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Internal Revenue Code for Retirement Plans and Associated Regulations

Explore a collection of Internal Revenue Code sections with associated regulations to facilitate research and retirement plan compliance.

Suggestion/Request Additional Code Sections or Regulations

§ 1.401-0 Scope and definitions.
§ 1.401-1 Qualified pension, profit-sharing, and stock bonus plans.
§ 1.401-2 Impossibility of diversion under the trust instrument.
§ 1.401-3 Requirements as to coverage.
§ 1.401-6 Termination of a qualified plan.
§ 1.401-7 Forfeitures under a qualified pension plan.
§ 1.401-9 Face-amount certificates—nontransferable annuity contracts.
§ 1.401-10 Definitions relating to plans covering self-employed individuals.
§ 1.401-14 Inclusion of medical benefits for retired employees in qualified pension or annuity plans.
§ 1.401(a)-1 Post-ERISA qualified plans and qualified trusts; in general.
§ 1.401(a)-2 Impossibility of diversion under qualified plan or trust.
§ 1.401(a)-4 Optional forms of benefit (before 1994).
§ 1.401(a)-11 Qualified joint and survivor annuities.
§ 1.401(a)-12 Mergers and consolidations of plans and transfers of plan assets.
§ 1.401(a)-13 Assignment or alienation of benefits.
§ 1.401(a)-14 Commencement of benefits under qualified trusts.
§ 1.401(a)-15 Requirement that plan benefits are not decreased on account of certain Social Security increases.
§ 1.401(a)-16 Limitations on benefits and contributions under qualified plans.
§ 1.401(a)-19 Nonforfeitability in case of certain withdrawals.
§ 1.401(a)-20 Requirements of qualified joint and survivor annuity and qualified preretirement survivor annuity.
§ 1.401(a)-21 Rules relating to the use of an electronic medium to provide applicable notices and to make participant elections.
§ 1.401(a)-30 Limit on elective deferrals.
§ 1.401(a)-50 Puerto Rican trusts; election to be treated as a domestic trust.
§ 1.401(a)(2)-1 Refund of mistaken employer contributions and withdrawal liability payments to multiemployer plans.
§ 1.401(a)(4)-0 Table of contents.
§ 1.401(a)(4)-1 Nondiscrimination requirements of section 401(a)(4).
§ 1.401(a)(4)-2 Nondiscrimination in amount of employer contributions under a defined contribution plan.
§ 1.401(a)(4)-3 Nondiscrimination in amount of employer-provided benefits under a defined benefit plan.
§ 1.401(a)(4)-4 Nondiscriminatory availability of benefits, rights, and features.
§ 1.401(a)(4)-5 Plan amendments and plan terminations.
§ 1.401(a)(4)-6 Contributory defined benefit plans.
§ 1.401(a)(4)-7 Imputation of permitted disparity.
§ 1.401(a)(4)-8 Cross-testing.
§ 1.401(a)(4)-9 Plan aggregation and restructuring.
§ 1.401(a)(4)-10 Testing of former employees.
§ 1.401(a)(4)-11 Additional rules.
§ 1.401(a)(4)-12 Definitions.
§ 1.401(a)(4)-13 Effective dates and fresh-start rules.
§ 1.401(a)(5)-1 Special rules relating to nondiscrimination requirements.
§ 1.401(a)(9)-0 Required minimum distributions; table of contents.
§ 1.401(a)(9)-1 Minimum distribution requirement in general.
§ 1.401(a)(9)-2 Distributions commencing during an employee's lifetime.
§ 1.401(a)(9)-3 Death before required beginning date.
§ 1.401(a)(9)-4 Determination of the designated beneficiary.
§ 1.401(a)(9)-5 Required minimum distributions from defined contribution plans.
§ 1.401(a)(9)-6 Required minimum distributions for defined benefit plans and annuity contracts.
§ 1.401(a)(9)-7 Rollovers and transfers.
§ 1.401(a)(9)-8 Special rules.
§ 1.401(a)(9)-9 Life expectancy and distribution period tables.
§ 1.401(a)(26)-0 Table of contents.
§ 1.401(a)(26)-1 Minimum participation requirements.
§ 1.401(a)(26)-2 Minimum participation rule.
§ 1.401(a)(26)-3 Rules applicable to a defined benefit plan's prior benefit structure.
§ 1.401(a)(26)-4 Testing former employees.
§ 1.401(a)(26)-5 Employees who benefit under a plan.
§ 1.401(a)(26)-6 Excludable employees.
§ 1.401(a)(26)-7 Testing methods.
§ 1.401(a)(26)-8 Definitions.
§ 1.401(a)(26)-9 Effective dates and transition rules.
§ 1.401(a)(31)-1 Requirement to offer direct rollover of eligible rollover distributions; questions and answers.
§ 1.401(a)(35)-1 Diversification requirements for certain defined contribution plans.
§ 1.401(b)-1 Certain retroactive changes in plan.
§ 1.401(f)-1 Certain custodial accounts and annuity contracts.
§ 1.401(k)-0 Table of contents.
§ 1.401(k)-1 Certain cash or deferred arrangements.
§ 1.401(k)-2 ADP test.
§ 1.401(k)-3 Safe harbor requirements.
§ 1.401(k)-4 SIMPLE 401(k) plan requirements.
§ 1.401(k)-5 Special rules for mergers, acquisitions and similar events. [Reserved].
§ 1.401(k)-6 Definitions.
§ 1.401(l)-0 Table of contents.
§ 1.401(l)-1 Permitted disparity in employer-provided contributions or benefits.
§ 1.401(l)-2 Permitted disparity for defined contribution plans.
§ 1.401(l)-3 Permitted disparity for defined benefit plans.
§ 1.401(l)-4 Special rules for railroad plans.
§ 1.401(l)-5 Overall permitted disparity limits.
§ 1.401(l)-6 Effective dates and transition rules.
§ 1.401(m)-0 Table of contents.
§ 1.401(m)-1 Employee contributions and matching contributions.
§ 1.401(m)-2 ACP test.
§ 1.401(m)-3 Safe harbor requirements.
§ 1.401(m)-5 Definitions.

