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Published on:

October 2, 2025

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Cost Audit & GST: MCA Non-Compliance & SCN Guide

Why Cost Audit Provisions Matter

Cost audits are a regulation, a mandate that goes beyond compliance. Indian industry has more than one regulator:

MCA (Ministry of Corporate Affairs) under the Companies Act, 2013 mandates cost account maintenance and audit in some industries.

GST authorities (CBIC) cause indirect tax compliance by reconciliation, returns, and cross-verifying cost accounts.

SCN (Show Cause Notice) proceedings are launched by authorities on the basis of suspected misreporting, undervaluation, or non-compliance.

All three of these—GST scrutiny, SCN proceedings, and MCA cost audit—are inter-dependent aspects of a compliance regime. Dis-compliance with one will naturally generate problems with the other two.

Why Businesses Should Care

Compliance Area	Importance	Risk of Non-Compliance
MCA Cost Audit (Sec 148, Companies Act, 2013)	Ensures transparency in pricing, production cost, and resource use.	Heavy penalties for company & officers; MCA prosecution.
GST Records & Audit	Determines tax liability, ITC eligibility, and reconciles with cost sheets.	Denial of ITC, additional GST demand, interest & penalties.
SCN (Show Cause Notice)	Triggered by discrepancies in GST returns, MCA filings, or cost records.	Extended litigation, penalty up to 100% of tax, reputational loss.

MCA Cost Audit Provisions – Companies Act, 2013

Under Section 148 of the Companies Act, 2013, some companies are required to keep cost records and have them audited. MCA governs such provisions under the Companies (Cost Records and Audit) Rules, 2014, as amended from time to time.

Applicability of Cost Records

Criteria	Rule	Impact
Regulated sectors (e.g., petroleum, electricity, telecom, drugs, fertilizers, defence equipment)	Rule 3(1)(A)	Must maintain cost records if turnover ≥ ₹35 crore in preceding FY.
Non-regulated sectors (e.g., machinery, textiles, cement, metals, etc.)	Rule 3(1)(B)	Cost records mandatory if turnover ≥ ₹100 crore in preceding FY.

Applicability of Cost Audit

Criteria	Requirement	Audit Obligation
Regulated sectors	If overall turnover ≥ ₹50 crore and turnover from regulated products ≥ ₹25 crore.	Cost audit compulsory.
Non-regulated sectors	If overall turnover ≥ ₹100 crore and turnover from such products ≥ ₹35 crore.	Cost audit compulsory.

Who Conducts the Audit?

A Cost Accountant in practice (CMA) only if appointed by the Board & ratified by the shareholders.
Auditor files CRA-3 (Report of Cost Audit) and company files. CRA-4 (with MCA).

Penalties for Non-Compliance (MCA Side)

Non-Compliance	Penalty on Company	Penalty on Officer in Default
Failure to maintain cost records	₹25,000 – ₹5,00,000	₹10,000 – ₹50,000 + imprisonment up to 1 year.
Failure to conduct cost audit	Same as above	Same as above.
Incorrect/fraudulent records	Higher penalties + prosecution under Sec 447 (fraud).	Criminal liability possible.

GST Compliance & Cost Audit - What’s the link?

MCA (Ministry of Corporate Affairs) and GST may be ministries, but their compliance mechanisms converge when audited, investigated, or SCN (Show Cause Notice) proceedings.

How GST and Cost Audit Records Interlink

Compliance Area	MCA Requirement	GST Requirement	Linkage / Risk
Turnover reporting	CRA-4 filing (cost audit report) must disclose segment-wise turnover.	GST GSTR-1 / GSTR-3B requires outward supply reporting.	Mismatch in turnover figures → GST dept. issues SCN.
Input costs	Cost records must include material, labor, and overhead cost sheets.	ITC claims under GST must match purchase invoices (GSTR-2B).	Mismatch between cost sheet & ITC → denial of ITC or audit objections.
Valuation of goods	MCA cost records maintain per-unit cost of production.	GST requires valuation under Section 15 of CGST Act.	Under/overvaluation → GST anti-profiteering or SCN risk.
Related-party transactions	Disclosed in cost audit reports.	GST requires related-party invoices with arm’s length value.	Cross-verification possible → transfer pricing-type disputes.

