Is SEO worth it: yes, when the margin from organic traffic exceeds the cost of the work before the budget runs out. The sum is a division: monthly fee divided by the value of a click tells you how many clicks a month you need to break even, and from there you see whether search demand in your sector contains those clicks.
Do the pages that answer this question do the sum?
Not really.
We looked at the first page of Google UK for "is seo worth it" on 26 September 2026. It opens with an AI Overview that answers yes and lists generic benefits, followed by Reddit and Quora threads, a video carousel and five articles from agencies and tool vendors.
Only one of them, from The SEO Works, models the return with real campaign figures, and it works on payback periods rather than on the monthly sum.
Here we do the sum, with 1,000 queries measured in Search Console and three real projects.
The value of a click is where everything starts (£500 margin, £10 a click)
An organic click is worth the average margin on a customer multiplied by the probability that the click becomes a customer.
Value of a click = margin per customer × conversion rate
With a margin of £500 and a 2% conversion rate, a click is worth £10.
So a £1,000 monthly retainer pays for itself with 100 organic clicks a month.
Not "more traffic": one hundred clicks, counted.
Where do the two figures come from?
Your own data. The conversion rate from Google Analytics, because the difference between 1% and 3% triples the traffic you need and moves break-even by months. The margin after costs, not the list price.
But watch what you count as a conversion.
At Valore Solare, an Italian solar installer, the Google Ads account recorded 15,267 "conversions" in a month against 5,467 clicks. They were technical events, not enquiries: real enquiries in the first full month were 9.
With a conversion rate inflated like that, any fee looks like it pays for itself.
The same two figures let you calculate SEO ROI after the fact.
How many clicks you need to cover the fee (and how many impressions)
With a £500 margin per customer and a 2% conversion rate, a £1,000 monthly retainer needs 100 organic clicks, about 2,350 impressions a month. The fees in the table sit within UK bands, from about £300 to over £20,000 a month, with most ongoing offers between £500 and £5,000 (details in how much SEO costs).
| Margin per customer | Value of a click | Clicks/month for a £500 fee | £1,000 fee | £2,500 fee | Impressions/month equivalent to the £1,000 fee |
|---|---|---|---|---|---|
| £200 | £4 | 125 | 250 | 625 | 5,882 |
| £500 | £10 | 50 | 100 | 250 | 2,353 |
| £2,000 | £40 | 13 | 25 | 63 | 588 |
| £5,000 | £100 | 5 | 10 | 25 | 235 |
The last column is the one that decides.
With £500 of margin per customer, if all the search demand relevant to you is worth fewer than 2,400 impressions a month, a £1,000 retainer will not pay back even at full speed.
The clicks simply are not there.
Do you know how many impressions your market is worth?
With £500 of margin, below 2,400 impressions a month a £1,000 retainer does not pay back. Let's do the sum on your keywords before you sign.
Book a strategy consultationWhat a position is really worth (1,000 queries measured)
Across 1,000 queries measured in Search Console, average positions 1-1.9 had a 19.62% CTR, positions 2-2.9 just 2.31%. The data comes from an Italian outdoor equipment ecommerce site we manage (web search, Italy, 1 July - 25 August 2026): 21,701 impressions, 922 clicks, overall CTR 4.25%.
Why not use the CTR curves you find online?
Because they come from large aggregate studies, on samples of sites that do not look like yours.
| Average position band | Queries | Impressions | Clicks | Weighted CTR |
|---|---|---|---|---|
| 1.0 - 1.9 | 118 | 3,547 | 696 | 19.62% |
| 2.0 - 2.9 | 77 | 3,934 | 91 | 2.31% |
| 3.0 - 3.9 | 85 | 2,311 | 46 | 1.99% |
| 4.0 - 5.9 | 131 | 2,408 | 50 | 2.08% |
| 6.0 - 10.0 | 206 | 4,561 | 23 | 0.50% |
| 10.1 - 20.0 | 275 | 4,537 | 15 | 0.33% |
| over 20 | 108 | 403 | 1 | 0.25% |
| Total | 1,000 | 21,701 | 922 | 4.25% |
The jump that matters is between the first and second band.
