U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 26Chapter IPart 1 - PART 1—INCOME TAXES (CONTINUED)

COMPUTATION OF TAXABLE INCOME (CONTINUED)
ITEMIZED DEDUCTIONS FOR INDIVIDUALS AND CORPORATIONS (CONTINUED)
§ 1.170-3 - Contributions or gifts by corporations (before amendment by Tax Reform Act of 1969).
§ 1.170A-1 - Charitable, etc., contributions and gifts; allowance of deduction.
§ 1.170A-2 - Amounts paid to maintain certain students as members of the taxpayer's household.
§ 1.170A-3 - Reduction of charitable contribution for interest on certain indebtedness.
§ 1.170A-4 - Reduction in amount of charitable contributions of certain appreciated property.
§ 1.170A-4A - Special rule for the deduction of certain charitable contributions of inventory and other property.
§ 1.170A-5 - Future interests in tangible personal property.
§ 1.170A-6 - Charitable contributions in trust.
§ 1.170A-7 - Contributions not in trust of partial interests in property.
§ 1.199A-2 - Determination of W-2 wages and unadjusted basis immediately after acquisition of qualified property.
§ 1.170A-8 - Limitations on charitable deductions by individuals.
§ 1.199A-3 - Qualified business income, qualified REIT dividends, and qualified PTP income.
§ 1.199A-4 - Aggregation.
§ 1.199A-5 - Specified service trades or businesses and the trade or business of performing services as an employee.
§ 1.199A-6 - Relevant passthrough entities (RPEs), publicly traded partnerships (PTPs), trusts, and estates.
§ 1.199A-7 - Section 199A(a) Rules for Cooperatives and their patrons.
§ 1.199A-8 - Deduction for income attributable to domestic production activities of specified agricultural or horticultural cooperatives.
§ 1.199A-9 - Domestic production gross receipts.
§ 1.199A-10 - Allocation of cost of goods sold (COGS) and other deductions to domestic production gross receipts (DPGR), and other rules.
§ 1.199A-11 - Wage limitation for the section 199A(g) deduction.
§ 1.170A-9 - Definition of section 170(b)(1)(A) organization.
§ 1.199A-12 - Expanded affiliated groups.
§ 1.170A-10 - Charitable contributions carryovers of individuals.
§ 1.170A-11 - Limitation on, and carryover of, contributions by corporations.
§ 1.170A-12 - Valuation of a remainder interest in real property for contributions made after July 31, 1969.
§ 1.170A-13 - Recordkeeping and return requirements for deductions for charitable contributions.
§ 1.170A-14 - Qualified conservation contributions.
§ 1.170A-15 - Substantiation requirements for charitable contribution of a cash, check, or other monetary gift.
§ 1.170A-16 - Substantiation and reporting requirements for noncash charitable contributions.
§ 1.170A-17 - Qualified appraisal and qualified appraiser.
§ 1.170A-18 - Contributions of clothing and household items.
§ 1.171-1 - Bond premium.
§ 1.171-2 - Amortization of bond premium.
§ 1.171-3 - Special rules for certain bonds.
§ 1.171-4 - Election to amortize bond premium on taxable bonds.
§ 1.171-5 - Effective date and transition rules.
§ 1.172-1 - Net operating loss deduction.
§ 1.172-2 - Net operating loss in case of a corporation.
§ 1.172-3 - Net operating loss in case of a taxpayer other than a corporation.
§ 1.172-4 - Net operating loss carrybacks and net operating loss carryovers.
§ 1.172-5 - Taxable income which is subtracted from net operating loss to determine carryback or carryover.
§ 1.172-6 - Illustration of net operating loss carrybacks and carryovers.
§ 1.172-7 - Joint return by husband and wife.
§ 1.172-8 - Net operating loss carryovers for regulated transportation corporations.
§ 1.172-9 - Election with respect to portion of net operating loss attributable to foreign expropriation loss.
§ 1.172-10 - Net operating losses of real estate investment trusts.
