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Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Before claiming GST input tax credit (ITC), verify that the purchase is for business, the goods or services were received, you hold the prescribed tax document, the credit is not blocked or partly attributable to non-business or exempt use, and the claim is within the statutory time limit. Then reconcile your books with GSTR-2B, investigate mismatches, track supplier payments, and report eligible credit and required reversals in GSTR-3B. GSTR-2B helps with the review; it does not by itself prove that every listed amount is legally eligible.
Start with the legal eligibility checks
Under sections 16 and 17 of India’s CGST Act, a purchase-register entry or a figure in a GST statement is not enough on its own. Assess each purchase against the transaction facts and applicable law before including it in a claim. The GST Portal’s GSTR-2B FAQ also cautions that appearing as available does not establish every condition of eligibility.
- Business use: The input must be used or intended to be used in the course or furtherance of business. Identify personal or other non-business use rather than automatically claiming all the tax.
- Receipt: Confirm that the goods or services were received. For goods delivered in lots or instalments, entitlement is tied to receipt of the final lot.
- Prescribed document: Hold the tax invoice, debit note or other document prescribed for that transaction.
- Restrictions and apportionment: Screen for section 17 blocked-credit categories and any applicable exception. Where common inputs serve both business and non-business purposes, or taxable and exempt supplies, claim only the attributable eligible portion.
- Time limit: Check the section 16(4) cutoff for the relevant invoice or debit note and any applicable exception or transitional relief.
These are transaction-level checks. A purchase can be present in a statement and still fail another eligibility condition.
Validate each purchase document and receipt
Match the document to the underlying purchase and to evidence that the supply was received. Check the supplier and recipient identities and GSTINs, document number and date, description, value, tax charged, and place of supply where relevant. Useful support may include the purchase order, delivery or service-acceptance record, and accounting entry; retain what demonstrates the actual transaction.
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If goods arrive in instalments, record when the final lot is received. Do not treat a partial delivery as satisfying the receipt condition for the entire supply where the Act ties entitlement to the final lot.
Reconcile your books with GSTR-2B
GSTR-2B is an auto-drafted, read-only statement based on supplier and other reported information, including ISD and import-related data. It is intended to inform GSTR-3B; the recipient does not file or edit GSTR-2B. Use the statement as a reconciliation input alongside the purchase register and supporting documents, not as a replacement for them. See the GST Portal’s GSTR-2B FAQ.
- Compare purchase-register and statement records using supplier GSTIN, invoice number and date, taxable amount and tax, and place of supply where applicable.
- Investigate invoices missing from GSTR-2B, amended or duplicate records, and credit notes. Confirm the underlying document and transaction before deciding how the difference affects the claim.
- For missing or incorrect supplier reporting, ask the supplier to correct its reporting and check the relevant later statement. The recipient cannot change the read-only GSTR-2B entry.
- Check that each document has been claimed only once. Account for credit notes, amendments, and any reversal required by the Act and rules.
- Record the outcome and the reason for any adjustment so the return figure can be traced back to the source documents.
A document’s absence or a “not available” indicator is not a complete legal analysis either. GSTR-2B includes a not-available section for specified situations, including section 16(4) time-barred documents and certain place-of-supply cases. Other legal reasons may also affect availability without necessarily being generated by the system. Review the underlying facts and law rather than relying on a portal indicator alone.
Handle restricted, exempt-use and reverse-charge cases separately
Before aggregating eligible credit, isolate purchases that need special treatment. Check section 17 blocked-credit categories and any specific statutory exception against the actual transaction. For inputs used partly for exempt supplies or non-business purposes, apportion the credit and claim only the qualifying share.
Keep reverse-charge supplies on a separate review track. The ordinary GSTR-2B presentation does not remove the obligation to pay tax under reverse charge. Review the liability and any related ITC under the applicable rules and transaction facts rather than treating the statement as proof that the reverse-charge step is complete.
Track supplier payments against the 180-day condition
For covered purchases, track whether the value of the supply plus tax is paid to the supplier within 180 days from the invoice date. Where the payment condition applies and the amount remains unpaid, the prescribed reversal or output-liability treatment and interest rules may apply. Credit may be re-availed after payment as prescribed. This condition excludes supplies on which tax is payable under reverse charge. See the CBIC CGST Rules and the relevant CGST Act provisions.
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Maintain a payable-level record of invoice date, due or payment dates, amounts paid, balance outstanding, and any resulting return adjustment. That makes it easier to identify an approaching 180-day point and support any later re-availment.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Protect the section 16(4) claim deadline
The general section 16(4) wording reflected in CBIC Circular 237/31/2024-GST bars taking credit after 30 November following the end of the financial year to which the invoice or debit note pertains, or furnishing the relevant annual return, whichever is earlier. This is the general rule, not a blanket answer for every past period: the circular discusses retrospective relief for specified cases, and amendments or exceptional facts may change the analysis. Check the applicable period and circumstances against the CBIC circular and current law; do not rely on older general guidance that gives September as the cutoff.
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Keep a deadline tracker by financial year and document type. Supplier reporting dates can affect when a document appears in GSTR-2B, but they are not the recipient’s ITC claim deadline. Ordinary portal guidance gives the 11th of the succeeding month for monthly GSTR-1 filers and the 13th after quarter-end for quarterly filers, subject to extensions or changes. See the GST Portal’s GSTR-1 guidance.
Review GSTR-3B before filing and retain an audit trail
Before filing, compare GSTR-3B’s auto-populated figures with your reconciled records. The GST Portal says auto-populated values are editable, so support any change with the reconciliation and eligibility decision. Report eligible ITC and required reversals in the appropriate tables and review reverse-charge liability separately.
Keep the underlying tax document, evidence of receipt, supplier follow-up, reconciliation result, eligibility and apportionment decision, payment status, and return treatment together. A reviewer should be able to trace each claimed amount from the document to its treatment in the return.
Quick Recap
Monthly close checklist
- Collect prescribed tax documents and confirm supplier and recipient details, values, tax, and relevant place of supply.
- Match each document to evidence that the goods or services were received, including final-lot receipt where applicable.
- Identify business, non-business, exempt-use, blocked-credit, and reverse-charge cases; calculate only the eligible attributable amount.
- Reconcile the purchase register and books to GSTR-2B; investigate missing, amended, duplicate, and credit-note records.
- Follow up supplier reporting errors and review later statements without treating GSTR-2B as the final eligibility test.
- Check duplicate claims, reversals, supplier-payment status under the applicable 180-day rule, and the section 16(4) deadline.
- Compare the reconciled result with GSTR-3B, review auto-populated values and reverse-charge liability, and retain support for adjustments.
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