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Accounts and Contribution Rules

Retirement account terms for 401(k), IRA, Roth, SEP, SIMPLE, self-employed plans, salary deferrals, and contribution tax treatment.

This branch groups the account wrappers and contribution mechanics that determine how retirement savings enter the tax-advantaged system.

It covers employer plans, IRAs, Roth and pre-tax contribution choices, small-business retirement accounts, salary deferral arrangements, and account features that affect saving capacity.

In this section

  • Employer Retirement Plan Accounts
    Personal-finance terms for 401(k), 403(b), 457, CODA, salary-reduction, safe-harbor, and solo retirement arrangements.
    • 401(k) and 403(b) Retirement Plans
      Employer retirement account terms for 401(k), 403(b), Roth, safe-harbor, and solo plan variants.
      • 401(k) Plan
        Employer-sponsored U.S. retirement plan combining payroll contributions, tax advantages, and often employer matching.
      • 403(b) Plan
        Retirement plan for public-school employees, ministers, and certain tax-exempt organizations, often compared with a 401(k) but built around a different eligible workforce.
      • Roth 401(k)
        401(k) contribution option funded with after-tax money, trading current tax relief for tax-free qualified withdrawals later.
      • Safe Harbor 401(k)
        401(k) design that uses required employer contributions to simplify key nondiscrimination compliance requirements.
      • Solo 401(k)
        401(k)-style retirement plan built for self-employed people and owner-only businesses.
    • 457, CODA, and Salary Reduction Arrangements
      Salary-reduction and deferred employer plan terms for 457 plans, CODAs, and payroll elections.
  • IRA And Self-Employed Retirement Accounts
    Personal-finance terms for traditional, Roth, spousal, self-directed, SEP, SIMPLE, Keogh, and self-employed retirement accounts.
    • IRA Types and Roth or Traditional Accounts
      IRA terms for Roth, traditional, spousal, and self-directed retirement account choices.
      • IRA
        U.S. retirement account with tax advantages, used alongside or instead of employer-sponsored plans.
      • Roth IRA
        After-tax individual retirement account designed for tax-free qualified withdrawals later in retirement.
      • Self-Directed IRA
        IRA structure that gives the account owner broader control over investment selection, including certain alternative assets.
      • Spousal IRA
        IRA contribution structure that lets a married couple fund retirement savings for a non-earning or low-earning spouse.
      • Traditional IRA
        Tax-deferred individual retirement account that may allow a current-year tax deduction and usually taxes withdrawals later in retirement.
    • Self-Employed and Small-Business Retirement Plans
      Small-business and self-employed retirement plan terms for owner-only and simplified plans.
      • Keogh Plan
        Older tax-advantaged retirement-plan framework for self-employed individuals and small business owners, created under U.S. retirement law.
      • Self-Employed Retirement Plan
        Retirement plan structure built for self-employed individuals and owner-operators who save through business income rather than a standard employer payroll setup.
      • SEP IRA
        Employer-funded retirement account structure often used by self-employed workers and small businesses because it is simpler than many workplace plans.
      • SIMPLE IRA
        Small-employer retirement plan that combines employee salary deferrals with required employer contributions through IRA accounts.
  • Retirement Contribution Tax Treatment
    Personal-finance terms for pre-tax, after-tax, Roth, voluntary, tax-deferred, and tax-sheltered retirement contributions.
Revised on Monday, May 18, 2026