Contractor Business Credit and Capital Stack Guide (2026)

2. The contractor cash gap, in dollars

Most business owners have a cash cycle. A contractor has a cash cycle that is long, lumpy and set by someone else. The same guide gives a clean formula for it: days to pay your costs, plus the days your client takes to pay, minus the days your suppliers give you to pay (Trezy). Run it on a client who pays in 45 days.

That table is the whole case for supplier terms. The same material bill costs you 45 days of funding if you pay on delivery and 15 days if you have net 30. Three times the exposure on the same invoice. A supplier relationship that gives you terms is worth real money before you borrow a dollar.

What it means on a real job

Take a $300,000 contract. The cash-flow guide's estimate of 20% to 30% of the contract as working capital puts your carry at $60,000 to $90,000. That is a rule of thumb from a third-party source, not a law, and your own number depends on payment terms, job length and how much you front. It is a good planning range.

Now price the funding. If a 0% card carries that amount, the minimum payment is commonly 1% to 1.5% of the balance, or $600 to $1,350 a month on $60,000 to $90,000. If a bank line carries it at an illustrative 10%, $75,000 for two months costs about $1,250 in interest. Either is cheap relative to the margin on a $300,000 job. The expensive mistake is not the interest. It is running out of room in the middle of a job, which costs you the job.

3. Retainage: the money you earned and cannot touch

Retainage is the portion of each progress payment an owner holds back until the work is done. It is typically 5% to 10% (Corpay), and the specific rate comes from the contract and the jurisdiction. Some states cap it at 5%, others allow up to 10% or set no statutory cap, and federal fixed-price construction contracts allow a maximum of 10% (Built). Check your state and your contract.

The painful part is the release. Corpay reports that retainage usually takes 30 to 365 days after final completion to arrive, depending on jurisdiction, contract terms and the lien-waiver chain. Built says some states require release within a defined period after substantial completion, commonly 30 to 60 days. Release generally needs final, unconditional lien waivers from the contractor and its subcontractors and suppliers. A missing waiver from a sub three tiers down can hold your money.

That $45,000 is revenue you have already earned, on work you have already paid for. By the end of each job it grows to $30,000 per job at 10%, and it comes back only after punch-list close-out and paperwork. For a contractor running several jobs at once, retainage is a permanent balance, a layer of working capital that never fully comes home until the business shrinks.

The owner-level translation is simple. Do not fund retainage with a short-fuse instrument. A balance that has to be repaid when a promotion ends, against money that arrives 30 to 365 days after the job ends, is a mismatch. Fund it with something that lasts as long as the holdback does.

4. The four Tier 1 lines of credit a contractor can actually ask for

A line of credit is the natural tool for a gap that closes when a draw arrives, because you draw, you pay for the job, the payment arrives and you pay it down. Four of the five Tier 1 issuers publish a business line of credit. The terms below come straight from each bank's own pages. Amex also offers a business line of credit, which we did not review for this article.

Read the table for what each bank prefers, because that is the lender preference that matters.

Wells Fargo is the door for a younger contracting business

Six months in operation and a typical guarantor FICO of 680 is the lowest bar here. The line is small, at most $150,000, but a contractor in the first two years of business may qualify for it when the Bank of America and Chase lines are not yet available. At $150,000, each 25 basis points of prime is about $31 a month.

Bank of America and Chase want two years and real revenue

Both lines require at least $100,000 of annual revenue, and both look at two years of stable ownership. For a contractor with an established book of business, these are the larger unsecured and secured options, up to $250,000 and $500,000. The Chase fee on a $100,000 line is $250 a year, because 0.25% of $100,000 is more than the $200 floor, and that fee is waived after the first year when your 12-month average use is at least 40% of the line.

The renewal point matters more for contractors than for most

Bank of America's line is generally available for one year and renewed at the bank's discretion. A contractor whose receivables are tied up in a long project can come up for renewal in the middle of a job. That is a reason to ask the banker about renewal timing before you sign, and to avoid planning a line as permanent capital.

Wells Fargo, Chase and U.S. Bank each state a personal guarantee requirement on their pages, and Bank of America's page did not state one. All four read your personal credit. The five Tier 1 issuers do not report ongoing business card balances to personal bureaus, but a line of credit is a different product with its own reporting, and a hard inquiry appears either way.

5. The 0% card round, and the exit that has to match your draws

A 0% card is the right tool for materials, with one condition: the exit has to match when your money actually arrives. Round 1 runs at about month three with all five Tier 1 issuers on the same day, as we explain in our same-day explainer. Round 2 runs at about months seven and eight with four issuers, skipping Wells Fargo, and Round 3 at about months eleven and twelve with all five (why the final round exists).

