A to Z Costing Knowledge Glossary — Letter U
Investopedia-style costing concepts explained with formulas, practical examples, comparisons, and exam-focused teaching tips.
1 Under-Absorption of Overheads
| Category | Overhead Accounting |
|---|---|
| Best Used In | Year-end cost reconciliation, Adjusting Cost of Sales |
| Key Formula | Actual Overheads − Absorbed Overheads (When Actual is higher) |
| Exam Importance | Extremely High |
Under-Absorption occurs when the total overhead costs actually incurred by the factory are greater than the overhead costs charged (absorbed) to the products using a pre-determined overhead rate.
Because companies use estimated rates to price products during the year, they often guess wrong. If production volume is lower than expected, or if bills (like rent/electricity) are higher than expected, the products do not “soak up” enough cost to cover the actual bills. The business is left with unrecovered factory costs.
- Reconciling Cost Accounts with Financial Accounts
- Adjusting WIP, Finished Goods, and COGS via a Supplementary Rate
- Evaluating capacity utilization failures
A factory sets its Overhead Absorption Rate at ₹50/unit, planning to make 10,000 units to cover ₹5,00,000 in rent. They only make 8,000 units. They “absorb” ₹4,00,000 into product costs. The landlord still demands ₹5,00,000. The ₹1,00,000 shortfall is the Under-Absorption. This ₹1 Lakh loss must be written off to the P&L.
Actual Overheads Paid = ₹3,20,000.
Overheads Absorbed (Actual Hours × Predetermined Rate) = ₹2,90,000.
Under-Absorption = ₹3,20,000 – ₹2,90,000 = ₹30,000.
Financial Impact: The company’s actual profits will be ₹30,000 lower than the cost sheets originally projected.
- Calculate total overhead absorbed (Actual Base × Predetermined Rate).
- Compare it to the actual invoices paid for overheads.
- If Actual > Absorbed, you have a shortfall (Under-Absorption).
- Accounting Treatment: If due to abnormal reasons (strikes), write off directly to Costing P&L. If due to wrong estimates, apply a Supplementary Rate to adjust the value of unsold stock and COGS.
| Under-Absorption vs. Over-Absorption | Under-absorption means you charged too little (creates a loss). Over-absorption means you charged too much (creates a gain). |
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2 Uniform Costing
| Category | Cost Systems & Industry Standards |
|---|---|
| Best Used In | Trade associations, Government price regulation |
| Key Formula | Standardized industry-wide costing manual |
| Exam Importance | High (Theory) |
Uniform Costing is not a distinct method of costing (like Job or Process costing). Rather, it is the use of the exact same costing principles, rules, and formats by several different undertakings within the same industry.
If every sugar mill calculates “Cost of Production” differently (e.g., one includes depreciation, one doesn’t), the government cannot fairly set the Minimum Support Price for sugar. Uniform Costing forces all competing companies in a sector to speak the same accounting language, allowing for fair benchmarking.
- Inter-firm comparison (Benchmarking)
- Preventing unhealthy price-cutting wars among association members
- Facilitating government subsidies or tariff regulations
The National Association of Fertilizer Manufacturers creates a “Uniform Costing Manual.” It dictates that all members MUST use the FIFO method for materials and straight-line depreciation. When Company A reports a cost of ₹1,000/ton and Company B reports ₹1,200/ton, the industry knows Company A is genuinely more efficient, not just using a different accounting trick.
– Railways: Uniform operating costing to set national ticket prices.
– Pharmaceuticals: Uniform R&D capitalization rules to justify drug pricing to regulators.
– Steel/Cement: Trade associations establishing baseline industry costs.
- A central body (Trade Association/Govt) establishes a Costing Manual.
- All participating firms adopt the identical classification of Direct vs Indirect costs.
- Firms adopt identical methods for pricing material issues (e.g., Weighted Average).
- Firms submit their data to a central trust for anonymized benchmarking.
| Uniform Costing vs. Standard Costing | Standard costing compares a firm’s actuals against its own internal targets. Uniform costing compares a firm’s actuals against its competitors’ actuals. |
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3 Unit Costing (Single / Output Costing)
| Category | Costing Methods |
|---|---|
| Best Used In | Mines, Brick kilns, Cement factories |
| Key Formula | Total Costs ÷ Total Identical Units Produced |
| Exam Importance | Medium |
Unit Costing (also universally known as Output or Single Costing) is the simplest method of cost accumulation. It is used when an enterprise manufactures only one single, continuous, and identical product.
