Negotiating With Your Biggest CustomerBiggest Customer 21 October 2026 · 4 min read · 438 reads
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Negotiating With Your Biggest Customer
When one buyer is 30 percent of your revenue, a demand for a discount is really a question about risk. Trade on interests, not positions.
Say your largest client accounts for ₹1.8 crore of a ₹6 crore business. At renewal, the purchase head says, "Our budget is cut. We need 8 percent off, or we will look at other vendors."
The sentence is a position. It is a number
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and
a
threat.
If
you
respond
to
the
number,
you
will
lose
margin.
If
you
respond
to
what
sits
behind
it,
you
may
keep
margin
and
the
account.
Positions and interests
Roger Fisher, William Ury and Bruce Patton, in Getting to Yes, draw a line between positions, what someone says they want, and interests, why they want it. Their advice is to negotiate on interests, because several different positions can serve the same interest.
"Eight percent off" is a position. The interest may be a budget target, a boss's expectation, a fear of paying more than rivals, or a cash crunch. Each calls for a different response.
Do the sums before you meet
Start with what a cut would cost. Eight percent of ₹1.8 crore is ₹14.4 lakh. If your margin on this account is 20 percent, that is ₹36 lakh of margin. The cut removes 40 percent of it. This is an illustrative example.
Now work out your alternative. If you lost the account entirely, could you refill the capacity? How long would it take? At what margin? This is your walk-away, in the language of Getting to Yes, and it sets the floor.
Then work out theirs. Switching vendors costs them time, risk and retraining. That is a real cost, and it is part of your position. You do not need to say it. You need to know it.
Ask what is behind the number
Open the meeting by asking questions, not by countering.
- "Help me understand what is driving the 8 percent."
- "What would a good outcome look like for your team this year?"
- "What happens on your side if we cannot reach it?"
Listen for the interest. If it is a budget cap, you may trade on payment timing, volume or scope. If it is internal pressure to show savings, you might give a smaller visible concession tied to something real.
Trade, never just give
If you give a discount for nothing, you teach the buyer to ask every year. Instead, link each concession to a return.
- Volume or term: a 3 percent cut for a two-year commitment.
- Payment: a cut for payment in 15 days instead of 60. If you borrow at 12 percent a year, getting cash 45 days sooner is worth about 1.5 percent, so a 2 percent cut would cost you a little more than it saves. Check the maths on your own numbers.
- Scope: keep the price, remove a service that costs you more than it earns.
- Predictability: a fixed price for twelve months protects them from your input costs too.
Flow: Ask what is behind the number > Know both alternatives > Offer linked trades > Agree and record | Each concession buys something
Use objective standards
Fisher, Ury and Patton also advise using objective criteria, such as market rates, past contracts or independent benchmarks. If the buyer claims rivals are cheaper, ask to see the like-for-like comparison. If they do not have one, the claim loses force. If they do, you learn where you really stand.
Be careful with this tactic. Bring your own evidence, not invented figures. If your price is above the market for a reason, say the reason: service level, quality, response time.
Stay human
Tough negotiation does not need a cold manner. The authors' advice is to separate the people from the problem. Be gentle with the person and firm on the issue. The purchase head is also under pressure, and a partner who helps them meet it will be remembered.
Diversify quietly
The best long-term answer sits outside the meeting. If one client holds 30 percent of revenue, every negotiation is tilted. Set a target to bring them below 20 percent over two years. Each new account improves your alternative.
Try this
Before your next renewal:
- Write the cost of their ask in ₹ and as a share of your margin.
- Write your alternative and theirs.
- Prepare three linked trades, each asking for something in return.
- Open the meeting with two questions about what is behind the number.
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