The decision between building an in-house IT team and outsourcing to a managed provider usually gets reduced to a single comparison: salary versus retainer fee. That comparison is incomplete, and it's often the reason organizations underestimate what in-house IT actually costs.
What in-house IT costs beyond salary
A loaded employee cost includes salary, payroll tax, benefits, and typically an additional percentage on top for overhead — office space, equipment, and management time. Beyond headcount cost, in-house teams also require tooling licenses, training and certification budgets, and on-call coverage that a single hire or even a small team struggles to provide without burnout or coverage gaps.
For organizations needing broad coverage — network, security, helpdesk, infrastructure — replicating that breadth in-house typically means multiple specialized hires, not one generalist, since few individuals are deep in all of those areas simultaneously.
Where managed IT retainer costs sit
A managed IT retainer is typically priced per-user or per-device, scaling more predictably with organizational size than a fixed headcount does. The retainer model also bundles access to a broader bench of specialists than most organizations could justify hiring directly, since that expertise is shared across the provider's client base rather than dedicated to one company.
Where the math favors each model
- In-house tends to win when an organization has highly specific, proprietary systems requiring deep institutional knowledge that's impractical to transfer externally, or when headcount is large enough to justify a full internal team with built-in redundancy.
- Outsourced tends to win for small-to-mid-sized organizations where a single in-house hire would represent a single point of failure, or where the breadth of needed expertise (security, network, helpdesk, infrastructure) would otherwise require multiple specialized hires.
The honest framing
Neither model is universally cheaper. The right comparison weighs total loaded cost (not just salary) against retainer cost (inclusive of what's actually covered), and weighs coverage breadth and redundancy against the value of deep, dedicated institutional knowledge.