Because there is no product variety, there is zero need to track which department or which specific customer order consumed the resources. The accountant simply gathers all expenses for the month and divides them by the total output to find the cost per unit.
- Coal mining (cost per tonne of coal)
- Brick manufacturing (cost per 1,000 bricks)
- Sugar mills (cost per quintal of sugar)
A quarry spends ₹10 Lakhs on explosives, labor, and diesel in a month. They extract 50,000 tonnes of limestone. Using Unit Costing, the accountant prepares a simple Cost Sheet, divides the total ₹10L by 50,000 tonnes, and establishes the cost as ₹20 per tonne.
Total Output: 10,000 Units
Materials: ₹50,000 (₹5/unit)
Wages: ₹30,000 (₹3/unit)
Overheads: ₹20,000 (₹2/unit)
Total Cost: ₹1,00,000 (₹10/unit)
- Gather all costs incurred during the period.
- Organize them into a standard Cost Sheet (Prime Cost, Works Cost, COP).
- Verify the total count of good units produced.
- Add a “Cost per Unit” column next to the “Total Cost” column, dividing every single line item by the total output.
| Unit Costing vs. Batch Costing | Unit costing is for continuous, identical production. Batch costing is used when products are made in specific groups (e.g., a batch of 500 red shirts, then a batch of 500 blue shirts). |
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5 Uncontrollable Cost
| Category | Responsibility Accounting |
|---|---|
| Best Used In | Managerial performance appraisal |
| Key Formula | Excluded from Divisional Manager’s KPI scorecard |
| Exam Importance | High (Theory & Variance) |
An Uncontrollable Cost is an expense that a specific manager or department head has absolutely no authority or ability to influence, alter, or reduce within their defined scope of operations.
In Responsibility Accounting, it is deeply unfair (and demotivating) to evaluate a manager based on costs they cannot control. Therefore, performance reports must clearly segregate controllable costs (like direct material waste) from uncontrollable costs (like a national tax hike or CEO salary allocation).
- Designing Cost Centre performance reports
- Determining executive bonuses and incentives
- Explaining adverse variances in Standard Costing
A factory manager is given a budget for raw materials. During the year, the government suddenly doubles the import duty on steel. The Material Price Variance is hugely Adverse. The finance director classifies this variance as an Uncontrollable Cost and does not penalize the factory manager’s year-end bonus.
Controllable by Factory Manager: Overtime pay due to poor scheduling, scrap caused by untrained workers, power used by machines.
Uncontrollable by Factory Manager: Factory building rent negotiated by HQ, depreciation on machines purchased by the Board, general inflation.
- Review the organizational chart and authority limits of the manager.
- List all costs incurred in their department.
- Filter out costs driven by external forces (market rates) or superior executives (allocated HQ costs).
- Base the manager’s performance appraisal ONLY on the remaining controllable costs.
| Uncontrollable vs. Fixed Costs | Not all fixed costs are uncontrollable. A manager can control a fixed cost if they have the authority to hire/fire salaried staff. Uncontrollability is about authority, not cost behavior. |
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6 Usage Variance (Material Usage Variance)
| Category | Standard Costing |
|---|---|
| Best Used In | Controlling physical waste on the factory floor |
| Key Formula | (Standard Qty − Actual Qty) × Standard Price |
| Exam Importance | Extremely High |
Material Usage Variance (MUV) measures the financial cost of using a different physical quantity of raw materials than what the standard recipe allowed for the actual number of units produced.
It places a strict dollar value on factory waste. If workers are careless, or if machines are cutting steel poorly, the factory will consume more kilos of material than expected. This variance holds the Production Manager accountable for physical efficiency.
- Evaluating machine efficiency and worker training
- Investigating abnormal scrap or theft of materials
- Sub-dividing into Mix and Yield variances to pinpoint formulation issues
To make 100 shirts, the standard dictates using 200 meters of cotton. The cutting machine gets dull, tears the fabric, and the workers end up requisitioning 220 meters to finish the 100 shirts. The 20 meters wasted is multiplied by the standard price of cotton to calculate the Adverse Usage Variance.
Standard allows 2 kg per unit. Actual output = 500 units.
Standard Qty (SQ) = 1,000 kg.
