Skymont Lenders, a small-business funding service in Rexburg, ID, explains how a contractor line of credit works for Madison County builders and trades. A line covers materials and wages between a job's start and its draws, and is repaid as each draw arrives. Used for machines or losses, it maxes out. Partners review draw history, receivables and existing payments.
How Contractors Pay for Materials Before a Draw Clears
Three ways: supplier trade accounts, the business's own cash, and borrowed money. A supplier account may give 30 days, which works if the draw arrives within 30 days. When it does not, the contractor either pays from cash, which squeezes payroll, or needs a bridge. A construction line of credit for a contractor is that bridge.
In Madison County, Idaho, construction had 182 employer establishments in 2023, and 74.2% of them had fewer than five employees (County Business Patterns 2023). For a small crew, a single slow draw can ripple through several jobs.
How a Construction Business Line of Credit Works Day to Day
- A partner approves a limit after reviewing the business
- You draw when a materials order or payroll comes due
- Interest runs on the drawn balance only
- When the job's draw arrives, you pay the line down
- The repaid amount is available for the next job
The discipline is in step four. A line works only if each draw is repaid from the job it funded. The line of credit page covers draw periods, renewals and how payments are calculated.
Materials vs Machines vs Payroll
A line of credit handles materials well because materials become a receivable once the job is billed. Payroll during a short delay fits too. Machines do not: an excavator or a work truck earns over years, and running it through a line ties up the limit for years. Finance machines separately through equipment financing, and keep the line for materials and short gaps.
For the full split by need, see contractors and builders.
What Partners Review Before Opening a Line
- Several months of bank statements showing draws and deposits
- A job list or work-in-progress report
- Receivables, including retainage being held
- Existing lines, cards and equipment payments
- A current Idaho contractor registration under the business's legal name
If your registration record is not ready to hand over, start with the Idaho contractor registration guide.
A Worked Example (Hypothetical)
A Madison County, ID framing contractor runs three jobs. Job A's lumber, $31,000, is due in week one; its draw, $48,000, arrives in week five. Job B's lumber, $27,000, is due in week four; its draw arrives in week nine. With a line, the contractor draws $31,000 in week one, repays it in week five, and draws $27,000 for Job B the same week. The balance never stacks because each draw is cleared by its own job. Without that discipline, Job B's materials would sit on top of Job A's. All figures are invented for illustration and are not an offer.
Supplier Accounts and the Line Together
A contractor who buys on supplier terms can use a line alongside those accounts, not instead of them: use the supplier's payment window first, and draw on the line only when a draw will arrive after the supplier's due date. That keeps the drawn balance, and the interest, as small as the schedule allows.
Warning Signs a Line Is Being Misused
- The balance never returns to zero, or close to it, between jobs
- Draws are covering losses on finished jobs
- Equipment payments are being made from the line
- The line is drawn to cover the minimum payment on itself
Questions to Ask Before Opening a Line
- Is the line reviewed yearly, and what can change at review?
- Is interest charged only on the drawn balance?
- Are there charges for keeping the line open or for each draw?
- Is it secured by a lien on all business assets?
- Can the partner reduce the limit mid-job?
Residential Building in Madison County, ID
Residential permits are a county figure, not a forecast for any contractor: Madison County authorized 842 new housing units in 2025, up from 274 in 2024 and 403 in 2023 (Building Permits Survey). The county had 47 residential building employers in 2023 (NAICS 2361). Separately, 122 residential builders with no paid employees filed in 2024 (Nonemployer Statistics 2024, a different program). Permit counts by year and other local figures sit on the Rexburg, ID page.
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By Skymont Lenders · Updated