Two agencies will quote you $900 and $6,000 for something both call SEO, and neither is necessarily wrong. They are selling different products under the same word, and nobody tells you that before the discovery call. This guide covers what an SEO agency genuinely delivers, honest 2026 pricing with the figures published rather than hidden, why AI has quietly changed what your money buys, and the questions that expose a weak proposal in ten minutes. We run an agency ourselves, so treat that as disclosure rather than a credential.
What an SEO Agency Actually Does
Six workstreams. A proposal covering fewer than four is a single service, not a programme.
1. Technical SEO. Crawlability, indexation, site speed and Core Web Vitals, site architecture, and structured data. This comes first because content published onto a broken foundation produces nothing.
2. Keyword and intent research. Not a list of high-volume terms. A map of which searches indicate someone is ready to buy, which indicate early research, and which are not worth pursuing at your current authority.
3. On-page and content work. Optimising pages that already exist and producing new ones. Most sites have more opportunity in the first than the second, and most agencies sell the second harder.
4. Authority building. Digital PR, editorial link acquisition, and brand mentions. In competitive markets this is usually what separates page one from page three.
5. Local SEO, where relevant. Google Business Profile, citations, and review generation for businesses with a location or service area.
6. Measurement and reporting. Which is where good and bad agencies separate most visibly, covered further down.
A seventh has appeared in the last eighteen months, and it is significant enough to warrant its own section below.
How Much an SEO Agency Costs in 2026
Honest ranges, drawn from published survey data rather than a sales page.
| Business type | Monthly retainer | What it covers |
| Entry level, single location | $1,500 to $2,500 | Local optimisation, basic technical, light content |
| Small business, comprehensive | $2,500 to $5,000 | Full technical, regular content, link building |
| Mid-market | $5,000 to $10,000 | Multi-service programme with strategy |
| Enterprise | $10,000 to $50,000+ | Multi-market, complex architecture, dedicated team |
Benchmarks worth knowing. An Ahrefs poll of 439 SEO professionals put the average agency retainer at $3,209 monthly, with the most common band between $501 and $2,000. Other 2026 analysis places the median across all business sizes near $3,500. The US SEO services market itself is worth roughly $82 billion.
Other pricing models. Standalone audits from reputable agencies run $5,000 to $10,000, priced separately from any retainer. Consultants charge $75 to $300 hourly, with senior technical specialists in competitive verticals at $200 to $400 and above. Retainers including content production run $3,000 to $15,000 monthly for four to twelve pieces, depending on subject depth.
Below $1,000 monthly. This is where churn-and-burn operators sit: low-quality offshore content and automated link building that can trigger penalties. The maths is simple. That budget cannot fund senior time, so something is being cut, and it is usually the part that would have worked.
Expect a six-month runway before meaningful traction, regardless of what you pay.
Why AI Changed SEO Agency Pricing, and What to Ask Because of It
This is the most useful thing on this page if you already have an agency.
AI tools have reduced the cost of routine SEO work by roughly 20 to 30 percent. Content briefs, technical audits, keyword research, and reporting that consumed 15 to 20 hours monthly can now be done in 5 to 8. Retainer ranges have compressed slightly against 2024 because of it.
What that means for you. If your retainer has not moved and the deliverables have not expanded, your agency is now spending materially fewer hours on the same fee. That is not automatically wrong, since the savings may be funding strategic work instead. But it is a fair question, and one worth asking directly.
The question to ask. “Which parts of our retainer are now AI-assisted, and what have you reallocated those hours to?” A good agency answers specifically: fewer hours on reporting, more on digital PR or commercial page work. A defensive answer tells you the savings went to margin.
What has not got cheaper. Strategy, creative work, relationship-driven link acquisition, and anything requiring genuine subject expertise. These remain labour-intensive and command premium pricing, which is exactly why a proposal weighted toward them costs more and is usually worth more.
Why Two SEO Quotes Differ by Six Times
Because scope, not the label, drives price. Comparing quotes without comparing scope is the most common and most expensive buying mistake in this category.
A $900 retainer typically covers a few blog posts, rank tracking, and a monthly report. Real work, narrow scope.
A $6,000 retainer typically covers technical remediation, commercial page optimisation, content with subject expertise behind it, digital PR, and reporting tied to revenue.
Both are legitimately called SEO. They are different products, and the cheaper one is only bad value if you needed the other one.
How to compare properly. Ask every agency for the same three things: a list of deliverables with quantities, the named people who will work on your account with their approximate hours, and what is explicitly excluded. Then compare. Most of the apparent price gap disappears once you can see what sits inside each number.
One thing to check that almost nobody does. Ask how many accounts the senior strategist on your account also manages. Someone running 30 accounts is an account manager stretched thin, not a strategist, whatever the title on the proposal says.
The New Line Item: AI Visibility
Worth understanding before your next proposal, because it changes what you are buying.
Clients in 2018 were buying keyword rankings. Clients in 2026 are increasingly buying certainty that their brand appears wherever a customer asks a question, which now includes AI Overviews, ChatGPT, and Perplexity alongside traditional results.
That is a genuinely broader brief. It spans technical SEO, content strategy, answer engine and generative engine optimisation, Core Web Vitals, and monthly tracking of brand citations across AI platforms. Different skills, different tools, different measurements.
What it costs. Agencies offering this as a distinct tier are pricing from around $7,500 monthly, scaling with the number of AI platforms tracked and competitive complexity.
Whether you need it yet. If your buyers research software, services, or products by asking an assistant, yes. If your customers find you through local search and Maps, the traditional work matters far more and this can wait. Do not let it be sold as mandatory when it is not, and do not accept an agency that has not noticed it exists.