Use of Cost Audit Data by GST Officers

1. Cost audit reports are sometimes required in GST audit/SCN proceedings.

2. Assists officers to determine whether:

Sales reported in GST match cost records.
Attributed ITC matches actual input utilization.
Exempted v/s taxable supply bifurcation matches cost apportionment.

Discrepancies Often Observed

Issue	Example	Consequence
Turnover mismatch	CRA-4 shows ₹120 Cr turnover, GSTR-1 shows ₹110 Cr.	GST SCN for under-reporting sales.
Wrong classification	Dairy whitener shown as milk (exempt) in GST, but cost records treat as manufactured good.	GST demand for 18% + penalty.
ITC misallocation	ITC claimed on cement used in factory building.	Blocked ITC under Sec 17(5).
Cost vs GST variance	Cost sheet shows ₹80/kg, invoice shows ₹60/kg.	GST valuation objection, demand of tax on difference.

SCN (Show Cause Notices) & Non-Compliance Risks

When companies don't match MCA cost audit reports with GST compliance, tax authorities serve Show Cause Notices (SCNs). They serve SCNs requesting reasons in the event of mismatches, under-reporting, or misclassification.

What is an SCN?

A Show Cause Notice (SCN) is a statutory notice by GST officers under Section 73 or 74 of the CGST Act, requesting reasons for:

Tax not paid, or
Tax short-paid, or
Incorrect ITC has been utilized,or
Incorrect refunds have been issued.

Non-response → penalty, interest, and order of demand.

Typical SCN Reasons for Cost Audit & GST

Trigger	Example	GST Section Involved	Risk / Penalty
Turnover mismatch	CRA-4 shows ₹150 Cr, GSTR-1 shows ₹135 Cr.	Sec. 73(1) – short payment	GST demand + 10% penalty.
Wrong HSN classification	Classifying condensed milk as fresh milk (exempt).	Sec. 74 – fraud/misstatement	100% penalty + tax demand.
Blocked ITC claimed	ITC claimed on staff canteen dairy supplies.	Sec. 17(5)	ITC reversal + 24% interest.
Export refund mismatch	ITC refund claimed higher than eligible.	Sec. 54 – refund	Refund recovery + fine.
Undervaluation	Cost audit shows ₹500/unit, GST invoice raised at ₹400/unit.	Sec. 15 – valuation	Tax demand on undervalued gap.

Non-Compliance Penalties

Nature of Offence	Penalty	Additional Consequence
Unintentional (Sec. 73)	10% of tax due or ₹10,000 (whichever higher).	Interest @ 18% per annum.
Fraud/Intentional (Sec. 74)	100% of tax due.	Prosecution possible if >₹5 Cr.
MCA non-compliance (CRA-4 not filed)	₹25,000 on company + ₹10,000 on every officer.	Cost audit rejection, extra scrutiny by GST dept.
Mismatch unresolved	Repeated SCNs.	Departmental audit or CAG reference.

Cost Audit Assist in SCN Defence

Evidence of reconciliation: Turnover, output, and consumption are reconciled by cost accounting.
Aids valuation: Ensures price per unit vs invoice amount on a GST invoice.
Evidence for litigation: CRA-4 & cost audit reports are legal documents and are admissible before tribunals.
Defensive measure: Facilitates the avoidance of penalties by way of proof of transparency.

Cost Audit Provisions under MCA

The Companies Act, 2013 (read with Cost Records and Audit Rules, 2014) mandates cost book maintenance by certain classes of companies and, in some instances, cost audits. The provisions directly relate to GST compliance as data of cost audits is traditionally cross-checked from tax returns.

Applicability of Cost Records

Businesses involved in producing products or services included in Table of Cost Records Rules are required to maintain cost records when:

Total turnover ≥ ₹35 crore in the previous financial year.