§ 1.404(a)-1 Contributions of an employer to an employees' trust or annuity plan and compensation under a deferred payment plan; general rule.
§ 1.404(a)-1T Questions and answers relating to deductibility of deferred compensation and deferred benefits for employees. (Temporary)
§ 1.404(a)-2 Information to be furnished by employer claiming deductions; taxable years ending before December 31, 1971.
§ 1.404(a)-3 Contributions of an employer to or under an employees' pension trust or annuity plan that meets the requirements of section 401(a); application of section 404(a)(1).
§ 1.404(a)-4-1.404(a)-7 [Reserved]
§ 1.404(a)-8 Contributions of an employer under an employees' annuity plan which meets the requirements of section 401(a); application of section 404(a)(2).
§ 1.404(a)-9 [Reserved]
§ 1.404(a)-10 Profit-sharing plan of an affiliated group; application of section 404(a)(3)(B).
§ 1.404(a)-11 Trusts created or organized outside the United States; application of section 404(a)(4).
§ 1.404(a)-12 Contributions of an employer under a plan that does not meet the requirements of section 401(a); application of section 404(a)(5).
§ 1.404(a)-13 Contributions of an employer where deductions are allowable under section 404(a) (1) or (2) and also under section 404(a)(3); application of section 404(a)(7).
§ 1.404(a)-14 Special rules in connection with the Employee Retirement Income Security Act of 1974.
§ 1.404(b)-1 Method of contribution, etc., having the effect of a plan; effect of section 404(b).
§ 1.404(b)-1T Method or arrangement of contributions, etc., deferring the receipt of compensation or providing for deferred benefits. (Temporary)
§ 1.404(c)-1 Certain negotiated plans; effect of section 404(c).
§ 1.404(d)-1T Questions and answers relating to deductibility of deferred compensation and deferred benefits for independent contractors. (Temporary)
§ 1.404(e)-1 [Reserved]
§ 1.404(e)-1A Contributions on behalf of a self-employed individual to or under a qualified pension, annuity, or profit-sharing plan.
§ 1.404(g)-1 Deduction of employer liability payments.
§ 1.404(k)-1T Questions and answers relating to the deductibility of certain dividend distributions. (Temporary)
§ 1.404(k)-3 Disallowance of deduction for reacquisition payments.

