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Self-employed cleaner tax: what cash in hand really costs you

By Sandra Sanz · Published 16 August 2026

Self employed cleaner tax explained for 2026/27: what to declare, the expenses most cleaners miss, and how cash in hand compares to doing it properly.

Cleaning is one of the easiest trades in the UK to start. A car, some products, a few clients from a local Facebook group, and you are working. It is also one of the easiest to start badly, because so much of the money moves in cash and nobody hands you a payslip explaining what you owe.

So this is the self employed cleaner tax picture with the actual 2026/27 numbers. What you have to declare, what you can knock off, and an honest comparison between the cash-in-hand route and doing it properly. The second one is closer than most people assume.

What self employed cleaner tax means in one sentence

If you clean for clients rather than for an employer, you are a sole trader, and you owe income tax and Class 4 National Insurance on your profit, not on what lands in your hand.

The distinction between turnover and profit is the whole game. A cleaner turning over £19,000 does not pay tax on £19,000. Get the expenses right and the taxable figure drops a long way.

The cash in hand question, answered properly

Let me separate two things that get bundled together.

Being paid in cash is legal. It is not suspicious, it is not a loophole, and half of domestic cleaning in this country works that way because clients find it easier. You can be paid in notes for every job you ever do and be completely compliant.

Not declaring that income is the illegal part. And the risk profile has changed.

HMRC runs a data system called Connect that cross-references bank deposits, Land Registry records, online marketplace listings, and card payment data. Cleaning agencies and platforms report the people who work through them. If you regularly bank cash that does not match a declared income, that pattern is visible.

The penalty for failing to tell HMRC you were trading runs to 30% of the tax owed if they judge it careless, 70% if deliberate, and 100% if deliberate and concealed. That is on top of the tax itself and the interest, which is currently 7.75% a year. Volunteer the information before they ask and the careless penalty can be reduced to nothing.

There is a quieter cost too, and it hits harder than the penalties. Undeclared income does not exist for a mortgage lender. It does not count towards Maternity Allowance. It does not build State Pension qualifying years. Plenty of cleaners have spent a decade earning well and then found they could not evidence a single pound of it when they needed to.

The expenses most cleaners never claim

This is where the compliant route earns its keep. Cleaning has genuinely high allowable costs, and self employed cleaner tax bills are usually inflated by nothing more complicated than people forgetting to claim them.

Mileage between jobs. 55p a mile for the first 10,000 business miles in 2026/27, then 25p. HMRC raised this from 45p in April 2026, the first increase since 2011, and for a cleaner driving between five houses a day it is the single biggest deduction available.
Products and equipment. Everything from bleach to a new vacuum. Larger items may need to be treated as capital, but the annual investment allowance usually covers it in full.
Protective clothing and branded uniform. Gloves, tabards, anything with your business name on it. Ordinary clothes you happen to wear to work do not count.
Public liability insurance. Most agencies and many private clients now require it anyway.
Phone and internet, in proportion to business use.
Working from home, at a flat rate based on hours spent on admin: £10 a month for 25 to 50 hours, £18 for 51 to 100, £26 above that.
Accountancy or bookkeeping software.

The trap to avoid: travel from home to one regular workplace is commuting, not business mileage. If you clean the same office every morning, that journey does not count. Travel between clients during the day does.

A worked example

Take a self-employed domestic cleaner working 25 hours a week at £16 an hour, 48 weeks a year, driving about 120 miles a week between jobs.

Turnover: £19,200

Expenses:

Mileage, 5,760 miles at 55p: £3,168
Products and equipment: £600
Public liability insurance: £80
Phone, business share: £120
Home admin flat rate: £120
Total: £4,088

Profit: £15,112

Tax on that profit:

Income tax at 20% on the £2,542 above the £12,570 personal allowance: £508
Class 4 National Insurance at 6% on the same £2,542: £153
Total due: £661

So the January bill on a £19,200 year is about £661. Not nothing, but a long way from the number people fear when they imagine “going legit”. The mileage claim alone saved roughly £700 in tax, which is why self employed cleaner tax is so often overestimated by people who have only ever looked at their turnover.

