SEO retainers usually cap your margins at 30% because you’re just selling...

https://www.4shared.com/office/hhMWgw-2jq/pdf-69706-48553.html

SEO retainers usually cap your margins at 30% because you’re just selling hours. If you start treating your agency like a lab to build your own internal tools, you can flip that model and get your margins north of 70%.