ITC Reconciliation Advisory — GSTR-2B vs Books, Managed by Experts
CA-managed advisory that reconciles your purchase register against GSTR-2B and the ITC claimed in GSTR-3B — line by line. We flag mismatches, chase defaulting suppliers, exclude Section 17(5) blocked credit and apply Rule 42/43 reversals, so you claim every eligible rupee and stay notice-ready. 100% online.
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What Is ITC Reconciliation Advisory?
A quick, plain-language explanation before the details.
ITC reconciliation matches your purchase register against the auto-drafted GSTR-2B and the credit you claimed in GSTR-3B, so you claim every eligible rupee and avoid wrongful credit that invites interest and demand.
Under Section 16 of the CGST Act, 2017, credit is available only where you hold a valid tax invoice, have received the goods or services, the invoice is reflected in GSTR-2B (Section 16(2)(aa)), and the supplier has paid the tax and filed returns — with the claim made by 30 November of the following financial year or the annual return, whichever is earlier.
ITC is governed by the CGST Act, 2017 and Rules — including Rule 36(4) (matching), Section 17(5) (blocked credit) and Rules 42/43 (reversal of common credit) — administered by the GSTN and CBIC via gst.gov.in.
Reconciliation is an ongoing exercise: it should be run before every GSTR-3B, and a full-year true-up completed before the 30 November cut-off and GSTR-9.
Quick Facts
Is This Service Right for You?
Ideal for
- High-volume buyers with hundreds of purchase invoices and many suppliers each month
- Manufacturers & traders where ITC is a large part of working capital
- Companies & LLPs wanting a defensible, audit-ready ITC position
- Businesses whose claimed ITC differs from GSTR-2B or that received a DRC-01C notice
- E-commerce & multi-vendor sellers reconciling numerous marketplace supplies
- Firms finalising last-year ITC before the 30 Nov cut-off or GSTR-9 filing
You may need this if
- Your ITC claimed in GSTR-3B does not match your auto-drafted GSTR-2B
- You received a DRC-01C intimation flagging a 2B vs 3B mismatch
- Suppliers have not filed GSTR-1, so their invoices are missing from your 2B
- You may be claiming credit blocked under Section 17(5)
- You make both taxable and exempt supplies and must apportion common credit (Rule 42/43)
- You are approaching the 30 November cut-off with unreconciled prior-year ITC
Not sure if you need this?
Talk to an Expert →Why ITC Reconciliation Is Important
GSTR-2B is now the sole basis for input tax credit. Reconciling before every return protects working capital and keeps your claim defensible.
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01
Maximise Eligible Credit
Recover ITC you are entitled to but missed — every matched invoice is working capital saved. Invoices present in 2B but never claimed in 3B are reclaimed before they lapse.
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02
Avoid Wrongful Claims
Excess ITC over GSTR-2B is recoverable with 18% interest under Section 50. Reconciliation keeps your claim within Section 16 and defensible on scrutiny.
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03
Catch Supplier Defaults
Identify vendors who have not filed GSTR-1 or paid tax, so their invoices never appear in your 2B — then follow up before you claim.
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04
Exclude Blocked Credit
Section 17(5) items — most motor vehicles, personal use, works contract for immovable property — are correctly removed from your claim.
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05
Meet the 30 Nov Deadline
ITC for a financial year lapses after 30 November of the next FY. Timely reconciliation ensures nothing eligible is lost.
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06
Stay Notice-Ready
Clean, documented matching that stands up to GST scrutiny, audit and DRC-01C mismatch intimations — with a clear trail.
Simple, Transparent Pricing
Custom quote for your case
Fees depend on your business type and scope. Get a clear, itemised quote upfront — no hidden professional charges, government fee billed at actuals.
Who Can Apply?
Eligibility checklist
- You are a registered taxpayer claiming input tax credit in GSTR-3B
- A purchase register (books) for the period(s) to be reconciled
- Access to your auto-drafted GSTR-2B for the same period(s)
- The GSTR-3B already filed, showing ITC actually claimed
- Supplier / vendor details to follow up on missing or defaulting invoices
- A view of supplies made — to apportion common credit under Rule 42/43 where you have exempt or non-business use
Everything You Need. One Professional Team.
Data Collection
Gather your purchase register, GSTR-2B and filed GSTR-3B for the period.
2B vs Books Matching
Match invoice-by-invoice; flag entries missing in 2B, in 2B but not in books, and value/tax mismatches.
Eligibility Review
Apply Section 16 conditions and Rule 36(4); confirm each credit is validly available.
Blocked Credit Exclusion
Identify and remove Section 17(5) blocked credit from the claim.
Common Credit Apportionment
Compute reversals under Rule 42/43 where you make exempt supplies or have non-business use.
Supplier Follow-up
List defaulting suppliers and guide follow-up so missing invoices reach your 2B.
Mismatch Report
Deliver a documented reconciliation report with a correction and action list.
