SDE and Add-Back Sanity Checks for Business Buyers

Seller discretionary earnings, or SDE, is often used in SMB acquisition analysis to estimate owner-benefit cash flow before financing.

It can be useful, but it is not proof. SDE is only as strong as the financials, adjustments, and support behind it.

Add-backs can change the entire deal. A business that looks average on reported earnings can look attractive after adjustments.

That is exactly why buyers need an SDE sanity check. Adjusted SDE can make a weak deal look stronger than it is.

Some add-backs are reasonable. Others are wishful thinking. The buyer has to separate personal expenses, true one-time costs, market-rate replacement costs, owner compensation, and expenses that will continue after close.

A weak add-back does more than inflate earnings. It can also inflate debt support, buyer confidence, and the price a buyer is willing to defend.

A seller or broker can present add-backs in a CIM, teaser, or listing. That does not mean a lender, CPA, or diligence provider will accept them.

Lender-reviewed add-backs matter because debt support depends on adjustments that can survive outside review.

ADE looks for signals that reported earnings, SDE, adjusted EBITDA, and add-backs need more support before the buyer trusts the output.

It can flag weak financial quality, unsupported adjustments, lender-readiness gaps, and situations where a deal only works after aggressive assumptions.

ADE is not a CPA, lender, QoE provider, or diligence report. It helps the buyer identify pressure points before LOI.

A serious buyer still needs accounting review, lender review, source documents, tax returns, bank statements, and judgment before relying on adjusted earnings.