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No agency can quote you a monthly fee without seeing your site, but the structure underneath that price is something you can judge.
"Roughly what does SEO cost per month?" It is often the first question in an intake, and the honest answer is unsatisfying: nobody knows before they have seen your site. Yet everywhere you ask, you get a number. So if you want to know what outsourcing SEO costs, do not go looking for a price. Go looking for the structure underneath it.
That sounds like stalling, but it is the difference between an investment and a subscription you cannot trace back after a year. Below is where the price comes from, which models you will run into, and where money leaks away without you noticing.
Why nobody can quote you a number straight away
SEO is not a product with a unit price. It is work on an existing situation, and that situation determines almost everything.
Two webshops that look identical from the outside can differ tenfold in workload. One has a clean URL structure and a handful of competitors. The other has three years of duplicate product pages, a migration that was never finished, and ten parties bidding on the same search terms.
An agency that quotes a monthly fee without looking is effectively guessing. Sometimes the guess works out. More often you pay for a standard package that does not match what is actually holding your site back.
SEO outsourcing costs: the four price drivers
Four things explain most of the difference in price.
The state of your website. If search engines cannot read your pages properly, writing and link building will not do much. Technical SEO is therefore often the first item on the budget, and the largest one on an old or heavily rebuilt site.
How tough the competition is. In a niche with five players you reach the click zone faster than on a term national brands have worked on for years. The same ambition simply costs more months in the second case.
How much content is needed, and who writes it. Text written by someone who does not know your field is cheap and delivers little. Text that actually holds up costs time, including your own time for input and review.
Who is at the controls. A junior working through a checklist is cheaper per hour than someone with ten years of experience. The difference is not in the hours but in the choices: what do you tackle first, and what do you deliberately leave alone.
The three pricing models you will encounter
Fixed monthly fee. The most common model. Comfortably predictable, but only meaningful if it states which hours you are buying and where they go. Without that breakdown you are paying for presence.
Hourly rate or a block of hours. Transparent and flexible, good if you already know what needs to happen. Less suitable if you expect someone to think along about direction, because that happens between the assignments.
A project with a clear beginning and end. An audit, a migration, or rebuilding your structure, for example. Well defined and easy to assess. But one off: the maintenance afterwards is a separate decision.
Which model fits depends mostly on how much you want to and can do yourself. Anyone considering SEO outsourcing because nobody internally has the time needs something different from a company that already has a marketer in house who only lacks direction.
Look at the contract length as well, because that determines your risk more than the monthly fee does. SEO needs time, so a contract of a few months makes little sense for either side. Being locked in for twelve months with no moment to adjust is the other extreme. A term with an evaluation after the first quarter keeps the pressure where it belongs: on the work, not on your notice period.
Where money leaks away without you noticing
The biggest waste is rarely in the rate. It is in work that changes nothing.
Reporting is the clearest example. A monthly report with rising impressions reads well, but impressions are not visitors. If a page sits at position fifteen, a fraction of searchers click. In the top five that rises to a multiple of it. Everything in between is visibility without traffic.
That is exactly why "we are now found on more keywords" is a misleading signal. More terms on page two deliver nothing. A few terms moving from page two into the top five change your month.
Watch out for work that stands apart from everything else, too. A link building package alongside a site that is technically broken is money in a bucket with a hole in it. At TNG, SEO hangs off paid media for the same reason: the same search terms, the same landing pages, the same data on what people do next. Buy those channels separately and you pay twice for the same insight.
What you can judge before you sign
You do not need to be a specialist to weigh up a proposal. Four questions are enough.
Ask what the first three months go into. A good answer is concrete and about your site, not about an approach in general.
Ask which pages are the target and why those. If the answer is a list of keywords with no pages behind them, nobody has thought yet about where the traffic should land.
Ask how reporting works, and agree on what you steer by. Positions on your most important pages and the clicks that come out of them mean something. A total number of impressions does not.
Ask who does the work. Not out of distrust, but because you want to know whether the person you are speaking to is also the person making the calls later on.
Finally
An honest price for SEO does exist, but only after someone has looked at your site. What you can judge beforehand is whether an SEO agency explains where the money goes and what it will be measured against.
If you are sitting with a proposal that lists a monthly fee and a set of activities, but no target pages and no measurement point, hold it against these four questions. If little remains, you know enough. And if you would rather talk it through before signing anything, that works too.
