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Stage 3 · Keeping it running

CAS-12: Repairs and Maintenance Cost

Daily oiling, a burnt motor, a three-yearly overhaul and a fire in the store room. Which repairs belong in the uniforms’ cost?

What you will learn in CAS-12

  • What repairs and maintenance cost includes (§§4.8, 5.1, 5.2)
  • A repair or an improvement? (§5.7)
  • Outside work, overhauls and recoveries (§§5.3, 5.4, 5.9, 5.16)
  • Unusual events, assigning and showing the cost (§§5.14, 6, 7)

Chapters

  1. Kumar keeps the machines running · What it costs to keep machines working, and when a “repair” is really an upgrade (§§4.8, 5.1, 5.2, 5.6, 5.7)
  2. Outside repairs and the big overhaul · Price outside work fairly and spread a big overhaul over the years it serves (§§5.3, 5.4, 5.9, 5.10, 5.16)
  3. After the storm · Keep repairs from unusual events out, and send repairs to the work they served (§§5.14, 6.1–6.3, 7)
  4. Spot the mistakes in Kumar’s cost sheet · Use everything from this lesson (§§5.7, 5.9, 5.10, 5.14, 5.15)

Key terms

  • Repairs and maintenance cost (§§4.8, 5.1, 5.2, 5.6, 5.7): The cost of keeping or putting back a machine so it works as intended. Your own team’s work costs the materials, spares, people, equipment and power used. Spares count as repairs only if they do not make the machine better than before.
  • Outside repairs and overhauls (§§5.3, 5.4, 5.9, 5.10, 5.16): Work at the contractor’s shop costs the agreed price, without tax you get back. Work on your premises also counts what you supplied. A big overhaul is spread over the period it serves. Interest stays out. Insurance and other money recovered is taken off.
  • Assigning and showing repairs cost (§§5.14, 6.1–6.3, 7, 8): Repairs from unusual events like fire or flood stay out. Trace repairs to the department that used them where you can; share the rest as overheads (CAS-3). Show repairs as their own line, with details by asset and activity.

Common questions

How are major overhauls treated under CAS-12?

They are amortised on a rational basis over the period they benefit (para 5.9).

Are repairs after a flood part of cost?

No. Repairs from abnormal events are excluded, if material and quantifiable (para 5.14).

CAS-12 (Limited Revision 2017), Repairs and Maintenance Cost. Checked against the standard in November 2026. Selvi Garments, the school order and every figure in this lesson are fictional. Read the official text on the ICMAI Cost Accounting Standards page ↗ before applying it to real work.