The classic cost structure, honestly stated
Agency retainers commonly run from around one thousand a month for local basics to five figures monthly for competitive national programs, quoted after discovery and varying enormously with scope and market. Freelancers and consultants bill hourly or by project, typically cheaper but capacity-bound. In-house costs a salary plus tools and content budget, and usually wins past a certain scale. Tool stacks, rank tracking, crawling, keyword research, add a low three figure monthly baseline for most teams.
What you are actually paying for at any tier is the loop: research, content, technical upkeep and measurement. Any quote should itemize those; the diligence questions are in do I need an SEO agency.
The new line item: the answer layer
In 2026 a complete program also measures and wins AI answers: presence across ChatGPT, Gemini, Claude and Perplexity, source fixes, and answer content. Monitoring tools for this run from $29 to $499+ per month, per our sourced pricing comparison. Aethon publishes its full-loop pricing, measurement, executed fixes and attribution, at $199, $399 and $799 per month, which usefully benchmarks any agency quoting AI visibility as a premium add-on.
The scoping question that saves money: how much of your classic budget is producing informational rankings whose clicks AI Overviews now absorb? That spend is the natural funding source for the answer layer, no new budget required.
Matching spend to stage
Early stage: skip retainers, spend on foundations, one strong page per money question, free tools, a platform subscription for the answer layer, and founder-written expertise no agency can fake. Growth: an agency or dedicated hire for the classic loop, a platform for the answer loop, one shared pipeline report. Enterprise: your existing program continues, plus per-assistant answer measurement across markets. Whatever the stage, price from evidence: a free AI visibility audit shows what the answer layer is worth in your category before you fund it, and how to do SEO in 2026 covers what the money should buy.
