United States v. Cartwright

Background

A woman named Ethel B. Bennett died owning about 8,700 shares across three mutual funds managed by Investors Diversified Services. Her executor reported those shares at the fund redemption or net asset value on the estate tax return (about $124,400). The Treasury assessed a deficiency using a regulation that required valuation at the public offering or “asked” price (about $133,300), which includes a sales load. The estate sued after refund claims were denied; lower courts held the regulation invalid, and the Supreme Court took the case because courts were split on the issue.

Reasoning

The core question was whether the Treasury rule valuing mutual fund shares at the public offering price was a reasonable way to apply the estate tax law. Justice White’s majority said the rule was unrealistic and unreasonable. Mutual fund shares, the Court explained, are redeemable by the fund at net asset value, and the sales load in the public offering price is paid to an underwriter and not available to a holder seeking to realize value. The majority treated the buyer-seller market as including the original voluntary purchase terms and held that the only practical price an estate could obtain was the redemption/net asset price, so the regulation wrongly assigned a value the estate could not realize.

Real world impact

The decision means estates holding mutual fund shares—especially in funds with sales loads—cannot be taxed based on a public offering price that includes loads the estate cannot recover. The Court affirmed the lower courts’ rulings and invalidated Treas. Reg. §20.2031-8(b), reducing taxable values for similar estates going forward.

Dissents or concurrances

Justice Stewart, joined by the Chief Justice and Justice Rehnquist, dissented. He argued the Commissioner’s rule was a reasonable way to value the full bundle of rights in mutual fund shares and would have upheld the regulation.