Cost Accounting & CAS Compliance: The Process, Start to Finish
The mechanics of Cost Accounting & CAS Compliance are what clients ask about once they have decided to proceed. The questions below are the ones raised most often in practice; the full scope of the service is on the Cost Accounting & CAS Compliance page.
What is the difference between financial accounting and cost accounting?
Financial accounting, governed by Section 128 of the Companies Act 2013 and applicable accounting standards, records transactions to produce statutory financial statements — the balance sheet, profit and loss account, and cash flow statement — primarily for external stakeholders, regulators, and tax authorities. Cost accounting, where mandated under Section 148 and the Companies (Cost Records and Audit) Rules, 2014, records the same underlying transactions but reclassified and allocated by product, process, or cost centre, following the methodology prescribed by the Cost Accounting Standards (CAS). The two must reconcile, but they answer different questions: financial accounting answers 'what did the company earn overall', while cost accounting answers 'what does it actually cost to make this specific product, in this specific plant'.
In practice: We consistently see companies maintain excellent financial books and near-nonexistent product-level cost visibility. The two are not substitutes for each other — a clean financial audit says nothing about whether cost records exist or conform to CAS.
What is Form CRA-4 and what is its filing deadline?
Form CRA-4 is the electronic form used to file the cost audit report — along with the company's response to the cost auditor's observations, if any — with the Central Government. It must be filed within the timeline prescribed under Rule 6(6) of the Companies (Cost Records and Audit) Rules, 2014, generally within 30 days of receipt of the cost audit report by the company, subject to the overall filing window prescribed by the Rules and any extension the Central Government may notify from time to time.
In practice: The 30-day clock runs from receipt of the report by the company, not from the financial year-end — so the actual filing deadline shifts depending on how quickly the cost audit fieldwork concludes. We track this on a rolling basis rather than assuming a fixed calendar date each year.
How does variance analysis work in a cost accounting system, and why does it matter to management?
Variance analysis compares actual cost incurred against a predetermined standard cost, isolating the difference into specific, actionable components: material price variance (paid more/less than standard rate) and material usage variance (used more/less material than standard), labour rate variance and labour efficiency variance, and overhead spending variance and volume variance. Reported monthly rather than only at year-end, these variances give management an early signal — a material price variance spike flags a procurement issue in the month it happens, not eight months later when the annual accounts are finalised.
In practice: A valuable benefit of a properly built cost system, beyond compliance, is this early-warning function — catching a cost overrun in month two rather than discovering it in the year-end numbers, by which point the cash has already left the business.
How does CAS-3 treat overheads, and why do overhead allocation errors matter so much?
CAS-3 (Overheads) prescribes the methodology for collection, allocation, apportionment, and absorption of overheads — indirect costs such as factory rent, supervision, utilities, and depreciation that cannot be traced directly to a single product — into product costs, on a basis that reflects actual usage or benefit rather than an arbitrary formula. Overhead allocation errors are among the most consequential costing mistakes because they are invisible in aggregate financial statements (total overhead is correctly recorded) but distort every individual product's reported cost and margin — a product can appear profitable purely because it absorbs less than its fair share of overhead.
In practice: We have restructured overhead allocation bases for clients where management had, for years, been making pricing and product-mix decisions on numbers that were arithmetically correct in total but individually distorted by an outdated allocation key.
What is capacity determination under CAS-2, and how does it affect reported cost per unit?
CAS-2 (Capacity Determination) prescribes the methodology for determining installed capacity, normal capacity, and actual capacity utilisation of a production facility — a figure that directly affects the fixed-overhead absorption rate applied per unit of production. Reporting cost per unit without a consistent, CAS-compliant capacity basis means the same product's reported cost can swing significantly between a high-utilisation month and a low-utilisation month, purely due to fixed-overhead spreading, independent of any actual change in efficiency.
In practice: Clients sometimes conflate 'cost went up' with 'we became less efficient' when the real driver is a capacity-utilisation dip spreading the same fixed overhead over fewer units. Separating the two in management reporting avoids that misdiagnosis.
How does PNPC coordinate with the appointed Cost Accountant during audit?
Where PNPC is engaged for cost record maintenance but a separate Cost Accountant in practice is appointed as statutory cost auditor (which is required — the auditor role and the record-maintenance role are typically kept independent), we prepare the reconciliation between cost records and financial statements, respond to the auditor's queries on methodology and classification, and support the process through to the auditor's sign-off — functioning as the client's internal cost accounting resource through the audit cycle.
In practice: We do not position ourselves to also serve as the appointed cost auditor for the same records we help maintain, where independence considerations under the Cost and Works Accountants Act, 1959 and applicable ICMAI guidance would call that into question — we recommend and coordinate with an independent Cost Accountant for the audit itself.
How does depreciation get treated in cost accounting under CAS-16?
CAS-16 prescribes the methodology for treatment of depreciation and amortisation in cost records, addressing how depreciation is allocated to products or cost centres in a manner consistent with the asset's use in production, distinct from (though reconcilable to) the depreciation charged in the financial statements under the Companies Act Schedule II or applicable accounting standards. A production asset used across multiple product lines needs its depreciation allocated on a defensible usage basis — not simply spread evenly regardless of actual utilisation.
In practice: We reconcile the cost-accounting depreciation allocation to the financial-books depreciation charge explicitly in our workpapers, so a reviewer can trace the two back to the same asset register without ambiguity.
How does royalty or technical know-how fee get treated under cost accounting standards?
Where a company pays royalty or technical know-how fees linked to production (for example, a per-unit royalty to a technology licensor), the applicable Cost Accounting Standard prescribes how this cost is to be classified and included in product cost — typically as a direct cost attributable to the specific product or process the royalty relates to, rather than absorbed generically across all products.
In practice: Royalty and technical fee arrangements are also frequently subject to related-party and transfer-pricing scrutiny — we ensure the cost-accounting treatment and the transfer-pricing/related-party documentation tell a consistent story.
How does cost accounting help with pricing decisions?
Accurate, product-wise cost data — direct material, direct labour, and properly allocated overheads — tells management the true cost floor for each product, below which a sale is loss-making even if it appears to contribute positively when viewed only against a blended, company-wide average cost. This is particularly important for businesses with a diverse product mix, where a small number of high-volume products can mask that several lower-volume products are being sold below their actual cost.
In practice: Product-wise costing can reveal that a 'flagship' product line is actually being subsidised by margins from a less glamorous but genuinely more profitable product — a finding that can reshape sales strategy.
Where this sits in the wider engagement
Cost Accounting & CAS Compliance rarely arrives on its own. The statutory basis and the current requirements are set out on the Cost Accounting & CAS Compliance service page, and the related services are grouped under Accounting Payroll.
What PNPC does
PNPC Global has practised since 1986 across India and the UAE. On Cost Accounting & CAS Compliance we take the work end to end — reviewing the facts, preparing and filing what is required, and dealing with the authority through to closure.