Philadelphia Park Amusement Co. operated an amusement park that was accessed via a bridge. The company entered into an arm's-length exchange with the City of Philadelphia: it transferred a bridge to the City and, in return, received a ten-year extension of its street railway franchise rights serving the park. After the exchange, the taxpayer treated the franchise extension as an intangible asset with a determinable, limited life and claimed annual amortization deductions based on its asserted cost. The Commissioner disallowed the deductions, arguing that the franchise extension had no ascertainable fair market value (and thus no amortizable basis). The taxpayer paid the assessed tax and sued for a refund in the Court of Claims. The controversy centered on how to determine the basis of the franchise extension received in the exchange and, correspondingly, whether the taxpayer could claim amortization deductions over its ten-year life.
In a taxable, arm's-length exchange of dissimilar properties, what is the proper measure of the tax basis of the property received—particularly where neither asset's fair market value is easily ascertainable—and may that basis be used to amortize an intangible with a determinable useful life?
For property acquired in a taxable exchange, the basis is its cost, which is the fair market value of the property received at the time of the exchange. If the fair market value of the property received cannot be reasonably ascertained, the fair market value of the property given up may be used as a proxy, because in an arm's-length exchange the two are presumptively equal. A basis must be determined; property is not treated as having no basis merely because valuation is difficult. Where the property received is an intangible with a limited, determinable life, that basis is amortizable ratably over its remaining term. See 1939 Code § 113(a) (now IRC § 1012) (basis equals cost) and the general principles later reflected in Treas. Reg. § 1.1012-1.
The basis of the franchise extension received in the exchange is its fair market value at the time of the exchange; if that value cannot be directly determined, the fair market value of the bridge transferred may be used because, in an arm's-length exchange, the two values are equal. The court rejected the government's contention that the franchise extension had no ascertainable value and remanded for a factual determination of fair market value so that the taxpayer's amortization deductions over the ten-year term could be properly computed.
The court began with the statutory premise that basis equals cost. In a cash purchase, cost is easy to identify—the cash paid. In an exchange, however, the "price" of the property received is the value of what is obtained in the swap. Because arm's-length parties rationally exchange items of equal value, the fair market value of the property received equals the fair market value of the property given up at the time of the exchange. While either side of the transaction may, in theory, be used to measure value, the court emphasized practicality: use the side whose value is more readily ascertainable, but do not abandon valuation merely because it is difficult. Rejecting the Commissioner's position that the franchise extension lacked ascertainable value, the court explained that intangible rights with limited terms can be valued by recognized appraisal methods (e.g., capitalization of expected earnings, discounted cash flow, comparable transactions, or other economic analyses). The court also declined to apply the exceptional "open transaction" doctrine, under which basis and gain recognition may be deferred where value cannot be determined, noting that doctrine is reserved for truly intractable valuation problems. Because the record did not contain sufficient evidence to fix a definite fair market value for either the bridge or the franchise extension as of the exchange date, the court remanded for further findings, instructing that the resulting fair market value would constitute the basis of the franchise and would be amortizable over its ten-year life.
Philadelphia Park is the classic authority for determining basis in property-for-property exchanges. It teaches that: (1) basis is anchored in fair market value at the time of exchange; (2) courts may select the more ascertainable side of the trade to fix value; (3) property is not deprived of a basis due to valuation difficulty; and (4) limited-life intangibles acquired in exchange are amortizable based on that basis. The case constrains the open transaction doctrine to genuine impossibility scenarios and undergirds modern rules in IRC § 1012 and related regulations. For law students, it frames how tax law resolves real-world valuation uncertainty and connects basis, realization, and cost recovery.
Philadelphia Park established the modern approach to basis when property is acquired through exchange: fix basis at the fair market value of the property received (or, if more ascertainable, the property given), recognizing that arm's-length trades equate values. That basis then governs cost recovery for assets like limited-life intangibles, ensuring that tax accounting reflects underlying economics even when market prices are not quoted. For students and practitioners, the case is a blueprint for handling valuation uncertainty, guiding evidence-gathering and expert analysis to support fair market value determinations. Its insistence that property cannot be treated as valueless simply because valuation is difficult remains a cornerstone of income tax law and resonates across transactions from intangibles to complex asset swaps.