Should Your Small Business Use Linux? An Honest Guide

For most small businesses the answer is yes for some machines and no for most desks. Linux is a strong choice for servers, single-purpose computers, developer workstations, and older hardware that cannot run Windows 11. It is a poor choice for any desk that depends on Windows-only business software or the desktop versions of Microsoft 365 apps. The license is free. The real cost is the time and skill needed to set it up and keep it updated.

What Linux is, in plain terms

Linux is an operating system, the same kind of software as Windows or macOS. It comes in versions called distributions, each packaged and maintained by a different organization. Ubuntu, Debian, Red Hat Enterprise Linux, Rocky Linux, and Linux Mint are the names a small business is most likely to meet.

Most distributions cost nothing to download and use. Some publishers sell optional subscriptions that add longer security coverage or technical support.

You may already own Linux without knowing it. Many network storage boxes, routers, and camera recorders run a version of it internally.

Where does Linux fit in a small business?

Servers and background systems

This is the strongest case. A Linux server can host a website, a database, an internal web application, file shares, or backup software, with no per-server operating system license and no per-user access licenses. Most cloud hosting is built around it, so if your business rents a virtual server, Linux is the default option.

If you are still deciding whether you need a server at all, read our comparison of an on-site server versus the cloud first. Many small offices no longer need one.

Single-purpose machines

A lobby display, a check-in kiosk, a warehouse lookup screen, or a PC whose only job is to open one web application does not need Windows. Linux runs a browser well, can be locked down to a single task, and has no license to track.

Developers and technical staff

Software developers often prefer Linux because it matches the servers their code runs on. If a technical employee asks for it and their tools support it, that is a reasonable request.

Extending the life of older hardware

Windows 10 support ended on October 14, 2025, and many older PCs cannot run Windows 11. A supported Linux release keeps such a PC receiving security updates, which suits browser-based work: web email, a cloud accounting system, a booking site. It does not make a slow PC fast, and it will not run your Windows programs.

Where does Linux not fit?

Windows-only line-of-business software. Most practice management, tax, accounting, dental imaging, legal, and design programs are published for Windows, and some for macOS. Check the vendor’s system requirements page. If Linux is not listed, the vendor will not support you on it, and that settles the question for that desk. Compatibility tools that run Windows programs on Linux exist, but a business should not depend on a setup its software vendor will not help with.

Microsoft 365 desktop apps. Microsoft publishes desktop Outlook, Word, Excel, and PowerPoint for Windows and macOS, not Linux. On Linux you use the web versions in a browser. Those handle everyday documents, but they lack some features of the desktop apps, such as Excel macros and some advanced Outlook functions. If your staff live in desktop Excel or Outlook, keep them on Windows or Mac. Our Microsoft 365 versus Google Workspace comparison covers the browser-first alternative.

Printers, scanners, and specialty devices. Common office printers generally work. Multifunction scanners, label printers, signature pads, and card readers vary by model. Confirm the manufacturer offers a Linux driver before committing.

Staff familiarity. People know Windows or macOS. Retraining costs hours, and every question afterward goes to whoever supports the office. Saving a license fee rarely covers that for a general-purpose desk.

Finding help. Fewer people know how to support a Linux desktop than a Windows one. If whoever set it up is unavailable, that matters.

Which distribution, and how long is it supported?

For a business, the most important property of a distribution is how long it receives security updates. Pick a long-term release and write its end date in your records. These lifecycles were checked against each publisher’s own pages in September 2026.

Distribution	Best suited to	Free security updates	Paid options
Ubuntu LTS	Servers and desktops	5 years per LTS release. Ubuntu 24.04 LTS runs to May 2029, and 26.04 LTS to May 2031	Ubuntu Pro extends security coverage to as much as 15 years
Debian	Servers	About 5 years in total, including the Debian LTS period. Debian 13 runs to June 30, 2030	None from Debian. The LTS work is done by volunteers and sponsoring companies
Red Hat Enterprise Linux	Servers that run software certified for it	Requires a subscription	10 years: 5 of full support, then 5 of maintenance support
Rocky Linux	Servers needing Red Hat compatibility at no cost	About 10 years. Rocky Linux 9 runs to May 31, 2032, and Rocky Linux 10 to May 31, 2035	Support is available from third-party companies
Linux Mint	Desktops for people used to Windows	Linux Mint 22.x is supported until April 2029	None

Notes on choosing:

• Use LTS releases only. Ubuntu also publishes interim releases every six months with a short support window. Those are for enthusiasts and testing, not an office.
• Ubuntu Pro pricing. Canonical lists Ubuntu Pro as free for personal use on up to five machines. For business use, list prices as of September 2026 start at $25 per workstation per year and $500 per server per year without technical support, with higher tiers that include support.
• Match the vendor. If a server application is certified for one distribution, use that one, even if you would otherwise choose another.
• Upgrades are a project. Moving from one LTS release to the next is like a Windows version upgrade. Plan it, back up first, and do not leave it until the final month.

