What is a lead worth? Setting your cost per lead

A lead is worth its gross profit times the chance it becomes a customer. Here is the formula, a worked example, and how to use it to judge a pay-per-lead quote.

A lead is worth the gross profit it could bring you, multiplied by the chance that it becomes a customer. That gives you a simple ceiling: average deal value × gross margin × close rate is the most you can pay for one lead and still break even. Your target cost per lead sits below that line.

This guide walks through the formula, a worked example with clearly hypothetical numbers, how lifetime value changes the picture, why close rate is the lever that matters most, and how to use your number to evaluate a pay-per-lead quote.

The formula: what one lead is worth

You need three numbers, all from your own business:

• Average deal value — what a typical new customer pays on the first job or sale.
• Gross margin — the share of that revenue left after the direct cost of delivering it (materials, labour, subcontractors), as a percentage.
• Close rate — the share of leads that become paying customers. Measure it on your own past leads, from first contact to signed deal, rather than borrowing someone else’s figure.

The break-even figure is a ceiling, not a target. At break-even, every sale pays for the leads it took to win it and nothing more — no room for sales time, overhead or profit. Most businesses decide what share of gross profit they’re comfortable spending on acquisition, and set their target cost per lead from there.

Where to find your numbers

Deal value and gross margin usually come from your accounting software or your job costing. Use the last six to twelve months of sales to new customers rather than your best or worst month. Close rate is the number many businesses don’t track. If that’s you, start with a simple count: how many leads came in last quarter, and how many of them became paying customers? Count every lead, including the ones you never reached — they’re part of the real picture.

If you sell several services with very different prices or margins, run the formula once per service. A single blended number can hide a service where leads are worth far more, or far less, than you think.

A worked example (hypothetical numbers)

The figures below are invented for illustration. They are not a benchmark, an industry average or a Yesleads price.

Imagine a renovation contractor with these numbers:

1. Gross profit per job: $10,000 × 40% = $4,000.
2. Break-even cost per lead: $4,000 × 20% = $800.
3. Target: the contractor is comfortable spending a quarter of gross profit to win a job, so $800 × 25% = $200 per lead.

At a one-in-five close rate, each lead is worth about $800 in gross profit to this business. A lead source that reliably delivers at or below $200, with the same close rate, fits the plan. One that costs more only makes sense if its leads close better.

Now change one input. If the close rate drops to 1 in 10, the break-even falls to $400. If it rises to 1 in 4, the break-even climbs to $1,000. The deal value and margin didn’t move; only the share of leads that turned into customers did. That is why close rate deserves most of your attention.

Lifetime value: when a lead is worth more than one sale

The first sale isn’t always the whole story. A customer who comes back for maintenance, buys again or refers a neighbour is worth more than the first invoice. Customer lifetime value (LTV) captures that: the total gross profit you expect from a customer over the whole relationship.

Replace “average deal value × gross margin” with lifetime gross profit and the same formula gives you a higher ceiling. Use it with care:

• Base it on what your customers actually do, not on what you hope they’ll do.
• Lifetime profit arrives over months or years, while you pay for the lead today. Cash flow sets a practical limit.
• Keep two numbers: a first-sale ceiling for day-to-day decisions, and a lifetime ceiling that tells you how far you can stretch in a competitive market.

Referrals are the hardest part to measure. If you can’t trace them reliably, leave them out of the calculation and treat them as a bonus.

Raise the close rate, raise what every lead is worth

Deal value and margin are hard to move quickly. Close rate is the input you influence most, and every improvement raises the value of each lead you buy.

Verified contact details

A lead you can’t reach can’t close. When a phone number is mistyped or an email is fake, that lead’s close rate is zero, and it quietly drags your average down. Yesleads verifies every lead: the prospect confirms their phone number with an SMS one-time code and their email with an email one-time code, so the contact details you receive are real and reachable. Our article on OTP lead verification explains how it works.

Fast follow-up

Someone who just asked for a quote is ready to talk now. The longer they wait, the more likely a competitor gets there first. AI instant engagement helps: it replies to a new lead within seconds and keeps the conversation going until your team takes over. More on this in our guide to speed to lead.

Persistent follow-up

Not every verified lead picks up the first call. A structured follow-up over several days — calls, texts and emails at different times — turns many of those into conversations. See how to follow up with leads who don’t answer.

Use your number to evaluate a pay-per-lead quote

Once you know your target cost per lead, a pay-per-lead quote becomes easy to judge: compare the price per lead to your target, then make sure the leads can close at the rate you assumed. Five questions to ask any provider:

1. What exactly counts as a billable lead? Look for a clear definition. At Yesleads, it’s a prospect who has confirmed both their phone number and their email by one-time code.
2. Is the price fixed per lead? A fixed price makes the math predictable. Yesleads quotes a fixed price per lead for your market, within a day.
3. Do you pay for anything else? With pay per lead, you don’t pay for impressions or clicks and there’s no ad budget to manage. Our comparison of pay per lead vs pay per click goes deeper.
4. What happens after delivery? A verified lead is billable whether or not it answers: its contact details are confirmed, and the follow-up is yours. Plan your follow-up capacity before you scale volume.
5. Can you track results by source? Record which leads close, so your close rate — and your target — stays current.

If the quoted price is below your target and your follow-up is solid, the math works. If it’s above, the real question is whether faster, more persistent follow-up on verified leads can lift your close rate enough to close the gap.

Next step

Work out your three numbers — deal value, margin, close rate — and you’ll know your ceiling before you talk to any lead provider. Then see how pricing works at Yesleads, or contact us for a fixed price per lead in your market.