Buying an Accounting or Bookkeeping Practice
First, the Ownership Rule
Know this before building the thesis: in most states a licensed CPA firm (anything performing attest work such as audits and reviews) must be majority-owned by CPAs, with non-CPA ownership capped at a minority stake under the Uniform Accountancy Act pattern. If you are not a CPA, buying a full CPA firm outright is usually off the table. What is open to any buyer: bookkeeping, payroll, and most tax-preparation practices, which generally require no ownership license. Many searchers structure around the rule by targeting non-attest practices or partnering with a CPA who holds the required stake.
What Practices Trade For
BizBuySell's sold accounting and tax practices put half the market between 1.61x and 2.66x SDE across 2021 to 2025, with a 2.04x median, on a $425,000 median sale price. Revenue multiples run 0.92x to 1.17x with a 1.02x median, so the long-standing one-times-revenue rule of thumb sits near the middle of the sold market rather than acting as a floor. Bookkeeping practices price more reliably on earnings than on the revenue rule, since monthly recurring engagements carry different margins than seasonal tax work.
Retention Is the Deal
The asset you are buying is a client list that can leave, which is why practice sales carry retention protection: an earnout, a clawback, or a holdback tied to how much of the book survives the first tax season. Take that seriously rather than trading it for a cleaner headline price. One professional rule sets the calendar and few buyers know it: on a sale, the seller must write to every client asking consent to transfer their files, may presume consent only after not less than ninety days, and must not move the files before then. An asset purchase buys a ninety-day client-notification event, which is when clients shop. Buying the firm moves no files and starts no clock.
Read the Book of Business
Quality varies enormously between practices with identical revenue. Pull the client list by fee size, service type, and tenure: recurring monthly bookkeeping and retainer advisory work at the top; annual tax returns in the middle; one-off projects at the bottom. Check fee levels against market, since chronically underpriced books built on the seller's loyalty discount churn when repriced. Watch client concentration, client age (a book of retiring owners runs off), and how much work sits in the seller's personal relationships versus the staff's.
What to Verify in Diligence
Beyond the list itself:
- Staff credentials and capacity (who actually prepares the returns and closes the books, what they are paid against market, and who might leave with clients)
- Workflow and software (a practice on modern cloud tooling transfers far more cleanly than one on desktop software and paper)
- Seasonality and the cash-flow shape of a tax-heavy book
- Work-in-progress and unbilled time at close
- Any attest engagements in the mix, which change both the license requirements and the risk profile
Financeability Notes
Collateral is at its thinnest here: a client list and working papers count for nothing toward the secured test and receivables at a tenth of book, so the shortfall reaches personal real estate by construction. Know which of the two businesses you are buying, too. Federal figures put a CPA office near $244,000 of revenue per employee against $104,000 at a bookkeeping shop, ten points apart on payroll share, so one blended benchmark describes neither. Expect the lender to focus on retention risk and the transition plan the same way you should, and to look for post-close liquidity through the first tax season, when the retention question gets answered. Model coverage on the book you are confident survives, not the trailing twelve months.
Terms in This Industry
Seasonal concentration
How much of the year's fee income arrives in the weeks around a filing deadline.
Attest work
The engagements where a CPA formally vouches for financial statements, which only a CPA firm may do.
CPA-ownership rule
State rules that a CPA firm be majority-owned by licensed CPAs, which limits who can buy one.
Realization rate
What a practice actually collects against the standard rate for the hours it worked.
Practice sale disclosure
The narrow permission that lets a seller show client files to a buyer without asking every client.
What the Data Says
2025 marketplace benchmarks reported accounting and tax practices at roughly 1.1x revenue and 2.3x reported earnings on average, with the median sale price near $500,000; directional figures from listed-sale data, not comps for any specific practice.
Source: BizBuySell valuation benchmarks, accounting and tax practices
BizBuySell's sold accounting and tax practices put half the market between 1.61x and 2.66x SDE across 2021 to 2025, with a 2.04x median, on a $425,000 median sale price and $208,303 of median owner earnings. Revenue multiples run 0.92x to 1.17x with a 1.02x median, so the widely quoted one-times-revenue rule of thumb is close to the middle rather than a floor.
