Financial Glossary

A

401(k)

Employer-sponsored retirement savings account. Employees contribute pre-tax dollars (Traditional) or after-tax dollars (Roth), often with employer matching. 2025 limit: $23,500 under 50, $31,000 with catch-up. 401(k) calculator · Learn more

403(b)

Retirement account for nonprofit and public school employees, similar to a 401(k). Same contribution limits apply.

529 Plan

Tax-advantaged savings account for education expenses. Growth is tax-free if used for qualified education costs. College savings calculator · Learn more

Active Management

Investment strategy where fund managers pick individual securities to beat the market. Typically higher fees and underperforms index funds 85–90% of the time over 15 years.

Adjusted Gross Income (AGI)

Total income minus specific deductions (retirement contributions, student loan interest, HSA contributions). Determines eligibility for many tax benefits and credits. Learn more

Amortization

Paying off a loan through regular payments of principal and interest. Early payments are mostly interest; later payments are mostly principal. Mortgage calculator

Annuity

Insurance product providing guaranteed income payments, typically in retirement. Can be immediate or deferred, fixed or variable. Fees vary widely — compare carefully.

APR (Annual Percentage Rate)

Yearly cost of borrowing, including fees. Used for credit cards, loans, and mortgages. Learn more

APY (Annual Percentage Yield)

Yearly return on savings or investments, accounting for compound interest. A higher compounding frequency produces a slightly higher APY. Learn more

Appreciation

Increase in the value of an asset over time, such as a home or stock. The opposite of depreciation.

Asset Allocation

How a portfolio is divided among stocks, bonds, cash, and other asset classes. The single biggest factor in long-term returns and risk. Rebalance calculator · Learn more

Avalanche Method

Debt payoff strategy targeting highest-interest debt first. Saves the most money but can feel slow. Debt payoff calculator · Learn more

B

BAH (Basic Allowance for Housing)

Tax-free monthly payment to service members to offset housing costs when government quarters are not provided. Amount varies by rank, dependency status, and duty station location. Military pay calculator

BAS (Basic Allowance for Subsistence)

Tax-free monthly payment to offset food costs. A fixed amount that differs for enlisted and officers. Military pay calculator

BRS (Blended Retirement System)

The military retirement system effective since 2018 that blends a reduced pension (2.0% per year of service) with TSP matching contributions and a mid-career continuation pay bonus. Military retirement calculator

Backdoor Roth

Strategy for high earners to contribute to a Roth IRA despite income limits: make a non-deductible Traditional IRA contribution, then immediately convert to Roth. Learn more

Balance Transfer

Moving credit card debt to a new card with a promotional 0% APR period (usually 12–21 months). Typically charges a 3–5% fee. Learn more

Barista FIRE

Partial financial independence where part-time work covers the gap between investment income and living expenses. Learn more

Beneficiary

Person or entity designated to receive assets from a retirement account, insurance policy, or trust upon the owner's death. Review beneficiary designations regularly — they override your will. Learn more

Bond

Fixed-income investment representing a loan to a government or corporation. Pays periodic interest and returns principal at maturity. Less volatile but lower long-term returns than stocks.

Bond Tent

Temporarily increasing bond allocation in early retirement to protect against sequence of returns risk, then gradually shifting back to stocks. Bond tent calculator · Learn more

Brokerage Account

Taxable investment account with no contribution limits or withdrawal restrictions. No tax advantages, but maximum flexibility. Learn more

Budget

Plan showing income vs. expected expenses. The 50/30/20 guideline suggests 50% needs, 30% wants, 20% savings and debt payoff. Budget calculator · Learn more

C

Capital Gains

Profit from selling an investment. Short-term (held under 1 year) taxed as ordinary income. Long-term (held over 1 year) taxed at preferential rates: 0%, 15%, or 20%. Learn more

Catch-up Contribution

Extra retirement account contribution for people 50 and older. Additional $7,500 for 401(k) and $1,000 for IRA (2025). Learn more

CD (Certificate of Deposit)

Bank product locking money for a set term at a guaranteed interest rate. Early withdrawal triggers a penalty. Learn more

Cliff Vesting

All employer contributions become yours at once after a set period (often 3 years), as opposed to gradual vesting. Learn more

COBRA

Law allowing continued employer health insurance for up to 18 months after leaving a job. The employee pays the full premium plus a 2% admin fee. Learn more

Coast FIRE

Having enough invested that compound growth alone will fund retirement at a traditional age, even with no further contributions. Coast FIRE calculator · Learn more

Coinsurance

Percentage of medical costs you pay after meeting your deductible (e.g., 20% coinsurance means you pay 20%). Learn more

COLA (Cost-of-Living Adjustment)

Annual increase to Social Security benefits, typically tied to inflation. Learn more

Compound Interest

Interest earned on both the original amount and previously accumulated interest. The core force behind long-term wealth building. Compound interest calculator · Learn more

Compounding Frequency

How often interest is calculated and added to the balance — daily, monthly, quarterly, or annually. More frequent compounding produces slightly higher returns. Compound interest calculator

Contribution Limit

Maximum amount allowed in a tax-advantaged account per year. Limits vary by account type and age. Check the IRS for current-year limits.

