The National Tax and Customs Administration (NAV) is investigating the 3,000 largest taxpayers based on risk factors, such as information of suspected irregularities, NAV said in response to a question on NAV checks on multinational companies to the daily Magyar Hírlap on Saturday.

NAV noted that it is no more obliged to investigate regularly the largest taxpayers – many of which are multinational companies – after a 2011 amendment to the respective legislation.

The tax authority has continued to investigate multinational companies which based on available information raise suspicion that they do not follow tax regulations. NAV aims at investigating the whole supply chain when examining multinational trading companies, the paper wrote citing NAV.

A law passed in 2003 required the tax authority to investigate 3,000 businesses with the largest tax payments on a regular basis in at least every three years. A 2011 amendment annuls the obligatory investigation from January 2012.