Actual Qty Used (AQ) = 1,100 kg.
Standard Price (SP) = ₹50/kg.
Usage Variance = (1,000 – 1,100) × 50 = ₹5,000 Adverse.
- Find the Actual Output units achieved.
- Calculate how much material should have been used (SQ).
- Compare to how much was actually drawn from stores (AQ).
- If Actual > Standard, it is Adverse (Waste).
- Multiply the physical waste by the Standard Price.
| Usage Variance vs. Price Variance | Usage blames the factory for wasting kilograms. Price blames procurement for overpaying per kilogram. Together they equal the Total Material Cost Variance. |
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7 Unrealized Profit (Stock Reserve)
| Category | Process Costing / Inter-departmental Transfers |
|---|---|
| Best Used In | Balance Sheet Valuation, Adjusting Process Accounts |
| Key Formula | (Profit included in Transfer Price ÷ Transfer Price) × Closing Stock |
| Exam Importance | Very High |
Unrealized Profit arises in Process Costing when goods are transferred from one department to the next at a price above cost (including a markup), and some of those goods remain unsold in closing stock at the end of the year.
A company cannot legally make a profit by selling things to itself. While internal markups are great for evaluating departmental efficiency, any markup sitting in the closing inventory must be eliminated (via a Stock Reserve) before financial statements are published, otherwise, assets and profits will be illegally overstated.
- Inter-Process Profit reconciliation
- Consolidated financial reporting
- Valuing closing inventory strictly at pure cost
Process 1 makes yarn for ₹100 and transfers it to Process 2 for ₹120 (booking ₹20 profit). Process 2 hasn’t sold the yarn yet; it’s sitting in the warehouse on Dec 31. On the overall company Balance Sheet, the inventory cannot be listed at ₹120. The accountant creates a Stock Reserve to strip out the ₹20 Unrealized Profit, valuing the stock back at its true ₹100 cost.
Process B receives goods from Process A at a Transfer Price of ₹5,00,000.
Process A’s built-in profit on those goods was ₹1,00,000 (20% of Transfer Value).
Process B has ₹50,000 of these goods sitting in Closing Stock.
Unrealized Profit to eliminate = 20% × ₹50,000 = ₹10,000.
The true cost of Process B’s closing stock is ₹40,000.
- Maintain Process ledgers with 3 columns: Cost, Profit, and Total.
- When transferring goods in, carry over the embedded profit from the previous department.
- When valuing Closing Stock, apply the ratio of Total Profit to Total Value to extract the “profit element.”
- Debit P&L and Credit Stock Reserve to eliminate this unrealized profit at year-end.
| Unrealized Profit vs. Realized Profit | Profit is only realized when the final Finished Good is sold to an external, third-party customer. Until that physical sale happens, all internal markups remain unrealized. |
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8 Unfavorable Variance (Adverse Variance)
| Category | Standard Costing |
|---|---|
| Best Used In | Performance evaluation, Management by Exception |
| Key Formula | Actual Cost > Standard Cost (or Actual Revenue < Budgeted Revenue) |
| Exam Importance | High |
An Unfavorable Variance (most commonly called an Adverse Variance in Indian/UK exams) occurs when actual financial results negatively impact the company’s planned operating profit.
It is the mathematical red flag of cost control. For expenses, it means you spent more money than the standard allowed. For revenues, it means you sold fewer units or at a lower price than budgeted. Either way, it shrinks the company’s bottom line.
- Triggering root-cause investigations (Why are we bleeding cash?)
- Adjusting standard costs if they were unrealistically tight
- Penalizing departmental managers during appraisals
The standard allows 2 hours to fix a car. The mechanic takes 3 hours. The extra 1 hour of wages paid is an Unfavorable (Adverse) Efficiency Variance. The garage owner uses this calculation to realize they are losing money on repairs and must retrain the mechanic.
Cost Variance: Budgeted Rent = ₹10k. Actual = ₹12k. → ₹2k Unfavorable.
Revenue Variance: Budgeted Sales = ₹50k. Actual = ₹45k. → ₹5k Unfavorable.
Yield Variance: Expected Output = 100 kg. Actual Output = 90 kg. → 10 kg Unfavorable.
For Sales/Yield: Actual < Standard = Unfavorable (A)
- Calculate the mathematical difference between Standard and Actual.