Now compare it to an employed cleaner. At the National Living Wage of £12.71 an hour, 25 hours a week over the same period, gross pay is £15,252. After income tax and Class 1 National Insurance at 8%, take-home is roughly £14,500. Our self-employed cleaner keeps about £14,450 of profit.

Almost identical. The difference is not the money, it is everything around it: the employed cleaner gets 5.6 weeks of paid holiday, statutory sick pay, and an employer paying at least 3% into a pension. The self-employed cleaner gets none of that, and charges £16 rather than £12.71 precisely to cover the gap. If you are self-employed and charging close to minimum wage, you are effectively working for less than an employee.

How to set yourself up properly

Check the £1,000 trading allowance first. Under £1,000 of self-employed income in a tax year and you have nothing to register or file. Cleaning one flat a fortnight for a friend probably sits here.
Register with HMRC at gov.uk by 5 October following the end of your first trading tax year. You will get a UTR in the post within about two weeks.
Open a separate bank account for the business. Not legally required as a sole trader, but it turns your bookkeeping into a bank statement and makes an HMRC enquiry a non-event.
Log mileage as you go. A note on your phone with date, client and miles is enough. Reconstructing a year of journeys in January is miserable and inaccurate.
Put aside 20% of profit, not of turnover. On the example above that would have overshot comfortably, which is the right direction to be wrong in.
Know your ceilings. Voluntary Class 2 at £3.65 a week is worth paying if profit is under the £7,105 Small Profits Threshold, purely to protect State Pension years. And you must register for VAT if turnover passes £90,000 in any rolling 12 months, which a cleaning business with a small team can reach faster than expected.

The Self Assessment deadline calendar covers the dates once you are registered.

What 2026/27 changed, and what didn’t

The change that matters most to cleaners is mileage. 55p a mile from 6 April 2026, up from 45p, backdated to the start of the tax year. If you drive between jobs, recheck any figures you worked out earlier in the year, because they are understated.

The National Living Wage rose to £12.71 in April 2026, which matters even if you are self-employed. It sets the floor your private clients compare you against, and it is the number to price above rather than at.

Unchanged: the £12,570 personal allowance, the £1,000 trading allowance, Class 4 at 6% and 2%, the £90,000 VAT threshold. Making Tax Digital arrived in April 2026 but only for self-employment and property income over £50,000, so most solo cleaners are outside it until the threshold drops to £30,000 in April 2027.

The short version

Cash payment is legal. Not declaring it is not, and HMRC’s data matching makes it a worse bet every year.
Self employed cleaner tax is charged on profit, and realistic expenses often halve the taxable figure.
You are taxed on profit, not turnover. Mileage at 55p a mile is usually the biggest deduction.
On £19,200 of cleaning turnover with realistic expenses, expect a tax bill around £661.
Declared income is what buys you a mortgage, Maternity Allowance and State Pension years.
Register by 5 October after your first trading year, save 20% of profit, and log your miles as you drive them.

If you want to see what your cleaning income leaves you with after tax and National Insurance, week by week rather than once a year, the NetPay app tracks variable self-employed income and works it out as you go. Free to download.

Frequently asked questions

Is it illegal to be paid cash in hand for cleaning?

No. Being paid in cash is perfectly legal, and plenty of domestic clients prefer it. What is illegal is not declaring that income to HMRC. The payment method is not the problem, the missing tax return is.

How much can I earn cleaning before I pay tax?

If your total self-employed income is under £1,000 in a tax year, the trading allowance covers it and you do not need to register or file. Above that you must register, though you will pay no income tax until your profit passes £12,570 and no Class 4 National Insurance until the same point.

What expenses can a self-employed cleaner claim?

Mileage between jobs at 55p a mile for the first 10,000 miles, cleaning products and equipment, protective clothing, public liability insurance, your phone bill in proportion to business use, and a flat rate for doing admin at home. Travel from home to a single regular workplace does not count.

Do self-employed cleaners pay National Insurance?

Class 4 at 6% on profits between £12,570 and £50,270, then 2% above that. Class 2 is no longer compulsory, but if your profit is under £7,105 you can pay it voluntarily at £3.65 a week to keep your State Pension record intact.

Want to see your actual take-home pay?

NetPay UK works out your real net pay after tax, NI, pension and salary sacrifice, for hourly, shift and variable-income workers. Free to download.

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