How to Finance a CPA Firm Acquisition in the Lower Middle Market

From SBA 7(a) loans to earnout structures, understand the capital stack that closes accounting firm deals between $1M and $5M in revenue.

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Acquiring a CPA or accounting firm in the $1M–$5M revenue range is highly financeable due to strong recurring revenue, predictable cash flows, and SBA eligibility. Most deals combine an SBA 7(a) loan with a seller note or earnout tied to client retention, giving buyers leverage while protecting against post-close attrition risk common in founder-led practices.

Financing Options for Accounting/CPA Firm Acquisitions

SBA 7(a) Loan

$500K–$4.5MPrime + 2.75%–3.5% (variable); currently ~10.5%–11.25%

The most common financing vehicle for CPA firm acquisitions, covering up to 90% of the purchase price. Lenders underwrite heavily on recurring revenue quality, staff depth, and the seller's transition commitment.

Pros

Low down payment requirement of 10–15% makes entry accessible for individual CPA buyers
Loan terms up to 10 years keep monthly debt service manageable against recurring revenue
Widely accepted by SBA-preferred lenders familiar with accounting practice acquisitions

Cons

×Personal guarantee required, putting buyer's personal assets at risk if client attrition exceeds projections
×Lenders may require seller to stay 12–24 months, complicating deals with retiring founders seeking clean exits
×Approval timeline of 60–90 days can strain deal momentum with motivated sellers

Seller Financing

$100K–$600K (10–20% of purchase price)6%–8% fixed; negotiated directly between buyer and seller

The selling CPA carries a portion of the purchase price, typically 10–20%, subordinated to the SBA loan. Seller notes align incentives for transition support and signal the seller's confidence in client retention.

Pros

Reduces required bank financing and demonstrates seller's confidence in a smooth client transition
Flexible repayment terms can be deferred 6–12 months to ease early post-close cash flow pressure
Often required by SBA lenders as evidence of seller's ongoing commitment to transition

Cons

×Seller may push for shorter repayment terms of 3–5 years, increasing monthly debt service burden
×Disputes over earnout triggers or client attrition can create post-close conflicts with the seller
×Not a substitute for adequate working capital; buyers should not rely solely on seller note flexibility

Earnout Structure

15–30% of purchase price tied to retention thresholdsNo interest rate; performance-based payout reduces upfront cash risk

A portion of the purchase price is paid over 12–24 months contingent on client revenue retention. Common in CPA deals to manage attrition risk when the founding partner holds most client relationships.

Pros

Directly aligns seller's financial incentive with post-close client retention, reducing buyer's downside risk
Lowers day-one purchase price and improves acquisition DSCR for SBA underwriting purposes
Motivates the selling CPA to actively introduce clients to the acquiring team during transition

Cons

×Earnout disputes are common if retention metrics are not precisely defined in the purchase agreement
×Sellers may resist earnouts on deals where they plan a hard retirement with no ongoing involvement
×Measuring true retention requires clean, signed engagement letters and accurate revenue-by-client tracking

Sample Capital Stack

$2,000,000 acquisition of a CPA firm with $1.8M revenue and $620K EBITDA

Purchase Price

~$18,500/month combined debt service on SBA loan (10-year term, 11%) plus seller note

Monthly Service

1.38x DSCR based on $620K EBITDA against ~$222K annual debt service; meets SBA minimum threshold of 1.25x

DSCR

SBA 7(a) loan: $1,600,000 (80%) | Seller note: $200,000 (10%) | Buyer equity/down payment: $200,000 (10%)

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Lender Tips for Accounting/CPA Firm Acquisitions

1Choose an SBA Preferred Lender with closed CPA or professional services acquisitions on record; generic SBA lenders often misunderstand client revenue multiples and earnout structures common in accounting deals.
2Prepare a client retention analysis showing revenue by client, tenure, and service type for the past three years; lenders will stress-test attrition scenarios based on how dependent revenue is on the departing founder.
3Document the seller's 12–24 month transition agreement in writing before approaching lenders; SBA underwriters treating key-person risk as a credit issue will want confirmation the founding CPA remains engaged post-close.
4Separate recurring retainer and tax compliance revenue from one-time project fees in your financial package; lenders apply higher credit to predictable annual billing streams when sizing and pricing the SBA loan.

Frequently Asked Questions

Can I use an SBA loan to buy a CPA firm if I'm not yet a licensed CPA?

Yes, but lenders will require licensed CPAs on staff to operate the practice. Buyers without a CPA license typically need a qualified practice manager or partner in place to satisfy SBA and state licensing requirements.

How does an earnout work in a CPA firm acquisition?

The seller receives a portion of the price only if agreed client revenue is retained 12–24 months post-close. Precise retention thresholds, measurement periods, and payment triggers must be clearly defined in the purchase agreement.

What DSCR do SBA lenders require for accounting firm acquisitions?

Most SBA lenders require a minimum 1.25x DSCR. Given seasonal cash flows in tax practices, lenders often analyze trailing twelve months of EBITDA and may apply a stress haircut for assumed client attrition.

How much should I put down to buy a CPA firm using SBA financing?

Typically 10–15% of the purchase price. On a $2M deal, expect to inject $200K–$300K in equity, with the SBA loan covering the balance. Seller notes can satisfy part of the equity requirement with lender approval.

More Accounting/CPA Firm Guides

Buy a Accounting/CPA Firm Business →Valuation Guide →SBA Loan Guide →Deal Structure →Common Mistakes →SBA Calculator →Deal Structure Builder →

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