Guide · SEO vs. SEA
SEO vs. SEA: The Calculation Instead of the Matter of Belief
SEA delivers immediately, SEO usually pays off from month 12 to 24
SEA (Google Ads) delivers plannable clicks at a unit price from day 1 – in B2B often €3 to €15 per click. SEO costs work upfront and needs 6 to 12 months, after which clicks come without unit costs. Depending on the click price, break-even is usually between month 12 and 24. I offer both – hence the calculation here instead of the usual channel sermon.
Why this comparison usually goes wrong
SEO agencies make SEA look bad, ads agencies make SEO look bad. For a sense of scale: across 13,474 US search campaigns, the average Google Ads cost per click from April 2025 to March 2026 was 5.42 US dollars, from 1.63 US dollars for entertainment to 9.87 US dollars for legal services (WordStream/LocaliQ Google Ads Benchmarks 2026) – depending on what’s being sold. I offer both channels, SEO support and Google Ads.
“I earn from both – SEO support and Google Ads – so I have no interest in skewing this comparison.”
— Viktor Pásztor, SEO and Google Ads freelancer
The honest answer starts with a question: over what timeframe are you calculating? Over 3 months, SEA always wins. Over 36 months, almost always SEO – if the conditions are right.
The break-even calculation, laid open
Take a realistic B2B example: target keywords with a combined potential of 2,000 clicks per month, click price €6.
SEA: 2,000 clicks × €6 = €12,000/month media budget, plus management. From day 1, precisely scalable, ends with the budget.
SEO: Support from €1,000/month with me. Result: little in the first months, from month 6 to 12 a growing organic share. If the site reaches even a quarter of the click potential (500 clicks/month), it arithmetically replaces €3,000 of media budget – three times the support costs. At half: six times.
The break-even – the point where cumulative SEO costs fall below cumulative ads costs for the same clicks – depends almost entirely on the click price: at €1 clicks it takes long or never pays off; at €5 it’s typically in the second year; at €10+ often already in the first. Rule of thumb: the more expensive your clicks, the faster SEO pays off. The assumptions are deliberately conservative – recalculate with your real click prices, they’re in your Google Ads account.
| Criterion | SEO | SEA (Google Ads) |
|---|---|---|
| Cost | support from €1,000/month | in the example 2,000 clicks × €6 = €12,000/month media budget |
| Time to effect | 6 to 12 months until a growing organic share | from day 1 |
| Sustainability | the stock remains, even when paused | ends with the budget |
| Controllability | no guaranteed result | can be switched on and off instantly |
| Typical break-even vs. ads costs | month 12 to 24, depending on click price | – |
Break-even calculation based on the example in this section: 2,000 clicks/month potential, €6 click price, SEO support from €1,000/month. The actual break-even depends on the respective click price.
What the calculation doesn’t show
Three factors shift the picture, in both directions. For SEA: perfect controllability (on today, off tomorrow), visibility for keywords you’ll never rank for, and data from day 1. For SEO: organic results appear more credible to many users than ads, the content additionally pays into AI visibility, and the stock remains when you pause. Against SEO: the result can’t be guaranteed – anyone promising you fixed click numbers is calculating dishonestly.
The hybrid strategy: ads as a data source for SEO
The smartest use is not either-or. This is how I combine both channels in client projects:
- Ads first on the purchase keywords: 4 to 8 weeks of campaigning deliver real conversion data per keyword – before a single SEO text is written.
- SEO on the winners: The keywords that demonstrably bring inquiries in ads get pages and content. No 12-month bet on assumptions.
- Scale ads back step by step where organic rankings take over – the freed-up budget moves to keywords that are organically out of reach.
This way SEA finances the learning phase and SEO permanently lowers unit costs. The channel comparison with social and email is its own topic – this was only about the calculation between the two search channels.
Pricing
SEO support
from €1,000/month, ongoing optimisation and content.
Google Ads management
€100/hour based on effort, plus the media budget that goes directly to Google.
Details and pricing logic for both models: SEO pricing.
Common mistakes in the SEO vs. SEA comparison
Comparing on a monthly view
That way SEA always wins – and you pay rent forever.
Starting SEO without knowing the click prices
Your ads account reveals what every organic click is worth.
Switching off ads completely once SEO is running
For unreachable keywords, SEA remains the only access.
Buying brand keywords at a premium
Even though you’ve long been organically in position 1 – worth checking, but no automatism: competitors sometimes bid on your name.
Frequently asked questions about SEO and SEA
What is the difference between SEO and SEA?
Both are search engine marketing: SEO earns visibility through content and technology (organic results), SEA buys it per click (ads). Together they form SEM.
What does a click cost on Google Ads?
Depending on the industry, from under €1 (B2C, broad terms) to over €15 (B2B, legal, finance). Your real values are in the Keyword Planner or, after 4 weeks of campaigning, in your account.
Can SEO completely replace Google Ads?
Rarely sensible. For purchase-intent keywords with unreachable organic competition and for quick tests, SEA remains the right tool.
Do Google Ads influence my organic rankings?
No – Google strictly separates the two systems. But ads deliver data that makes your SEO strategy measurably better.
Viktor Pásztor
Viktor Pásztor is an SEO freelancer in Berlin, has been in digital marketing for over 15 years and manages around 15 client projects in parallel, mostly e-commerce and B2B. He has been working 100 % remotely for more than five years – with WordPress, Shopify, Shopware and TYPO3. More about Viktor Pásztor
Keep reading
Keyword research
How search data becomes a topic list.
SEO support
What ongoing SEO collaboration covers.
SEO pricing
What working with me costs – SEO and Google Ads compared.
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