SEO is not a single, standardized product, a $300 a month package and a $10,000 a month retainer are often different amounts of work, not the same service at different prices. Common models include monthly retainers, typically $500 to $10,000 plus depending on scope, project-based pricing for a defined scope like an audit, and hourly consulting for smaller, targeted engagements.
What drives the price is industry competitiveness, ranking a local bakery takes far less effort than a SaaS company in a term a hundred funded competitors are also chasing, along with site size, content quality needed, and how much technical debt already exists to clean up. For a local or small business in a moderately competitive market, a realistic monthly range tends to fall somewhere between $750 and $3,000.
A few red flags are worth watching for, guaranteed rankings are a warning sign since no legitimate provider controls Google's algorithm, prices that seem too low to be real often rely on tactics that can actively damage a site, and a provider that cannot clearly show measurable progress makes it hard to know whether the spend is producing anything at all.
It's also worth separating one-time costs from ongoing ones: a technical audit or a site migration is usually a fixed project cost, while ranking and maintaining visibility in a competitive market requires continuous work, content, link building, monitoring, that doesn't stop once early goals are hit. Businesses that budget for SEO as a one-time expense rather than an ongoing investment are often surprised when rankings quietly slip a few months after work stops.
Getting a clear, itemized breakdown of what's included in a quoted price, content, technical work, link building, reporting, before signing anything helps avoid the vague packages that are hardest to evaluate. Asking directly what happens to rankings if the engagement ends is a fair, revealing question any legitimate provider should be able to answer honestly.
Geography affects pricing more than most people expect: an agency based in a major metro area with higher overhead typically charges more than a comparable-quality provider in a smaller market, and remote-first agencies increasingly compete on quality instead of location-based pricing, which has meaningfully widened the range of legitimate options available at any given budget level.
In-house SEO versus agency versus freelancer changes the cost structure entirely, not just the number. A full-time in-house hire carries salary, benefits, and tooling costs that only make sense once SEO work has grown enough to justify dedicated headcount; a freelancer or small agency is usually the more cost-effective starting point for a business still figuring out how much ongoing investment the channel actually deserves.