Most business owners sit across from a buyer at the closing table and feel it, the moment when years of careful tax planning turns into a smaller check than they expected.

They minimized taxes every year. They bought the trucks, ran the meals through the business, put family on payroll, and kept net income as low as the law allowed. Their CPA was pleased. The IRS got less.

The buyer's broker was happy too. Because the owner just spent a decade systematically reducing the number that drives their valuation.

What Buyers Actually Pay For

When a buyer acquires a business, they are not buying your revenue. They are not buying your brand, your equipment, or your client list in isolation. They are buying cash flow, specifically, the cash a capable owner-operator can extract from the business each year.

That number has a name: Seller's Discretionary Earnings, or SDE.

SDE starts with net income. Then it adds back in everything you ran through the business that won't be the new owner's expense: your salary and benefits, one-time costs that won't recur, personal expenses you ran through the company, and any non-cash charges like depreciation.

The formula: Net Income + Owner Compensation + Add-backs = SDE

Then a multiple gets applied to SDE, typically 2x to 4x for a small business, and higher for businesses with strong systems, recurring revenue, and low owner-dependence.

A business with $300,000 SDE at a 3x multiple is a $900,000 business. At $200,000 SDE with the same multiple, it's a $600,000 business. The multiple is the lever. SDE is the base.

The Add-Back Game Has Limits

When a business has been deliberately managed to minimize taxes, there is a natural assumption that add-backs will recover the value. If you ran $100,000 in personal expenses through the business, you just add them back, right?

Sometimes. But not always.

Add-backs require documentation. An aggressive buyer or their broker will scrutinize every line. Expenses that look personal and lack paper trails get challenged. Informal arrangements (family on payroll who didn't really work, vehicles with no business mileage logs) get discounted or excluded entirely.

More importantly, years of tax minimization change more than just the numbers on the return. They change the business. When you buy trucks you don't need, you now have trucks that require maintenance, insurance, and eventual replacement. When you put family on payroll, you now have labor costs that are genuinely real if the new owner cannot inherit those arrangements. The add-back restores the number. It does not reverse the decision.

The Real Math

Here's what the conversation usually skips.

A healthy business generating $100,000 in profit owes roughly $20,000 in taxes. That's the exposure. So the question becomes: does it make sense to buy two trucks ($100,000 in equipment) to eliminate that $20,000 tax bill?

Run the numbers: you spent $100,000 to avoid paying $20,000. Net position: negative $80,000. You didn't save money. You destroyed it, and handed $100,000 of working capital to a bank or equipment dealer in the process.

The tax liability isn't the problem. It's proof the business made money. Buying things you don't need to escape a tax bill is the problem. It leaves the business with less cash, more debt, and lower SDE than if you'd simply paid the taxes and kept your cash.

This is exactly why SDE matters. It strips out the moves owners make to minimize taxes (the trucks, the meals, the family member on payroll) and shows what the business actually earns when it's run for profit, not for avoidance. A buyer who understands SDE doesn't get confused by low net income. A seller who understands it stops destroying enterprise value before the deal ever starts.

So Why Does the CPA Recommend It?

If the math is that obvious, why does the CPA tell you to buy the trucks?

Because the CPA has been telling you to make estimated tax payments all year. If April arrives with a surprise bill (one big enough to make you ask questions) you might start wondering whether your CPA was actually doing their job. That's an uncomfortable conversation. The truck purchase makes the tax bill disappear and makes the conversation unnecessary.

This isn't tax strategy. It's CYA strategy.

The CPA isn't protecting your wealth. They're protecting their April. Your $80,000 loss is the price of their peace of mind.

A real business advisor (one whose job is your outcome, not their relationship) runs the actual math and tells you to write the check to the IRS. It's the cheapest option on the table.

What This Costs at Exit

The damage compounds.

Every dollar of unnecessary expense you run through the business is a dollar removed from SDE. Apply the multiple and you see the real cost.

A $100,000 truck purchase does not cost $100,000. At a 3x multiple, it costs $300,000 in enterprise value, plus the $100,000 cash outlay. That's $400,000 of damage from a single decision made to avoid a $20,000 tax bill.

Most business owners make this kind of decision every year for a decade. By exit, the gap between what the business could have been worth and what it will sell for is not a rounding error. It is the size of a second business.

The Honest Audit

Before you list the business (before you engage a broker, before you talk to a buyer) run the honest version of your numbers.

What would SDE look like if you had run this business for profit instead of for tax avoidance? What decisions in the last three years compressed the number that drives your valuation? What does the real business actually earn, stripped of every move you made for the IRS?

That number is the business you built. The number on your tax return is the story you told the IRS.

Buyers pay for one of them. Most sellers don't find out which one until they're at the table.

, David Robertson / ExitReadyOwner.com