Inheritances are tax free, regardless of amount. However, if the account starts to earn interest, your spouse must pay tax on the interest from the date of the inheritance.
A statutory method of depreciation allowing accelerated rates for most types of property used in business and income-producing activities during the years 1981 through 1986. It has been superseded by the modified accelerated cost recovery system (MACRS) for assets placed in service after 1986.