You must charge for SEO services according to your expertise and experience. If you are a pro at your service and can provide top-notch results, you deserve to be paid more. You must charge extra if a project requires immense effort and time. Large SEO companies charge as per month, and monthly services include a specific set of services. Suppose you are working as an individual and providing services as a Keyword researcher, SEO content writer, technical auditor, or technical consultation. In that case, your price will vary according to the position, time, and experience. Ideally, even the cheapest SEO should not cost less than $500. High-end SEO agenies charge up to one million dollars each month to serve the clients with best SEO practices.