Several affiliates of Teikyo University have been penalized more than 2 billion yen by tax authorities for failing to declare about 6.5 billion yen in taxable income over several years, according to sources.

The private university in Tokyo is alleged to have solicited huge donations from parents of students taking the entrance exam for the school's faculty of medicine that were paid in advance via brokers, the sources said Monday.

The donations, estimated to have totaled about 2 billion yen a year, were deposited in an affiliate foundation's bank account and then divided between the university and its affiliates, the sources said.

The affiliate that held the money, Teikyo Ikuei Zaidan (Teikyo Ikuei Foundation), is headed by the wife of Shoichi Okinaga, president of Teikyo University, who is also the deputy chief of the foundation in Ehime Prefecture.

The university's affiliates, including the foundation, failed to declare about 6.5 billion yen in income over a period of seven years to March, the sources said.