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Title 26

Displaying title 26, up to date as of 10/06/2026. Title 26 was last amended 10/06/2026.
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Title 26Internal RevenuePart / Section
Chapter IInternal Revenue Service, Department of the Treasury1 – 899
Subchapter AIncome Tax1 – 18
Part 1Income Taxes1.0-1 – 1.9300-1
Itemized Deductions for Individuals and Corporations1.161-1 – 1.169-4
§ 1.161-1Allowance of deductions.
§ 1.162-1Business expenses.
§ 1.162-2Traveling expenses.
§ 1.162-3Materials and supplies.
§ 1.162-4Repairs.
§ 1.162-5Expenses for education.
§ 1.162-7Compensation for personal services.
§ 1.162-8Treatment of excessive compensation.
§ 1.162-9Bonuses to employees.
§ 1.162-10Certain employee benefits.
§ 1.162-10TQuestions and answers relating to the deduction of employee benefits under the Tax Reform Act of 1984; certain limits on amounts deductible (temporary).
§ 1.162-11Rentals.
§ 1.162-12Expenses of farmers.
§ 1.162-13Depositors' guaranty fund.
§ 1.162-14Expenditures for advertising or promotion of good will.
§ 1.162-15Contributions, dues, etc.
§ 1.162-16Cross reference.
§ 1.162-17Reporting and substantiation of certain business expenses of employees.
§ 1.162-18Illegal bribes and kickbacks.
§ 1.162-19Capital contributions to Federal National Mortgage Association.
§ 1.162-20Expenditures attributable to lobbying, political campaigns, attempts to influence legislation, etc., and certain advertising.
§ 1.162-21Denial of deduction for certain fines, penalties, and other amounts.
§ 1.162-22Treble damage payments under the antitrust laws.
§ 1.162-24Travel expenses of state legislators.
§ 1.162-25Deductions with respect to noncash fringe benefits.
§ 1.162-25TDeductions with respect to noncash fringe benefits (temporary).
§ 1.162-27Certain employee remuneration in excess of $1,000,000 not deductible for taxable years beginning on or after January 1, 1994, and for taxable years beginning prior to January 1, 2018.
§ 1.162-28Allocation of costs to lobbying activities.
§ 1.162-29Influencing legislation.
§ 1.162-31The $500,000 deduction limitation for remuneration provided by certain health insurance providers.
§ 1.162-32Expenses paid or incurred for lodging when not traveling away from home.
§ 1.162-33Certain employee remuneration in excess of $1,000,000 not deductible for taxable years beginning after December 31, 2017.
§ 1.162(k)-1Disallowance of deduction for reacquisition payments.
§ 1.162(l)-0Table of Contents.
§ 1.162(l)-1Deduction for health insurance costs of self-employed individuals.
§ 1.163-1Interest deduction in general.
§ 1.163-2Installment purchases where interest charge is not separately stated.
§ 1.163-3Deduction for discount on bond issued on or before May 27, 1969.
§ 1.163-4Deduction for original issue discount on certain obligations issued after May 27, 1969.
§ 1.163-5Denial of interest deduction on certain obligations issued after December 31, 1982, unless issued in registered form.
§ 1.163-5TDenial of interest deduction on certain obligations issued after December 31, 1982, unless issued in registered form (temporary).
§ 1.163-6TReduction of deduction where section 25 credit taken (temporary).
§ 1.163-7Deduction for OID on certain debt instruments.
§ 1.163-8TAllocation of interest expense among expenditures (temporary).
§ 1.163-9TPersonal interest (temporary).
§ 1.163-10TQualified residence interest (temporary).
§ 1.163-11Allocation of certain prepaid qualified mortgage insurance premiums.
§ 1.163-12Deduction of original issue discount on instrument held by related foreign person.
§ 1.163-13Treatment of bond issuance premium.
§ 1.163-15Debt proceeds distributed from any taxpayer account or from cash.
§ 1.163-16xxx
§ 1.163(d)-1Time and manner for making elections under the Omnibus Budget Reconciliation Act of 1993 and the Jobs and Growth Tax Relief Reconciliation Act of 2003.
§ 1.163(j)-0Table of contents.
§ 1.163(j)-1Definitions.
§ 1.163(j)-2Deduction for business interest expense limited.
§ 1.163(j)-3Relationship of the section 163(j) limitation to other provisions affecting interest.
§ 1.163(j)-4General rules applicable to C corporations (including REITs, RICs, and members of consolidated groups) and tax-exempt corporations.
§ 1.163(j)-5General rules governing disallowed business interest expense carryforwards for C corporations.
§ 1.163(j)-6Application of the section 163(j) limitation to partnerships and subchapter S corporations.
§ 1.163(j)-7Application of the section 163(j) limitation to foreign corporations and United States shareholders.
§ 1.163(j)-8 [Reserved]
§ 1.163(j)-9Elections for excepted trades or businesses; safe harbor for certain REITs.
§ 1.163(j)-10Allocation of interest expense, interest income, and other items of expense and gross income to an excepted trade or business.
§ 1.163(j)-11Transition rules.
§ 1.164-1Deduction for taxes.
§ 1.164-2Deduction denied in case of certain taxes.
§ 1.164-3Definitions and special rules.
§ 1.164-4Taxes for local benefits.
§ 1.164-5Certain retail sales taxes and gasoline taxes.
