New service launches to help businesses and contractors understand IR35

A new specialist service has launched to help UK businesses and contractors understand IR35 and the off-payroll working rules.

IR35 Update brings together practical guides, news, case updates and tools covering one of the more complicated areas of the UK contracting market.

IR35 applies where someone works through their own limited company or another intermediary, but the relationship resembles one of employment.

For businesses, the rules can affect how contractors are hired, who is responsible for deciding their tax status and, in some cases, who carries the risk if the decision is wrong.

The rules have become much more important since responsibility for making status decisions moved to public sector bodies and, later, medium and large private-sector organisations.

IR35 Update editor James Leckie said:

“A lot of businesses use contractors without necessarily having a detailed understanding of IR35 until they actually have to make a status decision.

“The aim of the site is to explain the rules in plain English, while still giving people enough detail to understand why a particular arrangement may fall inside or outside IR35.”

The site covers areas including contractor status, working practices, substitution, control, Status Determination Statements and the responsibilities of clients, agencies and contractors.

It also includes practical tools designed to help users work through common IR35 questions.

Why IR35 matters to businesses

IR35 can affect both the cost and structure of a contractor engagement.

A business may decide to engage a contractor through their limited company, put them onto payroll, or require them to work through an umbrella company.

The tax treatment can differ considerably between those arrangements.

For example, a contractor charging £500 a day for 220 days would have annual contract income of around £110,000.

If the engagement falls inside IR35, PAYE Income Tax and National Insurance come into play, alongside employer’s National Insurance. At that level of income, the overall difference compared with an outside-IR35 limited company arrangement can amount to many thousands of pounds over a year.

That can influence the rate a contractor is willing to accept and the total cost to the client.

Leckie added:

“IR35 is not just a tax issue for contractors. It can affect hiring decisions, contract rates and the way a business structures its flexible workforce.

“For many companies, the important thing is to understand the issue before the contract starts rather than trying to sort it out afterwards.”

A growing area of compliance

The rules can become particularly relevant for businesses that use specialist contractors in areas such as IT, engineering, finance and consultancy.

Larger organisations may need to assess a contractor’s status and issue a formal Status Determination Statement explaining the decision.

Smaller businesses can also encounter IR35 through contractors, agencies and supply chains, even where the formal responsibility for deciding status sits elsewhere.

IR35 Update has been launched as a dedicated resource for businesses and contractors who want clearer guidance on how the rules work in practice.