A business owner I know kept wondering why his profits were going down even though sales looked good. Every month, he ordered more products because the inventory system showed stock was running low. But when he finally walked into the warehouse and checked things himself, he found shelves filled with products that weren’t selling and several items missing from the records altogether.
Money was stuck in extra inventory. Some customer orders had already been delayed because the numbers in the system didn’t match the actual stock. His team blamed the warehouse. The warehouse blamed the software. That’s when he decided to conduct the inventory internal audit.
The audit didn’t just identify missing stock. It pointed out weaknesses in inventory management, poor controls and products remaining in storage for months. Most importantly, it provided the business an opportunity to solve these flaws before they bit into profits even further.
In this blog, we’ll talk about how an inventory audit helps to enhance inventory accuracy, minimize losses, strengthen controls and eventually boost profitability.
What Is an Inventory Internal Audit?
Basically, an inventory internal audit is a thorough review of your inventory records, processes and controls. It tells what your system claims you have is actually physically present in your warehouse.
But that’s not all. It also considers how inventory moves through your company and how it’s received, stored, managed, and sold.
Credible inventory audits don’t happen by instinct, they follow a disciplined methodology. In India, that methodology is anchored in the Standards on Internal Audit (SIA) issued by ICAI’s Internal Audit Standards Board, which cover everything from planning and evidence-gathering to internal controls and reporting, the same principles a Chartered Accountant applies whether the subject is inventory, payroll, or revenue.
 Most businesses think of inventory audit as a year-end housekeeping exercise. But the moment a private company crosses ₹200 crore in turnover or ₹100 crore in borrowings, Section 138 makes internal audit a statutory obligation, and inventory is almost always where the first material control gap shows up, because it touches operations, GST records and financial reporting all at once.
We also see this from the other side: businesses get GST review not because they lost money on stock, but because their Rule 56 stock register never tied back to their books in the first place. An internal audit catches that mismatch before the department does, which is a far cheaper place to find it.
Inventory Audit vs Physical Stock Count
A lot of people assume an inventory audit just means counting products. That’s only a small part of the story.
| Inventory Audit | Physical Stock Count |
|---|---|
| Looks at inventory processes, systems, and internal controls. | Counts the actual quantity of stock available. |
| Identifies risks, discrepancies, and control weaknesses. | Verifies whether physical stock matches inventory records. |
| Reviews inventory records, documentation, and procedures. | Focuses only on counting and verifying stock quantities. |
| Evaluates inventory management efficiency and compliance. | Confirms stock availability and accuracy. |
| Helps improve operational effectiveness and inventory controls. | Helps identify shortages, excess stock, or discrepancies. |
| Covers valuation, recording, storage, and movement of inventory. | Covers only physical verification of inventory items. |
| Usually conducted by auditors as part of an audit process. | Usually conducted by warehouse staff, management, or auditors. |
| Provides recommendations for process improvement. | Provides an accurate snapshot of stock on hand at a specific date. |
| Broader in scope and analytical in nature. | Narrower in scope and verification-focused. |
| Supports better inventory governance and decision-making. | Supports accurate inventory records and financial reporting. |
Key Objectives of an Inventory Internal Audit
When companies perform an inventory audit, they are generally trying to:
- Improve inventory verification.
- Upgrade the inventory control audit procedure.
- Detect gaps and losses.
- Improve internal controls.
- Simplify operations.
- Follow all company policies.
How an Inventory Internal Audit Improves Inventory Accuracy?
1. Physical Inventory Verification
One of the most important steps is to count your physical inventory. Auditors should compare what you have in your store vs what you have in your system and investigate any differences.
2. Inventory Reconciliation Procedures
Stock reconciliation is simply when you compare your physical inventory with your records. And it helps you spot mistakes early and keep your numbers accurate.
3. Evaluating Inventory Control Systems
Strong inventory control systems keep everything in check. This is also where SIA 120, Internal Controls, becomes directly relevant, an audit reviews things like:
- Who has access to make changes?
- Approval processes.
- Inventory adjustments.
- System controls.
4. Cycle Counting and Spot Audits
Many companies do cycle counting rather than a full inventory count once a year. That means regularly looking at smaller sets of items.Â
5. ERP and Inventory Software Validation
The use of software is necessary in controlling the inventory in most firms. An audit is a process to check the accuracy of the transactions and information that the system provides.
6. Standardizing Inventory Management Processes
Consistency is really important. Defined processes for receiving, storing, transferring and shipping inventory allow accurate and effective inventory management.
