Define what each manager controls
Record costs where they arise, trace them where evidence permits, and allocate the remainder only for a stated purpose. A cost center tracks resources or services; a profit center tracks revenues and costs. A central warehouse or payroll team may be a cost center; a product line with separately tracked sales and expenses may be a profit center. Avoid judging a manager solely on overheads they cannot influence.
| Responsibility center | What to assess |
|---|---|
| Operating cost center | Cost against a volume-adjusted budget, service output and quality. |
| Discretionary cost center | Spending against an approved budget and outcomes such as service levels. |
| Profit center | Contribution, controllable operating results and the reconciliation to fully allocated results. |
| Investment center | Operating results and returns on the capital it controls. |
Separate statutory cost records from management allocation
Section 148 and the Companies (Cost Records and Audit) Rules determine which companies and products or services require statutory cost records or audit. Rule 5 and CRA-1 govern cost records where applicable, including the approach to cost centers, cost objects and cost drivers. CAS-3 addresses production and operation overheads in cost statements. It does not prescribe a single management allocation key for every shared corporate expense. Administrative overheads require separate consideration under CAS-11 where applicable.
Trace dedicated costs first. Allocate common costs by cause and effect or benefits received, using evidence from the operating period. For product costing, distinguish fixed production overheads and variable overheads and apply the relevant normal capacity and actual utilisation rules. General administrative costs that do not contribute to production should not be treated as factory overhead solely because management wants a fully allocated divisional result. Keep separate views for managerial decisions and reporting purposes.
| Cost pool | Candidate driver |
|---|---|
| Premises | Usable floor area or dedicated spaces, with separately identified common areas. |
| Power and cooling | Metered kWh or a documented engineering estimate; separate demand-related charges when material. |
| Payroll and HR | Active employees for routine work; recruitment cases, joiners or staff time for hiring costs. |
| IT and cloud | Assigned licences, devices, measured compute or storage, depending on what drives each charge. |
| Warehouse | Pallet-days or bin-days for space and order lines or handling time for picking. |
| Purchasing and accounts payable | Order lines, processed invoices or workload weights for complex transactions. |
Choose an allocation method
- Direct: allocate service pools only to operating centers and rescale the applicable shares. Use when mutual services are immaterial or when that approximation is intentional.
- Sequential or step-down: allocate one service department at a time to open centers. No cost returns to a center already closed. Document the chosen order and denominator.
- Reciprocal: use simultaneous equations to account for mutual services before allocating costs to operating centers. Total final allocation must reconcile to original costs; service transfers do not create new group costs.
Seven worked cases
1. Maintenance and quality support two plants
Initial costs in ₹ lakh are Maintenance 24, Quality 18, Auto 62 and Aerospace 48, totalling 152. Maintenance usage is Quality 20%, Auto 50%, Aerospace 30%; Quality usage is Maintenance 10%, Auto 60%, Aerospace 30%. Let M = 24 + 0.10Q and Q = 18 + 0.20M. Solving gives M ≈ 26.3265 and Q ≈ 23.2653. The reciprocal allocations to Auto and Aerospace are approximately ₹89.1224 lakh and ₹62.8776 lakh including their own overheads. Keep unrounded values in the model so the final total is ₹152 lakh.
Under step-down with Maintenance first, Quality receives ₹4.80 lakh and distributes ₹22.80 lakh between Auto and Aerospace in the ratio 60:30, ignoring its service to the already closed Maintenance center. Final totals are ₹89.20 lakh and ₹62.80 lakh. Aerospace’s reciprocal share of shared overhead is ₹14.88 lakh, but this by itself does not establish a required tender price increase.
2. Replace a blanket charge at 35 stores
A chain has ₹84 crore of sales and a ₹7.20 crore overhead pool. Its old 8.5% sales charge recovers ₹7.14 crore, leaving ₹6 lakh centrally; at its ₹12 crore flagship the charge is ₹102 lakh. A reported ₹18 lakh loss implies ₹84 lakh of operating profit before the charge.
Suppose merchandising, marketing, HR and leadership represent 30%, 35%, 20% and 15% of the total pool respectively. Assume the flagship accounts for 5% of order activity, 5% of tagged marketing, 5.6% of HR activity and one of 35 equal leadership shares. Its allocation is ₹34.55 lakh and fully allocated profit ₹49.45 lakh, or 4.12% of sales. Test the profitability of each new store using actual driver usage and avoidable costs before making a closure decision.