§ 1.172-13 - Product liability losses.
§ 1.173-1 - Circulation expenditures.
§ 1.174-1 - Research and experimental expenditures; in general.
§ 1.174-2 - Definition of research and experimental expenditures.
§ 1.174-3 - Treatment as expenses.
§ 1.174-4 - Treatment as deferred expenses.
§ 1.175-1 - Soil and water conservation expenditures; in general.
§ 1.175-2 - Definition of soil and water conservation expenditures.
§ 1.175-3 - Definition of “the business of farming.”
§ 1.175-4 - Definition of “land used in farming.”
§ 1.175-5 - Percentage limitation and carryover.
§ 1.175-6 - Adoption or change of method.
§ 1.175-7 - Allocation of expenditures in certain circumstances.
§ 1.178-1 - Depreciation or amortization of improvements on leased property and cost of acquiring a lease.
§ 1.179-0 - Table of contents for section 179 expensing rules.
§ 1.179-1 - Election to expense certain depreciable assets.
§ 1.179-2 - Limitations on amount subject to section 179 election.
§ 1.179-3 - Carryover of disallowed deduction.
§ 1.179-4 - Definitions.
§ 1.179-5 - Time and manner of making election.
§ 1.179-6 - Effective/applicability dates.
§ 1.179A-1 - [Reserved]
§ 1.179B-1T - Deduction for capital costs incurred in complying with Environmental Protection Agency sulfur regulations (temporary).
§ 1.179C-1 - Election to expense certain refineries.
§§ 1.179D-1-1.179D-2 - §[Reserved]
§ 1.179D-3 - Rules relating to the increased deduction for prevailing wage and apprenticeship.
§ 1.180-1 - Expenditures by farmers for fertilizer, etc.
§ 1.180-2 - Time and manner of making election and revocation.
§ 1.181-0 - Table of contents.
§ 1.181-1 - Deduction for qualified film and television production costs.
§ 1.181-2 - Election to deduct production costs.
§ 1.181-3 - Qualified film or television production.
§ 1.181-4 - Special rules.
§ 1.181-5 - Examples.
§ 1.181-6 - Effective/applicability date.
§ 1.182-1 - Expenditures by farmers for clearing land; in general.
§ 1.182-2 - Definition of “the business of farming.”
§ 1.182-3 - Definition, exceptions, etc., relating to deductible expenditures.
§ 1.182-4 - Definition of “land suitable for use in farming”, etc.
§ 1.182-5 - Limitation.
§ 1.182-6 - Election to deduct land clearing expenditures.
§ 1.183-1 - Activities not engaged in for profit.
§ 1.183-2 - Activity not engaged in for profit defined.
§ 1.183-3 - Election to postpone determination with respect to the presumption described in section 183(d). [Reserved]
§ 1.183-4 - Taxable years affected.
§ 1.186-1 - Recoveries of damages for antitrust violations, etc.
§ 1.187-1 - Amortization of certain coal mine safety equipment.
§ 1.187-2 - Definitions.
§ 1.188-1 - Amortization of certain expenditures for qualified on-the-job training and child care facilities.
§ 1.190-1 - Expenditures to remove architectural and transportation barriers to the handicapped and elderly.
§ 1.190-2 - Definitions.
§ 1.190-3 - Election to deduct architectural and transportation barrier removal expenses.
§ 1.193-1 - Deduction for tertiary injectant expenses.
§ 1.194-1 - Amortization of reforestation expenditures.
§ 1.194-2 - Amount of deduction allowable.
§ 1.194-3 - Definitions.
§ 1.194-4 - Time and manner of making election.
§ 1.195-1 - Election to amortize start-up expenditures.
§ 1.195-2 - Technical termination of a partnership.
§ 1.197-0 - Table of contents.
§ 1.197-1T - Certain elections for intangible property (temporary).
§ 1.197-2 - Amortization of goodwill and certain other intangibles.
§ 1.199A-0 - Table of contents.
§ 1.199A-1 - Operational rules.

