SEO or Google Ads: Which to Choose and When to Combine Both
Data: our own Google Ads campaign (Sep 26 to Oct 11, 2026), Keyword Planner via DataForSEO (Nov 4, 2026), Google results for 30 keywords (Nov 4, 2026).
Short answer
Google Ads delivers clicks from day one, but only as long as you pay: our campaign cost an average of PLN 7.92 per click (Sep 26 to Oct 11, 2026). SEO usually shows first changes after 4–8 weeks, but the traffic does not vanish when you stop the budget. For a small service business, a mix usually pays off: Ads to start, SEO for a steady flow of inquiries.
SEO vs Google Ads: How They Differ
SEO is work on a website, its content and its links so that Google shows it high in the free results. You do not pay for the click on such a result. Google Ads is an auction: you pay for every click on an ad, and the ad disappears when the budget runs out.
We disclose our interest: we do SEO and we do not run Google Ads campaigns for clients. Our Ads data comes from promoting our own website, so we describe it from an advertiser's perspective, not an ad seller's.
SEO, SEM and PPC: a glossary
- SEO (search engine optimization): work on free search results.
- SEM (search engine marketing): everything you do in search, that is, SEO and paid ads together.
- PPC (pay per click): a payment model in which you are charged per click, the way Google Ads bills, among others.
"SEO or SEM" is therefore not a choice between two services but between a part and the whole. When people ask about "SEO vs SEM", they usually mean a choice between SEO and ads.
SEO vs Google Ads on 9 Criteria
| Criterion | SEO | Google Ads |
|---|---|---|
| What you pay for | The work: technical fixes, content, links, business profile; clicks from organic results are free | Every click (auction) and, optionally, campaign management |
| First results | Usually first visibility changes after 4–8 weeks | From the moment the ad runs, once approved |
| After you switch off the budget | Rankings fade gradually; content and links stay | Clicks from ads disappear immediately |
| Cost per click | PLN 0 for the click itself | PLN 7.92 on average for us (Sep 26 to Oct 11, 2026, bid cap PLN 18); Keyword Planner for SEO industry keywords: approx. PLN 37–81 |
| Control | Google decides the order | You choose keywords, budget, hours and location |
| Keyword reach | One page can collect traffic from many variants of a question | Every click costs, the budget sets the reach |
| Measurement | Search Console and GA4 | Google Ads account and GA4 |
| Risk | Time, algorithm updates | Rising bids, dependence on budget |
| AI answers | Content can be cited in AI Overviews and ChatGPT | Ads do not improve organic results or citations |
Sources: our own Google Ads campaign (Sep 26 to Oct 11, 2026), Google Ads Keyword Planner via DataForSEO (Nov 4, 2026), converted at the NBP average exchange rate of PLN 3.9097 (table 215/A/NBP/2026).
The most important difference is not the price of a click but what remains once the spending stops. With ads, you pay for access to customers for as long as the campaign runs. With SEO, you pay for work whose result, meaning content, links and visibility, stays with your company.
How Much a Google Ads Click Costs: Data from Our Campaign
We promoted our website in Google Ads for keywords related to SEO services. From September 26 to October 11, 2026, the campaign collected 213 clicks for PLN 1,687.82, an average of PLN 7.92 per click, using the maximize clicks strategy with a bid cap of PLN 18. Keyword Planner shows much higher average bids for keywords in our industry: approx. PLN 37 for "pozycjonowanie stron cennik" (website SEO pricing), PLN 50 for "agencja seo" (SEO agency) and PLN 81 for "pozycjonowanie za efekt" (pay-for-results SEO), at the NBP rate of November 4, 2026. These are Polish-language keywords on Google.pl.
| Keyword | Average cost per click |
|---|---|
| pozycjonowanie stron cennik | approx. PLN 37 |
| agencja seo | approx. PLN 50 |
| pozycjonowanie za efekt | approx. PLN 81 |
Source: Google Ads Keyword Planner via DataForSEO (Poland, Nov 4, 2026); bids converted to zloty at the NBP average rate of PLN 3.9097 (table 215/A/NBP/2026 of Nov 4, 2026).
The price of a click comes from the auction: Google takes the bid and the ad quality into account, so the same keyword can cost different advertisers different amounts. On top of click costs comes campaign management if you hand it to an agency: in our sample of 17 agencies, management fees started at PLN 600 per month or came to 14–20% of the budget (as of October 25, 2026).
The cost of SEO, in turn, depends on the billing model, which we describe in the comparison pay for results or monthly retainer.
Time to the First Inquiries
A Google Ads ad can start running right after approval, and Google reviews most ads within one business day. The first clicks therefore usually arrive in the first days of the campaign, provided the budget and bids let the ad win auctions.
With SEO, we usually see the first visibility changes after 4–8 weeks, once Google recrawls the fixes and new content. The target for agreed local keywords is the top 3 in 2–3 months, and for a new domain with no history it takes longer.
What Remains After You Switch Off the Budget
Clicks from ads end on the day the campaign stops running. Neither rankings nor content remain: you pay for access to customers, not for the growth of your website.
After SEO, what remains is what was built during the work: a fixed website, content, links and a maintained Google Business Profile. Without further work, rankings may weaken over time because competitors do not stand still, but they do not vanish overnight.
AI Overviews and Ads in Google Results in 2026
On November 4, 2026, we checked 30 SEO industry keywords in Google (Poland, desktop, DataForSEO data). An AI Overview appeared for all 30, and ads for only 4. In our industry, a free result therefore competes with an AI answer more often than with an ad.
An ad does not improve your position in free results or your chances of being cited in an AI Overview. Presence in AI answers is built with content and mentions of your company, which we describe in the comparison SEO and GEO.
When to Choose Google Ads, When SEO and When to Combine
| Situation | Choose | Why |
|---|---|---|
| A new business that needs inquiries this month | Google Ads + an SEO start | Ads bring traffic right away, SEO builds a steady channel |
| A seasonal service (e.g. air conditioning in summer) | Ads in season, SEO 2–3 months before the season | You can switch ads on and off, but content needs time to get indexed |
| A local service on a limited budget | Local SEO and a Google Business Profile | Clicks from Maps and organic results are free |
| Testing a new service or price | Google Ads | After 2–4 weeks you know which keywords bring inquiries |
| High bids in your industry (law, medicine, finance) | SEO + a small Ads budget for the highest-converting keywords | Every click is expensive, organic traffic lowers the average cost per inquiry |
If you operate locally in Warsaw, see how we do local SEO. Before starting a campaign or SEO, it is also worth checking your site: a SEO audit in 3–5 days will show what blocks its visibility.
How to Calculate a Starting Budget
Three simple calculations are enough for both channels:
- number of clicks = budget / average cost per click;
- number of inquiries = clicks × the share of visits that end in a form or a phone call;
- cost per inquiry = budget / number of inquiries.
Example: the price of our SEO Standard package, PLN 1,900, spent entirely on ads at an average cost of PLN 7.92 buys about 240 clicks a month. How many of them turn into inquiries depends on your website and offer. You can read that share in GA4 only when the form, phone calls and email are tracked as events, so set up tracking before the campaign starts. Without it, you cannot calculate the cost per inquiry in either Ads or SEO.
You can check the other side of the equation, that is, how much SEO costs, in our pricing.