Short answer
PPC buys clicks now and stops when you stop paying; SEO takes months but keeps bringing visits without paying per click. Use PPC when you need enquiries quickly or want to test which searches convert. Use SEO when there's steady search demand and you can wait. Most businesses with the budget do both.
SEO vs PPC usually gets framed as a choice between two channels. In practice it’s a question about time and cash flow: PPC (pay-per-click ads) buys traffic today at a price per visit, and SEO builds traffic that arrives later without a price per visit.
This guide compares SEO and PPC on cost, speed, and pros and cons, with 2026 cost-per-click benchmarks, a calculator for your own numbers, and a plain answer on which to pay for first and when to use SEO and PPC together.
What’s the difference between SEO and PPC?
The difference between SEO and PPC is how you pay for search traffic. PPC places paid ads above or below the organic results, and you pay each time someone clicks. SEO improves your pages so they rank in the unpaid (organic) results, where clicks are free but rankings take months to earn.
Both show up on the same results page for the same search. The difference is what you’re paying for:
- PPC (pay-per-click): you bid on searches in Google Ads (or Microsoft Ads) and pay when someone clicks. Google’s definition: “Cost-per-click (CPC) bidding means that you pay for each click on your ads.”
- SEO (search engine optimisation): you pay for the work (technical fixes, content, page improvements) that earns organic rankings. There’s no charge per click.
The two don’t cross over. Google states that “advertising with Google won’t have any effect on your site’s presence in our search results”, so running ads doesn’t lift organic rankings, and ranking organically doesn’t lower ad prices.
SEO vs PPC: which is better?
Neither SEO nor PPC is better in general. PPC is better for speed, testing and short campaigns, because traffic starts as soon as ads are approved. SEO is better value over time for steady demand, because a ranking page keeps bringing visits without a cost per click. The right choice depends on how soon you need results.
In short: PPC rents visibility; SEO builds it. Renting is right when you need it now, building is right when you need it for years.
The row I think matters most is the third. PPC traffic is only there while you pay. Organic rankings can slip if competitors improve and you do nothing, but they don’t vanish the day an invoice goes unpaid.
How much does PPC cost compared with SEO?
PPC costs a price per click: the 2026 all-industry average for search ads was $5.42 per click and $66.69 per lead, per LocaliQ and WordStream. SEO costs a monthly fee or project price regardless of clicks, so it gets cheaper per visit the more traffic it brings in.
For what SEO itself costs, see SEO prices and what each level buys.
LocaliQ and WordStream 2026 search advertising benchmarks, from customer campaigns on Google Ads and Microsoft Ads.
Those are averages across thousands of campaigns in LocaliQ’s 2026 search advertising benchmarks, and the spread between industries is wide:
Average cost per click, search ads, 2026
Legal, home improvement and dental clicks cost around four times as much as travel
The comparison I’d look at is cost per visit. PPC’s cost per visit is fixed at whatever the click costs.
SEO’s cost per visit is the monthly cost divided by the organic visits it brings in, so it starts high (months of work, few visits) and falls as pages rank. Try your own numbers:
Free tool · SEO vs PPC cost calculator
What would the same traffic cost as ads?
Use your own cost per click if you have one. Any currency works, as long as you use the same one throughout.
Buying that traffic with PPC
The starting cost per click is the 2026 all-industry search average from LocaliQ and WordStream. Your own varies a lot by industry and keyword, so check it in Google Ads' Keyword Planner.
At the average $5.42 click, SEO costing 1,000 a month becomes cheaper per visit once it brings in about 185 organic visits a month. In an industry where clicks cost $9.87, that point arrives at about 102 visits.
Whether SEO gets there, and how quickly, depends on search demand and competition; the guide to whether SEO is worth it covers how to check.
What are the pros and cons of SEO vs PPC?