For the same impressions, dropping one average position costs eight times the clicks.
And from page two down traffic becomes a rounding error: 4,537 impressions in the 10-20 band produced fifteen clicks in eight weeks.
Two caveats: average position aggregates different impressions and compresses the CTR of the top bands; the export stops at a thousand rows (the API limit), so the "over 20" band is underestimated. The ratio between the top bands holds; the absolute value of the tail does not.
How much AI has taken out of the sum (just over 10% on a real cluster)
On the cluster of an Italian LED wall manufacturer, just over 10% of search volume is traffic that will never reach any site because of AI Overviews.
The Pew Research Center analysed 68,879 Google searches by 900 US adults (March 2025), 12,593 with an AI summary at the top. With the summary, users clicked a traditional result in 8% of visits; without it, in 15%; links inside the summary, 1%. It is a US sample.
Rand Fishkin of SparkToro, using the Similarweb panel, measured that in the first four months of 2026, 68.01% of Google searches in the United States ended without a click, against 60.45% in 2024.
And on a real cluster?
We measured it on the cluster of Macropix, an Italian manufacturer of LED walls and LED screens:
- 32.7% of tracked keywords show an AI Overview;
- those keywords account for 24.7% of the cluster's volume;
- when the AI Overview appears, 43% of searches end without a click.
Multiply the two shares: just over 10%.
For the break-even sum: impressions needed +10%. Not a reason to throw out the model.
The share varies by sector and query type, so measure how many of your own keywords actually trigger an AI Overview. On transactional searches zero-click searches are still marginal; informational searches are where it hurts.
How much demand there really is in the UK (only 6% of adults are offline)
According to Ofcom's Adults' Media Use and Attitudes report, published on 2 April 2026 (7,533 adults, fieldwork September to November 2025), only 6% of UK adults have no home internet access, and 83% of that group are aged 65 or over. One in five online adults (20%) goes online only through a smartphone.
If you sell boilers or hearing aids, your customer is online.
But in two years won't everyone search with AI?
UK figures move faster than much of Europe but are shallower than the story suggests (more in the guide to marketing for small businesses).
In its Business Insights and Conditions Survey the ONS measures that in June 2026 around 35% of UK businesses with ten or more employees used at least one AI technology, up from around 12% in September 2023. Among businesses with 250 or more employees it is 49%. But adopters use on average 1.6 AI technologies, and only 10% say they use AI extensively.
Anyone who puts SEO off "because in two years everyone will search with AI" is betting on a replacement that UK data do not yet show.
Still, falling clicks and rising adoption move in the same direction: if you set up organic search work today, part of the return will come as citations inside generated answers, that is GEO, not only as sessions in Analytics.
Three cases where the sum does not add up (demand, margin, time)
The SEO sum does not add up in three cases: when demand is too small, when the margin is too low and when your time horizon is shorter than the technical lead time.
Demand is too small
New products, categories people do not know they should search for, very vertical B2B niches. If the volumes of all relevant queries do not reach the impressions in the table, the channel cannot pay back the fee: demand has to be created elsewhere, and SEO becomes a second-year investment.
The margin is too low
With £200 of margin and a 2% conversion rate, a £1,000 retainer needs 250 clicks a month, almost 5,900 impressions.
An ecommerce site with a low average basket only gets there with a wide catalogue: that is why ecommerce SEO is won on category pages, not on a handful of head keywords. Thin margins and a narrow catalogue: the sum does not close.
The time horizon is shorter than the technical lead time
In Ahrefs' 2025 study only 1.74% of published pages reach the top 10 within a year, and of those that do, 40.82% get there within the first month.
In Morningscore's February 2026 survey of 75 SEO practitioners, 67.2% see the first result between the second and fourth month. The studies and our own numbers are in the article on how long SEO takes to show results.
Need revenue within the quarter? That budget works harder on Google Ads, and SEO can start when cash flow allows.
What actually broke even, on three projects (high margin, high volume, from zero)
On three real projects SEO broke even by different routes: high margin with low volumes, low margin with lots of clicks, and a start from zero that by month eight had not yet paid back.
