Which contract type shifts most cost risk to the buyer?

Which contract type shifts most cost risk to the buyer?

• A. Fixed-price contracts.
• B. Cost-reimbursable contracts.
• C. Time and materials contracts.
• D. Lump-sum contracts.

Answer: (B)

The idea is how cost uncertainty is allocated between buyer and seller. In a cost-reimbursable contract, the buyer agrees to reimburse the contractor for all legitimate costs incurred, plus an agreed fee. Because the total price isn’t fixed in advance, the final amount depends on actual costs, which means the buyer bears the majority of the cost risk. The contractor’s payoff is tied to reimbursable costs and not to a capped total, so they don’t shoulder the same financial risk for overruns. By contrast, a fixed-price (lump-sum) contract sets a single price for the entire work, so the seller takes on most of the cost risk—if costs rise, their profit shrinks; if costs stay low, they may earn more. Time and materials contracts mix labor costs and rates, so there is some cost risk to the buyer if hours or rates increase, but it isn’t as unbounded as in a pure cost-reimbursable arrangement. So, the contract type that shifts the most cost risk to the buyer is the cost-reimbursable contract.

The idea is how cost uncertainty is allocated between buyer and seller. In a cost-reimbursable contract, the buyer agrees to reimburse the contractor for all legitimate costs incurred, plus an agreed fee. Because the total price isn’t fixed in advance, the final amount depends on actual costs, which means the buyer bears the majority of the cost risk. The contractor’s payoff is tied to reimbursable costs and not to a capped total, so they don’t shoulder the same financial risk for overruns.

By contrast, a fixed-price (lump-sum) contract sets a single price for the entire work, so the seller takes on most of the cost risk—if costs rise, their profit shrinks; if costs stay low, they may earn more. Time and materials contracts mix labor costs and rates, so there is some cost risk to the buyer if hours or rates increase, but it isn’t as unbounded as in a pure cost-reimbursable arrangement.

So, the contract type that shifts the most cost risk to the buyer is the cost-reimbursable contract.