Manufacturing Audits: Independent Assurance for Better Decisions
A pillar guide to manufacturing company audits — when one may be required, what the engagement covers, how the process runs, and how Dohan CPA supports readiness.
Assurance Services
Dohan CPA provides manufacturing audits for privately held manufacturers, distributors with production operations, contract manufacturers, lenders, investors, owners, and management teams. Our objective is reliable reporting over inventory, production economics, revenue, working capital, debt, and operational exposures. This guide explains when the service may be needed, what the engagement addresses, how the process works, and how management can prepare.
Who manufacturing audits are for
Dohan CPA's manufacturing audits are designed for privately held manufacturers, distributors with production operations, contract manufacturers, lenders, investors, owners, and management teams. The engagement is organized around the reporting needs of the people who will actually use the statements, rather than treating the audit as a generic year-end exercise.
The intended result is reliable reporting over inventory, production economics, revenue, working capital, debt, and operational exposures. Management remains responsible for the financial statements, underlying records, estimates, controls, and representations; the independent CPA is responsible for planning and performing the engagement and reporting in accordance with the applicable professional standards.
When an audit may be needed
Manufacturers often need audits for lenders, investors, acquisitions, customer or supplier requirements, employee ownership arrangements, or governance. Early scoping should address locations, inventory observations, systems, reporting framework, and deadlines.
Before accepting a timetable or quote, identify the reporting entity, fiscal period, financial reporting framework, intended users, required report language, delivery date, and any compliance or supplemental schedules. A requirement in a loan, contract, statute, regulatory agreement, or governing document should be read directly rather than summarized from memory.
What makes this engagement different
Manufacturing audits connect purchasing, receiving, production, labor, overhead, inventory, shipping, billing, quality, and financial close. Inventory often drives both the balance sheet and gross margin, making accurate quantities, standard or actual costs, overhead absorption, obsolescence, and cutoff central to the engagement.
A strong engagement therefore combines technical accounting, industry knowledge, disciplined project management, and timely communication. The audit is more efficient when key schedules reconcile before fieldwork and questions are routed to people who understand the underlying transaction.
Areas commonly addressed
The scope is risk-based and tailored to materiality and the applicable standards. Common areas include:
- Raw materials, work in process, finished goods, consigned stock, third-party locations, and goods in transit
- Standard costs, bills of material, routings, labor, overhead rates, variances, and net realizable value
- Slow-moving and obsolete inventory, scrap, rework, warranty, returns, rebates, and customer concentrations
- Revenue cutoff, shipping terms, contract manufacturing, bill-and-hold or consignment arrangements, and credits
- Property and equipment, repairs, capitalization, leases, impairment, and environmental obligations
- Debt, borrowing bases, covenants, cybersecurity, supply-chain disruption, and related-party transactions
Our audit approach
The exact procedures vary with assessed risks, but a well-managed engagement commonly includes the following work:
- Understand purchasing, receiving, production, inventory movement, shipping, billing, and close controls
- Observe physical inventory counts at selected locations and test management's count procedures
- Test inventory costs to purchasing, payroll, bills of material, overhead calculations, and variance analysis
- Evaluate excess, obsolete, damaged, slow-moving, or loss-making inventory and net realizable value
- Test sales and purchases around year-end, shipping terms, returns, credits, and unrecorded liabilities
- Evaluate fixed assets, leases, warranties, debt, covenants, concentrations, and significant estimates
What the audit does and does not provide
A financial statement audit is designed to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether caused by error or fraud, and to support the auditor's opinion. Reasonable assurance is a high level of assurance, but it is not absolute assurance and an audit is not a guarantee that every error, control deficiency, improper payment, or instance of fraud will be found.
An audit also does not replace management's responsibilities, provide legal advice, determine the value of a business or property unless separately engaged, or predict future results. Findings and recommendations should be evaluated in the context of the engagement's objective and the organization's risk tolerance.
A practical timeline
Planning should begin before year-end. During planning, confirm scope, independence, deadlines, material locations, confirmation contacts, specialists, prior findings, and client-prepared schedules. After year-end, management closes the books and delivers reconciled schedules. The CPA performs fieldwork, communicates open items, evaluates adjustments and disclosures, obtains representations, and issues the report after all required evidence and approvals are complete.
Calendar time depends on readiness and responsiveness as much as auditor hours. Missing reconciliations, changing trial balances, incomplete contracts, slow third-party confirmations, and late legal or governance information are common causes of delay.
Why work with Dohan CPA
Dohan CPA brings the perspective of a full-service CPA firm serving South Florida businesses, organizations, owners, and high-value individuals. The objective is a technically sound engagement with direct communication, practical request lists, visible responsibility, and attention to the decisions the financial statements must support.
A proposed engagement should be finalized only after Dohan CPA confirms that the service is within the firm's current capabilities, independence requirements, licensing, staffing, and quality-management procedures.
Frequently asked questions
Must auditors attend the physical inventory?
When inventory is material, auditing standards ordinarily require the auditor to obtain evidence about existence and condition, often through attendance at physical inventory counting unless alternative procedures are appropriate in the circumstances.
Can cycle counts replace a year-end count?
They may support reliable perpetual records when the program is well designed, differences are investigated, controls operate throughout the year, and the auditor can obtain sufficient evidence. This should be planned in advance.
How is obsolete inventory evaluated?
Management should combine aging, usage, forecasts, engineering changes, customer demand, selling prices, disposal history, and item-specific knowledge. The auditor tests the data and assumptions supporting the reserve.
Why does overhead absorption matter?
Inventory cost can include appropriate production overhead. Weak rates or volume assumptions can distort inventory and gross margin, especially when production changes materially.
What if inventory is held by a third party?
Prepare location and ownership records early. The auditor may use confirmations, physical observation, service-auditor reports, shipping documents, or other procedures depending on materiality and risk.
How can management avoid count-day disruption?
Freeze or tightly control movements, pre-number tags, clean locations, identify obsolete goods, test scanners, assign count teams, document cutoff numbers, and complete a mock count beforehand.
Authoritative sources
- FASB: Accounting Standards Updates Issued - Financial Accounting Standards Board
- FASB: Revenue Recognition - Financial Accounting Standards Board
- AICPA: What is the difference between a compilation, review, and audit? - AICPA & CIMA
General educational information only. This page is not accounting, auditing, tax, investment, or legal advice and does not create a CPA-client relationship. Requirements and standards can change and depend on specific facts and agreements.