Tax Legal Services · Primary-source case analysis

Crane: The Mortgage Counted Even Without Personal Assumption

By Aneeta Mishra and Timothy Chan

Published May 13, 2026 · Updated October 18, 2026

Decision: Crane v. Comm’r, 331 U.S. 1 (1947).

A $2,500 cash receipt was not the entire amount realized. The distinction matters when reconstructing the transaction from tax returns, valuation records and sale documents. Crane, 331 U.S. at 3–5, 11–16.

The sale transferred title, not only an accounting equity

Crane sold the apartment property for $3,000 cash subject to its mortgage and paid $500 in selling costs. Neither she nor the purchaser personally assumed the debt. The sale contract’s equity language did not change the Court’s conclusion that she conveyed the title to the property she had acquired and operated. Crane, 331 U.S. at 3–5, 12–13 n.33.

The principal counted differently from accrued interest

The Commissioner included $255,000 of mortgage principal plus $2,500 net cash, for $257,500 realized. He did not add all accrued interest to that figure: The opinion explains that the difference was a deductible interest item. Keeping principal, accrued interest, gross cash and sale expenses separate is necessary to reproduce the actual calculation. Crane, 331 U.S. at 4 & n.6, 14.

An unassumed mortgage could still provide a real benefit

The majority rejected a rule limited to money the seller physically received or a debt personally assumed. On these facts, transferring property subject to the mortgage gave the seller a benefit comparable to discharge of the mortgage or assumption of a personal debt. That explanation does not mean every transfer has the same tax treatment regardless of its facts. Crane, 331 U.S. at 12–14.

The Court expressly reserved different underwater-property problems

Footnote 37 identified a different possible problem involving property worth less than the mortgage and abandonment or transfer without additional cash. Footnote 42 separately reserved a hypothetical in which property was already worth less than its mortgage when inherited and later transferred for cash. These reservations describe the limits of the 1947 opinion; they are not a statement that later law left every such question open. Crane, 331 U.S. at 14 n.37, 15 n.42.

Key takeaways

• Separate mortgage principal, accrued interest, cash proceeds and sale expenses.
• Preserve whether debt was assumed and what property rights were conveyed.
• Do not substitute a zero-equity label for the actual gain calculation.
• Check later governing law before applying the opinion to an underwater transfer.