Article 1 - GENERAL PROVISIONS
- Section 40-18-1 - Definitions
- Section 40-18-1.1 - Operating rules
- Section 40-18-2 - Levied; persons and subjects taxable generally
- Section 40-18-2.1 - Income of foreign missionary exempt
- Section 40-18-3 - Income of officers or agents of the United States, etc
- Section 40-18-4 - Interest or other income received from obligations of the United States or its possessions, agencies or instrumentalities
- Section 40-18-5 - Tax on individuals
- Section 40-18-6 - Gain or loss - Basis of property; adjusted basis
- Section 40-18-6.1 - Gain or loss - Special rules for capital gains invested in opportunity zones
- Section 40-18-7 - Gain or loss - Determination of amount
- Section 40-18-8 - Gain or loss - Recognition
- Section 40-18-8.1 - Gain or loss - Recognition of gains invested in opportunity zones
- Section 40-18-9 - Gain or loss - Optional method for returning as income increases in redemption value of securities purchased at a discount
- Section 40-18-11 - Inventory
- Section 40-18-12 - Net income of individuals - Defined
- Section 40-18-13 - Computation of income
- Section 40-18-14 - [Effective Until 1/1/2025] Adjusted gross income of individuals
- Section 40-18-14 - [Effective 1/1/2025] Adjusted gross income of individuals
- Section 40-18-14.1 - Deferred compensation plans
- Section 40-18-14.2 - Adjusted gross income
- Section 40-18-14.3 - Gross income - Discount and interest
- Section 40-18-15 - Deductions for individuals generally
- Section 40-18-15.1 - Net income taxable income defined - Generally
- Section 40-18-15.2 - Net operating loss
- Section 40-18-15.3 - Deductions for health insurance premiums
- Section 40-18-15.4 - Deductions for certain retrofitting or upgrades to homes - Residence in Alabama Insurance Underwriting Association zone
- Section 40-18-15.5 - Deductions for certain retrofitting or upgrades to homes - Residence in Alabama
- Section 40-18-15.6 - Deductions for contributions made to health savings accounts
- Section 40-18-15.7 - Optional increased standard deduction for qualified persons
- Section 40-18-15.8 - [Effective until 12/31/2025] Deductions for contributions to qualifying Alabama Achieving a Better Life Experience savings accounts
- Section 40-18-16 - Depreciation
- Section 40-18-17 - Items not deductible
- Section 40-18-18 - Amortization of war or emergency facilities
- Section 40-18-19 - Exemptions - Generally
- Section 40-18-19.1 - Exemptions for severance, unemployment compensation, etc
- Section 40-18-19.2 - Exemption of certain death benefit payments for peace officer or fireman killed in line of duty
- Section 40-18-19.3 - State income tax credit for the use of personal motor vehicle
- Section 40-18-20 - Exemptions - Military retirement benefits
- Section 40-18-21 - Credits for taxes paid on income from sources outside the state and for job development fees
- Section 40-18-21.1 - Annual report of credits claimed for taxes paid to foreign countries
- Section 40-18-22 - Taxpayers engaged in multistate business - Allocation and apportionment of deductions and exemptions
- Section 40-18-23 - Taxpayers engaged in multistate business - Option of certain taxpayers to report and pay tax on basis of percentage of volume
- Section 40-18-24 - Taxation of subchapter K entity
- Section 40-18-24.1 - [Repealed]
- Section 40-18-24.2 - Taxation of pass-through entities
- Section 40-18-24.3 - Taxation on distributive share of interest, dividends, etc., of nonresident member of qualified investment partnership
- Section 40-18-24.4 - Alabama Electing Pass - Through Entity Tax Act
- Section 40-18-24.5 - Refundable credit for certain owners, members, partners, or shareholders of electing pass-through entities
- Section 40-18-25 - Estates and trusts
- Section 40-18-25.1 - Estates and trusts - Exemptions
- Section 40-18-25.2 - Estates and trusts - Deductions from gross income of net operating loss
- Section 40-18-26 - Information from source of income
- Section 40-18-27 - Individual taxpayer's returns; liability of innocent spouse
- Section 40-18-28 - Returns of subchapter K entities and single member limited liability companies
- Section 40-18-29 - Fiduciary returns
- Section 40-18-30 - Return when accounting period changes
- Section 40-18-31 - Corporate income tax - Generally
- Section 40-18-31.1 - [Repealed]
- Section 40-18-31.2 - Factor presence nexus standard for business activity
- Section 40-18-32 - Corporate income tax - Exemptions
- Section 40-18-33 - Corporate income tax - Taxable income
- Section 40-18-34 - Additions required by corporations
- Section 40-18-35 - Deductions allowed to corporations
- Section 40-18-35.1 - Carry forward of net operating losses
- Section 40-18-35.2 - Deductions from federal taxable for amounts included in income under 26 U.S.C. Section 951A, etc
- Section 40-18-35.3 - Deductions from federal taxable for amounts included in income under 26 U.S.C. Section 118(b)(2)
- Section 40-18-36 - [Repealed]
- Section 40-18-37 - Items not deductible by corporations
- Section 40-18-38 - [Repealed]
- Section 40-18-39 - Corporate returns
- Section 40-18-39.1 - Business interest expense deduction; limitations
- Section 40-18-39.2 - Extensions for filing Alabama corporate income tax return
- Section 40-18-40 - Tax to be reported on forms; department may assess additional tax penalty or interest
- Section 40-18-41 - Amortization of ad valorem tax
- Section 40-18-42 - Time and methods of payment of tax
- Section 40-18-44 - Installment method
- Section 40-18-50 - Penalty for failure to make return within time specified
- Section 40-18-51 - Applicability of lien provisions; disposition of collections; collection prior to delinquency
- Section 40-18-53 - Inspection of returns by federal or foreign state agents
- Section 40-18-54 - Supervision of assessment and collection
- Section 40-18-55 - Statement to be furnished by taxpayer
- Section 40-18-56 - Furnishing sworn statement of annual return of income to department; penalties for failure to comply; limitations on inspection of taxpayer's records
- Section 40-18-57 - Rules to be promulgated by Department of Revenue
- Section 40-18-58 - Appropriation
- Section 40-18-59 - Additional appropriations
- Section 40-18-60 - COVID-19 Recovery Capital Credit Protection Act of 2021
- Section 40-18-61 - Restaurant revitalization grant monies