Most owners budget for I.T. by reacting to whatever broke last. A better approach is to treat it like any other line in your operating budget, with a number you set on purpose. I keep monthly financials for my own business, so I think about this the way I think about any recurring cost. The goal is to know what you spend, know what you get for it, and stop being surprised.
Start by separating two kinds of I.T. spending, because they behave differently. The first is running the business: the steady monthly cost of keeping things working. Support, security, backups, licenses, the basics. This should be predictable, and you should be able to state it as a per employee figure. The second is change the business: projects. A new system, an office move, a major upgrade. These are larger, occasional, and worth planning a year ahead so they do not arrive as emergencies.
The reactive trap is spending nothing until something fails, then spending a lot in a panic. That feels like saving money. It usually costs more, because emergency work is expensive, downtime is expensive, and equipment run until it dies takes data and time with it. Steady, planned spending is almost always cheaper over a few years than the same money spent in crises.
A simple way to sanity check your number is per employee per month. Add up what you spend on I.T. in a normal month, including outside providers, software, and a share of any big projects, and divide by headcount. That single figure lets you compare year to year and against what is normal for your size and industry. If yours is far below typical, you are likely carrying risk you have not priced. If it is far above, you may be paying for tools you do not use.
We have this conversation with clients at CIO Landing during planning. What is the steady monthly number, what projects are coming, and what does a sensible per employee figure look like for a company your size? It turns I.T. from a series of surprises into a line you can forecast like rent or payroll.
One more piece. Budget for replacement before things break. Computers and network gear have a useful life. If you know a batch of laptops is three years old, you can plan to replace them next year on your terms, instead of buying five at once the week they start failing.
Pull your last twelve months of I.T. spending and divide by your headcount. Do you know your per employee number? If that figure surprises you, your I.T. budget is being set by accidents instead of by you.