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Microlesson · 5-min read

Overtime — Definition, Calculation, Legal Provision, and Treatment

## Overtime — Key Concepts

Overtime work: Work done beyond normal working hours.

Overtime payment has two components:

1. Normal wages for the overtime hours worked

2. Overtime premium — the extra amount paid above the normal rate for working beyond normal hours

Example: If normal rate = ₹100/hr and overtime rate = ₹200/hr:

  • Normal wages portion = ₹100/hr
  • Overtime premium = ₹100/hr

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## Legal Provision — Factories Act 1948

If a factory worker works more than 9 hours in a day or more than 48 hours in a week, they are entitled to wages at twice the ordinary rate for the overtime portion.

Ordinary rate of wages includes:

  • Basic wages
  • Relevant allowances
  • Cash equivalent of certain perquisites (e.g., concessional food grain)

Ordinary rate excludes: Bonuses and wages for overtime work itself.

Piece-rate workers: Overtime is calculated using the daily average of full-time earnings in the previous month as the time-equivalent rate.

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## Occasional vs. Persistent Overtime

TypeImplication
Occasional overtimeHealthy sign — firm operating at optimum capacity
Persistent overtimeWarning sign — indicates capacity shortfall or habit of delaying work

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## Accounting Treatment — Based on Cause

Reason for OvertimeTreatment of Overtime Premium
Customer's special request / urgencyCharged directly to that customer's job
General production shortfall / urgent ordersCharged to departmental overhead of the department working overtime
Fault of another department causing this dept to work lateCharged to the department at fault
Abnormal conditions (flood, earthquake, etc.)Charged to Costing P&L Account — not to production cost

Worked example

### Example 1

Overtime Calculation under Factories Act:

Worker's basic wage: ₹600/day (48-hour week, 8 hrs/day × 6 days)

Hourly rate = ₹600 ÷ 8 = ₹75/hour

Ordinary rate = ₹75/hour

Overtime rate = 2 × ₹75 = ₹150/hour

Overtime hours worked this week: 12 hours

Overtime payment = 12 × ₹150 = ₹1,800

Of which:

  • Normal wages element = 12 × ₹75 = ₹900
  • Overtime premium = 12 × ₹75 = ₹900

### Example 2

Overtime Treatment — Different Causes:

Department B works 6 overtime hours due to three different reasons:

1. Customer urgency (2 hrs): Premium = 2 × ₹75 = ₹150 → Debited directly to Customer Job Card

2. General production backlog (2 hrs): Premium = ₹150 → Added to Dept B's overhead pool

3. Dept A delayed sending semi-finished goods (2 hrs): Premium = ₹150 → Charged to Dept A's overhead (Dept B should not bear this cost)

Total overtime premium = ₹450, distributed across three accounts — not lumped into one.

⚠️ Common exam mistakes

  • Adding overtime premium to product cost regardless of the reason — the cause determines the treatment (job, department overhead, or P&L)
  • Calculating overtime at 1.5× instead of 2× under Factories Act — the Act mandates double the ordinary rate, not time-and-a-half
  • Including bonuses in the 'ordinary rate of wages' for overtime calculation — ordinary rate excludes bonuses
  • Treating persistent overtime as a positive productivity indicator — it signals a capacity or management problem
  • Charging abnormal-cause overtime (flood, fire) to overhead — it must go to Costing P&L Account
Bare-Act text Section 59 · Factories Act, 1948 · click to expand
If a worker works in a factory for more than nine hours in any day or more than forty-eight hours in any week, they shall be entitled to wages at twice their ordinary rate of wages for overtime work.
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