What is profit fade?
Profit fade is when a job finishes at a lower margin than previously reported. It happens when estimated cost to complete was too low, or when work performed on unapproved change orders is negotiated down or written off at close.
Where it starts
Rarely in accounting. Almost always in the field, months before anyone sees it on a report.
Cost to complete was optimistic. A job budgeted at $800,000 that is actually tracking toward $920,000 reports a margin that does not exist until somebody revises the estimate. Until then every WIP row derived from it is wrong.
Change order work never got approved. Cost landed on the job, revenue was assumed, and at close the general contractor pays a fraction or nothing. Dodge Construction Network research found 77% of specialty contractors have written off change order work as bad debt.
Scope crept without paperwork. The crew did what was asked. Nobody generated an authorization. It is unrecoverable by the time anyone reconciles.
Why it is worse than a single loss
A one-off bad job is a commercial event. A pattern of fade is a reporting problem, and sureties treat the two very differently.
If jobs routinely finish below their reported margin, then every schedule you submit describes a profitability that will not survive to completion. The underwriter is no longer evaluating your business; they are discounting your numbers. That is considerably harder to repair than a single loss, because it persists across every future submission until enough clean closeouts accumulate to rebuild the record.
Catching it earlier
Fade is visible before it is reported, if anyone is looking. The signals are a cost to complete that has not moved in two months on a job that has, a rising count of unapproved change orders on a single project, and field supervisors raising conditions that have not reached a change order request.
All three are operational, not financial, which is why a WIP review attended only by accounting tends to find fade late.
Going deeper: How unapproved change orders quietly cap your bonding capacity