The eligibility of investors normally does alter the investment and borrowing restrictions applied to a non UCITS fund authorised by the Irish Financial Services Regulatory Authority. The Irish Financial Services Regulatory Authority will authorise a non UCITS fund as a Professional Investor fund if the minimum subscription is EUR 125,000 or more. In this type of fund some of the non-UCITS borrowing and investment restrictions may be disapplied at the discretion of the Financial Regulator.

The Financial Regulator Notice NU 12 deals with in detail the requirements for a professional investor fund.