Limited company IR35 rules – what is IR35?
IR35 legislation, sometimes called “intermediary legislation” or “off-payroll working legislation”, is a series of tests that HMRC applies to the nature of the working relationship between a client and a contractor using a limited company (sometimes called a personal service company).
There is no IR35 for dummies – it’s a complicated set of rules open to interpretation. It’s so complicated that even HMRC often get the interpretation of the rules wrong. In fact HMRC lose many of the cases they bring to the First Tier Tax Tribunal against contractors.
Historically contractors working through a limited company have paid considerably less tax than an employee doing the same type of work. The contractor isn’t the only one that gets a tax benefit by engaging a contractor. Because the contractor isn’t an employee, a client also does not have to pay National Insurance Employers’ Contributions on their fee.
With less tax being paid, the UK government sought to introduce IR35 as a way to get those tax revenues back. In essence, the legislation was designed to look at a contractors working practices and ensure that if they acted like an employee then they processed their payroll like an employee too, locking themselves out of the tax benefits they would have traditionally enjoyed.
Now that you know what IR35 is, you might be wondering what ‘’inside IR35’’ means (for public and private sectors). If the relationship between a contractor and a client is like that of an employer and employee in under the IR35 test, this would constitute a “contract inside IR35” arrangement.
In this case, a contractor must treat their entire payment in the Ltd Co as a “deemed salary” – in other words, they would have to pay taxes as if they were an employee on the full amount and not offset expenses or take dividends.
A “contract outside IR35” is a contract with a client which the IR35 rules deems is not similar to an employee-employer relationship. In this instance, the client would pay the value of the invoices issued into the contractor limited company’s account without any deduction for tax. Corporation tax would be paid on the work if the limited company made a profit during the year. The company would then process the salary (often small) through PAYE and pay any taxes due to HRMC directly with the remainder of the funds paid in dividends. The contractor would then pay personal taxes on any dividends withdrawn from the company, summarising the tax due on their self-assessment at the end of the year.
A contractor has a legal responsibility to declare whether the agreement they are working under is inside or outside of the IR35 rules, record it in the appropriate way, and pay the relevant tax.
When does IR35 apply?
IR35 applies when some or all of the above conditions apply to the working arrangements between a client and a contractor. Regardless of the governing contract, this situation would be in the scope of IR35. However, if there is sufficient independence as measured by these guidelines, the contract would be outside of IR35.
An “outside IR35” arrangement offers zero hours contract holiday pay and zero hours contract sick pay – in other words, if a contractor does not turn up for work, they won’t be paid.
Who decides IR35 status in the public sector and private sectors?
For contracts carried out for public sector bodies, the responsibility lies with the client to declare IR35 status and not with the contractor. Until April 2020, when the same rule comes in for contracts carried out for medium- and large-sized businesses, the responsibility to accurately declare IR35 is that of the contractor.
The IR35 status tests
For a contract with a client to be considered outside of IR35, the nature of the actual working relationship has to be more like two independent businesses dealing with each other rather than an employer-employee set up. Whereas once contractors pointed to the letter of their contract when arguing their case for being outside of IR35, HMRC will now primarily consider the actual working environment a contractor finds themselves in when deciding on IR35 status.
How to avoid IR35
A contractor should make sure that their working arrangements with their client (codified in their agreement) has most or all of the following features, but also that in practice these are maintained too:
- A client does not tell a contractor where or when they will work
- A client cannot object to a contractor sending in someone else to do the work and a client recognises that a contractor has the legal right to do so
- A contractor will work without direction and with minimal oversight from a client
- A contractor can refuse to perform a task not contained in the agreement
- A contractor can raise an invoice to perform a task not contained in the agreement
- A client can not object to a contractor taking a holiday nor can they dictate when this will happen
- A contractor is responsible for reimbursing a client or putting right a situation if caused by the quality or efficacy of a contractor’s work
- A contractor can choose what tools and equipment are needed to perform a task and it is the contractor who supplies them
- A contractor can end their agreement early with 30 days’ notice
- A contractor has no power to direct, discipline, appraise, manage, or supervise the client’s employees
How does IR35 affect contractor take home pay?
At time of writing, new tax laws for contractors mean that the difference in pay between a limited company contractor working outside IR35 and inside IR35 is significant.
Contractor take home pay outside IR35 | Contractor take home pay inside IR35 |
| Amount | | Amount |
Earnings | £65,750 | Earnings | £65,750 |
Income tax, National Insurance Employee Contributions, and dividend tax | £5,700.83 | Income tax and National Insurance | £15,683.56 |
Corporation tax | £10,151.17 | Corporation tax | £627.00 |
Employers’ NIC | £472.79 | Employers’ NIC | £6,551.48 |
Earnings after tax | £49,425.21 | Earnings after tax | £42,887.96 |
Additional tax under IR35 | £6,537.25 |