0% does not mean zero monthly payment. Every card requires a monthly payment, commonly around 1% to 1.5% of the balance, during the intro window. That is the number a contractor's cash flow has to carry before the first draw lands. For the cards themselves, remember that intro lengths differ: Chase, American Express and Wells Fargo list 12 months on the cards we reviewed, U.S. Bank lists 12 billing cycles, and Bank of America lists 7 billing cycles. The detail is in our 0% exit plan.

The mismatch that costs contractors money

Here is the worked version of the retainage warning. A contractor opens a 12-month 0% card at month three, so the window closes around month fifteen. A project finishes at month twelve with $30,000 of retainage owed. If the money arrives 30 days after completion, the card is paid off at month thirteen and nothing is lost. If it takes the longer end of the reported range, up to 365 days, the money arrives around month twenty-four. The card repriced at month fifteen. A $30,000 balance at a 16.99% post-intro rate costs about $425 a month, so nine months of waiting costs about $3,823 in interest. That is the cost of financing retainage on a short window.

The fix is to decide before the purchase which instrument carries the retainage. Materials for a job that pays out inside the window can sit on a 0% card. The holdback on a long job belongs on a line or a term product that lasts as long as the holdback does.

One more structural point. Nav cautions contractors that some issuers report payment activity to consumer credit bureaus as well as business bureaus, and that balances may affect personal credit (Nav). That is a real difference between issuers. The five Tier 1 issuers do not report ongoing business card balances to personal bureaus, so a large materials balance does not push personal utilization up. Hard inquiries from applications still appear.

6. Bonding is a credit event

For contractors who bid public work or larger private jobs, surety bonds are a second credit decision that sits on top of the first. The SBA guarantees bid, payment, performance and ancillary bonds, which it describes as contract bonds, for qualified small businesses. It guarantees contracts up to $9 million for non-federal work and up to $14 million for federal work (SBA).

The SBA charges a fee of 0.6% of the contract price on performance and payment bond guarantees and no fee on bid bond guarantees. On a $500,000 contract that is $3,000. That is the SBA's guarantee fee. The surety's own premium is a separate cost that we did not verify and that varies by contractor and bond.

The detail that matters most for the file is eligibility. The business must qualify as a small business and meet the surety company's credit, capacity and character requirements (SBA). Credit is your business and personal credit. Capacity is your financials and your work in progress. Character is your history. Those are the four Legs of Bankability seen from the surety's side of the desk. A contractor who builds the file for a line of credit has built most of the file a surety wants.

The sequencing is the same as it is for credit: build the file, then ask. A bond request on a thin file gets a small program or a decline. We do not promise bonding capacity, and nobody can. We do say the same preparation supports both.

7. SBA CAPLines: the program written for contractors

If one government program was built for the contractor's problem, it is CAPLines. The SBA describes it as an umbrella program for short-term and cyclical working-capital needs, with four types (SBA).

Maximum maturity on CAPLines is 10 years, except for the Builders CAPLine, which has a shorter limit (SBA). We did not verify dollar caps on each type, so confirm them with an SBA lender. SBA loan interest rates are negotiated within SBA maximums that peg to prime, and they may be fixed or variable.

The practical lesson is the same one in our verified case record. An SBA product is underwritten by a bank reading the entity, and the file cannot be assembled in the month you apply (Frank's case study). A contractor who wants a Contract CAPLine for a large job in six months should be preparing the file now. We also cover the heavy-equipment side of contractor finance in our heavy equipment financing guide.

A warning belongs here. Contractors are heavily pitched receivables advances and merchant cash advances against their invoices, because the cash gap is so visible. We cover why those are a trap in our MCA trap guide. A timing gap is a reason to borrow at a fair rate, not at a factor rate that makes a $50,000 advance cost far more than a bank line.

8. The four Legs, translated for a contractor's file

The Bankable Blueprint™ is built on four Legs: lender compliance, business credit scores, ten to fifteen trade lines, and financials in order. Here is how each one reads when the applicant is a contractor.

Leg 1: Lender compliance

The compliance items are the checks an underwriter runs before revenue is discussed: entity, licensing, address, phone, consistent records. A contractor adds a few of their own: the contractor license, insurance, and a business name that matches everywhere it appears. Our 20 lender compliance items guide walks through the list.

Leg 2: Business credit scores

Contractors have a head start here, because they already buy on account from suppliers. The question is whether those suppliers report. Dun and Bradstreet does not calculate a PAYDEX with fewer than three trade experiences and requires two suppliers reporting (Dun and Bradstreet). Ask your lumber yard, electrical supply and equipment rental which ones report. Our net-30 vendor guide covers how to build the list.