ADDITIONAL ITEMIZED DEDUCTIONS FOR INDIVIDUALS
§ 1.211-1 - Allowance of deductions.
§ 1.212-1 - Nontrade or nonbusiness expenses.
§ 1.213-1 - Medical, dental, etc., expenses.
§ 1.215-1 - Periodic alimony, etc., payments.
§ 1.215-1T - Alimony, etc., payments (temporary).
§ 1.216-1 - Amounts representing taxes and interest paid to cooperative housing corporation.
§ 1.216-2 - Treatment as property subject to depreciation.
§ 1.217-1 - Deduction for moving expenses paid or incurred in taxable years beginning before January 1, 1970.
§ 1.217-2 - Deduction for moving expenses paid or incurred in taxable years beginning after December 31, 1969.
§ 1.219-1 - Deduction for retirement savings.
§ 1.219-2 - Definition of active participant.
§ 1.221-1 - Deduction for interest paid on qualified education loans after December 31, 2001.
§ 1.221-2 - Deduction for interest due and paid on qualified education loans before January 1, 2002.

SPECIAL DEDUCTIONS FOR CORPORATIONS
§ 1.241-1 - Allowance of special deductions.
§ 1.242-1 - Deduction for partially tax-exempt interest.
§ 1.243-1 - Deduction for dividends received by corporations.
§ 1.243-2 - Special rules for certain distributions.
§ 1.243-3 - Certain dividends from foreign corporations.
§ 1.243-4 - Qualifying dividends.
§ 1.243-5 - Effect of election.
§ 1.245-1 - Dividends received from certain foreign corporations.
§§ 1.245A-1—1.245A-4 - §[Reserved]
§ 1.245A-5 - Limitation of section 245A deduction and section 954(c)(6) exception.
§ 1.245A-6 - Coordination of extraordinary disposition and disqualified basis rules.
§ 1.245A-7 - Coordination rules for simple cases.
§ 1.245A-8 - Coordination rules for complex cases.
§ 1.245A-9 - Other rules and definitions.
§ 1.245A-10 - Examples.
§ 1.245A-11 - Applicability dates.
§ 1.245A(d)-1 - Disallowance of foreign tax credit or deduction.
§ 1.245A(e)-1 - Special rules for hybrid dividends.
§ 1.246-1 - Deductions not allowed for dividends from certain corporations.
§ 1.246-2 - Limitation on aggregate amount of deductions.
§ 1.246-3 - Exclusion of certain dividends.
§ 1.246-4 - Dividends from a DISC or former DISC.
§ 1.246-5 - Reduction of holding periods in certain situations.
§ 1.247-1 - Deduction for dividends paid on preferred stock of public utilities.
§ 1.248-1 - Election to amortize organizational expenditures.
§ 1.249-1 - Limitation on deduction of bond premium on repurchase.
§ 1.250-0 - Table of contents.
§ 1.250-1 - Introduction.
§ 1.250(a)-1 - Deduction for foreign-derived intangible income (FDII) and global intangible low-taxed income (GILTI).
§ 1.250(b)-1 - Computation of foreign-derived intangible income (FDII).
§ 1.250(b)-2 - Qualified business asset investment (QBAI).
§ 1.250(b)-3 - Foreign-derived deduction eligible income (FDDEI) transactions.
§ 1.250(b)-4 - Foreign-derived deduction eligible income (FDDEI) sales.
§ 1.250(b)-5 - Foreign-derived deduction eligible income (FDDEI) services.
§ 1.250(b)-6 - Related party transactions.

ITEMS NOT DEDUCTIBLE
§ 1.261-1 -
§ 1.262-1 - Personal, living, and family expenses.
§ 1.263(a)-0 - Outline of regulations under section 263(a).
§ 1.263(a)-1 - Capital expenditures; in general.
§ 1.263(a)-2 - Amounts paid to acquire or produce tangible property.
§ 1.263(a)-3 - Amounts paid to improve tangible property.
§ 1.263(a)-4 - Amounts paid to acquire or create intangibles.
