William J. Brennan, Jr., Knetsch v. United States — Opinion of the Court
“ We look in vain.Provisions denying deductions for amounts paid on indebtedness incurred to purchase or carry insurance contracts are not new in the revenue acts. A provision applicable to all annuities, but not to life insurance or endowment contracts, was in the statute from 1932 to 1934, 47 Stat. 179. It was added at a time when Congress was developing a policy to deny a deduction for interest allocable to tax-exempt income ”