Copay

Fixed dollar amount paid for a specific healthcare service, separate from deductible and coinsurance. Learn more

Cost Basis

Original purchase price of an investment, used to calculate capital gains or losses when sold. Tracking cost basis matters for tax efficiency. Learn more

Credit Score

Three-digit number (300–850 for FICO) predicting repayment likelihood. Affects borrowing ability and interest rates. Learn more

Credit Utilization

Percentage of available credit being used. Keeping it under 30% helps your credit score. Learn more

D

Debt-to-Income Ratio (DTI)

Monthly debt payments divided by gross monthly income. Lenders typically cap mortgages at 28% front-end (housing) and 36–43% back-end (all debt). DTI calculator · Learn more

Deductible (Insurance)

Amount you pay out-of-pocket before insurance kicks in. Higher deductible = lower premium. Learn more

Deflation

Decrease in general price levels. Opposite of inflation; rare in modern economies.

Dependent

Person who relies on you for financial support, typically children or elderly parents. Affects tax filing status and eligibility for credits. Learn more

Depreciation

Decrease in an asset's value over time, especially vehicles and equipment. The opposite of appreciation.

Disability Insurance

Coverage replacing a portion of income if illness or injury prevents working. Available through employers or purchased individually. Disability insurance calculator · Learn more

Diversification

Spreading investments across different asset classes, sectors, and geographies to reduce risk. Learn more

Dividend

Portion of company profits paid to shareholders. Qualified dividends are taxed at lower capital gains rates. Learn more

Dollar-Cost Averaging

Investing a fixed amount at regular intervals regardless of market price. Reduces timing risk. Learn more

E

Earned Income

Wages, salaries, tips, and self-employment income. Distinct from investment income. Required to contribute to an IRA. Learn more

Effective Tax Rate

Total taxes paid divided by total income. Lower than your marginal rate because of progressive brackets. Tax bracket calculator · Learn more

Emergency Fund

Savings covering 3–6 months of essential expenses, kept in a liquid, low-risk account like a high-yield savings account. Emergency fund calculator · Learn more

Employer Match

Employer contribution to your retirement plan based on your contributions (e.g., 50% match up to 6% of salary). This is free money — always contribute enough to get the full match. Employer match calculator · Learn more

Equity

Ownership in a company (stock) or the portion of a home's value you own (home value minus mortgage balance).

Escrow

Third party holding funds during a transaction, releasing them when conditions are met. Common in home purchases. Learn more

Estate Planning

Arranging how assets are distributed after death, through wills, trusts, beneficiary designations, and powers of attorney. Learn more

ETF (Exchange-Traded Fund)

Investment fund holding a basket of securities, traded like a stock. Typically lower fees than mutual funds. Learn more

Expense Ratio

Annual fund fee as a percentage of assets. Index funds: 0.03–0.20%. Actively managed: 0.50–1.50%+. Directly reduces returns. Fee impact calculator · Learn more

F

Fat FIRE

Financial independence with a higher spending target (typically $100,000+/year), requiring a larger portfolio. Learn more

FICA

Federal Insurance Contributions Act tax: Social Security (6.2%) and Medicare (1.45%) withheld from each paycheck. Learn more

Fiduciary

Financial advisor legally required to act in your best interest. Fee-only advisors are fiduciaries; commission-based advisors may not be.

FIRE (Financial Independence, Retire Early)

Having enough invested that work becomes optional. Target: 25 times annual expenses. FIRE calculator · Learn more

Fixed Income

Investments providing regular, predictable payments — bonds, CDs, and Treasury securities. Lower risk and lower returns than stocks.

FSA (Flexible Spending Account)

Pre-tax employer account for healthcare expenses. Use-it-or-lose-it: funds generally expire at year-end. Learn more

Full Retirement Age (FRA)

Age at which you receive 100% of Social Security benefits. Currently 67 for people born 1960 or later. Social Security calculator · Learn more

G

Glide Path

Gradual shift in asset allocation over time, typically becoming more conservative as retirement approaches. Learn more

Grace Period

Window between credit card statement date and payment due date (typically 21–25 days). Interest-free if you pay in full each cycle. Learn more

Gross Income

Total income before taxes and deductions. Not the same as take-home pay. Learn more

Guaranteed Income

Income that continues regardless of market conditions — Social Security, pensions, and annuities. Forms the foundation of a retirement income plan.