Cost Audit Applicability

Cost audit is required when businesses surpass certain limits:

Sector	Applicability Condition	Cost Audit Requirement
Regulated sectors (e.g., telecom, power, petroleum, drugs, fertilizers)	Company’s overall turnover ≥ ₹50 crore AND turnover of individual regulated product/service ≥ ₹25 crore	Mandatory cost audit
Non-regulated sectors (e.g., automobiles, cement, dairy, sugar, textiles, steel, etc.)	Company’s overall turnover ≥ ₹100 crore AND turnover of individual product/service ≥ ₹35 crore	Mandatory cost audit

Filing with MCA

Such companies which are obligated to get the cost audited must:

Appoint Cost Auditor within 180 days of the commencement of financial year.
File Form CRA-2 (appointment of auditor).
Submit Form CRA-4 (cost audit report) to MCA within 30 days of Board approval.

Penalties for Non-Compliance

Default	Penalty on Company	Penalty on Officers
Failure to maintain cost records	₹25,000 – ₹5,00,000	₹10,000 – ₹50,000
Failure to conduct cost audit / file CRA-4	₹25,000	₹10,000 per officer in default
False statements in cost records	Prosecution u/s 448 & 447	Fine + Imprisonment possible

Cost Audit-GST Link

Cross-matching: GST authorities use CRA-4 cost audit returns to match reported turnover.
Mismatch alerts: Mismatch between MCA data & GST returns usually leads to SCNs.
Risk aversion: Cost-reducing firms can easily resolve valuation disputes under GST.

GST & Cost Audit Compliance Synergy

MCA cost audit and GST compliance rules are connected to each other. They get harmonized in order not to incur SCNs, penalties, & audits.

Why Integration is Required

1. Data Consistency

GST returns (GSTR-1, GSTR-3B) → Sales & purchase data.
Cost audit reports (CRA-4) → Cost structures, margins, overheads.
Any discrepancy can trigger an alert.

2. Regulatory Inspection

MCA & GST departments share information increasingly.
Non-compliance in one usually invites probe in the other.

3. SCN Risk

Incorrect classification, under-valuation, or mismatch of turnover can lead to GST SCN.
Good cost audit record assists companies in countering with facts.

Area	Best Practice	Benefit
HSN Classification	Align GST classification with product categorization in cost records.	Prevents misclassification SCNs.
Reconciliation	Monthly reconciliation between GST filings & cost records.	Early detection of mismatches.
ITC Monitoring	Track ITC availed (GST) vs. recorded costs (CRA).	Avoid ITC reversal notices.
Audit Trail	Maintain digital audit trail of invoices, e-way bills, and cost ledgers.	Simplifies MCA/GST audit responses.
Filing Timelines	Synchronize CRA-2/CRA-4 with annual GST return filing.	Reduces compliance gaps.

Automation & Tools

ERP & Accounting Software: SAP, TallyPrime with GST + Cost Accounting modules.
Compliance Platforms: ClearTax, Swipe, Zoho Books – for GST + MCA filings.
Data Analytics: GST and MCA account automated reconciliation reports.

Industry Example

Big milk producer:

MCA cost audit turnover reported ₹120 crore.
GST return reflected ₹115 crore due to discount adjustments.
Discrepancy led to SCN under Section 74 of CGST Act.
Company defended through cost audit reports → SCN reduced.

Conclusion

GST, MCA, and SCN compliance are interlinked.
Misclassification, mismatch of ITC, or delay of filing of MCA will incur penalty and SCNs.
A good system of compliance renders audits more convenient, defenses stronger in court, and regulators more genuine.

Businesses need to bring GST compliance, cost audit provisions, and SCN response strategy together in a single compliance calendar for long-term growth.

FAQs

1. Why is cost audit conducted in GST compliance?

Cost audit verifies cost books with GST returns (HSN/SAC codes, ITC utilized, and realisations). It is utilized as evidence during GST audit or SCN proceedings.

2. What if a company fails to file CRA-2 or CRA-4 with the MCA?

Non-filing triggers ₹25,000 penalty against the company and ₹10,000 per officer. Continued non-compliance can trigger further regulator focus.

3. What is the connection between SCNs (Show Cause Notices) and cost audit records?

In the event of mismatched GST returns and cost audit records, tax officials issue SCNs for tax deficiency, mismatch in ITC, or improper classification. Cost audit reports are typically classified as defense evidence.

4. What is the penalty for incorrect HSN/SAC classification under GST?

Misclassification invites penalties under Sec 122 & Sec 125 of CGST Act, maximum 10% of payables (minimum ₹10,000), along with interest and potential SCN litigation.