法ほう定てい耐たい用よう年ねん数すう

noun

statutory useful life

Legal and accounting term for the number of years over which an asset is depreciated for tax purposes, as specified by law.

• この機き械かいの法ほう定てい耐たい用よう年ねん数すうは10年ねんです。

  The statutory useful life of this machine is 10 years.