In the case of G. & K. Manufacturing Co. v. Helvering, Commissioner of Internal Revenue in 1935, the U.S Supreme Court ruled on a tax dispute between the manufacturing company and the IRS commissioner Guy T. Helvering regarding deductions for losses incurred from sales to an insolvent subsidiary corporation owned by G&K's shareholders during years 1921-1923 . The court held that these transactions were not at arm’s length and thus did not qualify for deduction under Section 234(a)(4) of Revenue Act (1921). This section allows deductions only when there is a genuine debt created as a result of bona fide transaction reflecting true economic reality rather than mere paper losses arising out of prearranged plans lacking business purpose or substance beyond tax avoidance. The court noted that while it was legal for corporations to organize their affairs so as to minimize taxes, they could not create artificial losses through non-arm's-length transactions with related entities solely for this purpose. This decision reaffirmed principles established in earlier cases such as Gregory v.Helvering where courts looked beyond formality into actuality in determining legitimacy of claimed deductions thereby discouraging aggressive tax planning strategies involving controlled entities aimed at manipulating taxable income.

In the dissenting opinion for G. & K. Manufacturing Co. v. Helvering, Commissioner of Internal Revenue, 1935, Justice Stone argued that the majority's decision was inconsistent with previous rulings and interpretations of tax law by both Congress and the Court itself. He contended that a corporation should not be taxed on income derived from its own stock dividends because such income is essentially an internal transaction rather than actual profit or gain to the company; it does not increase their wealth nor provide them with any additional resources they can use or invest elsewhere in their business operations. The justice further asserted that this interpretation aligns more closely with economic realities as well as legal principles established in prior cases regarding taxation of corporate earnings and profits.