3B Adjustment Advisory
Advise the correct eligible ITC to claim or reverse in the next GSTR-3B.
What You’ll Receive
What Documents Are Required for ITC Reconciliation?
Requirements are grouped by your books, your GST portal data and supply/supplier details. Keep clear scans or exports (Excel/PDF) ready — everything is collected securely over WhatsApp or email, with zero office visits.
Books & Purchases
Your accounting records- Purchase register for the period(s) to reconcile
- Purchase / inward invoices (soft copies where available)
- Import & reverse-charge (RCM) purchase details
- Debit / credit notes affecting ITC
GST Portal Data
Auto-drafted & filed returns- GSTR-2B statement(s) for the same period(s)
- GSTR-3B already filed, showing ITC claimed
- GSTR-2A (for cross-check where needed)
- IMS action status (accepted / rejected / pending), if used
Supply & Supplier Details
For eligibility & follow-up- Details of exempt / non-business supplies (for Rule 42/43)
- Supplier GSTINs and contacts for follow-up
- List of assets / expenses that may be blocked u/s 17(5)
- Bill of entry for imports, where applicable
GSTR-2B is the basis
Under Section 16(2)(aa), credit not appearing in your auto-drafted GSTR-2B cannot be claimed. We reconcile against 2B, not 2A, for the ITC position.
IMS actions matter
If you use the Invoice Management System (IMS), only accepted invoices flow into 2B. Share your accept/reject/pending status so the reconciliation reflects what will actually be available.
Flag blocked & common credit
Tell us about motor vehicles, personal-use items and works-contract expenses (Section 17(5)), and any exempt supplies, so we can exclude blocked credit and apportion common credit under Rule 42/43.
Mind the 30 Nov cut-off
Prior-year ITC must be availed by 30 November of the next FY, or the annual return if earlier. Share older periods early so nothing eligible lapses.
Don’t have all the documents?
We’ll identify what your case needs →How ITC Reconciliation Works (Step by Step)
A structured, CA-managed process run before your GSTR-3B — everything online.
Data Collection
Share your purchase register, GSTR-2B and filed GSTR-3B for the period(s) to be reconciled.
2B Matching
We match your books invoice-by-invoice with GSTR-2B and flag missing, extra and value/tax-mismatched entries.
Eligibility Review
Apply Section 16 conditions and Rule 36(4); exclude Section 17(5) blocked credit and apportion common credit under Rule 42/43.
Supplier Follow-up
List suppliers who have not filed or paid, and guide follow-up so missing eligible invoices reach your 2B.
Mismatch Report
Deliver a documented reconciliation report with the correction and action list.
Adjust in GSTR-3B
Advise the correct eligible ITC to claim or reverse in the next GSTR-3B, keeping your position defensible.
How Long Does ITC Reconciliation Take?
| Stage | Expected Time |
|---|---|
| Data collection & 2B matching | Day 1–3 |
| Eligibility review (Sec 16, 17(5), Rule 42/43) | Day 3–5 |
| Mismatch report & 3B adjustment advisory | Day 5–10 |
Indicative turnaround for a single period; multi-period or high-volume reconciliation and supplier follow-up can extend it. The final scope and timeline are confirmed after a quick review of your data.
Key Dates — At a Glance
| Frequency | What Is Due |
|---|---|
| Monthly | GSTR-2B generated (~14th) — auto-drafted ITC statement · Reconcile books with 2B; act in IMS before filing · Claim only reconciled, eligible ITC in GSTR-3B (~20th) |
| Ongoing | Reverse ITC under Rule 37A if a supplier has not paid · Respond to DRC-01C 2B vs 3B mismatch intimations · Follow up defaulting suppliers for missing invoices |
| Annually | Avail prior-FY ITC by 30 November (or annual return, if earlier) · Full-year ITC true-up before books are closed · GSTR-9 / 9C reconciliation of ITC availed vs eligible |
| Event-Based | Apportion common credit under Rule 42/43 on exempt supplies · Review ITC on imports and reverse-charge (RCM) purchases · Reconcile after any large or one-off capital purchase |
Dates are indicative and may change with government notifications. Our team tracks every deadline so you never miss a filing.
Doing It Yourself vs TaxClue
Doing It Yourself
- Match hundreds of purchase invoices with GSTR-2B by hand
- Track which suppliers have not filed GSTR-1 or paid tax
- Correctly apply Section 16 and Rule 36(4) conditions
- Identify every Section 17(5) blocked-credit item
- Compute common-credit reversals under Rule 42/43
- Interpret a DRC-01C mismatch intimation and respond
- Risk over-claiming ITC and drawing interest and demand
With TaxClue
- Invoice-level 2B vs books vs 3B matching done for you
- Defaulting suppliers flagged with follow-up guidance
- Section 16 and Rule 36(4) applied correctly
- Section 17(5) blocked credit excluded
- Rule 42/43 common-credit reversal computed
- DRC-01C mismatches explained or reconciled
- A defensible, notice-ready ITC position
Skip the guesswork.
