Retirement Glossary

Key terms and definitions every retiree and pre-retiree should know.

A

401(k)
An employer-sponsored retirement savings plan that allows employees to contribute pre-tax dollars, often with an employer match. Contributions grow tax-deferred until withdrawal in retirement.
403(b)
A retirement plan similar to a 401(k) but available to employees of public schools, non-profits, and certain religious organizations.
Adjusted Gross Income (AGI)
Your total gross income minus specific deductions. AGI determines eligibility for many tax benefits and affects Medicare premium surcharges (IRMAA).
Annuity
A financial product that provides a stream of payments over time, typically used to create guaranteed income in retirement. Can be fixed, variable, or indexed.
Asset Allocation
The strategy of dividing investments among different asset classes (stocks, bonds, cash) to balance risk and return based on your goals, timeline, and risk tolerance.

B

Beneficiary
The person or entity designated to receive the assets from a retirement account, life insurance policy, or trust upon the owner's death.
Bond
A fixed-income investment where you lend money to a government or corporation in exchange for periodic interest payments and the return of principal at maturity.
Bucket Strategy
A retirement income strategy that divides savings into separate "buckets" based on when the money will be needed: short-term (cash), medium-term (bonds), and long-term (stocks).

C

Capital Gains
The profit earned from selling an investment for more than its purchase price. Long-term capital gains (assets held over one year) are taxed at lower rates than ordinary income.
Catch-Up Contribution
Additional retirement account contributions allowed for individuals aged 50 and older, above the standard annual limit.
COLA (Cost-of-Living Adjustment)
An annual increase to Social Security benefits designed to keep pace with inflation, based on the Consumer Price Index.
Compound Interest
Interest earned on both the initial principal and previously accumulated interest. The key driver of long-term investment growth.

D

Defined Benefit Plan
A traditional pension plan where the employer promises a specific monthly benefit at retirement, typically based on salary and years of service.
Defined Contribution Plan
A retirement plan (like a 401(k)) where the employee and/or employer contribute a defined amount, but the final benefit depends on investment performance.
Diversification
Spreading investments across various asset classes, sectors, and geographies to reduce risk. The principle of not putting all your eggs in one basket.

E

Early Withdrawal Penalty
A 10% additional tax imposed on most distributions from retirement accounts taken before age 59½, on top of regular income tax.
Estate Planning
The process of arranging for the management and distribution of your assets after death, including wills, trusts, powers of attorney, and healthcare directives.
Employer Match
Contributions an employer makes to an employee's retirement plan based on the employee's own contributions, often expressed as a percentage (e.g., 50% match up to 6% of salary).

F

FICA
Federal Insurance Contributions Act — the payroll tax that funds Social Security (6.2%) and Medicare (1.45%), paid by both employees and employers.
Fiduciary
A person or organization legally obligated to act in the best interest of another party. Fee-only financial advisors typically operate as fiduciaries.
FIRE (Financial Independence, Retire Early)
A movement focused on extreme savings and investment to achieve financial independence and retire well before the traditional age of 65.
Full Retirement Age (FRA)
The age at which you qualify for full Social Security retirement benefits. Currently 66–67 depending on your birth year.

H

HSA (Health Savings Account)
A tax-advantaged account for individuals with high-deductible health plans. Contributions are tax-deductible, growth is tax-free, and withdrawals for qualified medical expenses are tax-free.

I

Inflation
The rate at which the general price level rises over time, eroding purchasing power. A critical factor in retirement planning since your money must last decades.
IRA (Individual Retirement Account)
A tax-advantaged personal retirement account. Traditional IRAs offer tax-deductible contributions; Roth IRAs offer tax-free withdrawals in retirement.
IRMAA
Income-Related Monthly Adjustment Amount — a surcharge added to Medicare Part B and Part D premiums for higher-income beneficiaries.

M

Medicare
Federal health insurance for people 65 and older (and some younger people with disabilities). Includes Part A (hospital), Part B (medical), Part C (Advantage), and Part D (prescriptions).
Medigap
Supplemental insurance policies sold by private companies to fill gaps in Original Medicare coverage, such as copayments, coinsurance, and deductibles.
Medicare Advantage (Part C)
An alternative to Original Medicare offered by private insurers. Often includes additional benefits like dental, vision, and prescription drug coverage in a single plan.

P

Pension
A defined benefit retirement plan funded by an employer that provides a fixed monthly payment to retirees based on years of service and salary history.
Power of Attorney
A legal document granting someone authority to make financial or healthcare decisions on your behalf if you become incapacitated.

R

Required Minimum Distribution (RMD)
The minimum amount you must withdraw annually from tax-deferred retirement accounts (traditional IRAs, 401(k)s) starting at age 73 (as of 2023). Failure to withdraw results in a 25% penalty.
Rollover
Moving retirement funds from one account to another (e.g., 401(k) to IRA) without triggering taxes or penalties, as long as the transfer is completed within 60 days or done as a direct trustee-to-trustee transfer.
Roth Conversion
Transferring funds from a traditional IRA or 401(k) to a Roth IRA. You pay income tax on the converted amount now, but future withdrawals are tax-free.
Roth IRA
A retirement account funded with after-tax dollars. Qualified withdrawals in retirement (after age 59½ and five years) are completely tax-free and not subject to RMDs.

S

Sequence of Returns Risk
The risk that poor investment returns in the early years of retirement will deplete your portfolio faster than expected, even if average long-term returns are adequate.
Social Security
A federal program that provides retirement income, disability benefits, and survivor benefits funded through payroll taxes. Benefits are based on your 35 highest-earning years.
Spousal Benefit
A Social Security benefit available to a spouse (or ex-spouse in some cases) equal to up to 50% of the higher-earning partner's full retirement benefit.

T

Target-Date Fund
A mutual fund that automatically adjusts its asset allocation from aggressive (more stocks) to conservative (more bonds) as you approach a target retirement year.
Tax-Deferred
An investment whose earnings (interest, dividends, capital gains) are not taxed until the money is withdrawn, as with traditional 401(k)s and IRAs.
Traditional IRA
An individual retirement account where contributions may be tax-deductible. Earnings grow tax-deferred, and withdrawals in retirement are taxed as ordinary income.
Trust
A legal arrangement where a trustee holds and manages assets on behalf of beneficiaries. Used in estate planning to control asset distribution and potentially reduce estate taxes.

V

Vesting
The process by which an employee earns the right to keep employer contributions to a retirement plan. A common vesting schedule is 3–6 years for full ownership.

W

Withdrawal Rate
The percentage of your retirement portfolio you withdraw each year. The widely cited "4% rule" suggests withdrawing 4% in the first year and adjusting for inflation thereafter.