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GST Reconciliation

GST ITC Mismatch Resolution

ITC mismatches between your purchase register and GSTR-2A/2B lead to denied credits, interest demands, and scrutiny notices. Our CA team identifies every discrepancy, communicates with suppliers for correction, and files the appropriate forms to recover blocked ITC - typically within 10-20 business days.

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mismatchMismatch Detection
recoveryITC Recovery
supplierSupplier Follow-up
CA-Led Analysis 500+ Mismatches Resolved Supplier Follow-up Included GST Notice Support

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Upload your GSTR-2A/2B and purchase register. We'll identify mismatches and provide a recovery plan within 48 hours.

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OverviewKey FactsEligibilityDocumentsProcessTimelineFeesBenefitsFAQs
Key facts

The key facts, in one place

Everything a founder usually has to piece together from five different pages, in one place.

Avg. Mismatch Recovery
3-12% of ITC claimedThrough supplier correction
Report Delivery
48 hoursAfter document receipt
Resolution Timeline
10-20 business daysPer mismatch batch
Professional Fee
Rs. 3,000 - 25,000One-time project
Supplier Follow-up
IncludedWritten communication managed
Form Filing
ITC-01 / RFD-01As applicable

What is an ITC Mismatch?

An ITC mismatch occurs when the Input Tax Credit you have claimed in your books or GSTR-3B does not match the credit reflected in your GSTR-2A or GSTR-2B. Common causes include: supplier filed incorrect GSTR-1, supplier did not file at all, invoice value or GSTIN mismatch, debit/credit notes not reflected, or your own data entry errors.

Mismatches can be classified as: (a) Credit not reflected in GSTR-2A/2B - supplier filing issue; (b) Amount mismatch - invoice value or GST amount differs; (c) GSTIN mismatch - supplier used wrong GSTIN; (d) Date mismatch - invoice date falls outside the relevant period.

The GSTN's matching engine flags these discrepancies when the difference exceeds Rs. 10,000 in a financial year (under Rule 36(4) for unmatched invoices). Persistent mismatches trigger scrutiny notices under Section 73, where penalties can range from 10% to 100% of the disputed tax.

Resolution Approaches

How mismatch resolution differs between self-service and professional support.

Self-Service

Manual spreadsheet comparison

CA-Managed Resolution

Automated tool + CA review of all invoices

AspectSelf-ServiceCA-Managed Resolution
Mismatch Detection✕ Manual spreadsheet comparison✓ Automated tool + CA review of all invoices
Supplier Communication✕ Direct follow-up (informal)✓ Formal written communication tracked and documented
Form Filing✕ Self-filed, error-prone✓ CA-filed ITC-01/RFD-01 with complete documentation
Scrutiny Defense✕ Weak paper trail✓ Audit-ready correspondence and correction records
Recovery Rate✕ 30-40% of mismatches resolved✓ 70-85% of mismatches resolved

Bizeneed visual guide

GST ITC Mismatch Resolution

Resolve GST ITC mismatches between your books and GSTR-2A/2B. Expert reconciliation to recover missing ITC and fix discrepancies with CA-verified accuracy. Reduce penalty exposure.

1

Understand requirement

2

Prepare documents

3

Complete filing

Client

Bizeneed

Result

Eligibility

Who Needs ITC Mismatch Resolution?

Any GST-registered business with procurement activity should periodically audit for ITC mismatches. Certain profiles face higher risk.

  • Businesses with 100+ suppliers per month where supplier GST compliance cannot be individually verified
  • E-commerce sellers sourcing from multiple small vendors with inconsistent GST filing habits
  • Manufacturers with complex multi-tier supply chains where intermediate supplier errors cascade downstream
  • IT/ITES companies claiming credits on overseas services, software subscriptions, and vendor payments across borders
  • Businesses that received a GST scrutiny notice or Form GST ASMT-10 (show-cause notice) related to ITC claims
  • Importers and SEZ units dealing with customs duties, IGST, and multi-currency vendor invoices
  • Businesses transitioning from composition scheme to regular GST needing a clean ledger baseline
  • Any taxpayer whose GSTR-2B shows fewer credits than their purchase register indicates

