Most vet clinic owners I talk to know their monthly revenue to the nearest lakh. Some know their profit margin. Almost none know the three numbers that actually determine whether their practice has a future.
Revenue is a vanity metric. I’ve seen clinics doing ₹15 lakhs a month that were slowly going broke, and clinics doing ₹4 lakhs a month that were healthy and growing. The difference wasn’t the top line. It was the relationship between three underlying numbers.
Number 1: Revenue per vet-hour
This is the single most important number in your practice and almost nobody tracks it. Take your total revenue for the month. Divide it by the total hours your vets spent on billable work (consultations, procedures, surgery — not admin, not lunch, not phone calls). That’s your revenue per vet-hour.
In India, a healthy single-vet clinic generates ₹2,500–₹4,500 per vet-hour. In the US, it’s $250–$450. In the UK, £180–£320. If you’re significantly below these ranges, it means one of three things: your prices are too low, you’re not capturing all billable services, or your vets are spending too much time on non-billable work. Usually it’s all three.
Why this matters more than total revenue: a clinic doing ₹10 lakhs/month with one vet working 50-hour weeks (revenue per vet-hour: ₹2,500) is in worse shape than a clinic doing ₹6 lakhs/month with one vet working 30 billable hours (revenue per vet-hour: ₹5,000). The second clinic’s vet isn’t burned out, has room to grow, and is capturing more value per interaction.
Tracking this number over time tells you whether your operational changes are actually working. Added a new service? Revenue per vet-hour should go up. Hired a new tech to free up the vet? Revenue per vet-hour should go up. Invested in AI documentation? Revenue per vet-hour should go up. If it doesn’t, the change didn’t do what you thought it did.
Number 2: Cost of goods as percentage of revenue
COGS ratio. The percentage of your revenue that goes to direct costs — drugs, vaccines, consumables, lab fees. Not rent, not salaries, not electricity. Just the direct materials consumed in delivering care.
A well-run vet clinic keeps this between 20–28%. If you’re above 30%, you’re either selling drugs at too-thin margins, experiencing waste and expiry losses, or over-ordering. If you’re below 18%, you might be underinvesting in quality — using cheaper consumables where better ones would improve outcomes.
This number is remarkably consistent across geographies when the practice is healthy. Indian clinics at 22–26%. US clinics at 20–25%. UK clinics at 21–27%. The fact that it holds across very different pricing structures tells you it’s a genuine operational indicator, not an artifact of local economics.
The most common problem I see: COGS slowly creeping upward over years because drug prices rise faster than service prices. A clinic that was at 22% three years ago is now at 29% and the owner hasn’t noticed because they don’t track it. They just know margins feel tighter. This is exactly the pricing problem I wrote about recently — it shows up here first.
Number 3: Client retention rate
What percentage of your active clients from 12 months ago are still active today? “Active” meaning they’ve visited at least once in the past 12 months.
Healthy clinics retain 82–90% of clients year-over-year. Average clinics retain 75–80%. Struggling clinics are below 75%. Note that these numbers account for natural attrition (pets dying, owners relocating) — which typically runs 5–8% per year and is unavoidable.
Retention rate is a leading indicator. Revenue is a lagging indicator. By the time low retention shows up as declining revenue, you’ve already lost the clients. But if you track retention rate monthly, you’ll spot problems 6–12 months before they hit your bank account.
Here’s the calculation: count the number of unique clients who visited in the previous 12-month period. Count how many of those same clients visited in the current 12-month period. Divide the second by the first. That’s your retention rate. If you can’t do this calculation because your records aren’t structured enough to count unique clients over time, that’s a problem worth solving by itself.
What the three numbers tell you together
Each number alone is useful. Together, they tell a complete story.
- High RPH + low COGS + high retention: Your practice is healthy. Focus on growth.
- Low RPH + normal COGS + high retention: Pricing problem. Your clients love you but you’re undercharging. Easiest fix on this list.
- Normal RPH + high COGS + normal retention: Inventory or procurement problem. Expiry waste, over-ordering, or thin drug margins.
- Normal RPH + normal COGS + low retention: Client experience or follow-through problem. The clinical work is fine but the business relationship isn’t being maintained.
- Low everything: Systemic problem. Usually indicates the practice needs operational overhaul, not incremental fixes.
Start tracking today
You don’t need fancy software to calculate these three numbers. A calculator and your bank statements will get you most of the way there. Revenue per vet-hour requires knowing how many hours your vets actually spend on billable work (guess conservatively). COGS ratio requires separating your drug and supply purchases from your other expenses. Retention rate requires a list of clients from this time last year and a count of how many came back.
That said, tracking these manually every month is exactly the kind of thing that stops happening once you’re busy. Proper practice management software makes them available automatically. But even doing it once, right now, is worth an hour of your time. You might discover you’re in better shape than you thought. Or you might discover that the vague feeling of “things aren’t quite right” has very specific, fixable causes.
The difference between a clinic that thrives and one that slowly winds down isn’t usually talent or location or luck. It’s whether the owner is looking at the numbers that actually matter or just watching the revenue line and hoping for the best.