The Employment Status Mistake Small Business Owners Make Without Realising
If you have taken someone on to help in your business, or you are thinking about taking on staff for the first time, this one is for you.
It does not matter whether you run a Pilates studio, a shop, a consultancy, or a side hustle alongside your main work. The moment someone is doing regular work for you, their employment status matters. And it is one of those things that is very easy to get wrong without realising it.
The most common mistake
Most small business owners who take someone on want to keep things simple. Self-employed or freelancer feels easier. No payroll, no sick pay, no holiday entitlement. You agree a rate, they invoice you, everyone gets on with it.
The problem is that employment status is not decided by what you both agree to call it. It is decided by the reality of the working relationship. And if the reality looks more like employment than freelancing, the label on the contract does not protect you.
What the three categories actually mean
Under employment law, there are three categories.
An employee has the most rights and the most responsibilities. They have set hours, a place of work, and they cannot send someone else to do the job for them.
A worker sits in the middle. They have some flexibility but are still in a dependent working relationship. They have fewer rights than an employee but more than someone who is genuinely self-employed.
A self-employed person or freelancer has real flexibility in how, when and where they deliver their services. They might work for several clients at once, set their own hours, and send someone else to do the work if they choose to.
The question is not which category you want someone to be in. The question is which category the reality of your working relationship puts them in.
What this looks like in practice
Think about the person you have taken on. Do any of these sound familiar?
They work regular hours or set shifts for you. They work at your premises or a location you have decided. They cannot send someone else in their place. You are their main or only source of work. You provide their equipment or tools.
If several of those apply, you may be looking at a worker or an employee, even if the contract says self-employed or freelancer.
This catches people out across all kinds of businesses. A tutor or instructor taking on someone to run regular classes. A professional services firm bringing in another specialist and presenting them as part of the team. A retailer asking a self-employed creative to work regular short shifts in the shop. In each case, the working relationship needs looking at carefully before the contract is written, not after.
A free tool worth using
HMRC has a free online tool called CEST, Check Employment Status for Tax, which you can use to check whether someone working for you should be treated as employed or self-employed for tax purposes. It is not a legal determination of employment status, but it is a useful starting point and a good way to document your thinking.
If the tool comes back undecided, that is your signal to get proper advice before you go any further.
You can find it here: https://www.gov.uk/guidance/check-employment-status-for-tax
A note on IR35
IR35 is a separate but related area worth being aware of. It applies specifically when you engage another limited company, rather than an individual, to provide services, and the reality of that working relationship looks like employment.
If you are taking on a contractor who operates through their own limited company rather than as a sole trader, it is worth checking whether IR35 applies. For most small businesses, the responsibility for determining IR35 status sits with the contractor's own company rather than with you, but it is worth understanding the rules exist.
The CEST tool covers IR35 status as well as employment status, so it is a useful starting point here too.
What happens if you get it wrong
Employment status is not just an administrative detail. Getting it wrong as a business owner can mean:
A worker or employee making a claim for rights they were entitled to all along, including holiday pay, sick pay or unfair dismissal. Back payments going back years in some cases. HMRC investigating whether the right tax and National Insurance have been paid. An employment tribunal claim that is costly and time-consuming. Reputational damage if a dispute becomes public.
Since October 2026, the time limit for bringing most employment tribunal claims has doubled from three months to six. That means more time for someone to bring a claim if their status has been misclassified.
Questions worth asking now
Before you take someone on, or if you already have people working with you regularly, it is worth asking:
Do I know the employment status of everyone I work with? Does the reality of how we work together match what the contract says? Could they send someone else to do this work, and would I accept that? Are they genuinely working for other clients too, or am I their main source of work? Have I checked their status using the CEST tool and documented the result?
If you are not sure about any of those answers, it is worth a conversation before it becomes a problem.
How we can help
Employment status sits at the crossroads of employment law and tax, and it is an area where getting the right specialist involved matters.
If you are a client of ours and you need to work through this properly, we have trusted HR contacts we can point you towards. And if the tax side of things needs untangling alongside it, that is where we come in.
For everyone else, the CEST tool is a good starting point, and if it comes back undecided, that is your signal to find a specialist employment lawyer or HR adviser before you go any further.
Here when you need us,
3 Little Birds Finance
