A working IT budget for a small business splits spend into three categories: fixed costs (help desk, licensing, security), planned projects (migrations, upgrades, compliance work), and a reserve for the unplanned, typically 10 to 15 percent of the total budget set aside for whatever wasn’t foreseen. Businesses that skip the third category end up funding emergencies out of whatever budget line is easiest to raid, which distorts planning for the following year too.
Why “last year plus a little” doesn’t work
The most common IT budgeting approach for small businesses is looking at what got spent last year and adjusting slightly. It’s simple, but it has no relationship to what the business actually needs going forward, whether that’s a compliance deadline, a planned migration, or growth that’s about to strain existing systems. It also has no room for the unplanned, which is precisely when businesses end up making rushed, expensive decisions.
Category one: fixed costs
Help desk and managed IT support, security tooling, and software licensing make up the predictable core of an IT budget. These costs should be reviewed annually, not just renewed automatically, since license counts and tooling needs change as a business grows or shrinks.
Category two: planned projects
This is where a technology roadmap becomes a budgeting tool, not just a planning document. A Microsoft 365 migration, a compliance push tied to a contract deadline, or a new production dashboard should all have a budget line tied to a specific timeframe, not get bundled into a vague “IT improvements” catchall. See IT roadmaps: planning technology spend around growth for how this ties together.
Category three: the reserve nobody budgets for
Hardware fails. A security incident happens. A vendor changes their pricing model with 60 days notice. A reserve of 10 to 15 percent of your total IT budget absorbs these without forcing a mid-year scramble or a delayed planned project. Businesses that don’t carry this reserve tend to fund emergencies by cutting a planned project instead, which just pushes the problem into next year.
What role a vCIO plays in this
Budget planning is one of the core functions of a fractional CIO engagement: reviewing spend against the roadmap quarterly, flagging when a category is running over or under, and adjusting the reserve target based on the business’s actual risk profile. See what a fractional CIO actually does for a business under 100 employees for the full scope.
If you’ve never had a real IT budget beyond “whatever it costs this year,” TekNation can help build one tied to where your business is actually headed.
Budgeting for IT is part of the strategy and vCIO guidance covered in our full managed IT overview.
Frequently asked questions
What percentage of revenue should a small business spend on IT?
This varies significantly by industry and how technology-dependent the business is, but many small manufacturing and logistics businesses land somewhere between 2 and 6 percent of revenue. A vCIO review can give you a number specific to your situation rather than a generic benchmark.
How often should an IT budget be reviewed?
At minimum annually, tied to your fiscal year planning, with a quarterly check-in against the roadmap to catch drift before it becomes a year-end surprise.