PAY-WHEN-PAID CALCULATORBID MARKUP TOOLFREE FOR SUBCONTRACTORSNET 30 THROUGH NET 90CFOS $1M–12MPAY-WHEN-PAID CALCULATORBID MARKUP TOOLFREE FOR SUBCONTRACTORSNET 30 THROUGH NET 90CFOS $1M–12M
FREE TOOL · BID MARKUP CALCULATOR
PAY-WHEN-PAID BID MARKUP CALCULATOR.
Enter your project cost and working capital rate. Get the exact dollar amount to add to your bid for every payment term from Net 30 to Net 90. Most subcontractors under-bid this by 1–2% and absorb it from margin on every job.
BY JOSH LUEBKERFree · No login required
Total cost to complete · labor, material, equipment, subs
$
Line of credit rate or cost of capital
%
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$500,000
PROJECT COST
your input
$123
DAILY CARRY COST
at your LOC rate
$45,000
ANNUAL CARRY IF UNPAID
worst-case reference
BID ADDER BY PAYMENT TERMSDollar amount to add to your bid · updates as you type
PAYMENT TERMS
DAYS TO PAYMENT
CARRY COST ($)
% OF COST
WHAT TO DO
WHAT THIS MEANS FOR YOUR BID
Enter your project cost above to see the analysis.
HOW IT WORKS
THE FORMULA BEHIND THE CALCULATOR.
Pay-when-paid means you deploy labor, material, and equipment before the first dollar arrives. That working capital has a cost · either the interest on your line of credit or the opportunity cost of capital tied up in the job. Most subcontractors treat this as a cost of doing business and absorb it from margin. The ones who price it in keep more of what they earn.
THE CALCULATION
CARRY COST = PROJECT COST × (LOC RATE ÷ 365) × DAYS TO PAYMENT
Example: $500,000 cost × (9% ÷ 365) × 75 days = $9,247 carry cost
As a percent of cost: $9,247 ÷ $500,000 = 1.85% · add this to your bid before applying margin.
This is a floor, not a ceiling: The formula calculates break-even on the financing cost only. Your profit markup goes on top. Never compress profit to offset pay-when-paid carry cost.
Price it as a named line item: Include the carry cost as a separate line in your bid buildout. When a GC asks you to sharpen your number, you know exactly which line is negotiable and which is cost recovery.
Slow-pay GCs deserve a premium: If a specific GC consistently pays at 90–120 days, factor in the longer carry cycle · not the contract terms. The contract says Net 30. The GC pays at Net 90. Price for reality.
The annual cost perspective: A subcontractor carrying $500K in average outstanding AR at 9% LOC rate is paying $45,000 per year in financing cost. If that cost is not in the bids, it comes from net profit. On a 10% net margin business, that is the equivalent of $450,000 in revenue that produced no return.
COMMON QUESTIONS
FREQUENTLY ASKED.
Pay-when-paid means the GC pays the sub after the GC gets paid by the owner. The sub is still owed the money, but payment may be delayed 60 to 120 days. That delay has a real financing cost that most subs never price into their bids.
Pay-when-paid as a timing clause is legal in most states. Pay-if-paid · where the GC owes nothing if the owner never pays · is more restricted and some states void it outright.
Contract Value x (LOC Rate / 12) x Payment Delay in Months. On a $500K contract with a 75-day delay at 8% LOC rate, the carry cost is approximately $8,333.
At a 9% working capital rate, carrying $200K in unpaid billings for 90 days costs roughly $4,400 per quarter · per job. Across 10 active jobs that is $44K per year off the bottom line if it was not priced in.
Josh Luebker
FOUNDER, THE CONSTRUCTION CFO
Former commercial construction project manager and master electrician. Managed 150+ projects worth more than $2.1B combined, with individual jobs from $50,000 to $300M. Now fractional CFO for commercial subcontractors doing $1M–$12M. About Josh → | LinkedIn →
Stewart Bohrer
VP OF OPERATIONS
Keeps the system running day to day: job costing, WIP, monthly financial reviews, and the follow-through between calls. Josh handles onboarding; Stewart's team runs execution.