How an Inventory Internal Audit Improves Profitability?
Improving accuracy is great, but the real benefit shows up in your profits.
1. Reducing Inventory Holding Costs
It costs money to store goods. The expenses that are the ones you pay for:
- Storage.
- Insurance.Â
- Handling.
- Maintenance.
You can save these costs by checking all the overstocked goods.
2. Dead Stock Identification and Inventory Optimization
The sooner you identify dead stock, the sooner you can do something about it before it turns into a bigger loss. You can offer:
- Discounts.
- Assemble goods to sell as a set.
- Stop over ordering.
- Increase turnover.
3. Reduction of Revenue Loss from Inventory Errors
Inventory problems can result in lost sales and dissatisfied consumers. Good records will protect you and your money from these problems.
4. Improving Cash Flow Through Better Inventory Management
If you do not overstock, you will not have money tied up in inventory. That’s good for cash flow and gives you more flexibility to reinvest for growth.
5. Enhancing Inventory Turnover and Working Capital Efficiency
A good audit puts you in the right balance, not too much, not too little. When you can move goods more efficiently, you receive faster sales, lower costs and better use of your capital.
6. Reducing Waste, Damage, and Inventory Shrinkage
Audit will make you aware of the places where there is wastage of inventory, damage of inventory or theft of inventory. Reduction of inventory shrinkage improves your profitability.
The MSNA Inventory Audit Readiness Index (IARI)
The MSNA Inventory Audit Readiness Index is a quick self-diagnostic across six control dimensions. Score yourself honestly, and use the result to decide how urgently you need an external review.
Inventory Audit Maturity Scorecard
| Dimension | Score 0 (Weak) | Score 1 (Developing) | Score 2 (Strong) |
|---|---|---|---|
| Record-to-Floor Accuracy | No recent physical count vs. book comparison. | Annual count only, gaps unexplained. | Cycle counts with documented variance resolution. |
| Statutory Documentation | GST stock register not reconciled to books. | Reconciled occasionally, no formal process. | Rule 56 stock register reconciled to books monthly. |
| Valuation Discipline | No write-down process for slow-moving stock. | Ad hoc write-downs at year-end. | Ind AS 2 / AS 2 NRV review built into closing process. |
| Segregation of Duties | Same person orders, receives, and records stock. | Partial separation, no formal sign-off. | Clear segregation with documented approval trail. |
| Technology & Traceability | Only manual registers or spreadsheets. | ERP in place but data quality inconsistent. | ERP/WMS with barcode or RFID-level traceability. |
| Review Cadence | No internal audit function or Section 138 review. | Internal audit exists but inventory out of scope. | Inventory included in a risk-based internal audit plan. |
Add up your score across the six dimensions (maximum 12):
- 0-4 High Risk: Inventory is likely distorting both your GST filings and your financial statements right now. A full inventory internal audit should be a near-term priority.
- Â 5-8 Moderate Risk: Core processes exist but have gaps. A focused internal audit on the weakest 2-3 dimensions will close most of the exposure.
- 9-12 Strong Control Environment: Maintain the discipline with periodic cycle audits and revisit the score annually or after any major scale-up.
Why Inventory Accuracy Matters for Business Success?
Inventory accuracy is not just an inventory problem; it affects the whole company.
Strong inventory controls are a key component of corporate governance, demonstrating how Internal Audit Builds Structured Corporate Governance for Growing Companies through improved oversight, accountability, and risk management.
1. Impact on Financial Reporting and Inventory Valuation
Inventory tends to be one of your largest assets on the balance sheet. If your figures are wrong, your inventory valuation will be wrong too. This could result in:
- Wrong profits.
- Errors in financial statements.
- Tax concerns.
- Poor decision-making.
2. Impact on Customer Satisfaction and Order Fulfilment
The customers have a certain expectation from you regarding their orders being delivered to them on time. When your inventory management system tells you that there are items in stock, but actually, there aren’t any, then you set yourself up for disappointment from your customers’ side.
3. Impact on Purchasing and Demand Forecasting
The buying decisions of an individual are dependent greatly on his inventories. With wrong inventories, one could:
- Purchase more than necessary.
- Lack important goods.
- Store at an increased cost.
- Plan poorly.
4. Impact on The Profit Margins and Business GrowthÂ
Inventory errors cost you a lot of money. Overstocking costs you money and understocking loses you sales. Good inventory management protects your margins and helps develop your business.
