Should I invest in SEO or Google Ads first?

The two channels behave differently:

• Google Ads: fast to start, easy to pause, precisely targeted, and you pay for every click. Results stop when spending stops.
• SEO: slower to build, with no cost per click, and gains that tend to persist after the work is done, although they need maintenance.
• Neither changes the other's rankings. Google states that advertising with Google won't have any effect on your site's presence in its search results.

They do help each other in practical ways. The search terms report in Google Ads shows which keywords convert, which tells you where to focus content. Landing pages improved for conversion help both channels. And appearing in both paid and organic results for important terms can increase the total clicks you win.

A simple way to decide is to work out the most you can pay to win a customer. The Google Ads Budget & Break-even CPC Calculator shows whether paid search is profitable at your conversion rate and margins, and the SEO ROI Calculator shows how long an SEO investment takes to pay back. If ads are profitable, run them while SEO builds.