Welcome to the IR35 centre

The term IR35 relates to legislation intended to apply a PAYE and NIC charge on earnings from a company or partnership which is termed an "intermediary" by the rules.

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An introduction to IR35

For many years, people leaving jobs to become self-employed were advised to instead set up one man companies to provide their services. One reason for this might be the security offered by limited liability, but in many cases the use of a 'personal service company' was to create the opportunity for some quite substantial savings, particularly of national insurance contributions (NIC's).

IR35 - Who is caught by these rules?

The IR35 rules aim to catch anyone who, by placing an intermediary between himself and his employer, gains some tax (including National Insurance Contributions) advantage.

IR35 - How can I avoid it?

There are several ways you can avoid IR35 - although they may not be palatable to you, or your customers.

IR35 - The problem with deemed payments

If you have established that some of your work will be caught by IR35 and that PAYE tax and National Insurance will have to be accounted for on a deemed salary payment at 5 April 2009.

IR35 and cessations

In this series of IR35 guides you will be able to consider the impact of IR35 and the effect it has on those workers providing their services through intermediaries.

IR35 - Important dates

Details of the important dates in relation to IR35.

Personal service companies

The legislation known as IR35 is intended to tackle the avoidance of tax and national insurance contributions through the use of intermediaries such as service companies or partnerships.

Going into the construction industry

There are special tax rules affecting the construction industry, which are designed to ensure that tax is paid by workers in the sector whether they are employed or self employed.

Interest and tax payments

HM Revenue & Customs charges interest on underpayments of tax, and pays interest (repayment supplement) on overpayments. The rate of interest paid on overpaid tax is lower than the rate charged on underpayments, and interest rates are adjusted frequently in line with commercial interest rates.