TL;DR. On most long DoD contracts, profit is booked as the work gets done. Change your EAC and the correction for every past month lands in one quarter.
- New to this? EAC is the Estimate at Completion, what the whole contract is expected to cost. Finance uses it to decide how much profit you've earned so far.
- Contractor PM? In our example, a $1.5M overrun found in September turns $2M of real work into a $649K loss for the quarter.
- Leading several programs? Keep an R&O (Risks and Opportunities) list so you can see when one program's good news already covers another's bad news.
- Everyone: the quarter doesn't punish the overrun. It punishes the surprise. Nobody wants their name on slide 14.
Payroll emails you on a Friday afternoon.
"Small correction. We've been overpaying you since January. We'll take the difference out of this month's check."
You worked a full month. You did good work. And your paycheck is negative.
Nothing went wrong this month. This month just got the bill for every month before it.
Hold onto that feeling, because it's the fastest way to understand why defense contractors have bad quarters. Finance even has a polite name for it: a cumulative catch-up. I'm going to call it what it feels like. The clawback.
Meanwhile, on Slide 14
If you're a program manager (PM) on the contractor side, you may have lived the work version of this.
It's the second week of October. The quarterly business review is going fine. Then the chief financial officer (CFO) clicks to slide 14, and slide 14 has your program's name on it.
Back in September, you raised your EAC. Integration was running long. It was an honest update, and it felt like a program problem.
Turns out it was a company problem. Here's why.
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Your EAC Is Secretly a Revenue Number
EAC stands for Estimate at Completion: your best guess of what the whole contract will cost by the time it's done.
Most PMs treat it as a program management number. Finance treats it as something else entirely.
On most long-term Department of Defense (DoD) contracts, the company doesn't wait until the end to count revenue and profit. It counts them as the work gets done. And the most common way to measure "how done" is simple:
Percent complete = cost spent so far ÷ EAC
Profit gets counted the same way. If you're 50% complete, the company has already booked 50% of the contract's expected profit.
So when your EAC changes, two things change at once: how "done" you are, and how much profit the whole job will make. Which means the profit the company already booked is now wrong.
It gets fixed all at once. In this quarter. That's the clawback.
The Math (Four Lines, Promise)
Here's a simplified example. It's the same one we use in the lesson.
- The deal: a $20M firm-fixed-price contract. Planned cost: $17M. Planned profit: $3M, a 15% margin.
- End of Q2 (the second quarter): you've spent $8.5M, so you're 50% complete. The company has booked $1.5M of profit.
- During Q3: your team spends another $2M. At the September review, you raise the EAC to $18.5M. Total expected profit drops to $1.5M (7.5%).
Now finance recalculates everything:
- New percent complete: $10.5M ÷ $18.5M = about 57%
- Profit "earned" to date at the new margin: 57% × $1.5M = about $851K
- Profit already on the books: $1.5M
- Q3 profit: $851K minus $1.5M = negative $649K
Your team did $2M of real work in Q3. The quarter still shows a loss.
Here's the part that stings. If the EAC hadn't moved, Q3 would have shown a gain of about $353K. So the swing between what the CFO expected and what actually got booked is roughly $1M. From one program. In one quarter.
That's slide 14.
Why It Hits Twice
A mid-program EAC increase lands in two places:
- The past. Profit already booked on work you finished gets taken back, right now. (The clawback.)
- The future. Every dollar of work left on the contract now earns at the lower margin.
So the pain doesn't spread politely across the life of the contract. A big chunk of it shows up in one quarter, with your name on the slide.
The Good News: Back Pay Works the Same Way
The clawback has a happy twin.
Go back to that payroll email. Now imagine it says, "We've been underpaying you since January." All of that lands in one check too.
Same with your EAC. Retire a risk, close out a subcontract under budget, or pass a test on the first try, and the EAC comes down. The company recalculates profit at the higher margin and books the gain this quarter.
This is why programs often look better in their final stretch. It's also why a padded EAC that never comes down is a problem: that's profit the company earned and never got credit for on time.
How to Keep Your Program Off Slide 14
The goal isn't a perfect EAC. The goal is a boring one. Finance loves an estimate that moves in small, well-explained steps.
- Update monthly, not quarterly. Spot a $200K problem in July? Tell finance in July, not at the September lock. Small moves get absorbed. Surprises get a slide.
- Split timing from true cost growth. Work that slipped right but costs the same doesn't change the EAC. Work that costs more does. Report them separately.
- Put every risk and opportunity on the R&O. Good news included. More on that next, because it's the big one.
The R&O: Nobody Gets Left in the Dark
Most defense contractors keep an R&O, short for Risks and Opportunities. It's one list of everything that could move the program's money, good or bad, with odds and dollars attached. It gets updated every month with the EAC, and it rolls up so a leader can see every program's list on one page.
Every line gets a likelihood, an impact, and a weighted value (likelihood × impact). Here's a tiny one:
| Item | Odds | Impact | Weighted |
|---|---|---|---|
| Risk: testing runs 6 weeks long | 60% | −$600K | −$360K |
| Risk: supplier raises prices | 30% | −$400K | −$120K |
| Opportunity: cabling sub under budget | 75% | +$400K | +$300K |
On its own, the testing risk is a $600K scare. Next to the cabling opportunity landing in the same quarter, it nets to about −$60K. That's the whole point of an R&O: a leader looking at the full board can see when one team's good news already covers another team's bad news, before anyone calls the CFO.
(Keep the gross numbers visible, though. If both risks hit and the opportunity doesn't, this little list is still a $1M problem.)
It also fixes the clawback. A risk that's been on the R&O since July isn't a surprise in September. Finance saw it coming, sized it, and maybe set money aside. And an opportunity on the R&O gets claimed on time, instead of sitting in someone's back pocket as a "cushion."
The Takeaway
The quarter doesn't punish you for the overrun. It punishes you for the surprise.
Every month a known problem stays out of the EAC, the company keeps booking profit at a margin you already know is wrong. Which means the clawback, when it finally comes, is bigger.
You can't always avoid the clawback. But you do get to choose whether it's a small one everybody saw coming, or a big one on slide 14.