When was the last time you took a proper look at your payroll? Most business owners fall into two camps:
Assuming everything’s running smoothly
Having a nagging feeling it's not set up 100% correctly but you've figured out some workarounds
But payroll issues don’t usually announce themselves politely and with plenty of warning. They catch you by surprise and become urgent problems – and that, interestingly, is when I meet most of my clients for the first time.
Realising you’ve been underpaying staff for months, or trying to figure out the root cause of mismatching data is stressful – especially when you can’t simply pause payroll to solve it.
But the good news is, just like an annual health check or WOF, most payroll problems are preventable when you catch them early.
So let's talk about the warning signs that it might be time for a payroll audit.
Your payroll is being handled by someone who just ‘pushes the buttons'
Having someone who can run your payroll is essential, but there's a big difference between knowing how to process payroll and understanding why it works the way it does.
I meet brilliant payroll administrators all the time, but many 'don't know what they don't know' – especially the underlying compliance requirements or the logic behind calculations. Sneaky errors slip through because they can't anticipate potential problems – they can only recognise them when it's too late and something's already gone wrong.
There are no documented payroll processes
If your payroll person went on holiday tomorrow, or decided to leave the business, could someone else step in and pick up where they left off?
If the answer is "Probably not" or "I have no idea," you've got a problem.
When everything lives in one person's head, you're one resignation away from flying blind. Documented processes help catch mistakes, ensure consistency and continuity, and give you a clear record of how things should be done.
Your business has recently changed
Change is a natural part of running a business. Employees move from full-time to part-time (or vice versa), work patterns have shifted, or you've brought on casual staff for the first time.
It’s easy to forget that when employee circumstances change, your payroll settings often need to change too.
For example: Amanda goes from full-time to part-time. How is her annual leave being calculated? What about public holidays? If these settings aren't updated properly in the system, you could end up underpaying Amanda – or overpaying, which creates its own headaches when you need to correct it later. Either way, it's messy, but it's avoidable with the right setup.
You've taken over payroll from another provider with no proper handover
Switching payroll providers can be a smart move, but it needs to be done properly. Too often, I see people suddenly responsible for payroll or processes with no context about why things were set up the way they were.
It’s a bit like moving into a new house with no idea what’s in each room, and no way of looking. Without a proper knowledge transfer, you're left guessing.
You're relying on 'default' settings in your payroll system
Payroll systems are powerful tools, but they're not infallible. Default settings are designed to work for a generic business, but your business has its own unique circumstances, employment agreements, and quirks.
I can't tell you how many times I've seen businesses rely on the system's automatic calculations, only to discover later that the default option wasn't compliant. Default settings might seem convenient, but they can lead to costly mistakes if they don't align with your reality and obligations.
Your payroll system is only as good as the settings you give it and if you're not sure those settings are right, it's time to check.
So, what now?
If you've recognised your business in any of these signs, please don't panic. The fact that you're even thinking about this puts you ahead of a lot of small businesses in New Zealand.
A payroll audit catches problems before they blow up – saving you from stressed employees, compliance issues, and a time-consuming mess to untangle.
It gives you a clear picture of what's working, what's not, and – most importantly – what needs to be fixed to keep you compliant and your team paid correctly.
My clients are often surprised by how much the uncertainty had been weighing on them until they finally got answers.
If any of this sounds familiar, let's have a chat. Book a free 15-minute payroll audit and get peace of mind that your payroll system is keeping you compliant.
About the author
Karyn Campbell is a New Zealand payroll consultant and founder of Payroll Consult. With 5+ years running her own consultancy and a background in payroll software – including roles across client support, onboarding, and partnership management at a leading NZ payroll provider – Karyn brings a rare combination of technical knowledge and real-world compliance experience. She works with business owners, bookkeepers, and payroll teams across New Zealand, specialising in payroll audits, system reviews, and fixing complex payroll issues for teams that don’t work a typical 9-5.