Source: BizBuySell, accounting and tax practice sold-listing benchmarks (2021-2025)
Under the Uniform Accountancy Act pattern adopted across nearly every state, licensed CPA firms must keep majority CPA ownership, with non-CPA owners limited to minority stakes and active-participation requirements; non-attest practices such as bookkeeping generally carry no such ownership restriction.
Source: Uniform Accountancy Act, Ninth Edition (NASBA and AICPA, 2025)
Margin context, from IRS Schedule C aggregates (TY2023): accounting services (cpa and other) ran a 40.7% net margin across all filers and 53.8% among profitable ones; a listing far above the second number is making a claim about add-backs. Both figures and their caveats are on Industry Economics.
This industry ranks in the Metro Target Scans for Chicago: strong lending volume and survival on the government's own record.
Lender context, from the SBA loan-level file: Live Oak Banking Company (130), United Midwest Savings Bank National Association (31), The Huntington National Bank (28) wrote the most of this industry's 458 acquisition approvals. A bank that knows the trade says yes faster; the ranking for every industry is on Most Active Lenders by Industry.
Holding a live deal in this industry? Underwrite it with the comps, cited band, and charge-off rate pre-loaded.
Compare bands across industries in the cited multiple bands by industry.
Who Else Is Buying in This Industry
- Trinity Hunt Partners · Dallas, TX
A growth-oriented services investor whose Springline Advisory platform assembles regional accounting firms, from its Kansas City founding partner to tuck-ins across five states this year.
- GBC Advisory (into Springline) · 2026 · A four-decade Norman, Oklahoma firm, extending Springline into the Oklahoma City market.
- 1 more confirmed on the firm's profile
- DFW Capital Partners · New York, NY
A service-company builder whose Sorren platform united thirteen regional CPA firms into a top-50 national practice in a single stroke, then kept buying.
- Casey Neilon (into Sorren) · 2025 · A Carson City and Reno accounting consultancy founded in 2006, extending Sorren into Nevada.
- 1 more confirmed on the firm's profile
- Alpine Investors · San Francisco, CA · runs a searcher program
People-first private equity behind Apex Service Partners, the country's largest HVAC, plumbing, and electrical consolidator. Its CEO-in-Training program hires operators into the businesses it buys.
- Opsahl Dawson · 2023 · A Pacific Northwest CPA firm, the founding investment of Ascend, Alpine's accounting platform.
Buyers is the shelf these come from, ordered by who closed something most recently.
How Big This Market Is
There are about 55,052 businesses in this industry. 18,609 of them (34%) have 5 to 99 employees: the band big enough to have something to sell, small enough to finance. Most of the rest are owner-operators with a job rather than a business to hand over.
Census County Business Patterns (2023). How often they change hands, and where they concentrate, is in Market Depth.
Who the Law Lets Own This
Licensed CPA firms performing attest work must keep majority CPA ownership in nearly every state.
How buyers structure around it: Non-CPAs buy non-attest practices (bookkeeping, most tax prep) or partner with a CPA majority owner.
Licensing is set state by state and changes, so confirm the current rule with the state board and your attorney before it shapes an offer. Every trade with a recorded rule is on Ownership & License Rules.
What It Costs to Replace the Owner
The multiples above are quoted on SDE, which adds the owner's pay back into earnings, so they hold only if you do the owner's job. Hire someone instead and the going rate for the role comes back out. For this trade that is usually the office manager who runs the back office, paid a median of $69,500 a year nationally. Subtract it from SDE before applying any multiple, because at a 3x multiple that wage also takes about $208,500 off what the business is worth to you.
First-line supervisors of office and administrative support workers, BLS Occupational Employment and Wage Statistics (2025), national, all industries, before payroll taxes and benefits. Every role, and the same arithmetic worked end to end, is in Manager Wages.
The Numbers That Run This Business
- Client retention by service line
- Recurring monthly engagements versus annual work
- Realization on billed hours
- Fee levels versus market
- Staff capacity through peak season