It's one of the most common arrangements in the cleaning industry: a business owner takes on a cleaner, pays them as self-employed, and everyone carries on assuming this is fine. Often it isn't. And when HMRC decides it isn't, the consequences aren't a gentle nudge — they're a backdated tax bill covering potentially six years of unpaid PAYE and National Insurance, plus interest and penalties.
This guide explains the three tests HMRC uses to determine employment status, what genuinely self-employed and genuinely employed looks like in practice, and what you need to do if your arrangement falls on the wrong side of the line.
Why this matters so much
The financial stakes are serious and frequently underestimated. If HMRC reclassifies a worker you've been treating as self-employed, they can issue a demand for all the PAYE income tax and employer and employee National Insurance contributions that should have been deducted — going back up to six years. On a cleaner paid £15,000 per year, that could amount to £20,000–£30,000 in backdated liability before interest and penalties are added.
HMRC's enforcement activity in this area has increased significantly. The cleaning industry — with its mix of cash payments, sole trader arrangements, and agency workers — is precisely the kind of sector that attracts compliance interest. The risk of getting this wrong isn't theoretical.
The three HMRC tests explained
HMRC uses three primary tests to determine whether a worker is employed or self-employed. All three must be considered together — no single test is definitive on its own.
1. Substitution
Can the worker send someone else to do the work? A self-employed person has the right to substitute — to send a qualified replacement if they can't make a job. If your cleaner must personally turn up to every job and cannot send someone in their place without your approval (or can't substitute at all), this points strongly toward employment. A genuine right of substitution — one that's actually exercised in practice, not just written into a contract — is one of the clearest indicators of self-employment.
2. Control
Do you direct how the work is done? Employment is characterised by an employer telling a worker what to do, when to do it, and how to do it. If you set the cleaner's schedule, specify which rooms to clean and in what order, supply a checklist, and provide the equipment and products, you're exercising the kind of control that looks like employment. A self-employed contractor decides their own methods and timing — they deliver a result, not obedience to a work process.
3. Mutuality of obligation
Are you obliged to offer work, and are they obliged to accept it? In an employment relationship, there's a mutual expectation: you offer regular work and the worker is expected to accept it. A self-employed person can turn down jobs without consequence, and you're under no obligation to offer them a minimum number of hours. If your cleaner has a fixed schedule they're expected to show up to every week and turning down a job would damage the relationship, mutuality of obligation points toward employment.
What genuinely self-employed looks like in practice
A genuinely self-employed cleaner working for your business would typically:
- Work for multiple different clients simultaneously, not exclusively for you
- Set their own rates and negotiate their own terms with each client
- Provide their own equipment, products, and transportation
- Have the genuine right to send a substitute cleaner if they can't attend
- Bear their own financial risk — if a job takes longer than expected, that's their problem, not yours
- Invoice you for completed work rather than receiving a regular wage
- Be responsible for their own tax, NI, public liability insurance, and professional indemnity
A specialist contractor brought in for a one-off commercial deep clean under their own terms, with their own specialist equipment, is a reasonable example of genuine self-employment. So is a window cleaner who services a dozen different clients including yours, sets their own schedule, and uses their own kit.
What employed looks like in practice
An employed cleaner working for your business would typically:
- Work exclusively or primarily for your business
- Follow a schedule you set, cleaning properties you assign, in the order you specify
- Use equipment, products, and a uniform you provide
- Be expected to personally attend every job — no substitution in practice
- Receive a regular wage (weekly, fortnightly, or monthly) rather than invoicing per job
- Have no financial risk — they're paid the same whether the job is easy or difficult
If the cleaner you're calling self-employed ticks most of these boxes, HMRC is very likely to agree with a reclassification if they ever look.
The grey zone
Reality is often messier than the two clean categories above. Part-time workers, zero-hours arrangements, and casual workers who do occasional cover shifts occupy genuinely ambiguous territory. A cleaner who works for you three days a week and has two other clients may have a defensible self-employed status, depending on how the control and substitution tests score. A casual cover worker brought in for holiday periods, with no guaranteed hours and genuine freedom to refuse bookings, may also hold up.
The danger zone is the arrangement that looks like employment in every practical sense but has a self-employed label attached — typically because it's administratively convenient and neither party has thought carefully about the legal reality. This is where enforcement risk is highest.
HMRC's CEST tool — use it for every new working relationship
HMRC provides a free online tool called CEST — Check Employment Status for Tax. It asks a series of structured questions about the working arrangement and returns an official determination of employment status. The determination is not legally binding, but HMRC has committed to stand by CEST results provided the information entered was accurate.
The tool is available at gov.uk/guidance/check-employment-status-for-tax. It takes around 10 minutes to complete for each new working arrangement. If the result is "employed," treat it accordingly — don't override the determination because self-employment is more convenient.
If you employ: what you need in place
If your arrangement is employment — or if you want to start hiring employees properly — the administrative requirements are straightforward but non-negotiable:
- Register as an employer with HMRC — done online in a few minutes, required before you pay anyone
- Run PAYE payroll — calculate and deduct income tax and employee National Insurance from each pay run
- Make RTI submissions — Real Time Information submissions go to HMRC on or before each payday
- Pay employer National Insurance — currently 13.8% on earnings above the secondary threshold
- Issue a written employment contract — required within the first day of employment since 2020
- Check right to work — mandatory check that the employee has the right to work in the UK before they start
- Enrol eligible workers in a pension scheme — auto-enrolment applies once a worker earns above £10,000 per year
Payroll software makes most of this straightforward. Services like Xero, QuickBooks, or Sage Payroll handle RTI submissions automatically and cost £25–£50 per month for a small team.
How Cadi helps with staff management
Cadi is designed to support cleaning businesses as they grow their teams — whether that's a single employed cleaner or a larger workforce of mixed status workers. The platform handles the operational layer that keeps your team running smoothly:
- Scheduling — assign jobs to team members, manage availability, and track who's on which job in real time
- Team communications — send job details, client notes, and schedule changes directly through the platform
- Job completion tracking — see when jobs are marked done and by whom, creating a record of hours and work delivered
- Payroll readiness — export staff hours and job records in formats compatible with payroll software
- Client and job records — maintain a clean audit trail of who worked where and when, which matters if employment status is ever questioned
Getting employment status right isn't just a legal obligation — it's the foundation of a business that can grow sustainably, attract good people, and operate without the fear of a knock from HMRC. Get it right from the start and it becomes one less thing to worry about.