Two shops sell the same thing in the same town. Both report about a hundred enquiries a month, one from Google Ads, the other from organic rankings. Put the two dashboards side by side and you can’t tell them apart.
Give it half a year and they probably won’t look alike at all. A hundred leads can mean very different things depending on who they are, what they’re willing to spend and how far along they were when they found you. That scenario is made up, and simplified, but the survey data further down points the same way, so it’s worth sorting out before you commit your budget to one side.
Start with what paid search costs
Ads are simpler to price, so start there. WordStream’s latest report covers US campaigns from April 2025 to March 2026 and lands on $5.42 per click and $66.69 per lead. Go back to 2016 and the same report had clicks at $2.32. Lead costs haven’t ballooned because conversion rates rose from 2.7% to 8.18% over those years, and this year’s lead cost even slipped slightly, the first drop in five years.
Organic is slipperier. HubSpot-based figures reported by Previsible put SEO leads at $31 and PPC leads at $181. Set that beside WordStream’s $66.69 for paid and the two clearly don’t match. Different samples, different industries, no shared idea of what counts as a lead, so the gap isn’t a surprise. Treat any single benchmark, these included, as a rough guide.
SEO pricing has its own quirk. The retainer starts in month one while the leads arrive gradually, so the early cost per lead looks dreadful. Later the same fee gets spread over many more enquiries. Ads run the opposite way. The price is clear from day one and tends to stay put, or climb when competitors pile in.
What a lead is actually worth
NP Digital surveyed 500 marketers in early 2026 about earned versus paid leads. Paid leads closed more often, 17% to 11%. But each earned lead brought in $1,204 of revenue, against $958 for paid.
Divide revenue per lead by close rate and you get a rough average deal: about $5,600 for paid, about $10,900 for earned. That sum is mine, not theirs, and the underlying figures are marketers reporting on themselves, so don’t treat it as gospel. It does fit how people buy, though. Someone who has spent a week reading comparison pages usually turns up knowing what they need and prepared to pay properly for it.
Over a hundred leads, that’s roughly $95,800 against $120,400. Paid is more efficient. Organic is bigger.
One stat gets passed around a lot: SEO leads close at 14.6%, outbound leads at 1.7%. It comes from HubSpot and it’s real. But “outbound” there means cold outreach, so the comparison is organic against cold calling, not against ads. All it shows is that organic beats cold calling, which hardly needed proving, and it says nothing about SEO against paid.
What to expect from SEO services
“SEO services” covers a huge range, from a cheap monthly batch of blog posts to a proper commercial search programme. If leads are what you’re after, a few things separate the useful end from the rest.
The pages should be aimed at people who are ready to buy: pricing, “X versus Y”, “best for [situation]”, location pages. A general explainer might pull ten times the visitors and a tenth of the enquiries. The page also has to convert, because a ranking is wasted if the phone number is buried or the form asks for twelve fields. Then there’s reporting. You want leads broken down by page, phone calls counted alongside form fills, and if possible revenue pulled through from your CRM. A report that’s mostly rankings and traffic can’t tell you whether any of it is paying off.
Three questions are worth putting to a provider before you sign. How do they track calls? What’s the first page they’d build, and why? And what will month three look like, given that rankings usually lag behind the work?
When ads should win
Ads are the better choice when you’re launching and need to find out fast whether an offer lands, when demand peaks for a six-week window, when hardly anyone searches for what you sell, or when you need a dependable number of enquiries next month. There’s a bonus, too. Your search terms report shows what people actually typed before they got in touch, which is a ready-made to-do list for the organic side.
Check your own numbers
Pull three things from your CRM, split by source: close rate, average deal value, and how long leads wait for a first reply. Close rate times deal value gives you revenue per lead. To see how that plays out, take some made-up numbers. Paid leads close 20% of the time on $3,000 jobs, which works out at $600 a lead. Organic leads close 12% of the time on $5,500 jobs, so $660 a lead. Close, with organic nudging ahead. Then set each figure against what you pay per lead.
Don’t skip the third number. A well-qualified lead left waiting two days for a callback is money wasted, whichever channel found them.
So which one?
Most businesses end up wanting both, and the split moves as things develop. Use ads for this quarter’s pipeline and for testing which messages land. Put the longer-term money into SEO services that target commercial searches, where bigger and better-researched buyers tend to turn up. And measure both by revenue per lead, because the channel with the bigger number on the dashboard isn’t necessarily the one earning more.
Quick answers
Which is better for lead generation?
There’s no single winner. Your deadline, your margins and how long a sale takes to close will decide it. Paid is quicker and easier to steer. Organic tends to get cheaper per lead and, going by that survey, worth more.
How long before SEO services produce leads?
Months, varying with competition and the state of your site. Anyone promising leads within a fortnight is describing paid traffic.
Can I run both?
Yes. Keep the reporting separate so you can see what each one is really doing.
Can I trust benchmarks?
As a starting point. Your own CRM is the only data that’s really about you.