- Apply logic: Did this difference increase or decrease my profit?
- If profit decreased, label it with a bold (A) for Adverse or Unfavorable.
- Do not just rely on negative/positive signs in calculators, as formulas can flip depending on how you write them. Rely on business logic.
| Unfavorable vs. Favorable Variance | Favorable increases profit (savings or extra revenue). Unfavorable decreases profit (overspending or lost revenue). |
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9 Upstream Costs
| Category | Strategic Cost Management / Value Chain |
|---|---|
| Best Used In | Lifecycle Costing, Target Costing |
| Key Formula | Costs incurred before physical production begins |
| Exam Importance | Medium (Finals) |
Upstream Costs are all the expenditures incurred in the Value Chain before the actual physical manufacturing of a product begins. They are heavily associated with product development and supply chain prep.
In modern Strategic Cost Management, up to 80% of a product’s lifecycle cost is locked in during the Upstream phase. If a product is designed poorly (Upstream), it will be incredibly expensive to manufacture (Production) and repair (Downstream). Managing upstream costs is the secret to Target Costing.
- Lifecycle Costing (Amortizing R&D over product life)
- Value Engineering (Designing costs out of the product)
- Supplier qualification and contract negotiation
Apple spends billions on R&D, software design, prototyping, and negotiating with Foxconn before a single new iPhone is actually built. These are Upstream Costs. By spending heavily upstream to perfect the design, they minimize assembly costs and warranty failures later.
Upstream Costs: Research & Development, Product Design, Prototyping, Sourcing/Procurement negotiations.
Production Costs: Factory labour, raw materials, machine power.
Downstream Costs: Marketing, Distribution, Customer Service, Warranties.
- Map the company’s entire Value Chain.
- Identify all costs incurred prior to the factory floor.
- Allocate these Upstream Costs over the expected lifetime unit volume of the product to find the true full cost per unit.
- Focus cost-reduction efforts here, as changing a blueprint is cheaper than changing a factory machine.
| Upstream vs. Downstream Costs | Upstream happens before the factory (R&D). Downstream happens after the factory (Marketing/Warranties). Traditional costing historically ignored both, focusing only on the factory. |
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10 Unit Contribution Margin
| Category | Marginal Costing / CVP Analysis |
|---|---|
| Best Used In | Break-Even calculations, Product profitability ranking |
| Key Formula | Selling Price per Unit − Variable Cost per Unit |
| Exam Importance | Extremely High |
Unit Contribution Margin is the exact amount of money generated by the sale of one single unit of product, after deducting all variable costs associated with making and selling that specific unit.
It represents the “contribution” that each individual product sale makes toward paying off the company’s Fixed Costs. Once all fixed costs are fully paid off (the Break-Even point), every subsequent Unit Contribution Margin flows 100% straight into Net Profit.
- Calculating Break-Even Point in units (Fixed Cost ÷ Unit Contribution)
- Ranking products in a Key Factor / Limiting Factor scenario
- Evaluating whether to drop a product line
You sell a t-shirt for ₹500. The cotton and labour cost ₹300. The Unit Contribution is ₹200. If your shop rent is ₹10,000 a month, you can easily calculate that you must sell exactly 50 shirts (10,000 ÷ 200) to pay the landlord. The 51st shirt gives you ₹200 in pure profit.
Selling Price = ₹1,200.
Direct Materials = ₹400.
Direct Labour = ₹300.
Variable Selling Commission = ₹100.
Unit Contribution = 1,200 – (400 + 300 + 100) = ₹400 per unit.
(Notice Fixed Overheads are completely ignored).
- Identify the Selling Price of the product.
- Identify ALL Variable Costs (Material, Labour, Variable Factory OH, Variable Selling Commissions).
- Subtract Total Variable Costs from Selling Price.
- Use this number as the denominator in the BEP (Units) formula.
| Unit Contribution vs. Gross Profit per Unit | Gross Profit subtracts Fixed Factory Overheads (Absorption Costing). Contribution subtracts NO fixed costs, but does subtract Variable Selling costs (Marginal Costing). |
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11 Utility Costing (Power/Boiler House)
| Category | Operating / Service Costing |
|---|---|
| Best Used In | Internal service departments providing power or steam |
| Key Formula | Total Utility Cost ÷ Total Units Generated (kWh or Kg of Steam) |
| Exam Importance | High |
Utility Costing is a specific application of Operating (Service) Costing used to calculate the cost of generating internal utilities like electricity, steam, compressed air, or purified water within a massive manufacturing plant.