By entity type

EntityGoverned byEligible
ProprietorshipGST Act, 2017✓ Yes
Partnership FirmGST Act, 2017✓ Yes
Private LimitedGST Act, 2017✓ Yes
LLPGST Act, 2017✓ Yes
Public LimitedGST Act, 2017✓ Yes
OPC / HUFGST Act, 2017✓ Yes
Documents

Documents Required

Common to every entity

  • GSTIN and GST Registration CertificateMandatory
  • GSTR-2A / GSTR-2B (relevant period)Mandatory
  • Purchase register / inward supply statementMandatory
  • GSTR-3B filed for the relevant periodMandatory
  • Supplier invoices where mismatch is identifiedMandatory
  • Any GST notice or scrutiny order received
  • Payment proof to suppliers (bank statements)
  • Authorization letter from authorized signatory
Process

How Mismatch Resolution Works

A structured process from detection to credit recovery, handled end-to-end by our CA team.

1

Document Collection & Upload

You share your GSTR-2A/2B, purchase register, and GSTR-3B for the relevant period. Our portal provides a secure upload link. We confirm receipt within 2 hours.

Client + onboarding team

2

Automated Mismatch Detection

Our reconciliation engine scans every invoice line. We identify: missing credits in GSTR-2B, amount mismatches, GSTIN errors, debit/credit note discrepancies, and invoices blocked under Section 36(4). You receive a categorized mismatch report.

Automated engine + CA verification

3

Supplier Correction & Follow-up

For each mismatch, we determine whether the supplier's GSTR-1 needs correction. We send formal written communication to suppliers requesting correction of their GSTR-1. All correspondence is tracked in a supplier action log.

GST reconciliation specialist

4

Form Filing (ITC-01 / RFD-01)

Where supplier correction is not possible (e.g., supplier ceased filing), we file Form GST ITC-01 to avail credit under the 'addition of credit not availed earlier' provision. For excess ITC reversal corrections, we use Form GST RFD-01.

CA for form preparation and filing

5

Credit Recovery & Confirmation

After filing, we monitor the GST portal for credit addition to your ITC ledger. Once confirmed, we update your ledger and share a reconciliation certificate. We also update your purchase register to prevent recurrence.

Relationship CA

Timeline

Expected Timeline

Most mismatches are resolved within 2-3 weeks. Complex cases with supplier non-cooperation take longer.

1

Day 1-2

Document receipt and automated mismatch detection - categorized report delivered to client

2

Day 3-5

CA review of mismatches - prioritization by recovery value and risk level

3

Week 2

Supplier communication phase - formal letters sent, response period of 15 days

4

Week 3-4

Form filing (ITC-01/RFD-01) for recoverable credits - portal confirmation within 15 days of filing

5

Ongoing

Monthly monitoring to ensure corrected credits appear in GSTR-2B and are properly utilized

StageDuration
Day 1-2Document receipt and automated mismatch detection - categorized report delivered to client
Day 3-5CA review of mismatches - prioritization by recovery value and risk level
Week 2Supplier communication phase - formal letters sent, response period of 15 days
Week 3-4Form filing (ITC-01/RFD-01) for recoverable credits - portal confirmation within 15 days of filing
OngoingMonthly monitoring to ensure corrected credits appear in GSTR-2B and are properly utilized
Pricing

Pricing & Fees

Fees depend on the number of invoices reviewed, number of mismatches identified, and complexity of supplier follow-up. Government fees for ITC-01/RFD-01 filings are nil.

