Introduction
It happens more often than anyone would like: a subcontractor — electrical, mechanical, framing, or finishing — becomes insolvent or simply abandons a project mid-stream. For the general or prime contractor, this creates an immediate operational problem (the work must be completed) and a financial problem (the work already done may not have been fully paid for, and the work remaining will cost more to replace). The tax and legal consequences follow from how the fallout is handled.
Scenario: A Mechanical Subcontractor Abandons a Commercial Project
BuildRight Construction is the general contractor on a $2.4 million commercial fit-out in Hamilton. Their mechanical subcontractor — a small plumbing and HVAC firm — goes into receivership in month three of a six-month project. The subcontractor has completed approximately $280,000 of a $420,000 subcontract. BuildRight has paid $180,000 of the $280,000 earned; $100,000 remains unpaid and is caught in the receivership.
The Immediate Financial Exposure
BuildRight faces several layers of financial exposure:
Overpaid work: If the $180,000 paid represents work that was not actually completed to specification, some of that payment may be unrecoverable. In a receivership, BuildRight becomes an unsecured creditor for any claims against the insolvent subcontractor.
Holdback complications: The $28,000 holdback (10% of $280,000) retained by BuildRight on the mechanical subcontract is subject to potential lien claims from the subcontractor's suppliers and employees. Before that holdback is released or applied elsewhere, BuildRight must ensure the lien period has expired and no liens have been registered by parties down the subcontractor's payment chain.
Completion costs: Replacing the subcontractor with a substitute to complete the remaining $140,000 of mechanical work will almost certainly cost more than the original subcontract price — given the mid-project start, access constraints, and the sub's existing work that must be evaluated before proceeding.
Tax Treatment of the Financial Fallout
Unrecoverable payments (bad debt): The $100,000 remaining payable to the insolvent subcontractor — work performed but not yet paid — may be recoverable through the receivership process, though typically at cents on the dollar. Once it is established that the amount is not recoverable, BuildRight can write it off as a bad debt. For HST purposes, the HST component of the unpaid invoice may be eligible for a bad debt adjustment under section 231 of the Excise Tax Act (as discussed in Article 84), recovering the HST that was never paid to BuildRight but was previously remitted.
Increased completion costs: The additional cost of engaging a substitute subcontractor — above the original subcontract price for the incomplete work — is a deductible project cost. This increases the project's total cost, reducing the margin on the contract.
Insurance claim proceeds: Where the general contractor carries performance bond coverage or contractor's insurance that responds to a subcontractor default, any insurance proceeds received are taxable income to the extent they compensate for deductible losses (i.e., costs that were deducted or will be deducted). This is the mirror of the deductibility principle — you cannot deduct a cost and exclude the insurance recovery from income.
Protecting Against This in Future Projects
The BuildRight scenario illustrates why subcontractor financial due diligence — WSIB clearance, WCB compliance, bonding capacity — is not a formality. A subcontractor performance bond, where the value of the subcontract justifies the premium, provides recourse when a subcontractor defaults. The cost of the bond premium is a deductible project cost.
When to Speak With a CPA
For a general contractor managing the financial fallout of a subcontractor insolvency — particularly where bad debt, insurance recoveries, and completion cost accounting are all in play simultaneously — a CPA who understands construction project accounting can ensure the income, losses, and tax adjustments are handled correctly across the affected project and fiscal year.