§ 1.263(a)-5 - Amounts paid or incurred to facilitate an acquisition of a trade or business, a change in the capital structure of a business entity, and certain other transactions.
§ 1.263(a)-6 - Election to deduct or capitalize certain expenditures.
§ 1.263(b)-1 - Expenditures for advertising or promotion of good will.
§ 1.263(c)-1 - Intangible drilling and development costs in the case of oil and gas wells.
§ 1.263(e)-1 - Expenditures in connection with certain railroad rolling stock.
§ 1.263(f)-1 - Reasonable repair allowance.
§ 1.263A-0 - Outline of regulations under section 263A.
§ 1.263A-1 - Uniform capitalization of costs.
§ 1.263A-2 - Rules relating to property produced by the taxpayer.
§ 1.263A-3 - Rules relating to property acquired for resale.
§ 1.263A-4 - Rules for property produced in a farming business.
§ 1.263A-5 - Exception for qualified creative expenses incurred by certain free-lance authors, photographers, and artists. [Reserved]
§ 1.263A-6 - Rules for foreign persons. [Reserved]
§ 1.263A-7 - Changing a method of accounting under section 263A.
§ 1.263A-8 - Requirement to capitalize interest.
§ 1.263A-9 - The avoided cost method.
§ 1.263A-10 - Unit of property.
§ 1.263A-11 - Accumulated production expenditures.
§ 1.263A-12 - Production period.
§ 1.263A-13 - Oil and gas activities.
§ 1.263A-14 - Rules for related persons.
§ 1.263A-15 - Effective dates, transitional rules, and anti-abuse rule.
§ 1.264-1 - Premiums on life insurance taken out in a trade or business.
§ 1.264-2 - Single premium life insurance, endowment, or annuity contracts.
§ 1.264-3 - Effective date; taxable years ending after March 1, 1954, subject to the Internal Revenue Code of 1939.
§ 1.264-4 - Other life insurance, endowment, or annuity contracts.
§ 1.265-1 - Expenses relating to tax-exempt income.
§ 1.265-2 - Interest relating to tax exempt income.
§ 1.265-3 - Nondeductibility of interest relating to exempt-interest dividends.
§ 1.266-1 - Taxes and carrying charges chargeable to capital account and treated as capital items.
§ 1.267A-1 - Disallowance of certain interest and royalty deductions.
§ 1.267A-2 - Hybrid and branch arrangements.
§ 1.267A-3 - Income inclusions and amounts not treated as disqualified hybrid amounts.
§ 1.267A-4 - Disqualified imported mismatch amounts.
§ 1.267A-5 - Definitions and special rules.
§ 1.267A-6 - Examples.
§ 1.267A-7 - Applicability dates.
§ 1.267(a)-1 - Deductions disallowed.
§ 1.267(a)-2T - Temporary regulations; questions and answers arising under the Tax Reform Act of 1984 (temporary).
§ 1.267(a)-3 - Deduction of amounts owed to related foreign persons.
§ 1.267(b)-1 - Relationships.
§ 1.267(c)-1 - Constructive ownership of stock.
§ 1.267(d)-1 - Amount of gain where loss previously disallowed.
§ 1.267(d)-2 - Effective/applicability dates.
§ 1.267(f)-1 - Controlled groups.
§ 1.268-1 - Items attributable to an unharvested crop sold with the land.
§ 1.269-1 - Meaning and use of terms.
§ 1.269-2 - Purpose and scope of section 269.
§ 1.269-3 - Instances in which section 269(a) disallows a deduction, credit, or other allowance.
§ 1.269-4 - Power of district director to allocate deduction, credit, or allowance in part.
§ 1.269-5 - Time of acquisition of control.
§ 1.269-6 - Relationship of section 269 to section 382 before the Tax Reform Act of 1986.
§ 1.269-7 - Relationship of section 269 to sections 382 and 383 after the Tax Reform Act of 1986.
§ 1.269B-1 - Stapled foreign corporations.