Instead of buying electricity from the city, large factories run their own Power Houses. The accountant must treat the Power House like its own mini-business, calculate the cost of generating 1 kilowatt-hour (kWh), and then “bill” that cost to the various production departments based on their meter readings.
- Secondary apportionment of Service Department costs
- Evaluating whether to generate power internally or buy from the grid (Make vs Buy)
- Costing in chemical, steel, and textile industries
A textile mill has a Boiler House that generates steam. The costs (coal, water, boilerman wages, depreciation of the boiler) total ₹5 Lakhs for the month. They generated 1,00,000 kg of steam. The cost is ₹5 per kg. If the Dyeing department used 40,000 kg of steam, it is charged ₹2,00,000.
Standing Charges: Depreciation, Insurance, Supervisor Salary = ₹50,000.
Running Charges: Coal, Water, Maintenance = ₹1,50,000.
Total Cost = ₹2,00,000.
Electricity Generated = 1,00,000 kWh.
Cost per kWh = 2,00,000 ÷ 1,00,000 = ₹2.00 per unit.
- Gather all expenses related strictly to the utility building.
- Categorize into Standing (Fixed) and Running (Variable).
- Identify the physical output metric (Cubic feet of air, kWh of power).
- Divide to find the internal rate.
- Use this rate in the “Step-Down” or “Simultaneous Equation” method to apportion costs to production.
| Utility Costing vs. Transport Costing | Both are Service Costing. Transport uses a composite unit (Tonne-Km). Utility usually uses a simple absolute unit (Kilowatts) measured by a physical meter on the wall. |
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12 Utilization Variance (Capacity Variance)
| Category | Standard Costing (Fixed Overheads) |
|---|---|
| Best Used In | Measuring idle factory time |
| Key Formula | (Actual Hours − Budgeted Hours) × Standard Fixed Rate |
| Exam Importance | High |
Utilization Variance (formally known as Fixed Overhead Capacity Variance) measures the financial impact of running the factory for more or fewer actual hours than originally budgeted.
If you rent a factory for 200 hours a month, but due to a strike or lack of orders, you only run the machines for 180 hours, you failed to “utilize” your capacity. You paid rent for 20 hours of nothing. This variance assigns a strict dollar penalty to that idle capacity.
- Sub-division of the Fixed Overhead Volume Variance
- Holding top management accountable for sales/order shortages
- Tracking the cost of strikes or material supply chain failures
Budgeted hours = 10,000. The Standard Fixed OH Rate is ₹50/hr. The factory only works 9,000 actual hours because there was a shortage of raw steel. The 1,000 missing hours represent an Adverse Utilization Variance of ₹50,000. Management sees that the supply chain failure didn’t just delay products; it wasted ₹50k in unrecovered factory rent.
Budgeted Hours (BH) = 5,000 hrs.
Actual Hours Worked (AH) = 5,200 hrs.
Standard Fixed Rate (SR) = ₹10/hr.
Capacity/Utilization Variance = (5,200 – 5,000) × 10 = ₹2,000 (Favorable).
The factory worked overtime, utilizing MORE capacity than planned, absorbing extra fixed costs.
- Identify the original Budgeted Hours.
- Identify the Actual Hours the machines were turned on and running.
- If Actual > Budgeted, it’s Favorable (you squeezed extra juice out of the factory).
- Multiply the hour difference by the Standard Fixed Overhead Rate.
| Utilization Variance vs. Efficiency Variance | Utilization asks: “Did the factory stay open for 8 hours?” (Did we work?). Efficiency asks: “During those 8 hours, did the workers build things fast or slow?” (How well did we work?). |
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13 Unexpired Cost
| Category | Cost Accounting Principles |
|---|---|
| Best Used In | Balance Sheet classification, Inventory valuation |
| Key Formula | Treated as an Asset until consumed |
| Exam Importance | Medium |
An Unexpired Cost is an expenditure that has been incurred but has not yet been consumed, used up, or sold. Because it still holds future economic benefit, it is classified as an Asset on the Balance Sheet.
The core of accounting is the Matching Principle. You don’t expense a cost until it generates revenue. Unexpired costs are waiting in limbo. The moment they are used or sold, they “expire” and are transferred to the Income Statement as an Expense (like COGS or Depreciation).