Global Benchmark: Cost of Inventory Loss at Scale
Indian retailers and manufacturers don’t publish shrink data the way large global retailers do, but the scale of the problem internationally is a useful benchmark for any business assessing its own exposure:
- In the most recent published National Retail Federation shrink survey, average inventory shrink stood at 1.6% of retail sales, a rise from 1.4% the year before, translating to over $112 billion in losses across the US retail sector alone.
- NRF’s Impact of Retail Theft & Violence 2025 report found an 18% year-on-year increase in average shoplifting incidents, a reminder that loss tends to compound when it isn’t actively monitored.
Example Scenario:Â
Actual inventory = 900 units.
Book inventory: 1,000 units
And then what?
Orders could not be processed, you need to buy the products urgently, and eventually lost profit. This one small mistake leads to bigger mistakes.
Common Inventory Problems Identified During an Inventory Internal Audit
1. Inventory Shrinkage and Theft
Inventory shrinkage occurs when inventory is lost due to theft, damage, supplier problems, or just mistakes. It doesn’t take much to add all of these mistakes over time. An audit will help you find out where this is going on.
2. Stock Discrepancy Analysis and Root Cause Identification
When numbers don’t add up, you have to figure out why not. Stock discrepancy analysis can reveal root causes such as:
- Bad entries.
- Incorrect count.
- Transactions missing.
- Misplaced items.
3. Data Input and Error in the System
The more data that is input into the inventory management system, the more efficient the system will become. Confusion might happen due to wrong SKU numbers, duplicates, and delays.
4. Overstocking and Excess Inventory
Buying too much stock ties up money and increases storage fees. Moreover, this will also increase the chance of being outdated.
5. Dead Stock and Obsolete Inventory
Dead stock is inventory that just sits there and doesn’t sell. An audit helps you identify these items so you can take action, whether that’s discounting, bundling, or stopping future purchases.
6. Poor Inventory Controls and Process Gaps
If your systems are inadequate, mistakes and even fraud can slip through the cracks. An audit will expose those gaps and assist you tighten up your controls.
Note: As per Section 35 of CGST Act, 2017, every registered person shall maintain true and exact account of stock of goods. Rule 56 takes this a step further and requires opening balance, receipts, supplies and goods lost, stolen, destroyed or written off to be tracked. Any taxable goods found at an undeclared location may be regarded by the proper official as if they were provided with tax determined accordingly.
Inventory Internal Audit Checklist for Businesses
Before starting an audit, you need to:
- Review your inventory policies.
- Verify physical stock.
- Conduct stock discrepancy analysis.
- Review inventory valuation methodologies
- Analyse warehouse management.
- Controls and responsibilities review.
- Develop reports and action plans.
Businesses that lack in-house audit experience often engage an Internal Audit Firm in Bangalore to perform independent inventory reviews, identify control gaps, and recommend process improvements.
Inventory Audit Best Practices Businesses Should Know
To get the most out of your audit:
- Run audits regularly.
- Use cycle counting.
- Leverage inventory technology.
- Strengthen warehouse management controls.
- Train your team.
- Track key inventory metrics.
These can help make inventory audits even more productive, particularly for those firms that are experiencing growth, increased stock movement and reduced margins. Professional firms such as MSNA & Associates LLP have experience in areas such as internal audit, risk advisory and internal control, which can be useful to firms that want to have effective checks for their inventory management and other operations.
Warning Signs Your Business Needs an Inventory Internal Audit
You might need an audit if you notice:
- Frequent mismatches in stock.
- Rising inventory costs.
- Increasing dead stock.
- Falling profit margins.
- Customer complaints about stock availability.
- Rapid growth making inventory harder to manage.
Future Trends in Inventory Internal Auditing
Inventory audit is being changed by technology. Businesses are starting to use:
- Audits run by AI.
- Real time tracking.
- Predictive analytics.
- Automation in warehouse audit.
- Audit in progress.
Why an Inventory Internal Audit Is Worth Your Time?
An Inventory internal audit is not just about finding missing stock. It helps the company to keep its records straight, prevent unnecessary losses and make daily decisions in a more accurate manner. When inventory stays under control, the whole business runs better.
That is why professional firms like MSNA help you keep internal controls strong in the background.
It may not look flashy, but it saves time, money, and stress.
In the end, a clean inventory process makes the business easier to run and easier to grow.
Is Your Inventory Accurate, Compliant, and Profitable?
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