Key Takeaways
- Most small businesses plan IT as a share of revenue or as a cost per employee, and both methods work.
- Recurring costs (support, security, licenses) should be the bulk of your budget. One-time projects should be planned, not surprises.
- Hardware needs a replacement schedule. Spread it over four or five years instead of absorbing it all at once.
- Add a reserve of about ten percent for things nobody predicted.
- A written assessment turns guesses into numbers you can defend to a partner or lender.
Most owners do not have an IT budget. They have a pile of bills that arrive at odd times. A laptop dies in March. A license renews in June. A server alarm shows up in October, and suddenly it is a $9,000 problem nobody planned for. That is not a budget. That is a reaction.
A real IT budget is simple. It lists what you spend every month, what you spend once a year, and what you will need to replace over the next few years. For a small San Diego business, that usually fits on one page. The hard part is knowing which numbers are realistic, and that is where outside help from an IT consulting team can save you from guessing.
This guide walks through the typical ranges, the main budget categories and a step-by-step way to build your own number. The figures are typical ranges, not quotes. Your final cost depends on your headcount, your software, your office layout and how much risk you can live with.
What Small Businesses Typically Spend on IT
There is no single correct number, but most small businesses land in a fairly narrow band. Two rules of thumb are common. The first is a share of revenue, often somewhere between three and six percent for a general office. The second is a flat cost per employee per month, which is easier to use when headcount changes.
Businesses that handle sensitive data, such as medical groups, wealth managers or biotech startups, often sit at the higher end. They pay for stronger security, more documentation and more careful backups. A five-person design studio in Little Italy will usually sit lower.
| Business Type | Typical Share of Revenue | Why It Lands There |
|---|---|---|
| General office (10 to 25 staff) | 3% to 5% | Standard support, email, backups and basic security |
| Professional services | 4% to 6% | More client data, more security expectations |
| Healthcare or regulated | 5% to 8% | Compliance work, logging and stricter access control |
| Tech or biotech startup | 5% to 9% | Cloud tools, many devices and investor-facing documentation |
Treat these as a starting point. If your number is far below the range, ask what is being skipped. If it is far above, ask what is being paid for twice.
A one-page budget is usually enough for a business with fewer than 50 employees.
The Six Lines Every IT Budget Needs
Most budgets fail because they only count the obvious items. Software and laptops get listed. Security, backup testing and projects get forgotten. Use these six lines as your skeleton.
- Support & management The monthly cost of someone watching your systems and answering your staff. This is either a managed plan, an in-house salary or hourly help.
- Software & licenses Microsoft 365, line-of-business apps, design tools, accounting software. List each one with its renewal date.
- Security Endpoint protection, email filtering, multi-factor authentication, training and a firewall subscription.
- Backup & recovery Cloud backup for servers and Microsoft 365 data, plus a tested recovery plan.
- Hardware Laptops, monitors, access points, switches and phones, spread across their useful life.
- Projects & reserve Office moves, migrations, new systems and a cushion for surprises.
Notice that only one of those six lines is hardware. Many owners assume IT cost means equipment. In practice, the recurring lines usually make up well over half of the total.
Recurring Costs: The Part That Repeats Every Month
Recurring costs are the easiest to predict, so start here. They include your support plan, licenses, security tools, internet and phone service. Add them up per user so you can see what each new hire really costs.
- Support: many small businesses pay a flat monthly fee per user for managed help. Typically this runs from about $100 to $200 per user per month, depending on what is included.
- Microsoft 365: usually $12 to $40 per user per month depending on the plan and add-ons.
- Security tools: often $10 to $30 per user per month when bundled with support, more if bought separately.
- Backup: typically $3 to $10 per user per month for cloud data, plus extra for servers.
- Internet: a business-grade connection commonly costs $100 to $400 per month at one office.
A flat fee matters here. Hourly help makes the budget a guessing game. A predictable plan is easier to defend and easier to forecast, as explained in the guide to managed IT services.
