noun
penalty tax for understatement of income
A Japanese tax-law term for an additional tax imposed when a taxpayer underreports income. Used in official tax contexts.
税務調査で所得の過少申告が判明し、過少申告加算税が課された。
A tax audit revealed underreporting of income, and a penalty tax for understatement was imposed.
Compound of 過少 (understatement), 申告 (declaration), 加算 (addition), and 税 (tax). A modern legal term.