit is captured, every ineligible credit is clearly reversed, and your ITC position is fully audit-ready through the year.
Dynamic, ever-updating statement of inward supplies that refreshes continuously as vendors file / amend GSTR-1.
Static, period-locked statement generated on the 14th of the next month — the primary document for claiming ITC.
Invoice-level matching of GSTR-2A / 2B with the purchase register and books on multiple parameters.
Classification of mismatches into clear, actionable buckets — each with a defined remediation path.
Monthly decisions on ITC to claim, reverse, or defer — with clear vendor-wise follow-up action.
Purchase invoice present in books but not appearing in GSTR-2B because the vendor has not filed GSTR-1.
Invoices appearing in GSTR-2B that are not in the books — suggesting booking delay or fake invoice issue.
Invoice present in both but with different taxable value, rate, or tax amount reported by the vendor.
Invoice issued with wrong recipient GSTIN leading to ITC appearing in another branch / entity's 2B.
CN / DN reported by vendor but not booked, or booked but not appearing in 2B / 2A properly.
Invoices in 2B where credit is blocked under Section 17(5) or restricted under Rule 42 / 43.
Vendor has filed GSTR-1 but not GSTR-3B — triggering Rule 37A reversal and potential ITC loss.
Same invoice claimed twice — in different months or across branches — inflating overall ITC.
Automated monthly matching of GSTR-2B with purchase register before each GSTR-3B filing.
Deeper 2A-based review each quarter / year to catch late-filed vendor invoices and dynamic updates.
Vendor-level dashboards showing missing, value-mismatched, and CN / DN-affected invoices.
Drafting standard vendor follow-up emails and escalation letters for persistent non-compliance.
Review of ITC under Section 16, Section 17(5), and Rule 42 / 43 to strip out ineligible credits.
Tracking payment to vendors within 180 days and vendor tax payment to avoid forced reversals.
Drafting structured replies to Rule 88C / 88D notices in Form DRC-01B / 01C on mismatch issues.
Annual Table 8 working for GSTR-9 reconciliation with 2A / 2B, GSTR-3B, and books ITC.
Factories and producers with large, complex input tax credit pools across multiple vendors.
Wholesalers and distributors with thousands of invoices per month where ITC drives margins.
Marketplace sellers dealing with multiple vendors, courier partners, and platform commissions.
Corporates with 5+ GSTINs needing structured, centralised 2A / 2B reconciliation.
Exporters where refunds are directly linked to accurate, defensible ITC working.
Taxpayers receiving Rule 88C / 88D notices on GSTR-1 vs 3B or 2B vs 3B mismatches.
Businesses under GST audit or assessment where ITC mismatches are key issues on the notice.
Target / acquirer flagging ITC risk during tax due diligence and needing clean 2A / 2B workings.
Downloading 2A / 2B from the GST portal and pulling purchase register from books / ERP.
Matching each invoice by GSTIN, invoice number, date, value, and tax amount using rules.
Categorising mismatches into missing, excess, value, GSTIN, and CN / DN buckets.
Deciding ITC to claim, reverse, or defer, and drafting vendor follow-up communication.
Delivering monthly MIS, reconciliation dashboard, and audit-ready working papers.
Partner with our specialists for end-to-end GSTR-2A / 2B Reconciliation Services — monthly 2B matching, vendor follow-up, Rule 37A tracking, DRC-01C defence, and Table 8 preparation — all under one roof.
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