Let an expert handle it →Common Mistakes That Delay Your Application
TaxClue reviews your documents before filing to reduce avoidable errors.
What ITC Compliance Applies Around the Year?
Monthly
- GSTR-2B generated (~14th) — auto-drafted ITC statement
- Reconcile books with 2B; act in IMS before filing
- Claim only reconciled, eligible ITC in GSTR-3B (~20th)
Ongoing
- Reverse ITC under Rule 37A if a supplier has not paid
- Respond to DRC-01C 2B vs 3B mismatch intimations
- Follow up defaulting suppliers for missing invoices
Annually
- Avail prior-FY ITC by 30 November (or annual return, if earlier)
- Full-year ITC true-up before books are closed
- GSTR-9 / 9C reconciliation of ITC availed vs eligible
Event-Based
- Apportion common credit under Rule 42/43 on exempt supplies
- Review ITC on imports and reverse-charge (RCM) purchases
- Reconcile after any large or one-off capital purchase
Penalties & Consequences
What is at stake if you do not comply
- ITC claimed in excess of GSTR-2B triggers a DRC-01C intimation and reversal with 18% interest under Section 50
- Claiming Section 17(5) blocked credit invites reversal, interest and demand on scrutiny
- Supplier non-filing keeps invoices out of your 2B, so eligible credit is lost until followed up
- Missing the 30 November cut-off lets prior-year ITC lapse permanently
- No documented trail leaves you unable to answer a DRC-01C or scrutiny notice
Regulatory Updates 2025–26
- 2025: The Invoice Management System (IMS) lets recipients accept, reject or keep invoices pending to finalise GSTR-2B and eligible input tax credit.
- 2025: DRC-01B (GSTR-1 vs 3B liability) and DRC-01C (ITC vs GSTR-2B) auto-intimations must be answered before further filing.
Why Businesses Choose TaxClue
CA / CS Team
Qualified Chartered Accountants and Company Secretaries with deep GST and ITC expertise.
End-to-End
From data collection to a documented mismatch report — fully managed, minimal effort from you.
Fast Turnaround
Committed timelines with proactive status updates — reconciled before your next GSTR-3B.
Documented Deliverable
A clear reconciliation report and defensible ITC position, not just verbal advice.
100% Online
Everything over WhatsApp / email — no office visits required.
Post-Service Support
Guidance continues after the report — including help responding to mismatch notices.
Your Documents Deserve Professional Care
- Documents handled by professionals under confidentiality
- Access limited to the team working on your file
- Communication over secure digital channels
- Documents retained only as long as needed for compliance
Frequently Asked Questions
What is ITC reconciliation in GST?
What is the difference between GSTR-2B and GSTR-3B for ITC?
What are the conditions to claim ITC under Section 16?
What is blocked credit under Section 17(5)?
What are Rule 42 and Rule 43 reversals?
What happens if I claim more ITC than shown in GSTR-2B?
By when must ITC for a financial year be claimed?
What if my supplier has not filed their return?
Can I claim ITC on imports and reverse-charge (RCM) purchases?
What is a DRC-01C intimation and how does reconciliation help?
How often should ITC be reconciled?
Do I need to visit any office for ITC reconciliation?
What is the difference between GSTR-2A and GSTR-2B for ITC reconciliation?
How do I reconcile ITC on imports and reverse-charge supplies?
Who must reverse ITC under Rule 37A?
What is the penalty for claiming excess ITC?
How long should ITC reconciliation records be kept?
Official Sources & Legal References
Every regulatory reference on this page — sections, rules, timelines and the ITC basis — is drawn from primary law and official government sources. Verify them directly:
- GST Portal — GSTR-2B, GSTR-3B & IMSOfficial portal for the auto-drafted 2B statement, return filing and the Invoice Management System
- CGST Act, 2017 — Section 16 & 17(5)Conditions for availing ITC (Section 16) and blocked credit (Section 17(5)) · CBIC-GST
- CBIC — Notifications & CircularsCGST Rules 36/37A/42/43 and clarifications on ITC and reconciliation
- GST Portal — ITC & Returns GuidesOfficial step-by-step guidance on ITC, GSTR-2B and return filing
Related Guides
How ITC Matching in GSTR-2B Works
Read guide ArticleSection 17: Blocked ITC
Read guide ArticleSection 18: ITC in Special Circumstances
Read guide ArticleGSTR-1 vs GSTR-3B Reconciliation
Read guide ArticleInvoice Management System (IMS)
Read guide ArticleSection 44: GSTR-9 Annual Return
Read guide ArticleSection 73–74: Demands & SCN
Read guideITC Reconciliation Advisory Resources — All Free
Reconcile Your ITC Before the Next GSTR-3B
CA-managed ITC reconciliation — 2B vs books matching, Section 17(5) exclusion, Rule 42/43 reversals, supplier follow-up and a documented mismatch report. Consultation, no obligation, zero hidden charges.
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