Section 61 of the Internal Revenue Code defines "gross income," the starting point for determining which items of income are taxable for federal income tax purposes in the United States. Section 61 states that "[e]xcept as otherwise provided in this subtitle, gross income means all income from whatever source derived [. .. ]". The United States Supreme Court has interpreted this to mean that Congress intended to express its full power to tax incomes to the extent that such taxation is permitted under Article I, Section 8, Clause 1 of the Constitution of the United States and under the Constitution's Sixteenth Amendment.
For federal income tax purposes, the doctrine of constructive receipt is used to determine when a cash-basis taxpayer has received gross income. A taxpayer is subject to tax in the current year if he or she has unfettered control in determining when items of income will or should be paid. Unlike actual receipt, constructive receipt does not require physical possession of the item of income in question.
Commissioner v. Duberstein, 363 U.S. 278 (1960), was a United States Supreme Court case from 1960 dealing with the exclusion of "the value of property acquired by gift" from the gross income of an income taxpayer.
Helvering v. Horst, 311 U.S. 112 (1940), is an opinion of the United States Supreme Court which further developed the “fruit-and-tree” metaphor established in Lucas v. Earl. Horst is the leading case that applies the assignment of income doctrine to income from property.
Zaninovich v. Commissioner, 616 F.2d 429, is a United States court case about the deductibility of advance payments for tax purposes.
The Doctrine of Cash Equivalence states that the U.S. Federal income tax law treats certain non-cash payment transactions like cash payment transactions for federal income tax purposes. The doctrine is used most often for deciding when cash method taxpayers are to include certain non-cash income items. Another doctrine often used when trying to determine the timing of the inclusion of income is the constructive receipt doctrine.
Flamingo Resort, Inc. v. United States, 664 F.2d 1387, was a case decided before the United States Court of Appeals for the Ninth Circuit that decided the question of when the right to receive income represented by "markers", or gambling credit lines, become "fixed" for tax purposes based on the "all events" test.
United States v. Gotcher, 401 F.2d 118, is a tax case from the United States Court of Appeals for the Fifth Circuit.
Zarin v. Commissioner, 916 F.2d 110 is a United States Third Circuit Court of Appeals decision concerning the cancellation of debt and the tax consequences for the borrower for U.S. federal income tax purposes.
Pevsner v. Commissioner, 628 F.2d 467 is a United States federal income tax case before the Fifth Circuit. It dealt with the issue of whether clothes purchased solely for use at work could be treated as a business expense deduction on a taxpayer's return.
Commissioner v. Boylston Market Association, 131 F.2d 966 was a taxation case decided by the United States Court of Appeals for the First Circuit.
Burnet v. Logan, 283 U.S. 404 (1931), was a case before the United States Supreme Court.
In Kenan v. Commissioner, 114 F. 2d 217, the United States Court of Appeals for the Second Circuit provided a broad definition of the term "sale or exchange." The Kenan court reviewed the Commissioner's finding of a $367,687.12 deficiency in the income taxes of the trustees. The trustees or taxpayers contended "that the delivery of the securities of the trust estate to the legatee was a donative disposition of property. .. and that no gain was thereby realized." The court pointed out that "the trustees had the power to determine whether the claim should be satisfied [in cash or securities]." Thus, "[i]f it were satisfied by a cash payment securities might have been sold on which. .. a taxable gain would necessarily have been realized." The court found that "[t]he word 'exchange' does not necessarily have the connotation of a bilateral agreement which may be said to attach to the word 'sale.'" The court then held that the trustees or taxpayers had realized a gain when they used the securities to satisfy the claim on the estate.
Grynberg v. Commissioner, 83 T.C. 255 (1984) was a case in which the United States Tax Court held that one taxpayer's prepaid business expenses were not ordinary and necessary expenses of the years in which they were made, and therefore the prepayments were not tax deductible. Taxpayers in the United States often seek to maximize their income and decrease their tax liability by prepaying deductible expenses and taking a deduction earlier rather than in a later tax year.
Schlude v. Commissioner, 372 U.S. 128 (1963), is a decision by the United States Supreme Court in which the Court held that, under the accrual method, taxpayers must include as income in a particular year advance payments by way of cash, negotiable notes, and contract installments falling due but remaining unpaid during that year. In doing so, the Court tossed aside the matching principle in favor of the earlier-of test.
Artnell Company v. Commissioner, 400 F.2d 981 is a decision by the 7th Circuit Court of Appeals, in which the court, distinguishing from the holding in Schlude v. Commissioner, held that accrual method taxpayers are not required to include prepayments in gross income when there is certainty as to when performance would occur.
Warren Jones Company v. Commissioner of Internal Revenue, 524 F.2d 788 was a taxation decision by the United States Court of Appeals for the Ninth Circuit.
In the United States, the question whether any compensation plan is qualified or non-qualified is primarily a question of taxation under the Internal Revenue Code (IRC). Any business prefers to deduct its expenses from its income, which will reduce the income subject to taxation. Expenses which are deductible ("qualified") have satisfied tests required by the IRC. Expenses which do not satisfy those tests ("non-qualified") are not deductible; even though the business has incurred the expense, the amount of that expenditure remains as part of taxable income. In most situations, any business will attempt to satisfy the requirements so that its expenditures are deductible business expenses.
Tax protesters in the United States advance a number of constitutional arguments asserting that the imposition, assessment and collection of the federal income tax violates the United States Constitution. These kinds of arguments, though related to, are distinguished from statutory and administrative arguments, which presuppose the constitutionality of the income tax, as well as from general conspiracy arguments, which are based upon the proposition that the three branches of the federal government are involved together in a deliberate, on-going campaign of deception for the purpose of defrauding individuals or entities of their wealth or profits. Although constitutional challenges to U.S. tax laws are frequently directed towards the validity and effect of the Sixteenth Amendment, assertions that the income tax violates various other provisions of the Constitution have been made as well.
Estate of Sydney J. Carter v. Commissioner of Internal Revenue, 453 F.2d 61, was a United States Federal income tax case decided by Judge Henry Friendly of the Second Circuit Court.
