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Financialaka: CTCaka: estimate to completeaka: ETC

Cost to Complete

In Plain English

The estimated amount of money still needed to finish the remaining work on a project.

Definition

Cost to complete (CTC) is the estimated amount of money still needed to finish all remaining work on a project or a specific work scope. It is calculated by subtracting costs incurred to date from the total estimated cost at completion. CTC is a key metric in job cost reporting and earned value analysis, used to forecast final project profitability and identify overruns before they materialize.

Why It Matters in Bidding

Cost to complete is the forward-looking number that tells a contractor whether a job will finish in the black, making it central to monthly job-cost reporting and the WIP schedule that bonding companies and lenders scrutinize. An honest CTC exposes overruns while there is still time to act, and it feeds the profit forecasts that inform future bidding and cash-flow planning.

Example

At the 70% complete milestone, the project manager revised the cost to complete upward after labor productivity lagged, signaling a margin fade that prompted the team to tighten subcontractor scope on the remaining work.

Related Terms

Job CostingEarned ValueCost OverrunWork in Progress (WIP)

Frequently Asked Questions

Cost to complete equals the estimated total cost at completion minus costs incurred to date, scope by scope. Teams forecast remaining quantities and productivity rather than simply assuming the budget balance is correct. Reviewing committed costs, open purchase orders, and trends in actual unit costs produces a more reliable figure than a straight budget subtraction.
Estimate at completion is the projected total cost for the entire job, while cost to complete is only the remaining portion still to be spent. EAC equals costs incurred to date plus cost to complete. CTC drives the forecast, and EAC compared to the contract value reveals projected profit or loss.
Percentage of completion recognizes revenue based on costs incurred against total estimated cost, so an accurate cost to complete directly determines reported earnings each period. An understated CTC overstates current profit and forces a later writedown. Bonding agents and auditors examine CTC assumptions closely on the work-in-progress schedule for that reason.

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