The tax regime for property authorised investment funds (PAIFs) applies to UK open-ended investment companies (OEICs) which satisfy a number of conditions. In certain circumstances, a failure to meet these conditions can lead to expulsion from the PAIF regime. PAIFs can, of course, also elect to leave the regime of their own volition. The precise effect of breaching the PAIF conditions depends on the particular condition breached and, in some cases, whether it has been breached before. The PAIF conditions are covered in detail in Practice Note: PAIFs—the conditions. This Practice Note looks at: • what happens when one or more conditions of the PAIF regime are breached, and • the tax effects of an exit from the PAIF regime For a summary overview of the PAIF regime as a whole, see Practice Note: Tax and property funds—overview. For the tax treatment of PAIFs and their investors, as well as certain related compliance obligations, see Practice Note: PAIFs—tax treatment of the fund and its investors. The tax rules for PAIFs are