One: high margin, modest volumes. Macropix sells LED walls to large companies and public bodies in Italy: the top-margin row of the table. The main keyword in the cluster moved from position 88 to 2, and in July 2026 the domain held 25.55% share of voice on the LED wall cluster, ahead of Amazon. On the paid side, €805 produced conversions at €44.93 each (CTR 3.59%, CPC €0.81), with conversions up 84.2% on the previous twelve months.
Two: low margin, high volumes. The outdoor ecommerce site from the table, in twelve months: 583,661 impressions and 13,704 clicks from Italy, average position 6.6, CTR 2.35%. The sum closes on the number of clicks, not on any single ranking.
Three: a services site starting from nothing. Average position from 47.5 to 16.9 in eight months (a 64% improvement), daily clicks from 1.31 to 1.78.
Crumbs? Yes: by month eight the fee had not yet been recovered.
This is the phase in which almost everyone turns off the tap, and in which you need leading indicators and goals written with numbers and dates to know whether what you pay for is working.
What do the three have in common? The business model, not the sector. A B2B company with deals worth tens of thousands of pounds breaks even on ten clicks a month; a neighbourhood business on even less, with local queries.
The cost of stopping (72.9% of top 10 pages are over three years old)
In Ahrefs' 2025 study 72.9% of pages in the top 10 are more than three years old, against 59% in 2017: a page's age is itself a competitive advantage.
A paid campaign switches off and the next day traffic is zero, but no capital has been burnt: it was rent. Organic rankings build up and are lost slowly.
So where is the problem?
If you pause for six months and restart, you do not pick up where you left off. You restart further back, because the pages that overtook you have built up months of age you will have to buy back.
A small, continuous retainer almost always beats a large one-off project.
The question to ask a supplier before signing is not "how much traffic will you bring me", but "what happens to my site if I stop in a year". If they cannot answer, the quote is a list of activities, not a plan.
Thinking of pausing, or of not starting?
72.9% of pages in the top 10 are over three years old: every month off is age you will have to buy back. Let's do the break-even sum on your margins.
Book a strategy consultationFrequently asked questions
It depends: not on turnover but on margin per customer and conversion rate. A £1,000 monthly retainer pays for itself with 100 organic clicks a month if each customer leaves £500 of margin and 2% of visitors buy; with £5,000 of margin, ten clicks are enough. Turnover only matters when deciding how much you can invest up front.
Yes, but the sum needs adjusting. On the Macropix LED wall cluster, 32.7% of keywords show an AI Overview and those keywords account for 24.7% of the volume; where it appears, 43% of searches end without a click. In other words, just over 10% of that volume will never reach a site, so the impressions needed to break even rise by about a tenth.
It depends: on the time horizon. If you need leads within the quarter, Google Ads: it switches on and produces, and cost per conversion is measurable from day one. If the business can fund six to twelve months up front, SEO costs less per lead once running.
It depends: before clicks arrive, look at impressions and average position on the project keywords, which move weeks ahead of traffic. In Morningscore's February 2026 survey of 75 SEO practitioners, 67.2% see the first result between the second and fourth month. If by month six impressions on the target cluster have not moved, patience is not the problem.
It depends: it makes sense when the margin per customer is high enough to offset the low volumes. Macropix is the example: a few hundred monthly searches on the main cluster, but a single order is worth more than a year of fees. With low volumes and a thin margin, move the budget to existing demand or direct prospecting.
So, is SEO worth it? (the sum in three lines)
Not "more traffic", but one hundred counted clicks: a £1,000 fee divided by £10 a click.
Not someone else's CTR curve, but yours: 19.62% in first position, 2.31% in second.
Not fear of AI, but 10% more impressions to put into the sum.
Two things to do today.
One: take your real conversion rate from Analytics, counting only real enquiries, and multiply it by your average margin. That is the value of your click.
Two: divide the fee you have been quoted by that value, and check in Search Console whether your market's impressions are enough.
The twelve changes that move the needle most and the projects we applied them to show where we start. For the sum on your own numbers, start from our SEO service or book a strategy consultation.
See you next time!
