18 DAYS BETWEEN WORK AND INVOICE IS NORMAL. IT SHOULDN'T BE.
QUICK ANSWER
Billing cycle time is the number of days between when work is performed and when the invoice is submitted to the GC. The industry average for commercial subcontractors is 18 to 22 days. SPM targets 5 to 7 days. That 13 to 15 day gap — on $500K in monthly billing — represents $215K to $250K in cash the business earned but hasn't yet asked to be paid for. It is the single most recoverable cash problem in most subcontracting businesses.
WORK DONE FRIDAY. INVOICE SUBMITTED MONDAY. THAT IS THE TARGET.
BY JOSH LUEBKERPublished: June 2026Updated: June 2026
Why Billing Cycle Time Runs Long
BILLING IS BATCHED MONTHLY, NOT CONTINUOUSMost subcontractors gather everything at month end and send one invoice per project. Work done on the 3rd doesn't get billed until the 31st. That is up to 28 days of billing lag on work completed early in the month — and if the GC's cutoff is the 22nd, that work waits until the following month.
PAY APPLICATION ASSEMBLY TAKES TIMEThe G702/G703 doesn't assemble itself. Someone has to pull the cost-to-date, calculate percent complete, update the SOV, prepare the lien waiver, and format the submission. If that process isn't streamlined, it takes 3 to 5 days at month end — pushing submissions past the GC's cutoff date and into the next cycle.
CHANGE ORDER BILLING LAGS THE BASE CONTRACTEven when base contract billing goes out on time, COs often lag 30 to 60 days behind. The CO was approved verbally. The written paperwork wasn't filed. When someone finally puts together the CO invoice, 2 months of work has been funded without billing. On a project with active change orders, this can represent 15 to 25% of contract value sitting unbilled.
NO BILLING CALENDAR EXISTSWithout a billing calendar that maps each project's GC cutoff date and stages the billing work 5 days before that date, billing happens reactively — when someone gets around to it or when the GC asks where the invoice is. Reactive billing is always late billing.
What Each Day of Lag Costs
On $500K in monthly billing ($6M annual revenue), each day of billing lag equals approximately $16,400 in float — cash earned but not yet in the billing cycle. The table below shows the total float at common lag levels:
$82K
Float at 5-Day Lag (SPM Target)
$246K
Float at 15-Day Lag
$328K
Float at 20-Day Lag (Industry Average)
$492K
Float at 30-Day Lag
Moving from 20-day lag (industry average) to 5-day lag (SPM target) recovers approximately $246K in cash timing on $6M in annual revenue. That cash was already earned. The billing system just wasn't pulling it forward.
How CFOS Reduces Billing Cycle Time
GC CUTOFF CALENDAR BUILT AT CONTRACT SIGNINGEvery project's GC billing cutoff date mapped at signing. Billing work staged to start 7 days before cutoff. Invoice submitted 5 days before cutoff. This eliminates the most common cause of billing delay — missing the cutoff and waiting 30 extra days.
PAY APPLICATION TEMPLATE PREPARED AT CONTRACT SIGNINGSOV formatted, G702/G703 template set up, lien waiver form identified, and submission package organized at contract signing — not at first billing. Monthly billing then takes 2 to 3 hours rather than a day of assembly under pressure.
CHANGE ORDER BILLING INTEGRATED INTO MONTHLY CYCLEEvery approved CO invoiced in the same billing cycle as the base contract — not separately and later. CO billing tracked in the same system as base contract billing so nothing gets left out of the monthly submission.
Frequently Asked Questions
The number of days between when work is performed and when the invoice is submitted. Industry average for commercial subcontractors is 18 to 22 days. SPM targets 5 to 7 days. The difference between these numbers is the amount of cash the business earned that isn't yet in the billing cycle.
No. Billing lag is the gap between work completion and invoice submission. Days in AR is the gap between invoice submission and cash receipt. Both contribute to total cash cycle time. CFOS addresses billing lag first — because it is the only part of the cash cycle the contractor controls directly. The GC's payment processing time is harder to change than your own billing timeline.
A missed cutoff adds a full 30-day billing cycle to that invoice's timeline. If the GC's cutoff is the 22nd and the invoice arrives on the 28th, it doesn't process until the following month — adding 30 days to the cash receipt date. On a single $120K invoice, that is $120K sitting uncollected for 30 extra days because of a 6-day submission miss.
Immediately — on the next billing cycle after the billing calendar and submission templates are installed. Billing lag is almost entirely a process problem, not a relationship or contract problem. Installing the process takes one to two weeks. The first submission after that is already faster.
HOW MANY DAYS BETWEEN YOUR LAST JOB AND YOUR LAST INVOICE?
If the answer is more than 7, you have already earned cash that isn't in your billing cycle yet. First call calculates your billing lag and shows you what it is costing.
Former commercial construction project manager and master electrician. Managed 150+ projects totaling $300M+ including Google data centers, military bases, hospitals, and high-rises. Now fractional CFO for commercial subcontractors doing $1M–$12M through Sulphur Prairie Management.
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