Build vs Buy in 2026: Why the Math Changed Now That Firms Are Selling for Record Multiples

For years, the safe advice was to build your own book instead of paying a premium for someone else’s. That advice is aging badly. Multiples now sit around 1.0x to 1.2x revenue, financial buyers accounted for over half of all accounting M&A activity through mid-2026, and organic client acquisition has slowed down at the same time it’s gotten pricier. 

A few years back, we’d tell buyers pretty plainly: build if you can, buying costs too much of a premium to make sense unless you’re in a hurry. We don’t say that anymore, not as a blanket rule anyway.

Financial acquirers made up 54.8% of accounting-services M&A activity through July 2026, and deal volume from those buyers jumped 69.1% year over year. That’s not a small shift.

At New Clients, Inc., we sit on both sides of this. Our GPS program helps buyers find and acquire practices. Our listings help owners who are ready to sell. So we watch build vs buy accounting practice decisions play out from both directions, and what’s changed lately is worth walking through honestly.

What does build vs buy mean when you’re talking about an accounting practice?

It’s the choice between growing a client base from nothing through your own marketing and referral effort, or acquiring a practice that already has clients, staff, and revenue attached to it. One path costs less on day one and more in time. The other costs more on day one and less in time. Neither is automatically smarter.

What actually determines the right answer isn’t some universal formula. It’s your capital, your timeline, and honestly your appetite for risk while you wait to find out if organic growth is working the way you hoped.

Why did valuations climb, and doesn’t that just make buying worse?

Multiples went up because demand went up faster than supply, mostly driven by institutional buyers. The average firm now sells for 1.0x to 1.2x annual revenue, roughly 4x to 5x EBITDA, and well-run firms with strong recurring CAS revenue and low client concentration can push past that into 1.3x to 1.5x territory. 

Here’s the thing people miss when they see that number and wince: higher multiples only look bad in isolation. The real question isn’t “did buying get more expensive.” It’s “did buying get more expensive faster than building did?” And building has quietly gotten harder too, client acquisition costs keep climbing, and the competitive noise in most markets has only gotten louder.

Building from zero versus buying, what’s the actual cost difference?

Building means paying, in time and marketing dollars, for every single client you land, with no guarantee any given month produces results. Buying means revenue starts the day the deal closes. That gap is bigger than most people account for when they’re mentally comparing the two paths.

A practice built from scratch usually needs three to five years to reach the revenue level an acquisition can deliver on closing day, assuming things go reasonably well. That’s not a knock on organic growth. It’s just the honest timeline.

Do you really need a huge amount of cash to buy a practice instead of building one?

Less than most people assume, mostly because financing structures have gotten more flexible. Traditional CPA-to-CPA deals price around 0.85x to 1.15x annual revenue, and the common structure blends cash at close with a seller note or earnout tied to how many clients stick around. A lot of deals land around 70% to 80% cash at closing, with the rest paid out over two or three years based on actual client retention. 

That structure matters a lot for anyone weighing build vs buy accounting practice options, because it lowers the real barrier to entry. You’re not writing one massive check out of savings. 

Is this actually still a good time to buy, or has the window closed with all this competition?

Depends heavily on where you’re shopping. Private equity has specifically driven up competition for larger, scalable firms, and that’s exactly where multiples have climbed the hardest. Smaller practices, the kind most individual buyers and growing firms are actually looking at, haven’t seen anywhere near that same pressure. Institutional buyers mostly aren’t interested in a $600K solo practice. 

That’s precisely the segment our GPS program and listings work in. The headline numbers about record multiples are true, but they’re describing a different market than the one most of our buyers are actually shopping in.

So how do you actually decide, build or buy?

Start with a blunt question: how fast do you actually need revenue, and what does waiting cost you if you build instead? If you’ve got three to five years of patience and genuinely strong marketing chops, building can still work, particularly with a real system behind it instead of scattered referrals and hope.

If you need traction sooner, or there’s a well-capitalized competitor already active in your market, buying an established practice with seller financing usually gets you there faster and with numbers you can plan around. This isn’t about one path being objectively correct. It’s about being honest with yourself about which timeline and risk tolerance you actually have, not the one you wish you had.

FAQs

Is buying an accounting practice actually cheaper than building one in 2026?

Yes, once you factor in time. Building takes three to five years to reach revenue a purchased practice delivers on day one, and buying is financeable through seller notes rather than requiring full cash upfront.

What multiples are accounting practices selling for right now?

Most sell for 1.0x to 1.2x annual revenue, with strong recurring-revenue firms carrying low client concentration commanding 1.3x to 1.5x or more.

How much upfront capital does a buyer need?

Usually $100,000 to $500,000 in equity for smaller deals, with the balance covered through SBA financing or a seller note structured as cash at close plus a retention-based payout.

Is client retention risk enough reason to avoid buying a practice?

Not really. Retention after a well-managed transition runs 75% to 80%, and most deal structures include earnouts or holdbacks specifically designed to share that risk between buyer and seller.

Why has the build vs buy accounting practice decision shifted toward buying?

Organic client acquisition has gotten slower and pricier at the same time acquisition financing has gotten more accessible, narrowing the gap that used to make building the obvious cheaper choice.