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§ 1.414(b)-1 Controlled group of corporations.
§ 1.414(c)-1 Commonly controlled trades or businesses.
§ 1.414(c)-2 Two or more trades or businesses under common control.
§ 1.414(c)-3 Exclusion of certain interests or stock in determining control.
§ 1.414(c)-4 Rules for determining ownership.
§ 1.414(c)-5 Certain tax-exempt organizations.
§ 1.414(c)-6 Effective date.
§ 1.414(e)-1 Definition of church plan.
§ 1.414(f)-1 Definition of multiemployer plan.
§ 1.414(g)-1 Definition of plan administrator.
§ 1.414(l)-1 Mergers and consolidations of plans or transfers of plan assets.
§ 1.414(q)-1 Highly compensated employee.
§ 1.414(q)-1T Highly compensated employee (temporary).
§ 1.414(r)-0 Table of contents.
§ 1.414(r)-1 Requirements applicable to qualified separate lines of business.
§ 1.414(r)-2 Line of business.
§ 1.414(r)-3 Separate line of business.
§ 1.414(r)-4 Qualified separate line of business—fifty-employee and notice requirements.
§ 1.414(r)-5 Qualified separate line of business—administrative scrutiny requirement—safe harbors.
§ 1.414(r)-6 Qualified separate line of business—administrative scrutiny requirement—individual determinations.
§ 1.414(r)-7 Determination of the employees of an employer's qualified separate lines of business.
§ 1.414(r)-8 Separate application of section 410(b).
§ 1.414(r)-9 Separate application of section 401(a)(26).
§ 1.414(r)-10 Separate application of section 129(d)(8). [Reserved]
§ 1.414(r)-11 Definitions and special rules.
§ 1.414(s)-1 Definition of compensation.
§ 1.414(v)-1 Catch-up contributions.
§ 1.414(v)-2 Catch-up contributions required to be designated Roth contributions under section 414(v)(7).
§ 1.414(w)-1 Permissible withdrawals from eligible automatic contribution arrangements.

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§ 1.501(a)-1 Exemption from taxation.
§ 1.501(c)(2)-1 Corporations organized to hold title to property for exempt organizations.
§ 1.501(c)(3)-1 Organizations organized and operated for religious, charitable, scientific, testing for public safety, literary, or educational purposes, or for the prevention of cruelty to children or animals.
§ 1.501(c)(4)-1 Civic organizations and local associations of employees.
§ 1.501(c)(5)-1 Labor, agricultural, and horticultural organizations.
§ 1.501(c)(6)-1 Business leagues, chambers of commerce, real estate boards, and boards of trade.
§ 1.501(c)(7)-1 Social clubs.
§ 1.501(c)(8)-1 Fraternal beneficiary societies.
§ 1.501(c)(9)-1 Voluntary employees' beneficiary associations, in general.
§ 1.501(c)(9)-2 Membership in a voluntary employees' beneficiary association; employees; voluntary association of employees.
§ 1.501(c)(9)-3 Voluntary employees' beneficiary associations; life, sick, accident, or other benefits.
§ 1.501(c)(9)-4 Voluntary employees' beneficiary associations; inurement.
§ 1.501(c)(9)-5 Voluntary employees' beneficiary associations; recordkeeping requirements.
§ 1.501(c)(9)-6 Voluntary employees' beneficiary associations; benefits includible in gross income.
§ 1.501(c)(9)-7 Voluntary employees' beneficiary associations; section 3(4) of ERISA.
§ 1.501(c)(9)-8 Voluntary employees' beneficiary associations; effective date.
§ 1.501(c)(10)-1 Certain fraternal beneficiary societies.
§ 1.501(c)(12)-1 Local benevolent life insurance associations, mutual irrigation and telephone companies, and like organizations.
§ 1.501(c)(13)-1 Cemetery companies and crematoria.
§ 1.501(c)(14)-1 Credit unions and mutual insurance funds.
§ 1.501(c)(15)-1 Mutual insurance companies or associations.
§ 1.501(c)(16)-1 Corporations organized to finance crop operations.
§ 1.501(c)(17)-1 Supplemental unemployment benefit trusts.
§ 1.501(c)(17)-2 General rules.
§ 1.501(c)(17)-3 Relation to other sections of the Code.
§ 1.501(c)(18)-1 Certain funded pension trusts.
§ 1.501(c)(19)-1 War veterans organizations.
§ 1.501(c)(21)-1 Black lung trusts—certain terms.
§ 1.501(c)(21)-2 Same—trust instrument.
§ 1.501(c)(29)-1 CO-OP Health Insurance Issuers.
§ 1.501(d)-1 Religious and apostolic associations or corporations.
§ 1.501(e)-1 Cooperative hospital service organizations.
§ 1.501(h)-1 Application of the expenditure test to expenditures to influence legislation; introduction.
§ 1.501(h)-2 Electing the expenditure test.
§ 1.501(h)-3 Lobbying or grass roots expenditures normally in excess of ceiling amount.
§ 1.501(r)-0 Outline of regulations.
§ 1.501(r)-1 Definitions.
§ 1.501(r)-2 Failures to satisfy section 501(r).
§ 1.501(r)-3 Community health needs assessments.
§ 1.501(r)-4 Financial assistance policy and emergency medical care policy.
§ 1.501(r)-5 Limitation on charges.
§ 1.501(r)-6 Billing and collection.
§ 1.501(r)-7 Effective/applicability dates.

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