Leg 3: Ten to fifteen trade lines

Supplier accounts, equipment rental accounts, fuel cards and the cards from your rounds all count. A contractor with a good supply-house relationship can reach the lower end of the range from vendors the business already uses.

Leg 4: Financials in order

This is where contractors lose the most ground, and it is also what a surety reads for capacity. A bank or surety wants twelve months of bank statements that tie to the books, tax returns, and a view of work in progress. A contractor who tracks job costs by job and keeps a current schedule of open jobs, billings and retainage reads as organized, and organized reads as lower risk. This part is our practice, not a published rule, and it matches what sureties describe as capacity.

9. What this month's jobs data says about construction

The September employment report came out on October 2. Construction employment changed little, up 11,000 against an average of 10,000 a month over the prior 12 months, and nonresidential specialty trade contractors added 12,000 jobs (BLS). Translate that. The industry is adding people at a steady pace, not a surge. For a contractor deciding how much capital to carry, that argues for sizing credit to a steady backlog and not to a boom.

The rate side is also steady. Prime is 7.00% (Wall Street Journal), and a bank line priced off prime moves about $21 a month for each 25 basis points on a $100,000 balance. We walk through the full rate picture in our jobs report analysis. For a contractor, the rate is a footnote. Timing and paperwork cost more.

10. Six mistakes contractors make with credit

1. Financing retainage with a short promotion

Retainage can take 30 to 365 days after completion to arrive. A 0% window that closes first leaves a balance repricing at 16.99% or higher. Nine months of that on $30,000 is about $3,823.

2. Paying suppliers on delivery when terms are available

The same material bill is 45 days of funding on delivery and 15 days on net 30. Ask for terms first.

3. Borrowing for the whole contract instead of the gap

The need is the weeks between cost and draw, not the contract value. Size the line to the gap, and pay interest only on what you draw.

4. Ignoring the renewal date in the middle of a job

A line that renews annually at the bank's discretion can come up for review while your receivables are tied up. Know the date.

5. Skipping the lien-waiver paperwork

Retainage release generally needs final, unconditional lien waivers across the chain. Chase the paper while the job is still active, not after it closes.

6. Taking a receivables advance for a timing gap

These are priced for emergencies, and a timing gap is predictable. Our MCA guide covers why it is the wrong tool.

11. Questions contractors ask

12. What we could not verify

• The 45-day versus 23-day payment statistic and the 20% to 30% working-capital range come from a third-party cash-flow guide that cites the Associated General Contractors of America. We did not find the original AGC publication.
• Retainage percentages and release timing come from Corpay and Built, and they vary by state, project type and contract. Confirm yours.
• The SBA's page does not state the dollar caps on each CAPLines type, and its Builders CAPLine maturity limit was truncated in what we read. Confirm both with an SBA lender.
• The surety's own premium is not stated by the SBA and varies by contractor.
• Bank of America's line page did not state a personal guarantee requirement, and U.S. Bank's Cash Flow Manager page did not state minimum revenue or time in business. We report what each page says.
• We did not review American Express's business line of credit for this article.
• Dollar examples are illustrations of arithmetic on stated amounts, not quotes.

13. What this means for your file

A contractor's capital problem is timing, and timing problems have timing solutions. Get terms from suppliers. Know your retainage and when it arrives. Put a line of credit under the gap, put 0% materials on cards only when the draw lands inside the window, and build the file once so that the line, the cards and the bond all read the same organized financials. Same file. Same banks. Different order. Which tool goes first is the work of the Bankable Blueprint™.

Book a Bankable Blueprint Call

Related reading, already on this site:

• The 0% Exit Plan - match every intro end date to a payment date.
• Trucking Capital Stack Guide - another industry where receivables set the cycle.
• Dental Practice Capital Stack Guide - a different timing gap, from insurance reimbursement.
• The Week Before You Apply - the preparation that comes first.

14. Compliance

This article is educational. It is not credit, legal, tax, or financial advice and not a lending offer. Stacking Capital is a 1:1 capital advisory. We are not a bank, a lender, or a broker.

Terms and laws change. Lender terms, SBA program details and retainage rules cited here come from the sources below as read in October 2026, and retainage law varies by state. Dollar examples are illustrations of arithmetic, not quotes or projections.

Approval is not guaranteed. A personal guarantee applies on the Tier 1 business credit products and lines described in this article.

Sources: Trezy, construction cash flow guide; Corpay, construction retainage; Built, retainage in construction; SBA, surety bonds; SBA, lender resources and CAPLines; Wells Fargo, BusinessLine FAQs; Bank of America, unsecured line of credit; Chase, business line of credit; U.S. Bank, Cash Flow Manager; Nav, business credit cards for contractors; Dun and Bradstreet supplier FAQ; BLS Employment Situation, September 2026; WSJ prime rate.