How to Finance the Acquisition of a General Contracting Business

From SBA 7(a) loans to seller notes and equity roll, here are the capital structures that work for buying a licensed general contracting firm in the $1M–$5M revenue range.

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Acquiring a general contracting business presents unique financing challenges — project-based revenue, bonding requirements, and retainage balances all affect how lenders evaluate deals. Understanding which financing structures fit construction company acquisitions will help buyers close faster and on better terms.

Financing Options for General Contracting Acquisitions

SBA 7(a) Loan

$500K–$5MPrime + 2.75%–3.5% (variable), approximately 10%–11.5% current rates

The most common financing tool for lower middle market construction acquisitions. SBA 7(a) loans cover up to 90% of the purchase price, with lenders requiring demonstrated backlog quality, license transferability, and clean job costing financials.

Pros

Low equity injection of 10–15% allows buyers to preserve working capital for project costs and overhead post-close
10-year repayment terms lower monthly debt service relative to conventional loans, improving DSCR on lumpy construction revenues
Goodwill and intangibles such as subcontractor relationships and backlog value are financeable under SBA guidelines

Cons

×Lenders scrutinize backlog concentration and retainage exposure closely, which can slow approval for deals with thin or uneven contract pipelines
×Bonding capacity transfer and license continuity must be confirmed before approval, adding complexity to the closing timeline
×Personal guarantee required from all owners with 20%+ equity stake, creating personal liability exposure tied to project performance post-close

Seller Financing

$150K–$1.5M6%–8% fixed, interest-only for 12–24 months in some structures

A seller note covering 10–30% of the purchase price is common in construction acquisitions where retainage, warranty exposure, or owner dependency creates buyer risk. Often structured with earnout provisions tied to backlog conversion.

Pros

Seller skin-in-the-game incentivizes smooth transition of client relationships, subcontractor introductions, and licensing support post-close
Earnout tied to backlog conversion protects buyer against seller inflating pipeline value during negotiations
Flexible terms allow buyers to structure holdbacks for open warranty claims, mechanic's liens, or unresolved punch list items

Cons

×Sellers nearing retirement may resist subordinated notes if they need liquidity, limiting how much of the deal can be seller-financed
×Earnout disputes are common when project timelines slip or clients defect post-close, requiring clear contract language upfront
×SBA lenders require seller notes to be on full standby for 24 months, restricting seller's ability to call the note if issues arise

Conventional Bank or USDA Business & Industry Loan

$500K–$3M7.5%–10% fixed or variable depending on collateral and term

Conventional commercial loans or USDA B&I loans suit buyers with strong balance sheets or rural market targets. Lenders focus on tangible asset coverage — equipment, receivables — and consistent EBITDA normalized across at least three project cycles.

Pros

No SBA guarantee fees reduce closing costs, which can be meaningful on transactions above $2M purchase price
USDA B&I loans offer longer amortization for rural contractors, improving cash flow management during slow seasonal cycles
Fewer restrictions on seller note standby periods, giving more flexibility in deal structuring with earnouts and deferred payments

Cons

×Typically require 20–30% equity injection, higher than SBA options, which can strain buyer working capital in a project-intensive business
×Lenders unfamiliar with construction accounting may struggle to underwrite billing-in-excess positions or normalized job costing margins
×Harder to finance goodwill-heavy deals where tangible assets are limited to light equipment and receivables with retainage holdbacks

Sample Capital Stack

$2,500,000

Purchase Price

Approximately $23,500/month on SBA portion at 10.75% over 10 years; seller note payments deferred 24 months per SBA standby requirement

Monthly Service

Target DSCR of 1.25x requires approximately $352,000 in annual debt service coverage — achievable at $350K–$500K normalized EBITDA typical for a $2.5M general contracting acquisition

DSCR

SBA 7(a) loan: $2,125,000 (85%) | Seller note on standby: $125,000 (5%) | Buyer equity injection: $250,000 (10%)

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Lender Tips for General Contracting Acquisitions

1Document backlog quality before approaching lenders — provide signed contracts, payment schedules, and retainage terms to demonstrate revenue visibility and reduce perceived project-based revenue risk.
2Confirm general contractor license transferability in your state early; lenders will not approve an SBA deal if licensing continuity post-close is uncertain or requires a lengthy re-application period.
3Normalize EBITDA carefully with a licensed CPA experienced in construction accounting — add back owner compensation, personal expenses, and one-time project losses, and present job costing reports by project.
4Secure a letter of support from the surety company indicating they will maintain or re-issue bonding under new ownership; this materially strengthens the lender's confidence in post-close operational continuity.

Frequently Asked Questions

Can I use an SBA loan to buy a general contracting business if the owner holds the only contractor's license?

Yes, but you must demonstrate a credible plan for license continuity post-close. This typically means the buyer obtains their own license, a licensed employee remains on staff, or the seller stays on in a consulting role during the licensing transition period.

How does retainage affect my ability to finance a general contracting acquisition?

Retainage balances appear as assets but are slow to collect, which can inflate working capital on paper. Lenders will scrutinize aging retainage, and a working capital peg in the deal should account for outstanding retainage not expected to collect within 90 days post-close.

What EBITDA margin do lenders want to see before approving a construction business acquisition loan?

Most SBA lenders target normalized EBITDA margins of 10–20% and a minimum DSCR of 1.25x after debt service. Thin margins from a single bad project year can be explained with job costing detail showing normalized historical performance across multiple cycles.

Is seller financing common in general contracting deals, and how large should the seller note be?

Seller notes of 5–15% of purchase price are standard in construction acquisitions. A larger note of 15–30% is appropriate when owner dependency is high, warranty exposure exists, or the buyer wants earnout provisions tied to backlog conversion milestones.

More General Contracting Guides

Buy a General Contracting Business →Valuation Guide →SBA Loan Guide →Deal Structure →Common Mistakes →SBA Calculator →Deal Structure Builder →

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