What does Linux really cost?

The license is free, and that is a real saving on a server. The ongoing costs are the same as for any computer:

• Setup time. Installing, securing, and documenting the system.
• Updates. Linux needs patching like anything else. Ubuntu can install security updates automatically, but someone should still confirm it is happening and schedule restarts. See our patch management guide.
• Backups. A Linux server holding business data needs the same tested backup as a Windows one. Our backup guide covers what that means.
• Security. Linux is not immune to attack. Servers exposed to the internet are probed constantly regardless of operating system. Strong sign-in controls and a properly configured firewall still apply.
• Knowledge. Someone has to know how it works, and it must be written down so a second person could take over.

How to decide, machine by machine

Ask these questions for each computer rather than for the whole office.

1. What software must this machine run? If any of it is Windows-only or Mac-only, stop here. Use that platform.
2. Does the user need desktop Outlook or Excel? If yes, stay on Windows or Mac.
3. What is plugged into it? Confirm Linux drivers for each scanner, label printer, or card reader.
4. Who will maintain it? If nobody available knows Linux, the saving disappears the first time something breaks.
5. Is it a server or a single-purpose device? If the first four answers allow it, Linux is likely a good fit.

Machine	Usual answer
Web, database, or application server	Linux
File server for a Windows office	Either. Also consider SharePoint or OneDrive instead of a server
Kiosk, lobby display, single web app station	Linux or ChromeOS Flex
Developer workstation	Linux if the developer wants it
Front desk, bookkeeping, or practice software PC	Windows or Mac, whichever the software vendor supports
Older PC that cannot run Windows 11	Linux for browser-only work. Otherwise replace it

Common mistakes

• Choosing Linux for every desk to save license fees, then discovering one required program will not run.
• Installing an interim release instead of an LTS release and losing security updates within a year.
• Treating a Linux server as something that never needs updates or restarts.
• Leaving the setup undocumented, so nobody else can take it over.
• Forgetting the release’s end-of-support date. Linux versions reach end of life just as Windows 10 did.

Common questions

Is Linux really free for business use?

Yes. Ubuntu, Debian, Rocky Linux, and Linux Mint can be installed on business computers at no charge. Red Hat Enterprise Linux requires a paid subscription. Optional subscriptions such as Ubuntu Pro add longer security coverage or technical support. The larger cost in practice is the time to set up, update, and support the system.

Can I run Microsoft 365 on Linux?

Partly. Email, Word, Excel, PowerPoint, and Teams work through a web browser on Linux. Microsoft does not publish the desktop versions of those apps for Linux, so features that exist only in the desktop apps, including Excel macros, are not available. Staff who depend on those should stay on Windows or macOS.

Is Linux more secure than Windows?

It is a different target, not an immune one. Linux servers are attacked constantly because so much of the internet runs on them, and a phishing email works the same way in any browser. On either platform, security comes from prompt updates, strong sign-in controls, limited administrator rights, and tested backups.

Can I install Linux on an old Windows 10 PC instead of replacing it?

Often, yes, if the PC will be used for browser-based work and its hardware is still healthy. It will receive security updates again, which Windows 10 no longer does without a paid program. It will not run Windows programs, and an aging hard drive or small memory will still limit it. Back up any files before installing.

Which Linux should a small business start with?

Ubuntu LTS is the most common starting point because it has five years of free security updates, wide hardware and software support, and plentiful documentation. If a server application names a specific distribution in its requirements, use that one instead. For a Windows-like desktop on older hardware, Linux Mint is a common choice.

How Coastal Growth Co. can help

We support Windows, macOS, and Linux, so the recommendation follows what your software and staff need. We can review which machines in your office are candidates for Linux, set up and document an Ubuntu server, or take over updates and backups for one you already run. See managed IT services for how ongoing support works, and use the contact page to tell us what you have. Scope and price are agreed before any paid work.