Yes, almost certainly. A contractor pays for labor weekly and materials on 30 day terms, bills monthly, gets paid 30 to 60 days after that, and then waits until closeout for the retainage. The gap between money going out and money coming in is a loan you are extending to the project owner, interest free and unsecured. On a $2 million book of work, that loan is routinely $250,000 to $400,000 of your own capital.
Profit and cash are different animals. A contractor can post the best margin in company history and still miss payroll, because the profit is real and it is sitting in someone else's bank account.
The timeline nobody puts in the bid.
Follow one week of work on a commercial job through to the money actually landing.
| Day | Event | Cash effect |
|---|---|---|
| 1–5 | Crew performs the work | |
| 7 | Payroll runs, including burden | Cash out |
| 10 | Material invoices arrive, net 30 | |
| 30 | Month ends, pay application prepared | |
| 40 | Material suppliers paid | Cash out |
| 35–45 | Architect reviews and certifies the application | |
| 65–90 | Payment received, less retainage | Cash in, partial |
| Closeout + 30–90 | Retainage released | Cash in, remainder |
For that one week of work, the contractor is out of pocket from day 7 and made whole somewhere between day 65 and, for the retained portion, month nine. Every week of work stacks another one of these on top. At steady state the contractor is permanently carrying roughly two months of cost plus the entire retainage balance.
That is not a cash flow problem in the sense of a temporary crunch. It is the structural working capital requirement of the business, and it scales up with revenue.
Calculate what you are carrying right now.
You do not need a model. Four numbers off your own balance sheet and aging reports:
| Line | Where it comes from | Example, $2M contractor |
|---|---|---|
| Accounts receivable, current portion | AR aging, excluding retainage | $210,000 |
| Retainage receivable | Balance sheet or WIP schedule | $96,000 |
| Underbillings (costs in excess of billings) | WIP schedule | $74,000 |
| Less: accounts payable and retainage payable | AP aging | −$128,000 |
| Net cash you are financing | $252,000 |
That $252,000 is your money, funding someone else's project, earning nothing. If you carry a line of credit to bridge it at 9 percent, the cost of that structure is over $22,000 a year, which for many contractors is a meaningful share of net profit. If you fund it from your own capital instead, the cost is invisible but the constraint is worse: it is the reason you cannot take the next job.
Where the money hides.
1. Retainage
Commonly 5 to 10 percent of each payment, held until substantial completion or later. It is the most visible piece and the most often accepted as unchangeable. It is frequently negotiable: reduction at 50 percent completion, release of retainage on early-finishing scopes, or a retention bond in place of cash are all standard asks. On public work in Georgia, retainage on state and local public contracts is limited by statute and subject to reduction once the work reaches defined progress, so the ask on those jobs has legal backing. Confirm the specific requirement for your contract with counsel.
2. Pay-when-paid running downhill
If you are a subcontractor, your payment terms often depend on the general contractor being paid first, and that chain can be long. Georgia's prompt pay statute sets default timeframes for payment from owner to contractor and from contractor to subcontractor on private work, but contracts routinely modify what is modifiable. The relevant question at bid time is not just the rate, it is who is holding the risk of the owner being slow.
3. Change orders performed but not priced
This is the largest hidden number in most contractors' books and it never appears anywhere. The field performs directed work, everyone agrees it will be handled, and nothing is priced or submitted for weeks. Until it is billed it is pure contractor financing, and if it drifts long enough it becomes a claim rather than an invoice. A change order that is not in writing within days of the direction is at risk of never being collected at all.
4. Underbilling
Underbilling means you have earned more revenue than you have invoiced. It looks harmless on a P&L. On the balance sheet it is cost sitting in an asset account instead of cash in the bank, and to a surety it reads as either poor billing discipline or optimistic cost reporting. Both readings hurt. This is why the WIP schedule matters as an operating report and not only as a year end exercise.
Growth makes all four of these worse at once. Take on 40 percent more work and the receivable balance, the retainage balance and the underbilling all grow by roughly 40 percent, while the cash to fund them has to come from the profit of the smaller company you were last year. This is the mechanism behind the oldest pattern in construction: contractors fail more often on the way up than on the way down.
Seven levers that actually move cash.
- Bill on the first of the month, without exception. A pay application submitted four days late does not arrive four days late, it usually misses the owner's payment cycle entirely and arrives a month late. This is the cheapest lever available and the one most often left unpulled.
- Front load the schedule of values. Weight mobilization and early scopes as heavily as the contract permits. Legitimate, standard, and it shifts your break-even point weeks earlier on every job.
- Negotiate retainage reduction at 50 percent. Ask at contract signing, not at month six. It is a routine term and frequently granted when raised early.
- Price and submit change orders within 48 hours of direction. Make it a field requirement with a form, not a back office task. Every week of drift reduces the probability of full collection.
- Match subcontract terms to owner terms. If you are paid in 60 days and you pay subs in 30, you are financing them too, on top of the owner.
- Take the supplier discount only when the math works. Two percent for paying 20 days early is an extremely high effective annual rate, and worth taking if you have the cash. It is not worth drawing on a line of credit to chase.
- Report the cash conversion number monthly. Track the four-line calculation above every month alongside the WIP schedule. What gets reported gets managed, and this number is invisible on both the P&L and the tax return.
What this does to your bonding line.
Working capital is the first thing a surety underwriter computes, and the pieces above are exactly the pieces that determine it. Retainage classified as long term, receivables aged past 90 days, and large underbillings all reduce the working capital a surety will credit you with, which directly reduces the size of the job they will bond and the aggregate program they will support.
Two contractors with identical revenue and identical profit can receive very different bonding lines based entirely on how quickly they convert work into cash. If you are trying to move up in job size, this is not a back office topic. It is the constraint. Our bonding capacity calculator shows how the numbers translate, and the fuller picture is in how to increase your bonding capacity.
Retainage limits, prompt pay timeframes and lien rights vary by contract type, by public versus private work, and by state. Confirm the requirements that apply to your specific contracts with construction counsel.