- Valuing Raw Material and Finished Goods inventory
- Accounting for Prepaid Expenses (Insurance, Rent)
- Capitalizing fixed assets
A company pays ₹12 Lakhs on Jan 1st for a 1-year factory insurance policy. On Jan 31st, ₹1 Lakh has “expired” and is charged to Factory Overheads. The remaining ₹11 Lakhs is an Unexpired Cost and sits on the Balance Sheet as a Prepaid Asset, waiting to be consumed over the next 11 months.
1. Buy Wood for ₹10,000 → Unexpired Cost (Asset: Raw Material Inventory).
2. Build a Table → Unexpired Cost (Asset: Finished Goods Inventory).
3. Sell Table → Expired Cost (Expense: Cost of Goods Sold on P&L).
- Identify cash paid or liabilities incurred for resources.
- At month-end, evaluate how much of that resource was physically used or time-lapsed.
- Push the used portion to the Income Statement.
- Hold the remaining unused portion safely on the Balance Sheet.
| Unexpired Cost vs. Sunk Cost | Unexpired costs have future value (you can sell the inventory). Sunk costs have zero future value (money spent on failed R&D) and must be expired immediately. |
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14 Unproductive Wages
| Category | Labour Costing |
|---|---|
| Best Used In | Overhead classification, Idle time tracking |
| Key Formula | Treated as Factory Overhead or P&L Loss |
| Exam Importance | High |
Unproductive Wages are payments made to workers for time spent not actively manufacturing or converting raw materials into finished goods. It is the financial manifestation of idle time or indirect labour.
If a direct labourer is paid ₹100/hr, but spends 2 hours cleaning their machine or waiting for materials to arrive, those 2 hours produced zero goods. The ₹200 paid is “unproductive.” It cannot be charged to Prime Cost; it must be stripped out and dumped into Factory Overheads.
- Cost Sheet preparation (separating Direct vs Indirect wages)
- Identifying efficiency bottlenecks in production
- Calculating Normal vs Abnormal Idle Time
A worker is clocked in for 8 hours. They spend 6 hours welding pipes (Productive Wages = Prime Cost). They spend 2 hours in a mandatory safety training meeting (Unproductive Wages = Factory Overhead). The accountant splits the payroll slip to ensure the exact cost of the pipe isn’t unfairly inflated by the safety meeting.
Total Weekly Wages Paid = ₹5,000 (50 hours @ ₹100/hr).
Time spent on Jobs = 45 hours (₹4,500 → Direct Wages).
Time spent waiting for machine repair = 5 hours (₹500 → Unproductive Wages).
The ₹500 is transferred to Factory Overheads and absorbed across all jobs.
- Analyze worker timecards/job tickets.
- Aggregate all hours logged directly against specific job numbers.
- Take the remaining hours (breaks, waiting, cleaning, training).
- Multiply by the hourly rate. Route Normal unproductive time to Overheads. Route Abnormal unproductive time (strikes) directly to the P&L.
| Unproductive Wages vs. Indirect Labour | Indirect labour is someone hired to never touch the product (a janitor). Unproductive wages usually refer to a Direct Labourer who is temporarily prevented from touching the product. Both end up in Overheads. |
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15 Under-Capacity (Operating Below Normal Capacity)
| Category | Capacity Planning / Marginal Costing |
|---|---|
| Best Used In | Pricing Special Orders, Export Pricing |
| Key Formula | Opportunity Cost = Zero |
| Exam Importance | Extremely High (Case Studies) |
Under-Capacity is a scenario where a manufacturing facility is operating significantly below its Practical or Normal capacity, meaning there are idle machines, empty floor space, and underutilized fixed costs.
This is the most critical trigger for Marginal Costing decisions. When a factory is under-capacity, taking on a new order does NOT displace existing sales. Therefore, the Opportunity Cost is zero. Any special order that covers its Variable Cost and leaves even ₹1 of Contribution should be accepted to help pay the fixed rent.
- Accepting one-time special orders at massive discounts
- Dumping products in foreign export markets
- Deciding to Make internally rather than Buy
A printing press can print 10,000 books a month. They currently only have orders for 6,000 books. They are at Under-Capacity. A charity asks them to print 2,000 books for ₹50 each. The normal price is ₹100, and full cost is ₹80. But the Variable cost is only ₹40. Because they have idle machines, they take the job, earning ₹20 contribution per book (₹40,000 total) to help pay their fixed rent.
