Per-seat pricing makes comparison look easy and usually is not. Here is a worked model, and the four things that actually change what you pay.

Every provider will quote you a per-seat figure, and the figures will be surprisingly close to each other. That is not because the market is efficient. It is because the number is the easiest thing to benchmark and the hardest thing to compare.
What actually varies is what sits inside the number and what sits outside it. A provider at the low end of the range who excludes licensing, after-hours support and anything described as a project is more expensive than a provider twenty percent higher who includes all three. You will discover this in month seven.
A worked model
Below is a full first-year cost for a professional services firm with 60 people and about 70 devices, split into the lines that actually appear. It is a model, not a quote: the assumptions are printed on the figure and you should substitute your own. The proportions, however, tend to hold.
Two things to notice.
The managed service fee is about forty-five percent of the first-year total. Most buyers spend most of their evaluation effort on that line, which means most of the evaluation effort is going on under half the spend.
The hardware refresh reserve is real money and it is almost always missing from the first budget. Devices do not last forever, and a firm that has not been setting aside a third of its fleet cost each year is not saving money, it is accruing a liability that will arrive all at once.
The four things that move the number
How many devices, not how many people
A firm where everyone has a laptop and a phone costs more to run than a firm of the same size where half the staff share workstations. If you are quoted per seat, ask what happens when a person has three devices. If you are quoted per device, ask whether the count includes servers, and whether a phone counts.
Neither model is dishonest. They just suit different shapes of business, and the mismatch is where the surprise comes from.
What "support" is defined as
The most important sentence in the contract is the one that separates support from projects, because everything on the project side is billed separately.
Ask for three concrete examples. Is onboarding a new starter support or a project? Is moving the office? Is migrating a mailbox? Providers give very different answers to these and all the answers are defensible. What is not defensible is finding out after the fact.
Hours
A nine-to-five contract and a twenty-four hour contract are different products. For a business where nobody works evenings, the cheaper one is correct and the expensive one is waste. For a business with a Saturday operation or a client base in another time zone, the cheap one is a false economy you will test exactly once.
Be specific about what "out of hours" means and what it costs. A per-incident out-of-hours charge is usually better value than a blanket twenty-four hour contract if you genuinely need it twice a year.
Whether security is in or on top
This is the biggest single swing, and the hardest to see on a quote. Endpoint detection, email filtering, security awareness training, vulnerability scanning, log retention: each of these is a real cost with a real licence behind it, and each can sit inside the per-seat fee or outside it.
A quote that includes them will look expensive next to one that does not. Ask every provider to list what security tooling is included at the quoted price, by name. The difference between two quotes frequently evaporates when you do this, and occasionally it inverts.
The four pricing models, and what each one incentivises
The one worth saying out loud is the last. Under break-fix or block hours, the provider's revenue goes up when things go wrong. Nobody sets out to exploit that, and most break-fix providers are perfectly honest. But it does mean nobody is paid to spend a quiet Tuesday making next month quieter, and over a few years that absence compounds.
The argument for per-seat pricing is not that it is cheaper. It is that it aligns the incentive: a provider on a fixed monthly fee makes more money when your estate is boring.
What should be included, and usually is not
Four things that are worth insisting on, and which you will not get unless you ask.
Documentation that belongs to you. Network diagrams, asset list, admin accounts, licence inventory, runbooks. Stored somewhere you can reach without asking. The question to ask is: if we part company on bad terms, what do we have? If the answer is a handover meeting, that is not an answer.
A named engineer who knows your environment. Not a dedicated person, which is expensive and usually a fiction, but a named primary who has been onsite and has an opinion about your setup.
A quarterly review that is not a sales meeting. Thirty to sixty minutes on what happened, what is coming, and what the money is doing.
Administrative access, held by you. You should own the tenant and the top-level admin credentials, with the provider holding their own delegated accounts. This is not distrust, it is basic continuity, and a provider who resists it is telling you something.
How to compare quotes without a spreadsheet war
Normalise on total first-year cost including licences, including the onboarding fee, including an honest estimate of the projects already on your list, and divide by headcount. That single number is comparable. Per-seat fees are not.
Then ask every shortlisted provider the same three questions and compare the answers rather than the numbers:
What is specifically excluded from the monthly fee? When did you last lose a client, and why? What would you change in our environment in the first ninety days?
The third question is the useful one. A provider who has done the discovery will have specifics. A provider who has not will talk about best practices.
A sanity range
With all the caveats above: small and mid-sized businesses in the US buying a genuinely comprehensive managed service, including security tooling but excluding Microsoft licensing and hardware, generally land somewhere between $100 and $200 per user per month in 2026. Below that, something meaningful is excluded. Above it, you are buying either a specialism, a compliance regime, or out-of-hours cover, and you should be able to name which.
Use the range to detect outliers, not to negotiate. The provider at $85 is not a bargain, and the one at $240 is not necessarily overcharging. In both cases the next question is the same: what is in it?