3. Use different drivers in printing and assembly
Annual overhead of ₹3.60 crore is split into ₹2.95 crore for offset printing and ₹65 lakh for manual assembly. Assume appropriate capacity denominators of 4,800 machine hours and 280,000 labour hours. Rates are ₹6,145.83 per machine hour and ₹23.21 per labour hour. A rigid box using 1.5 assembly labour hours absorbs approximately ₹34.82 of assembly overhead at the unrounded rate, compared with ₹220 under the old illustrative blanket allocation. Also assign any actual offset printing used by that job and evaluate pricing on the relevant cost basis.
4. Allocate a diagnostic lab’s shared capacity
A central lab and eight collection centers process 600,000 tests annually. An analyzer estimated at ₹1.20 crore is supplied under a reagent purchase arrangement. Review the contract: identify minimum commitments, reagent consumption and whether the arrangement contains a lease under the applicable accounting framework. An internal estimate of equipment capacity costs does not, by itself, create a statutory depreciation charge or prove the equipment is free. Track direct reagent use by test and allocate capacity by relevant analyzer time, tests weighted for complexity, or batches. Show an internal service charge separately from consolidated third-party revenue, and do not use costing incentives to override clinical decisions.
5. Price warehouse bins and pallets separately
A 65,000 sq. ft. warehouse has 40,000 sq. ft. for 2,400 pallet positions and 25,000 sq. ft. for 38,000 small bins. Illustrative rates of ₹42.50 per pallet-day and ₹3.15 per bin-day imply pool totals of ₹102,000 and ₹119,700 per day at those stated capacity denominators. A lipstick occupying one fiftieth of a fully shared bin consumes about ₹0.063 of bin storage a day if volume is a valid allocation base; a reserved bin still consumes a whole bin-day. Charges of ₹0.40 for an item-day and ₹65 for a pallet-day are illustrative selling prices, not evidence of margins. Add handling and measure utilisation before setting prices.
6. Make engineering bench cost visible
A 220-engineer firm has ₹54 lakh of monthly idle capacity cost. It can charge a practice for a defined initial 30-day period after an engineer rolls off, then show redeployment or shared training separately. A practice that lends staff can receive a documented salary recharge plus a 10% internal markup if that helps management measure responsibility. Eliminate internal markups in combined reports. A decline in idle hours from 18.5% to 4.2% is 14.3 percentage points; it is not automatically a reduction in payroll expense. Measure utilisation, billable redeployment and actual cash savings separately.
7. Allocate joint costs at a mustard mill
Input of 300 tonnes at ₹52,000 plus ₹18 lakh overhead gives ₹174 lakh daily joint cost. Output is 105 tonnes of oil (35.0%), 190 tonnes of cake (63.3%) and five tonnes of loss (1.7%). At ₹1,25,000 and ₹24,000 per tonne respectively, sales values are ₹131.25 lakh and ₹45.60 lakh, totalling ₹176.85 lakh. Treat both outputs as joint products in this illustration and assume the prices represent split-off values with no further relevant adjustments. Under the relative value method, oil’s share is about 74.22% and cake’s 25.78%; apply the unrounded ratios. Joint cost is about ₹129.13 lakh for oil (₹1,22,985.58 per tonne) and ₹44.87 lakh for cake (₹23,613.23 per tonne).
CAS-19 allows appropriate bases for assigning joint costs, including split-off value or other applicable measures. If products are sold only after more processing, assess the relevant net realisable values rather than using gross final sales indiscriminately. If an output is genuinely a by-product, apply the standard’s separate treatment; the accounting does not depend on what the output happens to be called.
Run the monthly close and review exceptions
Maintain a chart of cost objects, map invoices and payroll at source, document the data owner for every driver, and reconcile allocations to the general ledger. Show controllable profit before allocations, shared-service charges and unallocated corporate costs in separate rows. Trace specific legal or IT work when practical; leave enterprise governance central in the accountability view if no defensible driver exists. Use actual costs, standard cost plus a markup, or market-based internal transfer prices according to the decision and report differences transparently. Internal prices within one entity do not determine tax treatment for transactions between legal entities.
Ind AS 108, where applicable, identifies operating segments from qualifying business activities, results regularly reviewed by the chief operating decision maker and available discrete financial information. Internal profit centers inform that analysis, but reporting also requires the standard’s aggregation, thresholds and reconciliation tests. An ERP tag or spreadsheet allocation alone does not establish statutory compliance.
Sources
- ICMAI: CAS-3 (Revised 2015), Production and Operation Overheads
- ICMAI: CAS-19, Joint Costs
- ICMAI standards directory, including CAS-1 and CAS-11
- Companies (Cost Records and Audit) Amendment Rules, 2014, including Form CRA-1
- India Code: Companies Act, 2013, section 148
- ICAI: Ind AS 108, Operating Segments