How much does SEO cost per month, and how to tell what you are buying

SEO is sold in four ways, and the monthly figure you are quoted depends entirely on which one you are buying: a monthly retainer, which is the most common and buys a set amount of senior time plus production; a fixed price project, such as a technical audit or a migration; hourly consulting; and per deliverable pricing, such as a price per page or per link. A monthly quote is therefore not a price for SEO. It is a price for a specific quantity of hours and deliverables, and two quotes at the same number can differ by a factor of several in what actually gets done. The way to compare them is to convert each one into hours of senior time, pages produced, developer specification written and links earned, then measure all of it against what a customer is worth to you.

This page explains the models, what belongs in a retainer, and how to size your own budget. For the one off project work that often sits alongside a retainer, scope and price that separately.

The four pricing models

Model	Suits	Watch for
Monthly retainer	Ongoing programmes where content, technical work and link acquisition all continue	Scope written as activities rather than quantities
Fixed price project	Audits, migrations, international rollouts, a one off content build	Whether implementation is included or only recommendations
Hourly or day rate	Advisory alongside an in house team, second opinions, training	Good value when you have delivery capacity, expensive when you do not
Per deliverable	Content at volume, specific link targets	Quality control, and who owns strategy if nobody is paid to think

A fifth arrangement, payment on results, exists and deserves care. Google's own guidance on choosing an agency names the promise of a particular ranking position as a warning sign, since no one can guarantee a position in an auction they do not control. Performance arrangements that pay on revenue or qualified leads, with agreed attribution, are a different and more reasonable proposition.

What a monthly retainer should contain

Ask for the scope in quantities, with a named person against each. A complete retainer has seven lines:

• Senior strategy time, as hours per month, from a named person. This is the line that decides whether anything else works.
• Technical work, as issues diagnosed and specified, with tickets written to a standard your developers accept. State whether implementation is included.
• Content, as a number of briefs and a number of published pages at a stated length, with who writes and who edits.
• On page optimisation, as a number of existing pages improved per month.
• Link acquisition or digital public relations, as campaigns run and the method used. Anything that sounds like a link catalogue should be declined.
• Measurement, as the report, its contents, its cadence and who presents it.
• Access and governance, as a weekly or fortnightly call, a shared backlog, and a named escalation route.

Three things commonly sit outside a retainer and should be priced openly: tool licences, content production at volume, and developer time. Find out which of the three you are expected to fund before you sign.

What actually drives the number up or down

• Competition in your category. Queries where one customer is worth a lot attract better funded competitors, and matching them takes more work.
• The state of your site. A clean platform with a content team needs advice. A ten year old site with duplicate templates and no editorial resource needs rebuilding.
• Markets and languages. Each additional market multiplies the content and technical work.
• Who does the implementing. Agencies that ship changes themselves cost more per month and move faster. Advisory only costs less and depends on your internal capacity.
• Seniority and location of the team. Rates differ widely by market. What matters is how many hours of senior judgement you get, not the headline rate.
• Content volume. Usually the largest single variable in a retainer.

Work out your own budget from your own numbers

This takes ten minutes and replaces any benchmark figure you could be given.

1. Value of a customer. Average order or contract value multiplied by gross margin, multiplied by expected repeat purchases.
2. Allowable cost per acquisition. The share of that value you are willing to spend to win a customer.
3. Customers you want from organic search per month, twelve months out.
4. Multiply two and three. That is the monthly amount organic acquisition can justify at your target volume.
5. Compare with paid search. Take what you currently pay per acquisition through ads. Organic work that eventually brings the same customers for less is worth funding, and the comparison gives you the number to put in front of a finance director.

If the figure that comes out is small, that is useful information rather than a dead end. A small budget spent on the long tail, local visibility and fixing what already ranks produces real results. A small budget spread across national head terms produces nothing.

How to compare two quotes properly

Put both on one page with these rows: senior hours per month and whose, pages published per month and at what length, existing pages improved, technical tickets written and whether implemented, link or public relations campaigns and the method, tools included, reporting and who presents it, notice period, and who owns the content and accounts if you leave. Then ask each bidder the same three questions.

• What are the first three things you would do and why, based on what you have seen of our site
• Which of your current clients most resembles us, and what did the first six months look like
• What do you need from us, specifically, for this to work

The third question separates the field faster than any other. Agencies that have delivered results know exactly what they need from a client and will tell you plainly.

how much does SEO cost per month: what readers write in to ask

Is a monthly retainer better than a project fee?

Retainers suit work that compounds, since content, links and technical health all improve month on month. Projects suit a defined piece of work with a clear end, such as a migration or an audit. A common and sensible arrangement is a project to fix the foundations, then a retainer to build on them.

How long should I commit for?

Organic search work shows meaningful movement over months rather than weeks, so a very short commitment rarely demonstrates anything. Six months with a review at three is a fair structure, with a notice period you could actually use and your accounts, content and documentation remaining yours.

Why do quotes for the same work differ so much?

Because they are not the same work. One may be two senior hours and an automated report, another may be a specialist embedded with your developers plus four published pages a month. Convert both to hours and deliverables and the difference usually explains itself.

Can I do SEO myself instead?

Yes, and many small businesses should start there. The highest value work needs no agency: fix your Google Business Profile, write a proper page for each service and location you genuinely serve, answer the questions customers ask you on the phone, and get your titles and internal links right. Bring in help when the constraint becomes time or technical depth.

What should a monthly SEO report contain?

The commercial number first, meaning organic revenue or qualified leads. Then non brand organic sessions, visibility on your agreed query set, pages published and improved, technical issues opened and closed, links earned, and the three priorities for next month. Same shape every month so you can see change.

Does a bigger budget produce faster results?

More budget buys more parallel work, which does shorten the path when the work is correctly prioritised. It does not compress the time search engines take to crawl, assess and re rank pages. Spend on the right things first and the timeline looks after itself.

A deliverable that fits in a scope of work

Every retainer above is priced against a results page with ten links on it. Buyers also put the same question to an assistant, which replies with one written recommendation naming two or three companies. That reply is not a position, so a rank report has no row for it.

If you are paying monthly, ask for the reply to be captured on the same dates each month, with the sources it cited. It costs little to add, and it turns a vague promise into a dated record the quote can point to. AI Knows Us records those answers for a given question, which gives the line item something to stand on.