Per-user pricing lets you see the full cost of a new hire before you offer the job.
Hardware: Plan a Cycle Instead of a Panic
Laptops and desktops usually last three to five years in an office. Switches and firewalls often last longer, though security updates stop at some point. Wi-Fi access points are somewhere in the middle. The trick is to replace a slice every year instead of everything at once.
Suppose you have 20 laptops that cost about $1,300 each. If you replace them every four years, you set aside roughly five laptops a year, or about $6,500. That is a line you can budget. Replacing all 20 in one month because Windows support ended is a cash crunch.
| Item | Typical Useful Life | Typical Cost Range |
|---|---|---|
| Business laptop | 3 to 5 years | $1,000 to $2,000 |
| Desktop workstation | 4 to 6 years | $800 to $1,800 |
| Managed switch | 5 to 8 years | $300 to $2,000 |
| Business firewall | 4 to 6 years | $500 to $3,000 |
| Wi-Fi access point | 4 to 6 years | $200 to $700 |
| Small server | 4 to 6 years | $4,000 to $15,000 |
San Diego has one small advantage here. Mild weather means less heat damage in many offices, though closets in older buildings still get hot. Keep equipment off the floor and give it airflow, and it will last longer.
Security & Backup: The Lines Owners Cut and Regret
When money is tight, security and backup are the first things to get trimmed. That is backwards. They are also the lines that decide whether an ordinary bad day becomes a company-ending one. A single phishing email can lock your files, and recovery costs often dwarf a year of prevention.
What to protect first
- Multi-factor authentication on email and remote access.
- Email filtering that catches fake invoices and payment requests.
- Endpoint protection on every laptop and server.
- Backups that are copied off-site and actually test-restored.
If you are unsure what is already in place, a written review can show the gaps before you spend anything. An IT assessment lists what you own, what is out of date and what is missing, so your budget starts from facts.
Multi-factor authentication costs little per user and blocks a large share of stolen-password attacks.
Projects: Budget for Change, Not Just Maintenance
Most years include at least one project. You might move offices, add a second location, change phone systems or move files to the cloud. Projects are the main reason budgets get blown, because owners treat them as emergencies instead of events.
Give every project a line, a rough cost and a target quarter. Even a loose estimate is better than none. For larger work, project management help keeps the schedule and cost from drifting, especially when several vendors are involved.
- Name the project Write one sentence on what changes and why it matters to the business.
- Set a range Ask for a low and high estimate. A range is more honest than a single number.
- Pick a quarter Avoid your busiest season. Many San Diego firms avoid tax time or end-of-year closeouts.
- Add 15 percent Projects almost always uncover something unexpected, such as old cabling or an unsupported app.
If a project involves your network, such as new Wi-Fi in a glass-heavy office or a second site, a network assessment shows what you have before you buy anything. That avoids paying twice.
Build Your Own Budget in One Afternoon
You do not need special software. A spreadsheet with three tabs is enough: recurring, hardware and projects. Here is a practical order that takes about two to three hours.
- Count people & devices List every employee, contractor and shared device. Include phones and tablets.
- List every subscription Check credit card statements for the past twelve months. You will find tools nobody uses.
- Record ages Note purchase dates for laptops, firewalls, switches and servers.
- Price replacements Spread each replacement over its useful life to get a yearly figure.
- Add projects & reserve Include known projects, plus about ten percent for surprises.
- Convert to per-user Divide the total by headcount. This is the number to compare against your revenue range.
Once you have this, you can compare it against the typical ranges above. If you have no technical person on staff, a virtual CIO can own this process every year, review it with you each quarter and flag changes before they cost money.
Three tabs, recurring, hardware and projects, cover the budget for most offices under 50 people.
Common Budget Mistakes in Small Offices
- Budgeting only for hardware and forgetting recurring costs.
- Paying for the same tool twice, for example two backup products or two meeting apps.
- Keeping old equipment past support dates to save money, then paying more after a failure.