Quick Check

One-time mismatch audit

Rs. 3,000
  • Up to 100 invoices reviewed
  • Mismatch report with categorization
  • 1 revision cycle
  • Email support
Choose Quick Check
Most Popular

Recovery

Most popular - full resolution

Rs. 8,000
  • Up to 500 invoices reviewed
  • Full mismatch report
  • Supplier follow-up (up to 10 suppliers)
  • ITC-01 / RFD-01 filing
  • Recovery confirmation tracking
  • Dedicated CA
Choose Recovery

Enterprise

For large-volume taxpayers

Custom quote
  • Unlimited invoices
  • Multi-GSTIN reconciliation
  • Unlimited supplier follow-up
  • Scrutiny notice support
  • Quarterly compliance reviews
  • Priority CA + direct line
Choose Enterprise

Full fee breakdown

ParticularsGovernment feeProfessional fee
GST Government Fee (ITC-01 / RFD-01)NilIncluded in plan
Additional Invoice Review (beyond plan)NilRs. 15 per invoice
Additional Supplier Follow-upNilRs. 250 per supplier
GST Scrutiny RepresentationAs per rulesRs. 10,000 per appearance

Find Your Mismatch Resolution Plan

Tell us about your mismatch situation and we'll recommend the right approach.

What type of mismatch are you facing?

Approximately how many invoices have mismatches?

What is your urgency?

Benefits

Benefits of Professional Mismatch Resolution

Recover Blocked ITC

  • Recover 3-12% of your claimed ITC that is currently blocked due to supplier filing errors or data mismatches.(recovery)

Avoid Penalties & Interest

  • Resolving mismatches proactively prevents scrutiny notices under Section 73 and interest demands under Section 50.(penalty-avoidance)

Supplier Accountability

  • We manage formal written follow-up with suppliers to correct their GSTR-1 filings, so you don't have to.(supplier)

Audit-Ready Paper Trail

  • Every mismatch is documented with the corrective action taken, creating a complete audit trail for GST officers.(audit)

Continuous Monitoring

  • Monthly mismatch checks ensure new mismatches are caught within days, not months. Small issues don't become big ones.(monitoring)
Common failure points

Common Mismatch Resolution Mistakes

Waiting for annual return to fix mismatches

Mismatches should be resolved monthly. The 30-day GSTR-2B amendment window is the best time to act.

Relying solely on GSTR-2A (not GSTR-2B)

GSTR-2A is dynamic and can show corrections after you file. Always reconcile against GSTR-2B.

Not tracking supplier amendment history

We maintain a supplier amendment log to identify repeat filers who regularly file incorrect GSTR-1 data.

Ignoring debit/credit note mismatches

Debit/credit notes after GSTR-1 filing create cascading mismatches. We track these and file corrective GSTR-1 where possible.

Not filing ITC-01 before the annual return deadline

ITC-01 must be filed before filing GSTR-9. We set calendar reminders and file proactively.

Every rejection above has a fix - most come down to how the innovation note is written, not the business itself. Most applicants don't know that until after the rejection.

If you have already been rejected, or want to make sure it does not happen, the 15-minute call below is the fastest path.

Why Bizeneed

Why Choose Our Mismatch Resolution Service

CA-led team with deep expertise in GST reconciliation and ITC provisions
Proprietary reconciliation engine that scans every invoice line automatically
Formal supplier follow-up managed end-to-end - you don't chase anyone
ITC-01 / RFD-01 filing with complete supporting documentation
70-85% mismatch recovery rate vs 30-40% in self-service
Monthly monitoring subscription available to prevent future mismatches
Transparent per-invoice pricing - no hidden charges
FAQ

Frequently asked questions

ITC mismatches occur when your claimed credit doesn't match GSTR-2A/2B. Common causes: supplier didn't file GSTR-1, supplier filed with wrong GSTIN/invoice value, debit/credit notes not communicated, or your purchase register has data entry errors. Under Rule 36(4), invoices above Rs. 10,000 that don't appear in GSTR-2B cannot be used to claim ITC.

Download your GSTR-2B and compare it against your purchase register. For each invoice, check: (1) supplier GSTIN matches, (2) invoice number and date match, (3) invoice value and GST amount match. Mismatches in any field create a credit discrepancy. Our automated tool does this in minutes.

No, not until the supplier files. Under Section 16(2)(f), supplier filing is a mandatory condition. You can, however, claim the ITC in a subsequent month once the supplier files. File Form GST ITC-01 to add the credit when it becomes available.

