A former chief of a taxation office was found to have hidden about 30 million yen in income for seven years through 2003, informed sources said Saturday.

The unidentified man who now runs a certified tax accountant office in Hamamatsu, Shizuoka Prefecture, failed to declare income totaling some 50 million yen comprising the hidden income plus 20 million yen that was not reported due to erroneous accounting, the sources said.

After investigating the suspected tax evasion, the Nagoya Regional Taxation Bureau appears to have slapped punitive fines of roughly 20 million yen on him, they said.

The man retired from public service in 1992 after serving as a senior instructor at the National Taxation College and chief of taxation offices in Nagoya and Hamamatsu.