How to Choose an SEO Agency
Seven questions. The answers separate practitioners from packagers.
- “What would you fix first on our site, and why?” They should have looked before the call and have something specific and slightly uncomfortable to say. Generalities mean they did not prepare.
- “Who works on our account day to day, and how many other accounts do they handle?” The second half of that question is the revealing one.
- “Which parts of the work are AI-assisted?” You want an honest answer, not a defensive one. AI in briefs and audits is normal. AI writing published unedited is not.
- “Show me results in a business like ours.” Not their best case study. One from your vertical, with the pages still live so you can check them.
- “How do you measure success if rankings were off the table?” Separates agencies driving business outcomes from those reporting activity.
- “What would make you tell us not to hire you?” An agency that can name the client profile it is wrong for is advising. One that cannot is selling.
- “Who owns the content, analytics, and accounts if we leave?” The only correct answer is you.
Two things to be sceptical of. Guaranteed rankings, since nobody controls the algorithm and Google states plainly that no one can guarantee a number one position. And performance-based deals, which are rare in 2026 for good reason: they either target keywords too narrow to matter or rely on tactics that create risk later.
If you want a side-by-side view of how two agencies stack up on scope and approach, our comparison of Interamplify versus Leemjaz shows the level of detail worth demanding from anyone you shortlist.
What Your SEO Agency Should Be Measuring
Five metrics, in this order.
- Leads, calls, or revenue from organic search. The headline. Everything else is a leading indicator.
- Rankings on commercial-intent terms, rather than total keyword count. Twenty keywords that indicate buying intent beat two hundred that do not.
- Non-branded organic traffic, separated from branded so growth in one does not mask stagnation in the other.
- Indexation health, meaning valid pages indexed and thin pages excluded.
- AI citation presence, where relevant to your market.
If the monthly report leads with total traffic or keyword count, ask for it restructured. What gets reported is what gets worked on.
How Leemjaz Works as an SEO Agency
Since this guide tells you to interrogate agencies, here is how we answer our own questions.
We audit before we quote. Every prospective client receives a review of their current organic performance before we propose anything, and we share it whether or not they hire us. If the audit shows the constraint is the offer, the website, or the hosting rather than search visibility, we say so. Selling a retainer to fix a conversion problem wastes everyone’s money.
We fix the foundation first. Technical remediation and existing-page optimisation come before new content, because publishing onto a site with indexation problems and a four-second load time burns the content budget. This work also moves faster, since you are correcting problems rather than building from zero.
We are direct about AI in our process. It handles research, briefs, and first drafts. It does not write anything published under a client’s name without a subject expert editing it, because unedited output reads as generic to buyers and Google’s systems alike. Our full search engine optimisation services page sets out how the workstreams fit together.
We report outcomes. Leads, conversions, and commercial rankings, with commentary explaining what changed and why. Traffic appears because clients want to see it, not because it is what they are buying.
We say no. Where the budget cannot reach the target, where the timeline is unrealistic, or where a vertical is too contested for the resources available. For B2B software specifically, the work looks different enough that we treat it as its own discipline, covered in our approach to SaaS SEO.
You own everything. Content, analytics properties, and accounts sit under your ownership from day one, and we work without long-term lock-in.
SEO Agency FAQs
How much should I pay an SEO agency per month?
Entry-level local campaigns run $1,500 to $2,500, comprehensive small business SEO $2,500 to $5,000, mid-market $5,000 to $10,000, and enterprise $10,000 and above. Survey data puts the average agency retainer near $3,200 to $3,500. We scope against your site’s actual condition and competitive market rather than quoting a package tier, and we tell you upfront if the budget cannot reach the target you have in mind.
How long does it take an SEO agency to get results?
Plan for a six-month runway before meaningful traction, though technical fixes and existing-page improvements can move rankings within four to six weeks because you are correcting problems rather than building from nothing. We front-load that work deliberately, so clients see movement in the first two months while the content and authority work compounds behind it.
Is it worth hiring an SEO agency or should I do it myself?
The foundational work is genuinely doable in-house: Search Console, on-page improvements, Google Business Profile, and useful content. What is harder is technical diagnosis, judging competitive difficulty, and earning links. We often set clients up to handle routine work themselves and take on only the parts needing specialist judgment, which usually costs less than a full retainer and is a fairer arrangement.
What is the difference between a cheap and expensive SEO agency?
Scope and seniority. A $900 retainer typically buys blog posts and rank tracking, while $6,000 buys technical remediation, commercial page work, digital PR, and revenue-linked reporting. Below $1,000 monthly, providers frequently rely on low-quality content and automated links that risk penalties. Our proposals list deliverables with quantities and name who works on the account, so you can compare scope rather than headline price.
Should my SEO agency be working on AI search visibility?
If your buyers research by asking ChatGPT, Perplexity, or reading AI Overviews, yes. If they find you through local search and Maps, traditional work matters far more and this can wait. We assess whether AI visibility is relevant to your specific market before including it, because it is being sold as mandatory to plenty of businesses who do not need it yet.
How do I know if my current SEO agency is working?
Look at leads and revenue from organic search rather than traffic, check rankings on commercial-intent terms rather than total keyword count, and ask what they would fix next and why. If reporting has narrowed to whichever numbers look best, that is the signal. We are happy to review another agency’s work and tell you honestly what we would question, whether or not you switch.
Conclusion
Choosing an SEO agency is less about finding the best one and more about matching scope to what your business actually needs. The $900 quote and the $6,000 quote are both real products, and the mistake is comparing the numbers without comparing what sits inside them. Ask what they would fix first, ask how many accounts your strategist carries, and ask what they have done with the hours AI gave them back. Three questions, ten minutes, and you will know considerably more than a discovery call will tell you.
