Japanese tax authorities on Friday decided to dismiss an official in his 20s for defrauding a wealthy woman he was auditing of a large amount of cash and evading roughly ¥100 million ($631,600) in taxes on gambling winnings obtained with the stolen money, informed sources have said.

The official, at a tax office in Ibaraki Prefecture, was served with the disciplinary dismissal by the Kanto-Shinetsu Regional Taxation Bureau. Authorities referred the official to prosecutors on suspicion of fraud and filed a criminal complaint for violating the income tax law.

According to the sources, the official is suspected of defrauding the woman of a total of about ¥150 million over several years while he was working at a tax office in Saitama Prefecture.