Matching Arm's Length Transaction Concept Personal Expense Investment Expense Ability-to-Pay Concept Capital Recovery Concept Business Purpose Concept Wherewithal-to-Pay Concept Constructive Receipt Doctrine Claim of Right Doctrine Administrative Convenience A. No income is taxed until all capital previously invested in the asset is recovered. B. Income is considered received when it is credited to the taxpayer's account or made unconditionally available to the taxpayer. C. Income is subject to tax when it is received without restrictions as to its use or disposition. D. A concept which can operate to disallow tax deductions for losses incurred on sales made between taxpayers that are related to one another. E. A category of expenses that is specifically disallowed (with a few specific exceptions). F. Income should be recognized and a tax paid when the taxpayer has the resources to pay the tax. G. A concept that is fundamental to the progressive tax rate structure. H. To be deductible, an expenditure must be made for a business or economic purpose that is greater than any tax avoidance motive of the taxpayer. 1. Allows the omission of items from the tax base for which the costs of compliance exceeds the revenue generated. J. A type of deductible expenditure that embodies the profit motive requirement.