Convenience does not remove the cost-approximation condition
Ind AS 2 paragraph 21 permits techniques such as standard cost or the retail method for convenience if their results approximate cost. Standard costs reflect normal inputs, efficiency and capacity and require regular review and revision where necessary. Paragraph 22 explains the retail technique for the stated rapidly changing, similar-margin inventory population. This guide, checked on 26 October 2026, applies to ordinary inventories within the Ind AS measurement scope and does not prescribe tax inventory valuation. ICAI: Ind AS 2 paragraphs 9, 16, 21–22 and 36(a).
Build a reproducible standard rather than a target profit
Under paragraph 21, retain the normal material quantities, input prices, labour requirements and eligible overhead assumptions behind the standard. A budget selling price minus a desired margin is not automatically a supported standard manufacturing cost. Changes in input prices or process conditions should trigger examination of whether the retained standard still approximates cost. A regular review is required; no universal monthly or quarterly interval is invented here.
Variance analysis is evidence, not a licence to defer every cost
Reconcile the standard amount with supported cost workings and investigate significant differences. Separate stale rates from abnormal waste, idle capacity and non-inventory costs. Do not load every adverse variance into closing stock simply because the standard is lower than total spending: the standard’s cost and exclusion rules still govern. This article does not prescribe an automatic allocation of all variances or a fixed acceptable deviation percentage.
Retail margin is a margin on selling value
Paragraph 22 derives cost by reducing sales value by the appropriate percentage gross margin, taking markdowns below original selling price into account. Identify the population, relevant selling values, actual margin basis and markdown evidence. A 25% margin on sales is mathematically different from a 25% markup on cost. Mixing unrelated departments with materially different margins can hide a poor approximation.
Use departments and markdowns with evidence
The standard notes that a departmental average margin is often used. That does not mean every department may use the same convenient percentage or that an old margin remains correct after markdowns. Reconcile sales value and cost on a consistent basis, including the treatment of taxes and discounts. The examples use stipulated comparable amounts excluding taxes and assume the stated margins are supported; they do not establish a universal margin-selection rule.
Complete the separate measurement and disclosure checks
The lower-of-cost-and-NRV requirement still applies, and paragraph 36(a) requires disclosure of measurement policies including the cost formula. A technique used to estimate cost does not itself settle NRV, physical quantity or the underlying formula for assigning cost. Retain the approximation review and the implemented policy, rather than treating an ERP standard-cost field as proof of compliance. The examples isolate the stated costing assumptions and exclude special producer/broker-trader measurement exceptions.
Applicable primary references
ICAI: Ind AS 2 paragraphs 9, 16, 21–22 and 36(a)
Six worked illustrations
All facts and amounts below are fictional. Assumptions describe the model, not additional statutory rules.
Illustrative example 1: Reproduce the standard bill
Normal inputs per unit are three kilograms at ₹50, two labour hours at ₹120 and eligible overhead of ₹60. Standard cost is ₹150 plus ₹240 plus ₹60, or ₹450. For 1,000 units the standard total is ₹4,50,000, subject to proving eligible costs and approximation.
Illustrative example 2: Update a changed input rate
Using the same normal bill, the supported material rate becomes ₹55 per kilogram while other assumptions remain unchanged. Revised unit cost is ₹165 plus ₹240 plus ₹60, or ₹465. For 200 units the ₹15 unit change totals ₹3,000. Review whether and how the updated conditions affect the relevant inventory rather than retaining the old rate mechanically.
Illustrative example 3: Investigate an approximation gap
A standard of ₹500 is applied to 100 units, giving ₹50,000. An independently established eligible-cost working is ₹540 per unit, or ₹54,000. The gap is ₹4,000, equal to 8% of the recorded standard amount. That 8% measures the gap; it is not an Ind AS tolerance or a direction to capitalise every spending variance.
Illustrative example 4: Margin differs from markup
Closing inventory has supported selling value of ₹2,00,000 and an appropriate gross margin of 25% of selling value. Retail-estimated cost is ₹1,50,000. Dividing selling value by 1.25 would give ₹1,60,000 because that calculation assumes a 25% markup on cost; the ₹10,000 difference exposes the basis error.
Illustrative example 5: Department-specific margins
Department A has selling value ₹1,00,000 and supported 20% gross margin; Department B has ₹2,00,000 and 35%. Estimated costs are ₹80,000 and ₹1,30,000, totalling ₹2,10,000. A flat 25% margin on combined ₹3,00,000 would give ₹2,25,000, overstating this supported departmental working by ₹15,000.
Illustrative example 6: Markdown-sensitive assumption review
After markdowns, relevant closing selling value is ₹80,000 and the appropriately supported margin for this population is 20%. The retail estimate is ₹64,000. Reusing an obsolete 25% margin gives ₹60,000, a ₹4,000 difference. The assumed updated margin must be proved; the example does not say every markdown requires a 20% margin or automatically establishes NRV.
Ten-step verification table
| Step | Action | Evidence |
|---|---|---|
| 1 | Confirm the reporting population | Ind AS scope and ordinary inventory measurement basis. |
| 2 | Identify the technique used | Standard cost or retail, with the underlying policy. |
| 3 | Reproduce normal standard inputs | Materials, labour, efficiency and eligible overheads. |
| 4 | Review current conditions | Rates, process changes and capacity assumptions. |
| 5 | Test cost approximation | Independent eligible-cost working and investigated differences. |
| 6 | Separate excluded cost effects | Abnormal waste, idle capacity and unrelated expenditure. |
| 7 | Validate retail selling values | Comparable population, taxes, discounts and quantity basis. |
| 8 | Support the gross-margin percentage | Sales-margin basis, departments and markdown evidence. |
| 9 | Perform NRV and quantity checks | Separate supported measurement and physical records. |
| 10 | Retain policy and review conclusions | Implemented technique, formula and financial-statement disclosure. |
Sixteen practitioner FAQs
1. Are standard cost and retail techniques permitted unconditionally?
No. Paragraph 21 requires their results to approximate cost.
2. Does a standard reflect normal or every abnormal input level?
It uses normal levels of inputs, efficiency and capacity under the stated requirement.
3. Must standards be reviewed?
Yes, regularly and revised where necessary for current conditions.
4. Does this article impose a universal monthly review?
No. No such fixed interval is prescribed here.
5. Is desired selling margin automatically a manufacturing standard?
No. Support the normal eligible cost inputs.
6. Should every adverse variance enter closing inventory?
No. Investigate cost eligibility and the actual cause before determining treatment.
7. Is there a fixed allowed approximation error percentage?
None is created by paragraphs 21–22 or this guide.
8. When is the retail method often used?
For the stated large numbers of rapidly changing, similar-margin items where other methods are impracticable.
9. What does the technique deduct from selling value?
The appropriate percentage gross margin.
10. Is gross margin on sales the same as markup on cost?
No. They use different denominators.
11. Must markdowns be considered in the percentage?
Yes, paragraph 22 expressly addresses them.
12. Can departmental average margins be used?
The standard notes that such averages are often used, with an appropriate supported basis.
13. Does that justify one arbitrary rate across dissimilar departments?
No. Test the actual population and approximation.
14. Does an ERP standard-cost field prove compliance?
No. Retain the bill, assumptions and review evidence.
15. Does a valid retail estimate eliminate NRV testing?
No. The standard’s separate measurement requirements remain.
16. What should the final review connect?
Physical quantity, supported cost approximation, current assumptions, NRV and the actual disclosed policy.
Conclusion
Use standard cost or retail techniques only where they approximate cost; test normal inputs, changing conditions, department margins and markdown effects.