Due Diligence Guide · Trucking Company

Due Diligence Guide for Acquiring a Trucking Company

Know exactly what to inspect before you buy a small carrier — from CSA scores and fleet age to shipper concentration and driver turnover.

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Acquiring a lower middle market trucking company requires scrutiny well beyond standard financials. Fleet condition, DOT safety ratings, driver compliance, and customer concentration can make or break post-close performance. This guide walks buyers through every critical checkpoint.

Trucking Company Due Diligence Phases

01

Phase 1: Financial & Commercial Validation

Verify the true earnings power of the business, normalize owner-operator expenses, and assess revenue stability across freight lanes and shipper relationships.

EBITDA Normalization & Owner Add-Backscritical

Identify personal vehicle expenses, above-market owner salary, and non-recurring costs commingled in the P&L. True EBITDA for small carriers is frequently overstated or understated without proper normalization.

Customer Concentration & Contract Reviewcritical

Request shipper contracts, freight lane histories, and revenue by customer for 3 years. Flag any single shipper exceeding 25% of total revenue as a material concentration risk.

Fuel Surcharge & Revenue Quality Analysisimportant

Confirm fuel surcharge pass-through mechanisms are in place. Assess whether revenue includes volatile spot market loads or stable contracted lane freight to gauge cash flow predictability.

02

Phase 2: Regulatory, Safety & Compliance Review

Evaluate the carrier's DOT authority status, FMCSA safety ratings, CSA scores, and driver compliance records to uncover hidden liabilities before closing.

DOT Safety Rating & CSA Score Assessmentcritical

Pull the carrier's SAFER report and SMS data. A Conditional or Unsatisfactory DOT rating or elevated CSA scores in Unsafe Driving or HOS Compliance categories signal serious regulatory exposure.

Driver Files & CDL Compliance Auditcritical

Review all driver qualification files including CDL status, MVR checks, drug and alcohol testing logs, and medical certificates. Missing or expired records create FMCSA liability and operational risk.

Accident History & Insurance Claims Reviewimportant

Request 5-year loss runs from the carrier's insurer. Frequent at-fault accidents, cargo claims, or a history of insurance non-renewals can inflate post-acquisition premiums significantly.

03

Phase 3: Fleet & Operational Infrastructure Assessment

Physically inspect all rolling stock, review maintenance records, quantify near-term capex needs, and evaluate whether the business can operate without the owner post-close.

Fleet Condition, Age & Maintenance Recordscritical

Obtain titles, mileage logs, and service histories for every unit. Trucks over 600,000 miles or trailers over 10 years old often require replacement within 12–24 months, directly affecting acquisition ROI.

Near-Term Capital Expenditure Projectionimportant

Estimate replacement costs for aging units using current used truck market pricing. Factor in financing rates for post-close fleet refresh when stress-testing your acquisition model and SBA loan sizing.

Dispatch, Operations & Owner Dependencyimportant

Assess whether the owner is the primary dispatcher, driver, and sales contact. Businesses with no supporting operations staff carry high key-man risk and require earnout structures to protect buyer downside.

Trucking Company-Specific Due Diligence Items

  • Verify the carrier's DOT operating authority (MC number) is active and transferable, and confirm there are no pending FMCSA enforcement actions or out-of-service orders that could interrupt operations post-close.
  • Review all equipment loan balances, UCC lien filings, and personal guarantees attached to truck and trailer financing to ensure clean title transfer and accurate net asset valuation at closing.
  • Confirm the carrier's cargo and liability insurance is with an A-rated insurer, review workers' compensation claims history, and obtain new insurance quotes before finalizing your acquisition offer price.
  • Assess driver turnover rate for the past 24 months and interview key drivers and dispatch staff to gauge retention risk, since losing CDL drivers post-announcement can immediately impair revenue.
  • Evaluate any specialized equipment niches such as flatbed, refrigerated, or hazmat capability, as these represent defensible competitive advantages and may justify a valuation premium above standard dry van multiples.

Frequently Asked Questions

What EBITDA multiple should I expect to pay for a small trucking company?

Lower middle market trucking companies typically trade at 2.5x to 4.5x EBITDA. Carriers with clean CSA scores, diversified shippers, modern fleets, and contracted lanes command the higher end of that range.

Can I use an SBA loan to acquire a trucking company?

Yes. Trucking acquisitions are SBA 7(a) eligible. Buyers typically inject 10–20% equity, finance the majority via SBA, and structure a seller note for 5–10% of the purchase price to satisfy lender requirements.

How do I assess driver retention risk before closing?

Review 24 months of driver turnover data, examine pay structures against market rates, and interview key drivers where possible. High turnover or below-market pay signals immediate post-close revenue risk.

What happens to the DOT authority when I buy a trucking company?

In an asset purchase, DOT authority does not automatically transfer. Buyers must apply for new operating authority or execute an FMCSA-compliant transfer process, which should be coordinated with legal counsel before closing.

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