SEO vs PPC: Which Should You Invest In First?
The right answer depends on how fast you need results and how much runway you have. PPC delivers traffic within 2-4 weeks but stops the moment you stop paying. SEO takes 8-12 weeks to show first movement but keeps compounding for years. Most businesses with under 6 months of runway should start with PPC; businesses planning past year one should start SEO in parallel from day one.
The core trade-off
PPC is rented traffic, it disappears when the budget does. SEO is owned traffic, it keeps working after the invoice is paid, but it takes longer to build and can't be turned on overnight for a product launch next week.
- PPC: fast, controllable, scales with budget, stops when spend stops
- SEO: slower to start, compounds over time, survives budget cuts
- Cost per lead on PPC tends to rise with competition; SEO cost per lead tends to fall as rankings mature
A practical way to decide
If you need leads this quarter, run PPC now and start SEO in the background so it's ready to take over cost-efficiently by month 6. If you have 6+ months before you need volume, SEO alone can outperform PPC on cost per lead once rankings mature, typically around month 4-6.
The honest trade-off
PPC is renting attention. SEO is building an asset. Both are useful, and the right mix depends on how much runway you have, how competitive your market is and how quickly you need revenue.
What has changed in 2025 and 2026
AI summaries have altered the maths for both channels. Pew Research found that when Google showed an AI summary, people clicked a traditional result in 8% of visits, against 15% without one (Pew Research Center, July 2025). That hits informational SEO traffic hardest. Commercial and local searches, where people want to compare, buy or book, still send far more clicks, and ads still sit above most of them.
Tracking has also become harder for paid. Apple's App Tracking Transparency changes cost Meta an estimated $10 billion in 2022 (CNBC, Feb 2022), and measurement across all ad platforms is now less precise. Businesses need their own conversion data to judge paid properly.
A simple way to decide
| Your situation | Lean towards | Why |
|---|---|---|
| Under six months of runway | PPC first | You need revenue before SEO can deliver |
| Competitive category, strong margins | Both from day one | Paid funds the wait, SEO lowers costs later |
| Local service business | Google Business Profile and local SEO | Usually the cheapest leads available |
| Informational content business | SEO, carefully | AI summaries are taking some of these clicks |
Run them together and share data. Search terms that convert in paid tell SEO which pages to build first. Pages that rank organically let you cut paid bids on those terms.
What to do this week
Pull your paid search terms report and list the ten terms with the best cost per conversion. Check whether you have a strong organic page for each. If not, those are your first SEO priorities. See performance marketing and SEO.