In-House IT vs Outsourced IT — The Honest Comparison for UK SMEs
IN‑HOUSE VS OUTSOURCED IT
Should you hire IT in‑house or outsource it?
This is one of the most common and expensive operational decisions UK SMEs face. The wrong answer costs money every month and compounds over time.
This page lays out both sides honestly, including the cases where outsourcing is not the right answer.
Honest comparison · Both options weighed · Written for UK SMEs · ISO 27001 certified MSP
The honest summary up front
For most UK SMEs of 10–100 staff, outsourced managed IT is the right answer: broader expertise, stronger security, better resilience and lower total cost. Between 100–250 staff, the answer is usually a hybrid model. Pure in‑house IT becomes genuinely competitive somewhere around 200–300 staff and only when there is a clear operational reason to insource.
The single biggest reason in‑house IT fails in SMEs is not the IT person, it’s the impossible breadth of the role. One person cannot credibly cover helpdesk, infrastructure, security, compliance, strategy and out‑of‑hours response.
That summary covers most businesses. The rest of this page exists for the ones where it doesn’t.
The real cost comparison — done properly
Most cost comparisons fail because they only compare obvious numbers. Here is a realistic comparison for a 30‑person business.
In‑house: the *real* annual cost
- Mid‑level IT generalist salary: £40,000–£55,000
- Employer NI, pension, benefits (~22%): £8,800–£12,100
- Recruitment cost (amortised): £1,500–£3,000
- Training and certifications: £2,000–£4,000
- Tools (RMM, ticketing, monitoring): £3,000–£6,000
- Holiday and sickness cover: £2,000–£5,000
- Specialist work bought in: £5,000–£15,000
Realistic total: £62,000–£100,000 per year
£170–£280 per user per month
Outsourced MSP: the real annual cost
- 30 users × £85/user/month: £30,600
- Microsoft 365 licences (required either way)
- Hardware procurement (required either way)
- Onboarding (year one): £2,000–£4,000
- Typical project work: £2,000–£6,000
- No recruitment, no cover gaps, no tooling overheads
- Security operations and vCIO included
Realistic total: £35,000–£40,000 per year
£95–£110 per user per month
For a 30‑person business the outsourced model is typically around half the total annual cost and materially stronger operationally. The numbers shift as you scale, but under 100 staff the gap is usually large.
Beyond cost — the four factors most comparisons miss
Breadth versus depth
One person can be good at one or two areas. They cannot be excellent at everything simultaneously. MSPs provide breadth with depth.
Holiday, sickness, attrition
One‑person IT teams fail on the days that person is unavailable. MSPs build continuity by design.
Security operations
Modern security requires 24/7 monitoring and response. This is the biggest and most expensive gap in the in‑house model.
Strategic independence
External advisors are often more independent than internal staff when reassessing past decisions.
When in‑house genuinely is the right answer
There are real cases where in‑house or hybrid IT is the right call.
- Larger SMEs (200+ staff) with enough workload for multiple internal roles.
- Highly specialist environments requiring platform‑specific expertise.
- Heavily regulated businesses with embedded compliance functions.
- Growth‑stage tech companies where IT and engineering overlap.
In most cases the correct answer is hybrid: internal capability where it adds value, MSP coverage where scale and resilience matter.
The hybrid model — usually right above 100 staff
Hybrid setups combine internal familiarity with outsourced depth, security operations and out‑of‑hours cover.
Frequently Asked Questions — In‑House vs Outsourced IT
Pure in‑house typically becomes competitive around 200–300 staff. Below 100 staff outsourced is usually cheaper and stronger. Between 100–250 staff, hybrid is often best.
Eventually, yes — but that knowledge disappears when they leave. MSP knowledge persists through documentation and process.
For trivial issues, yes. For serious incidents, MSP SLAs are usually faster and more reliable.
Keep them — and add an MSP for the depth, security and resilience they can’t provide alone.
No. You keep strategic control, documentation, access and ownership. A good MSP makes this explicit.
Yes. We would rather give the right advice than win the wrong client.
Talk it through with us — honestly
If you’re weighing in‑house, hybrid or outsourced IT, we’ll give you an honest assessment and a written summary you can take to your board or finance director.
Or call us directly: 01452 701355
No obligation · Business enquiries only · We respond within one business day.
This page complements our managed IT services, pricing guides and scope documentation. The right IT model compounds value over years — the wrong one compounds pain.