§ 1.270-1 - Limitation on deductions allowable to individuals in certain cases.
§ 1.271-1 - Debts owed by political parties.
§ 1.272-1 - Expenditures relating to disposal of coal or domestic iron ore.
§ 1.273-1 - Life or terminable interests.
§ 1.274-1 - Disallowance of certain entertainment, gift and travel expenses.
§ 1.274-2 - Disallowance of deductions for certain expenses for entertainment, amusement, recreation, or travel.
§ 1.274-3 - Disallowance of deduction for gifts.
§ 1.274-4 - Disallowance of certain foreign travel expenses.
§ 1.274-5 - Substantiation requirements.
§ 1.274-5T - Substantiation requirements (temporary).
§ 1.274-6 - Expenditures deductible without regard to trade or business or other income producing activity.
§ 1.274-6T - Substantiation with respect to certain types of listed property for taxable years beginning after 1985 (temporary).
§ 1.274-7 - Treatment of certain expenditures with respect to entertainment-type facilities.
§ 1.274-8 - Effective/applicability date.
§ 1.274-9 - Entertainment provided to specified individuals.
§ 1.274-10 - Special rules for aircraft used for entertainment.
§ 1.274-11 - Disallowance of deductions for certain entertainment, amusement, or recreation expenditures paid or incurred after December 31, 2017.
§ 1.274-12 - Limitation on deductions for certain food or beverage expenses paid or incurred after December 31, 2017.
§ 1.274-13 - Disallowance of deductions for certain qualified transportation fringe expenditures.
§ 1.274-14 - Disallowance of deductions for certain transportation and commuting benefit expenditures.
§ 1.275-1 - Deduction denied in case of certain taxes.
§ 1.276-1 - Disallowance of deductions for certain indirect contributions to political parties.
§ 1.278-1 - Capital expenditures incurred in planting and developing citrus and almond groves.
§ 1.279-1 - General rule; purpose.
§ 1.279-2 - Amount of disallowance of interest on corporate acquisition indebtedness.
§ 1.279-3 - Corporate acquisition indebtedness.
§ 1.279-4 - Special rules.
§ 1.279-5 - Rules for application of section 279(b).
§ 1.279-6 - Application of section 279 to certain affiliated groups.
§ 1.279-7 - Effect on other provisions.
§ 1.280B-1 - Demolition of structures.
§ 1.280C-1 - Disallowance of certain deductions for wage or salary expenses.
§ 1.280C-3 - Disallowance of certain deductions for qualified clinical testing expenses when section 28 credit is allowable.
§ 1.280C-4 - Credit for increasing research activities.
§ 1.280F-1T - Limitations on investment tax credit and recovery deductions under section 168 for passenger automobiles and certain other listed property; overview of regulations (temporary).
§ 1.280F-2T - Limitations on recovery deductions and the investment tax credit for certain passenger automobiles (temporary).
§ 1.280F-3T - Limitations on recovery deductions and the investment tax credit when the business use percentage of listed property is not greater than 50 percent (temporary).
§ 1.280F-4T - Special rules for listed property (temporary).
§ 1.280F-5T - Leased property (temporary).
§ 1.280F-6 - Special rules and definitions.
§ 1.280F-7 - Property leased after December 31, 1986.
§ 1.280G-1 - Golden parachute payments.
§ 1.280H-0T - Table of contents (temporary).
§ 1.280H-1T - Limitation on certain amounts paid to employee-owners by personal service corporations electing alternative taxable years (temporary).

TAXABLE YEARS BEGINNING PRIOR TO JANUARY 1, 1986
§ 1.274-5A - Substantiation requirements.

TERMINAL RAILROAD CORPORATIONS AND THEIR SHAREHOLDERS
§ 1.281-1 - In general.
§ 1.281-2 - Effect of section 281 upon the computation of taxable income.
§ 1.281-3 - Definitions.
§ 1.281-4 - Taxable years affected.
§§ 1.282-1.300 - §[Reserved]
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