Never Split the Difference: how to prepare a negotiation

Who should use it, and when not to

Use it before a price, contract, renewal, salary or vendor negotiation, when the other side has said no or gone silent, or when a deal keeps stalling and nobody knows why.

It isn't a replacement for knowing your numbers: set your limits first. For short written replies to common sales objections, see the objection handling skill. For a hard conversation with your own report, see the difficult conversation prep skill.

The core ideas

Tactical empathy. Listen for what the other side feels and needs, and show you heard it. People who feel understood are more willing to solve the problem with you.

Mirroring. Repeat the last few words they said, as a question. It invites them to say more.

Labeling. Name an emotion out loud ("It seems like the timing worries you"), then stay quiet. Naming a negative feeling tends to calm it.

The accusation audit. Say the worst things they might think of you before they do. It takes the sting out of them.

Calibrated questions. Questions that start with how or what, such as how you are supposed to do that, ask them to see your constraints. Avoid why, which sounds like blame.

"That's right" and "no". Voss aims for the other side to say "that's right" about your summary of their view, a sign of real understanding. He also argues that a question that invites "no" can make people feel safe and in control.

Black swans. Unknown facts that change everything, such as a hidden deadline or a boss's demand. Good questions bring them out.

A worked mini example

This is an illustration. A 6-person design studio quoted 380,000 pesos for a packaging redesign. The client's procurement lead replied that the budget is 250,000 and another agency quoted 240,000. The studio won't go below 300,000 for the full job, and the client needs the packaging for a trade fair in May.

Instead of meeting halfway, the studio opens with an accusation audit ("You probably think we're expensive compared with the other agency"), labels the deadline ("It seems like May is what really matters"), and asks calibrated questions: what does the other quote include, and how would she like to handle scope if the budget is fixed? It then offers the six products needed for the fair first for a lower fee, and the rest later.

How to prepare a negotiation

1. Set your limits first: goal, walk-away point and best alternative to a deal.
2. Map their side: what they want, fear and must report, and the unknowns to look for.
3. Write the accusation audit: three to five things they might think of you.
4. Draft labels for the emotions you expect to hear.
5. Draft five to seven calibrated questions, none starting with why.
6. Draft two or three questions that invite a safe no.
7. Plan the offer steps in advance, never past your walk-away point, and how you'll confirm real agreement.

The negotiation prep skill builds this plan from your notes and never crosses the limit you set.

Common mistakes

• Splitting the difference to end the tension. The middle often serves neither side.
• Labels as a script. They work only when they name what you actually heard.
• Arguing numbers before learning their constraint.
• Treating tactical empathy as manipulation. It works on understanding, not on lying.

Where it comes from

Chris Voss spent 24 years at the FBI and was its lead international kidnapping negotiator from 2003 to 2007. After leaving the FBI he founded The Black Swan Group, a negotiation training company, and wrote Never Split the Difference with journalist Tahl Raz in 2016. The techniques come from crisis negotiation and are presented for business and everyday use.

This page is an independent summary in our own words. It is not affiliated with or endorsed by Chris Voss, The Black Swan Group, or the publishers. The book's title is used only to name it. More explainers are in the business books index.

Questions

What is tactical empathy?

Chris Voss's term for understanding the other side's feelings and point of view, and showing that you understand them, so you can influence the negotiation. It is not agreeing with them.

What is a calibrated question?

An open question, usually starting with how or what, that asks the other side to help solve your problem, such as how you are supposed to meet a deadline. It gives them a feeling of control while you steer.

Why not split the difference?

Voss argues that meeting in the middle is often a bad deal for both sides: it ends discomfort rather than solving the problem, and it rewards whoever started with the more extreme number.