Managed IT vs Internal IT for Professional Services Firms

At some point, every growing professional services firm faces the same question: do we hire an internal IT person, or do we use a managed IT provider?

Both options have genuine advantages. The right answer depends on your firm’s size, growth trajectory, risk profile, and what you actually need from IT. This article gives you an honest comparison.

What “Internal IT” Actually Means at Different Firm Sizes

For most professional services firms under 75 staff, “internal IT” typically means one of three things:

• A single IT generalist (often a helpdesk or desktop support person)
• A senior staff member who handles IT as a secondary responsibility
• A combination of both, with a more senior IT person hired as the firm scales

A single internal IT person provides direct availability and institutional knowledge of your environment. However, they also create single points of failure — when they leave, take leave, or don’t know how to handle something, the gap is immediately obvious.

What a Managed IT Provider Actually Delivers

A managed IT provider (MSP) typically provides:

• A team of engineers — not a single person — covering helpdesk, network, security, and cloud
• Proactive monitoring of your systems, not just reactive support when things break
• Access to specialists (security engineers, Microsoft 365 architects, network engineers) that you would not get with a single internal hire
• Documented processes and runbooks for your environment
• A defined SLA for response times

The trade-off is that an MSP is external — they are not in your office every day, and you share their attention with other clients.

Cost Comparison (Honest Figures)

A mid-level IT support person in Melbourne in 2025 typically costs between $65,000 and $90,000 per year in salary — plus superannuation, recruitment costs, leave entitlements, and equipment. A senior IT person or IT manager costs more.

A managed IT arrangement for a 20-40 person professional services firm typically costs between $3,000 and $6,000 per month, depending on scope — which is $36,000 to $72,000 annually.

At first glance, the costs may appear comparable. The difference is what you get for the money: with an MSP, you get a team with specialist skills and defined processes; with an internal hire, you get one person with a specific skill set.

When Internal IT Makes More Sense

• Your firm is above 75-100 staff and needs someone on-site daily
• You have highly specialised, bespoke systems that require dedicated institutional knowledge
• You have regulatory requirements that mandate an internal IT function
• You already have a managed IT provider and need a senior internal IT manager to interface with them

When a Managed IT Provider Makes More Sense

• Your firm has between 10 and 75 staff and uses mainstream tools (Microsoft 365, standard networking equipment)
• You need specialist skills — security, Microsoft 365, cloud — that a single hire cannot cover
• You want predictable monthly costs with a defined service level
• You need coverage during holidays, staff leave, and after hours
• You are growing and need IT support that scales without re-hiring

The Hybrid Model

Many professional services firms above 50 staff operate a hybrid model: a managed IT provider handles helpdesk, monitoring, security, and infrastructure, while an internal IT coordinator or office manager handles day-to-day requests and vendor liaison. This combines the specialist depth of an MSP with the on-site presence of an internal person.

Questions to Ask Before You Decide

• What is your single biggest IT frustration right now — and would an internal hire or an MSP solve it better?
• What happens to IT support when your internal person is on leave or leaves the firm?
• What specialist skills does your firm need — and can a single hire realistically cover them?
• What is your growth trajectory over the next two years, and how does that affect your IT support needs?

If you’re a Melbourne professional services firm weighing up this decision, SouthCore is happy to talk through what a managed IT arrangement would look like for your specific situation — including an honest conversation about whether we’re the right fit.

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