Velonix Newsletter Get in touch
Services
Company
Case Studies
Insights
Knowledge Hub
Newsletter Get in touch
Basics

Buy-side vs sell-side QoE: what is the difference?

Also known as: buy-side QoE, sell-side QoE, seller-commissioned diligence

Short answer

A buy-side QoE is commissioned by the buyer to test the seller's numbers and support the price. A sell-side QoE is commissioned by the seller before going to market, so that buyers see a supported EBITDA and fewer surprises arise later.

Updated November 2026

Buy-side vs sell-side diligence, explained simply

The two examine the same business from opposite sides of the table. A buy-side report is the buyer’s independent view. A sell-side report gives the seller control of the earnings narrative and shortens the process, although buyers normally still perform confirmatory work.

A sell-side report is only as credible as its independence, so it should include adjustments that reduce EBITDA as well as those that increase it.

Two views of the same business

Illustrative

Sell-side work moves the discovery of issues from the buyer’s late-stage review to the seller’s preparation.

Worked example

Four months before launching a sale process, Alder Creek’s owner commissions a sell-side QoE. It identifies the unrecorded bonuses and below-market related-party rent. The owner corrects the accounting and markets the business on adjusted EBITDA of $4.6 million rather than $5.0 million.

Without this work, a buyer would likely have identified the same issues in week five of diligence and reduced the price from $40.0 million. A late price reduction also costs credibility and can end a transaction.

Alder Creek Manufacturing, Inc. is a fictional company. All figures are illustrative.

Why it matters in a deal

Sell-side diligence gives the seller control over how issues are presented and sequenced. Buyers still typically perform a shorter confirmatory review, but it is faster and better focused.

Red flags

  • A sell-side report containing only adjustments in the seller’s favor
  • A sell-side report prepared on an outdated period

Frequently asked questions

Does a sell-side QoE replace the buyer’s own work?
Usually not. The buyer typically performs a shorter confirmatory review.
When should a seller commission one?
Ideally three to six months before going to market, so that issues can be corrected.

Discuss your requirements with our team