I learned to build financial models in a bedroom in New York.
My best friend works in finance there. When I went to see him, we would lock ourselves in his room for hours. We built acquisition models over and over again until I could complete one in under fifteen minutes.
It was training for investment banking interviews. I had no idea then that this discipline would become one of my main day-to-day tools.
Today, at RCA Brokers, financial modeling is the first thing we do when a new sell-side mandate comes in. We receive the financial statements, transfer them into Excel, and start building.
Not for the fun of it. To answer the real question: at what price does the business remain financeable and still make sense for a serious buyer?
What is financial modeling in a business sale?
An acquisition model simulates the deal from start to finish.
It combines the buyer’s equity, bank financing, the company’s future cash flow, and debt repayment over several years.
In the end, it answers three concrete questions:
- What a buyer can realistically pay without breaking the file
- What return the buyer earns on the capital they put in
- Whether the bank is likely to finance the transaction on workable terms
Two useful definitions:
- Normalized EBITDA: the company’s real operating profit once exceptional, personal, or non-recurring items have been removed
- IRR: the internal rate of return, or the buyer’s approximate annual return on the equity they invest
What does the model show in a concrete example?
Take a fictional company, ServicePro.
Assume the following:
- Normalized EBITDA: $500,000 per year
- Asking price: $2,000,000, or 4x EBITDA
- Buyer equity: 30%
- Bank debt: 70%, amortized over 7 years on typical market terms
This is a simplified example: assume stable working capital, limited additional capex, and no vendor take-back.
Here is what the model shows:
| Item | Amount |
|---|---|
| Normalized EBITDA | $500,000 |
| Purchase price | $2,000,000 |
| Buyer equity (30%) | $600,000 |
| Bank debt | $1,400,000 |
| Annual debt service | ~$250,000 |
| Cash flow after debt | ~$250,000 |
| Projected buyer return over 5 years (IRR) | ~25% |
In that scenario, the price is defensible.
The seller is within a reasonable market range. The buyer covers debt service and still keeps meaningful cash flow. The bank sees a file that makes sense.
In other words, the price is not only attractive. It is financeable.
That is also why a proper business valuation matters more than a rule of thumb: it gives you a price that can be defended in the buyer’s and lender’s language.
How do you spot a lowball offer?
Keep the same company, but change only the price.
Now a buyer offers $1,500,000 instead of $2,000,000.
The model immediately shows the impact:
- less debt to repay
- more cash available after debt service
- a projected return that climbs toward 50%
A 50% IRR is not automatically impossible, but in a relatively stable SME file it often signals that the proposed price gives a disproportionate share of the value to the buyer.
In many files, target returns land more in the 20% to 30% range, depending on the industry, perceived risk, capex needs, customer concentration, working capital needs, and financing structure.
When the projected return drifts far above that zone, the right question is simple: is the seller leaving money on the table?
The opposite is true as well.
If the seller asks for $3,000,000, the model may show that debt service becomes too heavy and the bank is unlikely to support the file. In that case, the price is not defensible either.
Why do I always start with this model?
I first learned this discipline in a very hands-on way, then refined it in professional settings.
Today, at RCA, I apply that same rigor to Quebec SMEs for a much more concrete question: what price actually holds up?
When a new mandate comes in, I use the model to support:
- the asking price
- the confidential memorandum
- the negotiation strategy
- the bank-risk assessment
It also sharpens the rest of the mandate: the sale process itself, the way we defend the file, and even why some strategic buyers can afford to pay more.
Selling a business is often the project of a lifetime.
Financial modeling does not replace judgment. It grounds judgment in the actual transaction.
For me, its role is to turn “I think it’s worth X” into “here is the price a buyer can follow, a bank can finance, and a seller can defend.”
Thinking about selling your business? A free valuation is often the first step to seeing your numbers clearly before going to market.
Key takeaways:
- Financial modeling tests a price in the real world — with debt, banking constraints, and buyer return built in
- A defensible price must work for the seller and remain financeable — not just feel right
- Lowball offers often show up in projected returns — when the buyer captures too much upside, the model makes it visible
- The model also protects against pricing too high — if debt service does not work, the transaction does not hold
- At RCA, it is the foundation of the mandate — not an extra document, but the starting point for strategy