- Treating security as optional until after an incident.
- Skipping a reserve, so a single repair becomes a crisis.
- Never reviewing the budget. IT needs change when staff, locations or customers change.
The pattern behind all six is the same. The budget was built once and then ignored. A short review each quarter fixes most of them. If your network is part of the picture, an outside IT consulting review is a calm way to get a second opinion.
Not sure whether your current spend is high, low or fine? A free IT assessment compares your setup against typical needs for a business your size, and it gives you a written list you can act on at your own pace.
A good IT budget does not need to be complicated. It needs to be honest. List what you pay every month, what you will replace and what you plan to change. Add a cushion, check it every quarter and adjust when your team grows. Done that way, IT stops being a source of surprises and becomes a line you can predict.
If you would like help turning this into real numbers for your office, start with a free IT assessment. You will get a written summary of what you have, what is at risk and what a sensible yearly budget looks like for your business. There is no pressure to commit. You can use it to plan on your own schedule.
FAQs
How much should a small business spend on IT?
Most small businesses spend about three to six percent of revenue on IT, or roughly $150 to $350 per employee per month all in. Regulated or data-heavy firms often spend more. Treat these as typical ranges and adjust after reviewing your own devices, software and risk.
Is IT cost per employee or per device?
Both are used. Managed support is commonly priced per user because it is easier to forecast as you hire. Hardware and licenses are counted per device or per seat. Build your budget per user so you can see the full cost of adding a team member.
What is included in a small business IT budget?
A complete budget includes support, software licenses, security tools, backup, hardware replacement, internet and phone service, and planned projects. Add a reserve of around ten percent. Many owners forget security and backup, which are the lines that protect everything else.
How often should I replace computers?
Most business laptops and desktops last three to five years. Plan to replace a portion each year instead of everything at once. Replace sooner if the machine can no longer receive security updates or slows your staff down noticeably.
Is managed IT cheaper than hiring someone?
For most small offices, yes. One full-time IT employee costs salary, benefits, tools and backup coverage when they are out. A managed plan spreads those costs across many clients. Very large teams may justify in-house staff, and some use a mix of both.
What happens if I underspend on IT?
Underspending usually shows up as downtime, slow computers, missed updates and higher risk of a security incident. The savings tend to be small compared with the cost of one lost week or one ransomware event. Prevention is nearly always cheaper.
Can I lower my IT costs without cutting security?
Yes. Start by removing unused licenses and duplicate tools, then consolidate vendors. Extend equipment life carefully where support remains active. Keep multi-factor authentication, email filtering, backups and monitoring in place. Those cost little and prevent the expensive problems.
Should I budget for cloud or on-site servers?
Many small businesses now run mostly on cloud tools such as Microsoft 365, which turns large equipment purchases into predictable monthly fees. Some still need local servers for specific software or large files. Compare five-year total cost, not just the first year.
How do I budget for an office move?
Give it its own project line. Typical costs include cabling, Wi-Fi, a firewall, moving and reconnecting equipment, and some downtime planning. Get written quotes early and add about fifteen percent for surprises such as older wiring or building access limits.
When should I review my IT budget?
Review it once a year at minimum, and again whenever headcount, locations or major software change. A quick quarterly check is better. It catches unused licenses and upcoming replacements before they turn into surprise bills.
Tyler Navarro
Editorial Director, Giga San Diego
Tyler runs the Giga San Diego editorial desk and turns what our technicians see every week, from Santa Ana wind outages to office moves along I-5, into practical guides for San Diego business owners. He grew up in the county and has spent more than 15 years in IT services, starting on a help desk in Kearny Mesa and later leading network and support projects for biotech firms, clinics, logistics companies and defense suppliers. He holds Microsoft 365 and CompTIA Security+ certifications. Lately he focuses on how AI tools such as Microsoft Copilot can help small teams without exposing sensitive data, and every guide he writes is reviewed by a working technician before it goes live.