PPC’s pros are speed, control and fast testing; its cons are ongoing cost per click and traffic that stops when spending stops. SEO’s pros are no cost per click and traffic that builds over time; its cons are slow results, no guarantees and less control over what ranks.
| Pros | Cons | |
|---|---|---|
| PPC | Traffic within days. Pick exact searches, locations and times. Test offers and landing pages quickly. Budget is predictable. | Every click costs money. Traffic stops when spending stops. Costs rise in competitive industries. Needs ongoing management. |
| SEO | No cost per click. Traffic builds over time. Ranks for many related searches at once. Pages keep working after the work on them is done. | Takes months. No guaranteed rankings. Google decides what ranks. Harder to attribute results month to month. |
The cons of each are the other’s pros, which is why I don’t think the answer for most businesses is one or the other. How long the SEO side takes is covered in how long SEO takes to work, with real client timelines.
When should you use PPC instead of SEO?
Use PPC instead of SEO when you need enquiries within weeks, are launching a new site or service, sell something seasonal, or want to test which searches convert before investing in SEO pages. PPC is also a way to appear on searches where large sites dominate the organic results.
| Situation | Start with | Why |
|---|---|---|
| New business or new website | PPC, with SEO alongside | A new site has no rankings; ads bring enquiries while SEO builds |
| Need enquiries this month | PPC | SEO won’t produce results in weeks |
| Seasonal offer or one-off event | PPC | Rankings won’t arrive in time for a short window |
| Steady year-round demand, can wait | SEO | Cost per visit falls as rankings build |
| Informational searches (“how to”, “what is”) | SEO | A page can answer these for free on every visit, instead of paying for each click |
| High cost per click in your industry | SEO, with small PPC tests | Each organic visit saves the price of a click |
Should you use SEO and PPC together?
Yes, if the budget allows. Using SEO and PPC together lets PPC bring enquiries while SEO builds, and lets PPC data show which searches convert so SEO targets the right ones. Once a page ranks well organically, you can test reducing ad spend on that search and see whether total enquiries hold.
SEO and PPC work together in four practical ways:
- PPC first, SEO alongside. Ads cover the months before organic rankings arrive.
- PPC data picks the SEO keywords. Search terms that convert in ads are the ones worth writing pages for.
- SEO covers the long tail. Hundreds of specific searches that are too small to manage in ads can each bring a few organic visits.
- Test your overlap. Where you rank first organically, pause ads on that search for a few weeks and compare total clicks and enquiries. Keep whichever setup brings more for less.
SEO vs SEM: what’s the difference?
SEM (search engine marketing) is the umbrella term for marketing in search engines. It usually means paid search ads, and some people use it to cover both SEO and PPC. SEO is the organic part; PPC is the paid part. In practice, “SEO vs SEM” is usually the same question as SEO vs PPC.
If an agency offers “SEM”, I’d ask whether that means paid ads only or ads plus SEO. The pricing and what you get are very different.
Which should you pay for first?
If you need enquiries this month, I’d start with a small PPC campaign on your best-converting searches and track every enquiry. If you have steady demand and can wait a few months, start with SEO.
If the budget covers both, run PPC now and use what it teaches you to decide which SEO pages to build.
If you want the SEO side done, that’s a monthly SEO retainer, or send me a message and I’ll tell you which searches look worth building for.
Common questions
Does paying for Google Ads help SEO?
No. Google says advertising with Google "won't have any effect on your site's presence in our search results", and that it never accepts money to include or rank sites in organic results. Ads can help SEO indirectly, by showing which searches turn into customers, but they don't lift your organic rankings.
Is PPC better than SEO for a small business?
PPC is usually better for a small business that needs enquiries this month, is testing a new service, or sells something seasonal. SEO is usually better value for a business with steady local demand that can wait a few months. With a tight budget, a common approach is a small PPC campaign on their best-converting searches with SEO built alongside it.
How much should I spend on Google Ads?
Start from what a customer is worth. If a new customer brings £500 profit and about 1 in 10 enquiries become customers, you can afford up to £50 per enquiry and still break even. LocaliQ's 2026 benchmark puts the all-industry average cost per lead at $66.69, so check your own industry's figure before setting a budget.
Can I run PPC myself?
Yes. The risk is spending on broad or irrelevant searches. Start with a small budget, exact and phrase match keywords, negative keywords for searches you don't want, and conversion tracking set up before you spend anything.
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