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CMA Intermediate · Cost Accounting · Cost Accounting Standards (CAS 1 to CAS 24)

Under the Cost Accounting Standard on Joint Costs (CAS 18), the common costs incurred up to the split-off point are best described as costs that:

Joint costs are costs of a common process that simultaneously produces two or more products, so they cannot be traced individually before the split-off point. They are therefore apportioned to joint products and by-products using a rational basis, unlike direct costs or costs incurred after separation.

  1. ACan be traced directly to each joint product without any apportionment
  2. BAre incurred for the production of two or more products simultaneously and need apportionment to the joint products and by-productsCorrect
  3. CAre incurred only after the products have been separated
  4. DAre always charged entirely to the main product and not to any other output

Explanation

Joint costs arise when a single process yields two or more products that cannot be separately identified until the split-off point. Because they cannot be traced directly, they must be apportioned on a rational basis. Option A describes direct costs, and option C describes post-separation costs.

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