What it actually costs to go out on your own in the UK trades

You have the work lined up, you have a day rate in your head, and the sums look fine. Then you start listing what has to be paid for before the first application even goes in, and the list keeps growing: a card, a test, insurance, a van, the materials on job one, and the rent while you wait.

The gap that catches people out is not the setup bill. It is the distance between the day you do the work and the day the money lands, made wider by the 20% the main contractor takes off your labour at source under the Construction Industry Scheme. This page prices both halves with 2026 figures, then counts the hole month by month so you know what to have behind you before you hand in your notice.

What it costs to be able to start at all

These are the one-off items for a sole trader going on site as a CIS subcontractor. The registrations are free, which surprises people. The rest is real money.

Going limited instead adds £100 to incorporate digitally at Companies House, £124 on paper or £156 for same day, all in force since 1 February 2026, plus £50 a year for the confirmation statement. Those are published fees rather than estimates.

The card, the test and the qualification

Site access in the UK is contractual rather than statutory. Nothing in law says you must hold a CSCS card. Principal contractors flow the requirement down through their site rules and through Build UK's Common Assessment Standard, which is why the gate turns you away without one.

The sequence for a new entrant is short: pass the CITB Health, Safety and Environment test at £23.50, hold the Level 1 Award in Health and Safety in a Construction Environment, then apply for the Green Labourer card at £36. The first Labourer card now runs two years rather than five, so put the renewal in the diary the day it arrives.

Getting off the Labourer card and onto the Blue Skilled Worker card takes a relevant NVQ or SVQ at Level 2. An experienced tradesperson does not have to go back through an apprenticeship to get one. On-Site Assessment and Training, and the Experienced Worker Practical Assessment, build a portfolio and have you observed on your own jobs, typically over two to six months, at around £750 plus VAT commercially. Since 8 January 2026 the CITB achievement grant has been a flat £600 for NVQs at Levels 2 to 6, claimed by a levy-registered employer, which is worth asking your main contractor to put in for on your behalf.

Insurance: the figure the law sets and the figure your contract sets

Only one construction insurance is compulsory by statute. The Employers' Liability (Compulsory Insurance) Act 1969 requires cover of at least £5m as soon as you have an employee. HSE enforces it at £2,500 for every day you trade uninsured and £1,000 for failing to display or produce the certificate.

The trap for a subcontractor is who counts as an employee. A labour-only subcontractor working under your direction, on your tools and your materials, sits on your policy rather than his own. A bona fide subcontractor working unsupervised on a defined task, with his own plant, his own materials and a quoted price, carries his own. Insurers ask this as a declaration question at renewal, and the answer decides whether a claim is paid.

Public liability is not compulsory by statute and is compulsory in practice, because the number is written into the contract you sign. Under JCT it sits in the Contract Particulars at clause 6.4.1, so the limit is not a matter of market convention: it is a term. £2m is the domestic floor, £5m is what main contractors, local authority tenders and most commercial leases specify, and £10m turns up on frameworks and utilities work.

What you pay depends on what you do to earn it. Simply Business publishes quotes from £5.40 a month, with 10% of its customers paying £64.78 or less for the year, and those are the low-risk end of its book. A trade working at height, cutting into structure or carrying out hot works sits well above it. Broker quote bands for a one-person business at £2m:

Tool cover is where small claims go wrong. Standard tradesman policies exclude theft from a vehicle overnight, typically between 21:00 and 06:00, unless the tools are in a locked building or a specified security box. Total limits run £5,000 to £20,000 with single article limits of £1,000 to £2,500, which is the line to read before you buy a £2,800 laser level.

The van: buy it or lease it

The tax treatment is the part that gets left out of the argument, and it is the part that moves the number.

A van bought outright is plant and machinery. The Annual Investment Allowance lets you write off 100% of the cost against your profit in the year you buy it, up to £1m, so a £22,000 van bought in a year where you make £48,000 of profit takes the profit to £26,000. Cars are excluded from the AIA; vans are not, and that distinction is worth thousands.

A lease is a rental deduction instead, spread across the term. It preserves cash in year one, which is exactly the year you have none, and it costs more over four years than buying. The honest framing is that leasing buys you working capital at a price, and the section below tells you how much working capital you actually need.

The bills that arrive whether you work or not

Two of those are not optional in the way they look. Making Tax Digital for Income Tax went live on 6 April 2026 for sole traders with qualifying income over £50,000, measured as turnover before expenses from the previous year's return, so digital records in compatible software and a quarterly update stopped being a choice for most working subcontractors. And an accountant who knows CIS pays for itself in the first year, because a sole trader recovers deductions as a credit on the Self Assessment return while a limited company has to recover them through the payroll scheme on the Employer Payment Summary, and claiming them through the Corporation Tax return instead gets a penalty.

