Outsourced IT vs In-House IT: Which Is Better for SMEs?

The In-House IT Cost Reality

Many businesses assume that hiring an internal IT person is cheaper than paying an MSP. When they calculate only the salary, this can appear true. But the true cost of an in-house IT hire is substantially higher than the headline salary figure.

A mid-level IT support engineer in the UK currently earns £35,000–£45,000 per year in most regions, rising to £45,000–£55,000 in London and the South East. On top of salary, the employer cost includes:

• National Insurance contributions: approximately 13.8% of salary above £9,100 — adding £3,500–£5,500 per year
• Employer pension contributions: typically 3–5% — adding £1,050–£2,750 per year
• Annual leave cover: when your sole IT person is on holiday, who provides support?
• Sick leave: illness, absence, and burnout affect individuals more significantly than team-based MSP models
• Training and certification: technology changes rapidly — keeping an individual current requires investment of £1,000–£5,000 per year
• Recruitment costs: replacing a departing IT person typically costs £3,000–£8,000 in agency fees and lost productivity during transition

Total employer cost for a single IT hire is typically £45,000–£70,000 per year once all-in costs are factored in.

What a Single IT Person Cannot Cover

Even a highly capable IT generalist has limits. Modern business IT spans network infrastructure, Windows and Mac endpoint management, Microsoft 365 administration, cloud platforms, cybersecurity (including endpoint detection, email security, firewall management), telephony, backup, and compliance. Expecting one person to be expert in all of these areas is unrealistic.

The gaps that most commonly emerge with a single in-house IT hire include: cybersecurity expertise (a generalist IT person is rarely a security specialist); cloud platform knowledge (Azure, AWS, and Microsoft 365 are deep specialisms); and out-of-hours coverage. A single IT person is unavailable evenings, weekends, and during annual leave — exactly the times when incidents are least convenient.

What Outsourced IT Delivers

A managed IT service provider employs teams of specialists across all the IT domains a business requires. When you engage an MSP, you get access to the collective expertise of the team, not just one individual. A helpdesk engineer handles day-to-day issues; a Microsoft 365 specialist manages the cloud environment; a security analyst monitors for threats; a senior engineer handles complex infrastructure projects.

MSPs also provide coverage that a single hire cannot match. A properly structured managed IT service includes 24/7 monitoring (automated systems alerting the team to problems around the clock) and defined response times for incidents regardless of when they occur. For businesses where IT availability is business-critical, this coverage is essential.

When In-House IT Makes Sense

In-house IT becomes cost-competitive and operationally appropriate as organisations scale. Businesses with 150 or more staff, complex on-premise infrastructure, or highly specific technical requirements may reach a point where a dedicated internal team provides better value than an MSP.

In-house IT also makes sense when the IT role needs deep integration with the business — when the IT function is not just support but part of product development, data infrastructure, or business systems management. For these organisations, an in-house team augmented by specialist MSP services for areas like cybersecurity or cloud management (co-managed IT) is often the optimal model.

Co-Managed IT: The Middle Ground

Co-managed IT is an arrangement where a business has one or more internal IT staff alongside an MSP partner. The internal person handles the day-to-day visible IT presence — being on-site, managing relationships with staff, handling hardware procurement — while the MSP provides the specialist depth, 24/7 monitoring, cybersecurity management, and backup coverage.

This model works particularly well for businesses with 50–150 staff that want internal IT presence but recognise that one person cannot cover all the specialist areas modern IT requires. The MSP acts as the IT team behind the IT team — providing expertise and resource that the internal person draws on without needing to hire multiple specialists.

How AMVIA Can Help

AMVIA provides fully outsourced managed IT and co-managed IT arrangements for UK SMEs. Whether you have existing IT staff who need specialist backup, or you want to outsource your IT function entirely, AMVIA structures the service around your requirements. The starting point is an onboarding assessment that maps your current environment, identifies risks, and establishes the service scope. Contact AMVIA on 0333 733 8050 to discuss which model is right for your business size and requirements.