Form GST ITC-01 is used to add credits that were not availed earlier due to supplier late filing, amendments, or other valid reasons. It is filed under Rule 42A and must be submitted before the due date of the annual return (GSTR-9).

Unresolved mismatches can lead to: (a) denial of ITC in GST audits, (b) interest demands at 24% per annum under Section 50, (c) penalties under Section 73 (10% of tax) or Section 74 (100% in case of fraud), and (d) show-cause notices under Section 61/62/64.

Yes, if the supplier corrects their GSTR-1 within the same financial year, the corrected credit appears in your GSTR-2B and can be claimed. If correction happens in the next financial year, use Form GST ITC-01 to avail the credit within the due date of GSTR-3B for September of the next year.

Rule 36(4) mandates that for invoices exceeding Rs. 10,000 in value, ITC can only be claimed if the invoice details appear in the supplier's GSTR-1 (and therefore your GSTR-2B). Invoices below this threshold have some relaxation, but matching is still recommended for audit safety.

It depends on the cause: (a) Supplier GSTR-1 amendment: 7-15 days after supplier responds; (b) ITC-01 filing: 15 days for GSTN processing; (c) Debit/credit note correction: 10-20 days. Total resolution typically takes 10-20 business days per batch.

If the supplier doesn't correct their GSTR-1, we file Form GST ITC-01 under Rule 42A with supporting evidence of your purchase (invoice, payment proof, delivery challan). We also document the supplier's non-cooperation for audit purposes. In extreme cases, you may need to approach the jurisdictional GST officer.

Our clients typically recover 3-12% of their total ITC claims through systematic mismatch resolution. In high-volume procurement environments, recovery can be as high as 15%. The exact amount depends on supplier compliance rates in your industry.

Yes. If you have received a GST scrutiny notice or Form GST ASMT-10 for denied ITC, our CA team can draft and file a comprehensive reply with reconciliation records, supplier correspondence, and supporting documentation. This is billed separately at Rs. 10,000 per appearance.

ITC mismatch is a line-by-line invoice comparison between your books and GSTR-2A/2B, done monthly. GSTR-9 reconciliation is an annual exercise that compares audited financials with GSTR-9 figures. Both are essential but serve different purposes. We handle both.

Yes, for small businesses with few invoices, manual comparison may suffice. However, for businesses with 50+ invoices per month or multiple GSTINs, the complexity of supplier amendments, Rule 42/43 reversals, and form filings makes professional support cost-effective - especially when recovery typically exceeds the service fee.

Our Quick Check plan at Rs. 3,000 covers up to 100 invoices with a mismatch report. The Recovery plan at Rs. 8,000 covers up to 500 invoices with full resolution including supplier follow-up and form filing. Enterprise plans are custom-quoted based on volume. Government fees for ITC-01/RFD-01 are nil.

Implement monthly reconciliation within 5 days of GSTR-2B publication, maintain a supplier compliance scorecard, set up automated alerts for supplier non-filing, and use the GSTN API for real-time matching. Our ongoing monthly monitoring service handles all of this for you starting at Rs. 2,500/month.

CG

Written by CA-led GST Reconciliation Team, Chartered Accountants specializing in GST audits and ITC compliance · Reviewed by CA Priya Sharma, FCA, GST Practitioner, 8 years

Last updated 2026-09-06

Sources

  • GST Portal (www.gst.gov.in)
  • CBIC - GST Law & Rules
  • CGST Act, 2017 - Sections 16, 17, 50, 73, 74

This content is for informational purposes only and does not constitute legal or tax advice. Consult a qualified CA for advice specific to your situation.

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GST Annual Return

GSTR-9 and GSTR-9C.

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GST Notice Response

Scrutiny and show-cause replies.

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GST Penalty Calculator

Calculate penalty exposure.

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Guides

  • GSTR-2B Reconciliation Checklist
  • How to File Form GST ITC-01

Have mismatches to resolve?

Upload your GSTR-2A/2B and we'll deliver a mismatch report within 48 hours.

Have mismatches to resolve?

Upload your GSTR-2A/2B and we'll deliver a mismatch report within 48 hours.

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