Past 10 staff? 5 reasons your IT needs a proper partner

Every business has one. The person who’s “good with computers”. Maybe it’s the office manager, maybe it’s the owner, maybe it’s the staff member who fixed the printer once and has been fixing it ever since.

At five staff, that works fine. At 10 or more, it quietly stops working. Usually not in one big failure. It shows up as a slow pile of small things: a laptop nobody set up properly, a password shared around the office, a backup that stopped running in March and nobody noticed.

Here are five reasons a business past 10 staff is better off with an external IT partner, whether that’s us or someone else.

1. Your “IT person” already has a real job

The person doing IT on the side was hired to do something else. Every hour they spend resetting passwords or sorting out a Microsoft licence is an hour taken away from the work you actually pay them for.

At 10 staff the requests don’t just add up, they interrupt. A two-minute question at 9am, a broken screen at 11, a “quick one” after lunch. None of it shows up on a timesheet, so it feels free. It isn’t.

And when that person goes on leave or resigns, everything they knew goes with them, because none of it was written down.

2. People come and go often enough for access to drift

With a handful of staff, you know exactly who can get into what. Past 10, people join, leave, change roles and borrow each other’s logins more often than anyone keeps track of.

That’s how businesses end up with former staff whose email still works, new starters set up by copying “whatever the last person had”, and one admin password that half the office knows. Each of those is a door left open.

A good partner runs joiners and leavers from a checklist, every time. Access matches the job, and it closes the day someone leaves. We wrote more about this in onboarding a new hire’s IT before their first coffee.

3. More inboxes means more chances for one bad click

Most attacks on businesses your size don’t start with clever hacking. They start with an email. Every extra person is another inbox, another phone and another chance someone clicks the wrong link on a busy afternoon.

The cost of getting it wrong grows with you, too. In the ASD’s Annual Cyber Threat Report 2024–25, the average cost of a cybercrime reported by a small business was $56,600. For a medium business it was $97,200, up 55% on the year before.

Nobody can promise you’ll never be breached. But multi-factor sign-in, decent email filtering, up-to-date devices and some staff training make you a much harder target. Those protections only stay switched on if someone is actually watching them.

4. When systems stop, more people stop with them

Do the maths on a bad morning. If email and files are down for four hours and 12 people can’t work, that’s 48 hours of wages for nothing. Plus the clients who couldn’t get through.

Then there are backups. Most businesses have them. Far fewer have checked that a restore actually works. A backup nobody has tested is a hope, not a plan.

An IT partner watches your systems so problems get caught before your staff notice them, and tests restores so you know how long it would take to get back up. Microsoft 365 is a common blind spot here, and the Microsoft 365 backup gap explains why.

5. Someone needs to plan ahead, not just fix things

A part-time helper fixes what’s broken today. That’s useful. But it means nobody is looking at next year: the laptops that are five years old, the server that makes everyone nervous, the licences you pay for that nobody uses, and the security questions a big client or your insurer has started asking.

Past 10 staff, IT is a real budget line, and it’s worth managing like one. A good partner gives you a clear plan, a predictable monthly cost and a way to see what’s been done.

When you might not need one

To be fair: if you already have a capable in-house IT person with the time to do the job properly, you might only need outside help with the specialist parts, like security or a big project. And a three-person business can often get by with good habits and a few sensible settings. Cyber security basics for small business covers those.

What to look for in an IT partner

• A fixed monthly fee that covers support. Nobody should hesitate to call because of the bill.
• Local people who know your setup, not a different stranger every time you ring.
• Proactive monitoring, so problems are found before your staff find them.
• A recognised security standard to work towards, and a plan for getting there.
• Visibility. You should be able to see what they’re doing for the money without having to ask.

That last one matters more than it sounds. “We pay every month and have no idea what for” is one of the things we hear most from businesses looking to switch.

The takeaway

Somewhere around 10 staff, IT stops being a side task and becomes something the whole business leans on every hour of the day. You can keep handing it to whoever’s nearest, or you can hand it to people whose whole job it is. If you’d like to see what the second option looks like, here’s how we run managed IT support at Unity.