Earnings, not revenue
The single most common misconception is that a practice is valued on what it bills. It is valued on what it earns, adjusted, and then a factor is applied to that.
Which means two practices with identical revenue can be worth materially different amounts — because one of them has a cost structure, a doctor mix and a set of add-backs that produce more defendable earnings than the other.
Doctor count moves the number more than owners expect
Most owners assume value tracks revenue. It tracks doctors. A single-doctor practice and a multi-doctor practice do not merely sell for different amounts — they sell to different buyers, on different logic, because a practice dependent on one departing veterinarian is a different risk from one that keeps running without any single person.
That has a consequence worth sitting with. One resignation can move a practice from one category toward the other, quietly, over a couple of years, while nobody is measuring it. Owners frequently carry a number in their head from three years ago and discover it has moved at the exact moment they have the least leverage to do anything about it.
The trailing twelve months matter more than last year
Buyers underwrite the trailing twelve months, not the last completed tax year. A practice that is growing quickly can be worth meaningfully more after another quarter, because three strong recent months replace three weaker older ones in the trailing figure.
We have advised owners to wait ninety days for exactly that reason, and the wait has been worth considerably more than the delay cost.
What a valuation is, and is not
A defendable valuation is one that can be supported line by line to a buyer's diligence team. That is the standard we underwrite to, because the purpose is not to flatter you — it is to hold up under scrutiny and give us the ground to push back when an offer comes in below it.
It is still a range until a buyer signs. Anyone offering a single precise figure for a practice they have not examined is selling you something.