Employers' liability at £5m adds roughly £480 a year the moment you put someone on the books or take on a labour-only subbie. A limited company adds the £50 confirmation statement and pushes the accountancy line to about £1,500.

The first invoice is not the first money

Here is a single month's application for a second-fix carpenter, worked all the way through.

The application is £6,400. Of that, £1,150 is materials you bought and are recharging. The CIS deduction only bites on labour: the direct cost of materials comes out of the base before the percentage is applied.

Unregistered, the deduction is 30% of the same £5,250, which is £1,575, so the free registration is worth £525 on this one application. Four applications in and that is £2,100 you have handed HMRC for nothing.

Now the timing. Under the Scheme for Construction Contracts (England and Wales) Regulations 1998, which fills the gap where a contract is silent, the relevant period is 28 days, payment becomes due 7 days after the end of that period or the making of your claim, and the final date for payment is 17 days after the due date. That is 24 days after the period closes. Plenty of subcontracts negotiate longer, and 45 days is common, which is what the month by month below assumes.

Four months of full-time work. £25,600 applied for. £10,700 received. Still £6,075 down, with the deepest point at the end of month two at £9,643.

That is the number to have behind you before you hand in your notice: about £10,000, or a facility for it, on a job that is going well with a main contractor who pays on time. Half of it is not lost, it is lent. £2,100 of CIS has been deducted from the two payments that landed and comes back to you through your Self Assessment return.

What shortens the hole

Register for CIS before the first payment, not after it. It is free, it takes minutes, and the arithmetic above puts a number on the delay.

Read the payment dates in the subcontract rather than assuming them. If the contract has no adequate mechanism, the Scheme's 24 days apply instead of the 45 you were braced for, and that is three weeks of working capital you did not know you had.

Bill the lateness. The Late Payment of Commercial Debts (Interest) Act 1998 gives you simple statutory interest at 8% over the Bank of England base rate, which has stood at 3.75% since 18 December 2025, so 11.75% today, plus a fixed sum under section 5A of £40 on debts under £1,000, £70 up to £9,999.99 and £100 at £10,000 and above. It applies whether or not the invoice mentions it.

Aim at gross payment status in year two. The turnover test for a sole trader is £30,000 of net construction turnover excluding VAT and materials, which the carpenter above clears comfortably. Passing it takes the deduction to 0% and hands you back the whole £1,050 a month at the point you earn it.

What an hour has to earn

Work the standing costs backwards and the day rate stops being a matter of opinion.

Take 46 working weeks, subtract the weather days, the quoting and the chasing, and 200 chargeable days is a realistic year. The £8,754 of standing cost spread over 200 days is £43.77 a day, or £5.47 an hour, before you have bought a screw or paid a penny of tax.

Now the tax. A sole trader pays income tax at 20% above the £12,570 personal allowance and Class 4 National Insurance at 6% on the same slice up to £50,270, then 40% and 2% above it. To take home £45,000 you need £58,084 of profit. Add the £8,754 of overhead and you need £66,838 of labour turnover, which over 200 days is £334 a day, or £41.77 an hour.

Run it the other way and it bites harder. A skilled trade billing £250 a day for 200 days turns over £50,000 of labour, which after the £8,754 of overhead is £41,246 of profit and £33,790 in your hand once income tax and Class 4 have gone. That is the whole case for pricing off your own cost base rather than off what the last firm paid you.

Two figures to hold alongside that. Add the materials you recharge and the carpenter above is turning over roughly £80,600, close enough to the £90,000 rolling twelve month VAT registration threshold that one busy year takes you over it. And if you work in Scotland the higher rate is 42% and starts at £43,662 rather than £50,270, so the same profit is taxed harder and the day rate has to answer for it.

What it costs

There is no monthly subscription on AEC Stack. The platform fee is 2.5% of each invoice processed through the platform, collected on the payment due date, so it costs nothing in the months before your first application is paid, which are the months this page is about. Your rates and your margin stay yours: the invoicing splits labour from materials so the CIS deduction lands on the right base, totals the deductions by contractor as they happen, and dates every application against the payment terms in your subcontract so you can see the money before it arrives.

Sit down with an accountant once your first full quarter is in, with the figures already totalled rather than in a carrier bag, and the meeting costs you an hour instead of a fee.

Put your own figures in before you commit to a rate. The CIS deduction calculator splits labour from materials and shows you what a year of deductions does to your cash, which is the half of this that rarely gets priced in advance.