Scenario: Factory at 60% Capacity.
Variable Cost = ₹30. Fixed Cost Absorbed = ₹20. Total Cost = ₹50.
Customer offers to buy 1,000 units at ₹35.
Accounting Action: Ignore the ₹20 fixed cost (it’s sunk/unavoidable). Since ₹35 > ₹30, ACCEPT. The firm gains ₹5,000 in net cash.
- Verify the current capacity vs. the size of the new order.
- Ensure the new order will not push the factory past 100% (which would trigger Step Costs like overtime or new machines).
- Strip away all fixed costs.
- Price the job at Variable Cost + whatever small margin the customer will accept.
| Under-Capacity vs. Full Capacity | At full capacity, you must add lost profits (Opportunity Cost) to the Variable Cost. At under-capacity, Opportunity Cost is mathematically zero. |
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16 Urgent Order Pricing (Rush Orders)
| Category | Decision Making / Relevant Costing |
|---|---|
| Best Used In | Quoting for extreme deadlines |
| Key Formula | Standard VC + Overtime Premiums + Opportunity Cost + High Margin |
| Exam Importance | High |
Urgent Order Pricing is a customized pricing strategy used when a client requires a product or service to be delivered in an exceptionally tight, non-standard timeframe, disrupting normal factory operations.
Rush orders destroy normal efficiency. They require workers to stay late (Overtime Premiums), require air-freighting raw materials (Expedited Freight), and often require pushing other loyal customers’ orders to the back of the line (Opportunity Cost). All of these “Knock-on Costs” must be built into the quoted price.
- B2B manufacturing (emergency spare parts)
- Logistics and courier services (Next-day air)
- Calculating the true cost of disrupting the production schedule
A client needs 500 widgets by tomorrow morning. The standard variable cost is ₹100/unit. However, to do it, the factory must pay ₹20,000 in overtime wages, and they have to delay another client’s order, resulting in a ₹10,000 penalty fee. The relevant cost is ₹50,000 (Standard VC) + ₹30,000 (Urgency Costs). The absolute minimum price to quote is ₹160/unit, plus a hefty profit margin for the stress.
Base Variable Material & Labour: ₹50,000
Overtime Premium for workers: ₹15,000
Air Freight for materials: ₹5,000
Lost contribution from delayed normal orders: ₹20,000
Total Relevant Cost: ₹90,000.
Quote Price (assuming 20% margin): ₹1,08,000.
- Calculate base materials and labour.
- Identify all step-costs triggered by the deadline (overtime, extra shifts, rush delivery).
- Identify if regular jobs will be canceled. If yes, add their lost Contribution Margin to the cost.
- Apply a premium markup, as the client’s price elasticity is usually very low (they are desperate).
| Urgent Order vs. Special Order | A Special Order is usually a request for a discount during idle time. An Urgent Order is a request for speed, usually demanding a massive price premium. |
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17 Unallocated Overheads (Corporate Overheads)
| Category | Responsibility Accounting / Segment Reporting |
|---|---|
| Best Used In | Evaluating true divisional performance |
| Key Formula | Excluded from Divisional Controllable Profit |
| Exam Importance | Medium |
Unallocated Overheads are high-level, general corporate expenses that cannot be logically, fairly, or traceably assigned to any specific operating division or product line.
Items like the CEO’s salary, corporate legal fees, or the cost of the centralized head office building benefit the whole company. Arbitrarily forcing these costs onto Branch A and Branch B based on “Sales Revenue” distorts the branch managers’ performance scorecards. Good responsibility accounting leaves these costs “unallocated.”
- Segment Reporting (Ind AS 108)
- Performance appraisal of Profit Centres
- Preventing the “Death Spiral” of overhead allocation
Division A makes ₹5 Lakhs profit. Division B makes ₹3 Lakhs profit. Total corporate HQ costs are ₹4 Lakhs. An amateur accountant deducts ₹2L from each division. Div B now looks like it only makes ₹1L. A smart accountant leaves the ₹4L unallocated. They evaluate the managers on the 5L and 3L, and deduct the 4L only at the absolute bottom of the company-wide P&L.
