
Any business investment must be justified, and IT services are no different. But for SMEs in the UK, how does one go about calculating the ROI of a co-managed IT model? It’s tempting to compare a monthly managed IT service fee to the salary of an in-house IT employee, but this is a superficial and, ultimately, false calculation.
Calculating the real ROI from a co-managed IT partnership requires a more holistic view of the business and how the partnership supports and enhances its aims. This means a single number that’s the sum of direct savings, risk reduction, strategic opportunities and productivity improvements.
In this guide, we go into detail on how to calculate the ROI of a co-managed IT partnership, and show you how this strategic decision can become a powerful driver of security, productivity and growth for your business.
What is Co-Managed IT?
Co-managed IT is a service model in which your internal IT resources and an external Managed Service Provider (MSP) team work together to support your technology infrastructure. This doesn’t mean replacing your current team with Microbyte’s experts. It means elevating their ability to service your environment by providing Microbyte’s specialised skill set, tools, and scalable resources to support them. We augment what you have, rather than just replace it, creating a partnership that takes advantage of both your team’s knowledge and an MSP’s technical skill.
It differs from other models:
- Fully Outsourced IT: The MSP handles everything. There’s sometimes no IT staff at the customer. (E.g., all IT is outsourced.)
- In-House IT: An internal staff of one or more focuses on IT. (Possible issues: limited bandwidth, specialised skills, and enterprise-class solutions.)
Co-managed IT provides the best of both worlds for expanding companies that need to increase their IT skills without having to pay for the full expense of hiring additional specialists.
The Framework for Calculating True ROI
A credible ROI analysis requires assessing all gains relative to the cost. The standard formula provides the foundation:
ROI (%) is calculated by dividing the cost of investment by the net financial gain. × 100%
- Cost of Investment: This is the predictable monthly or annual fee for the co-managed IT service.
- Net Financial Gain: This is the total value generated from the partnership, combining tangible financial benefits and monetised strategic advantages.
Ready to see how the numbers work for your business?
Try our free ROI Calculator or book a Free IT Audit to get a personalised assessment.
A Worked ROI Example: A UK Professional Services Firm
To make this tangible, let’s model a 50-employee UK firm.
| Calculation Component | Description | Annual Value |
| Annual Investment | Cost of Microbyte’s Co-Managed Service | (£60,000) |
| Tangible Gains | ||
| Downtime Reduction | 10 hours of avoided downtime at £3k/hour | £30,000 |
| Avoided Specialist Hire | True cost of hiring an in-house security expert | £85,000 |
| Strategic Gains | ||
| Productivity Gain | 50 employees save 1 hr/month | £18,000 |
| Reduced Staff Turnover | Avoided cost of replacing two employees | £40,000 |
| Total Annual Gain | £173,000 | |
| Net Gain | Total Gain – Investment | £113,000 |
| Final ROI Percentage | (Net Gain / Investment) x 100 | 188% |

Calculating Tangible Financial Benefits (The Hard Numbers)
These are the hard savings and costs avoided that have an immediate effect on your bottom line.
Reduced Downtime
Downtime is more than an inconvenience: it is a direct loss of revenue. Per a recent 2024 Gartner report, downtime can cost a business in excess of £4,400 per minute. Microbyte’s preventative 24/7 monitoring and maintenance efforts greatly reduce your chances of such an outage.
To understand the full impact, it’s important to be aware of the hidden cost of poor IT Support.
Optimised Staffing Costs
The total cost of on-premise specialist staff extends far beyond the salary. Once you factor in National Insurance, pension, recruitment fees and training, the real cost of a mid-level IT specialist could be in excess of £85,000 per year. With a co-managed model, you get access to an entire team of certified experts for a tiny fraction of the price. This helps you establish whether working with a Managed IT Provider (MSP) is a cost-effective option.
Avoided Risk Costs from Enhanced Cybersecurity
The financial cost of a data breach can be catastrophic. NCSC, the UK’s National Cyber Security Centre, found the average cost of a breach for a small business was between £6,500 and £11,500, with more severe incidents running into millions. Microbyte’s superior security directly mitigates this financial risk. Our Cyber Security for Small Business services protect you against the threats described here.
Valuing Strategic & Intangible Benefits (The Soft ROI)
Even though they are indirect, these “soft” benefits have a significant financial impact. Linking them to quantifiable commercial results is crucial.
Enhanced Productivity and Strategic Focus
Your internal IT team can focus on high-value projects when they don’t have to deal with the same helpdesk tickets over and over.
- How to Quantify: Productivity Gain = (Hours Saved per Employee per Week × 52 Weeks) × Number of Employees × Average Hourly Wage
Improved Business Agility and Scalability
An agile and streamlined IT system enables your business to seize new avenues for growth. With the support of Microbyte, you will be assisted with major undertakings such as Cloud Migrations, all the while ensuring that the normal flow of your operations remains uninterrupted.
- Time-to-Market Gain can be calculated as follows: (Additional Monthly Revenue from Early Launch) x (Months Launched Sooner)
Boosted Employee Morale and Retention
A smooth IT experience lowers turnover and increases job satisfaction.
- How to Quantify: Turnover Savings = (Cost to Replace Employee) × (Number of Retained Employees). This is one of the key Benefits of Outsourcing IT Support.
Compliance and UK Regulatory Alignment
Compliance is a legal requirement in the UK for businesses. Microbyte’s expert knowledge and understanding of UK compliance is a strong ROI element to partnering with a co-managed service, eliminating the risk of penalties due to non-compliance.
- Key Regulations: There are several mandatory regulations, such as GDPR and Cyber Essentials. These often have international equivalents. ISO 27001 is an Information Security standard, and PCI DSS deals with payment data.
- Sector-Specific Rules: Depending on your business, many more rules might apply. In Healthcare (NHS), there is the DSP Toolkit and other regulations from The Care Quality Commission. In financial services, the Financial Conduct Authority (FCA) has various regulatory guidelines that must be followed. At Microbyte, we make sure your IT environment meets the standards to ensure your business isn’t subject to fines or enforcement actions from the ICO or other regulatory organisations.
How Microbyte Delivers Measurable ROI
At Microbyte, we don’t just fix problems; we prevent them. Our approach is built to deliver a clear and demonstrable return when you invest in business IT.
A Transparent Pricing Advantage
Budgeting for IT doesn’t have to be complicated. Microbyte’s pay-as-you-grow, per-user, per-month pricing structure is predictable, which means no unexpected charges and only pay for the IT services you need to support your business.
The Four Blocks of Managed Services
Our “Stamp Out Support” philosophy is delivered through our Four Blocks of Managed Services:
- Centralisation: We standardise your IT environment for consistency and control.
- 24/7 Support & Helpdesk: We provide round-the-clock support to keep your team productive.
- NetAdmin: Our network administrators align your IT with best practices to ensure stability.
- Virtual IT Director (vITD): We provide strategic, director-level guidance, developing an IT Roadmap that aligns technology with your business goals.
From Cost Centre to Growth Engine
The real ROI in co-managed IT services goes beyond cost savings to help your business strategically grow. A comprehensive analysis will show how it creates value by mitigating risk, accelerating innovation and improving service delivery. A co-managed partnership repositions your IT function from a cost centre to a proactive enabler of your business strategy – driving return.
Ready to calculate the true ROI for your business? Contact Microbyte today for a free consultation. Let’s assess your potential savings and performance gains.





