Debate.
The estate tax is a recurring source of contentious political debate and political football. Generally the debate breaks down between a side which opposes any tax on inheritance, and another which considers it good policy.
Arguments in support.
Proponents of the estate tax argue that large inheritances (currently those over $5 million) are a progressive and fair source of government funding. Removing the estate tax, they argue, favors only the very wealthy and leaves a greater share of the total tax burden on working taxpayers. Proponents further argue that campaigns to repeal the tax rely on public confusion about the estate tax and about tax policy more generally. William Gale and Joel Slemrod give three reasons for taxing at the point of inheritance in their book Rethinking Estate and Gift Taxation. "First, the probate process may reveal information about lifetime economic well-being that is difficult to obtain in the course of enforcement of the income tax but is nevertheless relevant to societal notions of who should pay tax. Second, taxes imposed at death may have smaller disincentive effects on lifetime labor supply and saving than taxes that raise the same revenue (in present value terms) but are imposed during life. Third, if society does wish to tax lifetime transfers among adult households, it is difficult to see any time other than death at which to assess the total transfers made."
While death may be unpleasant to contemplate, there are good administrative, equity, and efficiency reasons to impose taxes at death, and the asserted costs appear to be overblown.
— William Gale and Joel Slemrod