Segment A Controllable Margin: ₹100
Segment B Controllable Margin: ₹80
Total Segment Margin: ₹180
Less: Unallocated Corporate Overheads: (₹50)
Net Company Profit: ₹130.
- Identify the expense (e.g., Audit fees for the parent company).
- Ask: “Did Branch A directly cause this expense?” (No).
- Ask: “Can Branch A’s manager control or stop this expense?” (No).
- Keep the expense isolated in a central corporate cost pool. Do not apportion it.
| Unallocated Overheads vs. Apportioned Overheads | Apportioned overheads have a logical driver (like factory rent by square footage). Unallocated overheads have no fair mathematical driver, so spreading them is just guesswork. |
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18 Unit Rate (Stores Ledger Issue Price)
| Category | Material Costing |
|---|---|
| Best Used In | Valuing material issues to production |
| Key Formula | Depends on FIFO, LIFO, or Weighted Average |
| Exam Importance | Very High |
The Unit Rate in a Stores Ledger is the specific financial price assigned to raw materials when they are physically issued from the warehouse to the factory floor.
Because materials are purchased at many different prices throughout the month due to inflation, the warehouse holds a mix of cheap and expensive inventory. The accountant must use a systematic rule (the Unit Rate) to decide whether to charge the factory the old cheap price (FIFO) or a blended average price (Weighted Average).
- Preparing the Stores Ledger Card
- Debiting the Work-In-Progress (WIP) Account accurately
- Compliance with Ind AS 2 for inventory valuation
The warehouse has 100 kg of steel bought at ₹50, and 100 kg bought at ₹60. The factory asks for 50 kg. The physical steel looks identical. The accountant uses the FIFO Unit Rate, charging the factory exactly ₹50/kg (₹2,500 total), leaving the expensive ₹60 steel on the books for later.
Batch 1: 200 units @ ₹10 = ₹2,000.
Batch 2: 300 units @ ₹15 = ₹4,500.
Total Value = ₹6,500. Total Units = 500.
Calculated Unit Rate = 6,500 ÷ 500 = ₹13/unit.
Any issues to the factory today are charged at exactly ₹13.
Weighted Average = Total Value in Stock ÷ Total Units in Stock.
- Select the company’s stated valuation policy (FIFO or W.Avg).
- Look at the chronological timeline of receipts.
- For FIFO, track the specific price “layers” and peel them off one by one.
- For Average, recalculate the master Unit Rate immediately after every single new purchase.
| LIFO Unit Rate | Last-In, First-Out charges the newest, most inflated price to the factory. While great for reducing taxes (lower profit), it is banned under Ind AS 2 and IFRS. |
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20 Unit Level Activities (ABC Costing)
| Category | Activity-Based Costing (ABC) |
|---|---|
| Best Used In | Cost Driver Hierarchy classification |
| Key Formula | Cost increases 1:1 with every unit produced |
| Exam Importance | High |
In Activity-Based Costing (ABC), Unit Level Activities are tasks or operations that must be performed every single time one individual physical unit of a product is manufactured.
This is the bottom tier of the ABC Cost Hierarchy. Because these activities happen 1:1 with production volume, their costs are perfectly variable. Examples include consuming direct materials, running a machine to cut one part, or performing a basic quality test on every single item.
- Classifying cost pools in ABC implementation
- Distinguishing true variable costs from batch or facility costs
- Pricing high-volume vs low-volume products accurately
In a smartphone factory, drilling the camera hole in the casing is a Unit Level Activity—if you make 1,000 phones, you must drill 1,000 holes. However, setting up the drill machine is a Batch Level Activity—you set it up once whether you drill 10 holes or 1,000. Under ABC, you charge drilling power per unit, but you spread setup costs per batch.
1. Unit-Level: Machine power, Direct Materials, Direct Labour.
2. Batch-Level: Machine Setups, Material Requisitions, Batch Inspections.
3. Product-Level: Product Design, Engineering updates for a specific model.
4. Facility-Level: Factory Rent, Factory Security (unrelated to volume).
- Identify the activity (e.g., Inserting 4 screws).
- Ask: “Does this happen for every single product that rolls off the line?” (Yes).
- Identify the cost driver (e.g., Number of screws / Machine time).
- Assign the cost strictly based on production volume.
| Unit-Level vs. Batch-Level | Unit-level costs rise with every single product. Batch-level costs rise only when a new group of products is started, penalizing small, customized production runs. |
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