§ 1.164-6Apportionment of taxes on real property between seller and purchaser.
§ 1.164-7Taxes of shareholder paid by corporation.
§ 1.164-8Payments for municipal services in atomic energy communities.
§ 1.165-1Losses.
§ 1.165-2Obsolescence of nondepreciable property.
§ 1.165-3Demolition of buildings.
§ 1.165-4Decline in value of stock.
§ 1.165-5Worthless securities.
§ 1.165-6Farming losses.
§ 1.165-7Casualty losses.
§ 1.165-8Theft losses.
§ 1.165-9Sale of residential property.
§ 1.165-10Wagering losses.
§ 1.165-11Election to take disaster loss deduction for preceding year.
§ 1.165-12Denial of deduction for losses on registration-required obligations not in registered form.
§ 1.166-1Bad debts.
§ 1.166-2Evidence of worthlessness.
§ 1.166-3Partial or total worthlessness.
§ 1.166-4Reserve for bad debts.
§ 1.166-5Nonbusiness debts.
§ 1.166-6Sale of mortgaged or pledged property.
§ 1.166-7Worthless bonds issued by an individual.
§ 1.166-8Losses of guarantors, endorsers, and indemnitors incurred on agreements made before January 1, 1976.
§ 1.166-9Losses of guarantors, endorsers, and indemnitors incurred, on agreements made after December 31, 1975, in taxable years beginning after such date.
§ 1.166-10Reserve for guaranteed debt obligations.
§ 1.167(a)-1Depreciation in general.
§ 1.167(a)-2Tangible property.
§ 1.167(a)-3Intangibles.
§ 1.167(a)-4Leased property.
§ 1.167(a)-5Apportionment of basis.
§ 1.167(a)-5TApplication of section 1060 to section 167 (temporary).
§ 1.167(a)-6Depreciation in special cases.
§ 1.167(a)-7Accounting for depreciable property.
§ 1.167(a)-8Retirements.
§ 1.167(a)-9Obsolescence.
§ 1.167(a)-10When depreciation deduction is allowable.
§ 1.167(a)-11Depreciation based on class lives and asset depreciation ranges for property placed in service after December 31, 1970.
§ 1.167(a)-12Depreciation based on class lives for property first placed in service before January 1, 1971.
§ 1.167(a)-13TCertain elections for intangible property (temporary).
§ 1.167(a)-14Treatment of certain intangible property excluded from section 197.
§ 1.167(b)-0Methods of computing depreciation.
§ 1.167(b)-1Straight line method.
§ 1.167(b)-2Declining balance method.
§ 1.167(b)-3Sum of the years-digits method.
§ 1.167(b)-4Other methods.
§ 1.167(c)-1Limitations on methods of computing depreciation under section 167(b) (2), (3), and (4).
§ 1.167(d)-1Agreement as to useful life and rates of depreciation.
§ 1.167(e)-1Change in method.
§ 1.167(f)-1Reduction of salvage value taken into account for certain personal property.
§ 1.167(g)-1Basis for depreciation.
§ 1.167(h)-1Life tenants and beneficiaries of trusts and estates.
§ 1.167(i)-1Depreciation of improvements in the case of mines, etc.
§ 1.167(l)-1Limitations on reasonable allowance in case of property of certain public utilities.
§ 1.167(l)-2Public utility property; election as to post-1969 property representing growth in capacity.
§ 1.167(l)-3Multiple regulation, asset acquisitions, reorganizations, etc.
§ 1.167(l)-4Public utility property; election to use asset depreciation range system.
§ 1.167(m)-1Class lives.
§ 1.168-5Special rules.
§ 1.168(a)-1Modified accelerated cost recovery system.
§ 1.168(b)-1Definitions.
§ 1.168(d)-0Table of contents for the applicable convention rules.
§ 1.168(d)-1Applicable conventions—half-year and mid-quarter conventions.
§ 1.168(h)-1Like-kind exchanges involving tax-exempt use property.
§ 1.168(i)-0Table of contents for the general asset account rules.
§ 1.168(i)-1General asset accounts.
§ 1.168(i)-2Lease term.
§ 1.168(i)-3Treatment of excess deferred income tax reserve upon disposition of deregulated public utility property.
§ 1.168(i)-4Changes in use.
§ 1.168(i)-5Table of contents.
§ 1.168(i)-6Like-kind exchanges and involuntary conversions.
§ 1.168(i)-7Accounting for MACRS property.
§ 1.168(i)-8Dispositions of MACRS property.
§ 1.168(j)-1TQuestions and answers concerning tax-exempt entity leasing rules (temporary).
§ 1.168(k)-0Table of contents.
§ 1.168(k)-1Additional first year depreciation deduction.
§ 1.168(k)-2Additional first year depreciation deduction for property acquired and placed in service after September 27, 2017.
§ 1.168A-1Amortization of emergency facilities; general rule.
§ 1.168A-2Election of amortization.
§ 1.168A-3Election to discontinue amortization.
§ 1.168A-4Definitions.
§ 1.168A-5Adjusted basis of emergency facility.
§ 1.168A-6Depreciation of portion of emergency facility not subject to amortization.
§ 1.168A-7Payment by United States of unamortized cost of facility.
§ 1.169-1Amortization of pollution control facilities.
§ 1.169-2Definitions.
§ 1.169-3Amortizable basis.
§ 1.169-4Time and manner of making elections.