Vet Practice Acquisition ROI Calculator

Before you sign an LOI, run the numbers. This calculator models your year-1 net income, monthly loan payment, how long until you're ahead of your associate salary, and what your practice equity looks like at year 10.

What this calculator assumes (and what it doesn't)

The model uses your EBITDA margin to estimate year-1 owner earnings, then subtracts debt service. It grows collections at 3%/year, values the practice at 10× EBITDA at year 10, and compares your wealth to an associate who invests the down payment and any annual salary advantage at your chosen return rate.

What it doesn't model: your compensation structure (W-2 vs. owner distribution), S-corp payroll taxes, state income taxes, working capital needs, or practice-specific risks. Those matter — which is why the calculator ends with a referral to a vet-specialist advisor, not a purchase decision.

How vet practice acquisition loans actually work

SBA 7(a) is the standard financing vehicle for practice acquisitions under $5M. Key terms in 2026:

• Loan maximum: $5M (SBA guarantee portion capped at $3.75M).
• Down payment: 10–20% equity injection required. Most vet lenders ask for 15%.
• Term: 10 years for practice goodwill + equipment; up to 25 years if real estate is included.
• Rate: Variable, typically prime + 2.75% for loans over $350K. Some lenders offer fixed-rate alternatives at a premium.
• Collateral: Practice assets + SBA lien. Personal guarantee almost always required for >20% owners.
• Lender specialization matters: National veterinary lenders (Live Oak Bank, Provide, Bank of America Practice Solutions) know vet practice cash flow and can close faster than a local bank that has never financed a practice.

Understanding your year-1 net income

The year-1 number is your EBITDA minus debt service — what hits your bank account as owner. A few things eat into it that the calculator doesn't model:

• S-corp reasonable compensation: If you operate as an S-corp, you need to pay yourself a market salary (subject to FICA). The excess can be taken as a distribution. This is a tax strategy your advisor structures; the calculator treats the full EBITDA as available to you.
• Working capital buffer: Keep 2–3 months of operating expenses in reserve, especially if you plan to add services or hire.
• Capex cycle: Dental X-ray units, anesthesia machines, and ultrasound equipment cycle roughly every 5–10 years. A practice that hasn't replaced equipment in 8 years has a hidden liability.
• Transition attrition: Plan for 5–15% client attrition if the prior owner had a strong personal following. Build that into your first-year projection.

Associate vs. owner: the 10-year picture

The 10-year wealth comparison captures two things most vets underestimate:

1. Loan paydown = forced savings. Every mortgage payment builds equity. By year 10, you've retired $300K–$600K of principal (depending on loan size and term).
2. Practice appreciation. A $1.2M-collection practice growing 3%/year becomes a $1.6M practice by year 10. At a 10× EBITDA multiple, that's a meaningful exit. Corporate buyers are still active in the vet space; a well-run practice in a growing suburb will find buyers.

The associate who invests diligently (down payment + annual savings advantage) can build a substantial portfolio. But they have no asset to sell at exit — just the portfolio. The owner has both a portfolio and a practice. That's the structural advantage ownership creates over a 10-year hold.

When ownership loses the comparison

The model can produce a negative wealth difference. That happens when:

• Purchase price is high relative to EBITDA (overpaying for goodwill).
• EBITDA margin is thin (owner nets less than an associate after debt service).
• The associate comparison assumes a high savings rate and strong investment return.

If the calculator shows ownership behind at year 10, don't assume the deal is wrong — but do interrogate it. Is the EBITDA margin accurate? Can you grow collections? Is there a multiple expansion story (specialty services, second location)? Or is the seller pricing in growth that hasn't happened yet?