In-House IT vs an MSP: A Cost and Coverage Comparison

For a business with fewer than a couple of hundred employees, a managed service provider usually delivers more coverage for the money than a single in-house IT hire, and the reason is arithmetic rather than salesmanship. One person works one shift, takes vacations, gets sick, and eventually leaves; a business network runs all week and gets attacked at night. An in-house hire wins on physical presence and on knowledge of your specific business, which is why the best answer for many companies between fifty and a few hundred people is co-managed IT: keep the person, add the provider. This comparison sets the two models (and the hybrid) side by side on coverage hours, skills breadth, vacation and turnover risk, and the shape of the cost, without pretending to know your numbers.

What does each model cover?

An in-house IT person is an employee. They set up laptops, fix printers, answer questions at desks, manage the Microsoft 365 tenant, call the internet provider, and keep the server room running. Good ones also plan: replacement cycles, upgrades, security improvements. In practice, the day-to-day interruptions win, and planning happens when it can.

A managed service provider is a company with a team and a toolset that supports many clients under a monthly agreement. The core of the service is monitoring and maintenance you never see: patches applied, backups verified, endpoint protection watched, alerts triaged. On top of that sits a help desk with defined response times, project work such as migrations, and periodic planning. Our article on what an MSP is covers the model in detail, and our guide to choosing one covers the questions that separate providers.

Co-managed IT is the blend: an internal person or small team handles what benefits from being in the building, and the provider handles monitoring, security, backup, escalations and the projects your person does not have time or depth for. We wrote about when co-managed IT makes sense separately.

How do coverage hours compare?

A full-time employee covers roughly forty hours of a week that has one hundred and sixty-eight. Servers, firewalls and Microsoft 365 tenants do not keep those hours, and neither do attackers, who prefer nights, weekends and holidays precisely because nobody is watching. Our piece on why attacks cluster around holidays explains the pattern. An in-house person can be on call, but on-call for one person with no rotation means burnout or a phone that eventually goes unanswered.

A provider separates the two kinds of coverage. Monitoring runs around the clock through tooling and a team that rotates, so a backup failure at 2 a.m. or an endpoint alert on a Sunday is seen and acted on. The help desk runs on published hours, often extended, with an emergency path after them. The agreement should state both in writing: hours, response targets by severity, and what happens outside them. Our SLA and response-time FAQ explains what to demand.

How does skills breadth compare?

List what a small business network involves: Windows and Mac devices, Microsoft 365 administration, identity and multi-factor authentication, endpoint security, firewalls and Wi-Fi, a phone system, backups and disaster recovery, cloud servers, compliance paperwork for insurers or regulators, and line-of-business applications with their own vendors. No single person is expert in all of that. A good in-house generalist is competent across most of it and learns the rest as needed, which is fine until the thing they are learning is an active ransomware incident.

A provider's team divides those areas among people who work in them every day. The engineer who designs your network segmentation has done it for other clients; the one who handles your Microsoft 365 security has seen the phishing techniques of the month across dozens of tenants. Breadth also shows up in projects. An office move, a server migration to Azure or a phone system replacement is a once-in-five-years event for your in-house person and a routine one for a provider.

What happens with vacation, sick days and turnover?

This is the risk owners underestimate until it happens. When the one IT person takes two weeks off, nobody patches, nobody checks the backups, and the new hire waits for a laptop. When they are out sick during an outage, the owner is on the phone with the internet provider. When they resign, the passwords, the vendor relationships, the reasons behind every configuration decision, and the undocumented workarounds leave with them, and the replacement spends months reconstructing it. Recruiting a replacement takes time, and the candidates who are good enough have options.

A provider absorbs all of this by design. The team covers absences, documentation is part of the service rather than a favor, and turnover on the provider's side is invisible to you because the environment is documented to a standard. The honest counterpoint is that a provider can also turn over the engineer who knows you best, and the fix for that is in the agreement: a named account manager, a documented environment you can inspect, and month-to-month terms so you can leave if the service slips. Our guide to signs it is time to switch providers covers what slipping looks like.

How do the cost shapes compare?

We will not put dollar figures here, because they vary by region, headcount and what you count. The shapes are what matter. An in-house hire is a fixed cost: salary, payroll taxes, benefits, training and certifications, plus the tooling they need (monitoring, patching, endpoint security, backup, a ticketing system) bought and maintained separately. The cost is the same in a quiet month and in a crisis, and it does not shrink if you lay off a third of the staff.

A managed agreement is a flat monthly fee, usually per user or per device, that includes the tooling and scales up and down with headcount. Some providers carve out security, backup or after-hours work as add-ons; ours includes cybersecurity, privileged access and identity management, and disaster recovery planning in one all-inclusive agreement, so the fee is the fee. Our article on managed IT pricing models explains how per-user pricing is built and what pushes it up or down, and our pricing and scope page explains what is inside ours.

Co-managed IT is a salary plus a smaller flat fee, because the provider is covering monitoring, security, backup and escalation rather than every desk-side request. For a company that has an IT person it values, this is often the best value of the three: the person is freed from the 2 a.m. alerts and the projects beyond their depth, and the business gets the coverage a single hire cannot provide.

Which model fits which business?

Under about fifty people with ordinary needs, a full managed agreement is usually right; a full-time IT salary is hard to justify and the person would be underused. Between fifty and a few hundred, the question is whether you need someone in the building every day. Manufacturing floors, medical practices with clinical equipment, and offices with heavy desk-side demand often do, and co-managed IT is the fit. Above that, or in businesses where technology is the product, in-house teams grow, and providers shift to specialized roles: security monitoring, cloud, compliance. Break/fix, meaning calling someone when things break, is the model to avoid at any size, for reasons we laid out in break/fix vs managed IT.

Frequently asked questions

Is an MSP cheaper than hiring in-house IT?

For most small businesses, yes, once you count the whole cost: salary, benefits, training, the tools the person needs, and the coverage gaps during vacations and turnover. A managed agreement bundles tooling and team coverage into a flat monthly fee that scales with headcount. The comparison tightens for larger companies with heavy on-site demand, which is where co-managed IT, combining your staff with a provider, usually costs less than either extreme.

How many employees do you need before hiring in-house IT?

There is no fixed number. The trigger is daily on-site demand that remote support cannot meet: a production floor, clinical devices, or a building full of people who need hands-on help. Many companies of one to two hundred people never hire in-house and are well served by a provider with scheduled on-site visits; others hire at eighty because of their work. Decide by the work, and remember one hire still leaves nights, weekends and absences uncovered.

Can we keep our IT person and still use an MSP?

Yes. That is co-managed IT. Your employee keeps the desk-side work, local knowledge and vendor relationships; the provider adds monitoring, security, backup verification, after-hours escalation and project depth. The arrangement works when roles are written down, your person has access to the provider's tools and documentation, and both sides treat it as one team rather than a competition.

What should a managed IT agreement include?

Written response times by severity, the hours the help desk covers and what happens outside them, exactly which tools and services are included versus billed extra, who owns the documentation and the administrator credentials, on-site visit terms, and the exit terms. Prefer month-to-month agreements over multi-year contracts; a provider confident in its service does not need to lock you in.

If you are weighing a hire against a provider, or your IT person is drowning, our managed IT services and co-managed IT agreements are month-to-month, all-inclusive, and come with a dedicated account manager who gives you a real cell number, with on-site coverage across the New York metro area, New Jersey, Connecticut and the other regions we serve. Request a free assessment and we will tell you which model fits, even if the answer is to keep what you have.