Estimated Cost to Complete & Profit Fade

Welcome

Hello, and welcome. This is Super Structures General Contractors — a national general contractor headquartered in Powhatan, Virginia — here to help you and your clients build something that lasts. We're glad you're with us, and we look forward to connecting with you.

Alright, Estimated Cost to Complete & Profit Fade. Don't let the plain title fool you. Here's the part that actually matters on the job: The estimated cost to complete is the single most important number in construction accounting — it sets revenue, profit, and the WIP, and it is only as honest as the person who updates it. Learn it well and fade shows up early enough to fix instead of late enough to explain.

Everything in percentage-of-completion accounting runs through one estimate: the total estimated cost at completion (EAC). Cost to date is a fact; the estimated cost to complete (ETC) is a judgment. EAC = cost to date + ETC. Every other number on the job — percent complete, earned revenue, recognized profit, and the over or under billing on the WIP schedule — is derived from it.

The arithmetic

• Percent complete = cost to date ÷ EAC
• Earned revenue = percent complete × contract value (including approved changes)
• Gross profit to date = earned revenue − cost to date

If the EAC rises, percent complete falls, earned revenue falls, and profit already recognized in prior months reverses. That reversal is profit fade. If the EAC falls, the opposite happens and the job shows gain. The method is called cost-to-cost because cost is the measure of progress, which is exactly why an honest ETC matters more than any other input.

The monthly cost report

The ETC lives in the job cost report, which shows for each cost code:

• Original budget and approved budget changes
• Committed cost — executed subcontracts and purchase orders, whether or not billed yet
• Cost to date — what has actually been booked
• Estimated cost to complete — the project manager's forecast of what remains
• EAC and the variance against budget

The report is only as good as its last update. A code that has not been touched in three months is not "on budget"; it is unreviewed.

How to forecast the ETC

Code by code, every month:

• Bought-out subcontracts — remaining commitment plus pending subcontractor change orders, plus anything the sub has asked for that you expect to owe.
• Materials — remaining purchase orders plus quantities still to buy at current prices, not the prices in the estimate.
• Self-performed labor — units remaining × actual productivity to date, not budget productivity. If the crew is running 0.038 hours per square foot against a 0.030 budget, the remaining work will too unless something changes.
• General conditions — remaining months × the monthly run rate, using the current schedule. If the job has slipped two months, the trailer, the super, and the toilets slipped with it.
• Known risks — disputed changes, rework, weather exposure, and warranty items, with realistic amounts.

Pending owner change orders go in as both added contract value and added cost, at the probability they will be approved. Counting the revenue without the cost is the fastest way to manufacture profit that does not exist.

A labor forecast done two ways

A drywall code has a budget of 3,000 hours for 100,000 square feet. To date the crew has spent 1,900 hours and installed 50,000 square feet.

• Percent spent says: 1,900 of 3,000 hours used, so 1,100 hours remain.
• Units remaining says: 50,000 square feet left × 0.038 actual hours per square foot = 1,900 hours remain, and the code will finish at 3,800 hours, 800 over budget.

The first method hides an overrun that the second one surfaces with months left to react. The same logic applies to general conditions: six months remaining at a $45,000 monthly run rate is $270,000, but if the schedule has slipped to eight months the honest ETC is $360,000.

Fade and gain over the life of a job

Small, early adjustments in either direction are normal; a forecast that never moves is more suspicious than one that does. Late fade — margin collapsing in the last 20 percent of the job — is the pattern banks and other financial partners dislike most, because it means the forecasts all year were wrong and the financial statements built on them were too. Early recognition of a problem is a sign of control; late discovery is a sign of hope.

Going Deeper (Intermediate)

The ETC review is a meeting, not a form: the project manager, the superintendent, and the accountant or controller go through the cost report together, code by code. The super knows what is really left to do; the PM knows the changes and the subs; the accountant knows what has been booked and what is still sitting in unprocessed invoices. A forecast done alone by any one of them is weaker.

Beware the common biases: forecasting labor by percent of budget spent (60 percent of the labor budget spent at 40 percent done does not mean 60 percent complete), hoping a pending change will cover an overrun, and leaving a code "on budget" because it has been that way every month. The cure is a standing question for every code: what, specifically, is left, and what will it cost at today's rates?

Advanced / Pro-Level

Pros track earned value on self-performed work: budgeted cost of work performed versus actual cost, with a cost performance index by code — a CPI below 1.0 means every remaining unit will cost more than budget unless the method changes. They project profit by month so leadership sees the trajectory, not a point, and they review fade and gain across the whole portfolio, because one job's gain can mask another's fade.

They hold PMs accountable for forecast accuracy — the difference between what the job was forecast to make at 25, 50, and 75 percent complete and what it actually made — because an accurate forecaster is worth more than a lucky one. Under ASC 606, a job forecast to lose money requires the entire expected loss to be recognized immediately, not spread over the remaining work; that rule is a strong reason to know early, and a strong reason your CPA will ask about any job trending toward zero margin.

Practice Challenge

Contract $4,000,000. Original EAC $3,600,000 (10 percent margin). Cost to date $2,700,000; the PM's new ETC is $1,100,000. What are the new EAC, margin, and percent complete, and what happened to profit recognized? (Answer: EAC = $2,700,000 + $1,100,000 = $3,800,000, so margin drops to $200,000, or 5 percent. Percent complete = 2.7 ÷ 3.8 = 71 percent; earned revenue is about $2,842,000 and profit to date about $142,000. At the old EAC the job was 75 percent complete with $300,000 of profit recognized, so this month books a reversal of roughly $158,000. That is fade, and it should trigger a code-by-code review of why.)

In Practice

A contractor whose PMs forecast honestly every month sees margin move a point or two, knows which code moved it, and fixes what can be fixed. A contractor whose PMs forecast "on budget" until the last pay application sees a 10-point drop at closeout, a restated WIP schedule, and a banker who wants a meeting.

Common Mistakes to Avoid

• Forecasting labor by percent spent instead of by remaining units and real productivity
• Leaving general conditions tied to the original schedule
• Counting pending change orders as revenue but not as cost
• Forecasting alone instead of PM, super, and accounting together
• Treating an untouched "on budget" code as a reviewed one

Takeaway: The estimated cost to complete is the single most important number in construction accounting — it sets revenue, profit, and the WIP, and it is only as honest as the person who updates it.

Educational content — not accounting, tax, or legal advice. Accounting methods and tax rules depend on your entity, your size, and your contracts; work with a CPA who knows construction.