H

HDHP (High-Deductible Health Plan)

Health plan with a higher deductible but lower premiums. Required to contribute to an HSA. Learn more

HELOC (Home Equity Line of Credit)

Revolving credit line using home equity as collateral. Variable rate, typically used for home improvements or debt consolidation. Learn more

High-3

The average of a service member's highest 36 months of base pay, used to calculate military pension benefits under both the Legacy and BRS systems. Military retirement calculator

HSA (Health Savings Account)

Triple tax-advantaged account: contributions are tax-deductible, growth is tax-free, and qualified medical withdrawals are tax-free. Requires an HDHP. HSA calculator · Learn more

HYSA (High-Yield Savings Account)

Online savings account paying significantly more interest than traditional bank savings (4–5% APY vs. 0.01%). Ideal for emergency funds. Learn more

I

Index Fund

Fund that passively tracks a market index (S&P 500, total market). Lowest fees, broadest diversification. Learn more

Inflation

General increase in prices over time, reducing what each dollar can buy. Long-term average: roughly 3%/year. Inflation impact calculator · Learn more

Interest Rate

The cost of borrowing money or the return on savings, expressed as a percentage. Learn more

IRA (Individual Retirement Account)

Personal retirement account. Traditional: tax-deductible contributions, taxed withdrawals. Roth: after-tax contributions, tax-free withdrawals. 2025 limit: $7,000 ($8,000 if 50+). Learn more

IRRRL (Interest Rate Reduction Refinance Loan)

A VA streamline refinance that lets veterans lower their mortgage interest rate with minimal paperwork and a reduced funding fee (0.5%). VA loan calculator

J

Joint Account

Bank or investment account owned by two or more people with equal access rights. Common between spouses. Learn more

L

Lean FIRE

Financial independence with a lower spending target (under $40,000/year). Learn more

Liability

Any debt or financial obligation — mortgages, student loans, credit card balances, car loans. Subtracted from assets to determine net worth.

Lifestyle Inflation

Tendency for expenses to rise with income. Prevented by saving at least half of every raise. Learn more

Liquidity

How quickly an asset can be converted to cash without significant loss. Savings accounts are highly liquid; real estate is not.

Loan-to-Value (LTV)

Loan amount divided by property value. PMI is usually required when LTV exceeds 80%. Learn more

Long-Term Care Insurance

Coverage for extended nursing home, assisted living, or in-home care. Premiums increase with age — buying in your 50s typically offers the best value. Learn more

Loss Aversion

Feeling the pain of losses roughly twice as strongly as the pleasure of equal gains. Leads to overly conservative decisions. Learn more

M

Marginal Tax Rate

Tax rate on the next dollar of income. Higher than your effective (average) tax rate. Tax bracket calculator · Learn more

Medicare

Federal health insurance for age 65+. Parts A (hospital), B (outpatient), D (prescriptions). Learn more

Money Market Account

Savings account offering higher interest rates in exchange for higher minimum balances. FDIC-insured up to $250,000. Learn more

Mortgage

Home loan, typically 15 or 30 years at a fixed rate. Monthly payment includes principal, interest, taxes, and insurance (PITI). Mortgage calculator · Learn more

Mutual Fund

Investment pooling money from many investors into a diversified portfolio of stocks, bonds, or other securities. Priced once daily at market close. Learn more

N

Net Worth

Total assets minus total liabilities. The single best snapshot of financial position. Net worth calculator

Nominal Return

Investment return before adjusting for inflation. Always higher than the real return. Inflation impact calculator

NPV (Net Present Value)

The current value of a stream of future payments, discounted at an expected return rate. Used to compare Social Security claiming strategies. Social Security calculator

O

Opportunity Cost

The potential benefit missed by choosing one option over another. Every dollar spent is a dollar that can't be invested. Opportunity cost calculator · Learn more

Out-of-Pocket Maximum

Maximum you pay annually for healthcare before insurance covers 100%. Includes deductibles, copays, and coinsurance. Learn more

P

Passive Income

Income requiring minimal ongoing effort — dividends, rental income, interest, royalties. Passive income calculator · Learn more

Pay Yourself First

Budgeting strategy of treating savings as a non-negotiable bill paid before anything else. Learn more

PMI (Private Mortgage Insurance)

Insurance protecting the lender when down payment is less than 20%. Added to monthly mortgage payment until LTV reaches 80%. Learn more

Power of Attorney

Legal document granting someone authority to act on your behalf for financial or healthcare decisions. Learn more

Premium (Insurance)

Regular payment to maintain insurance coverage. Higher premiums usually mean lower deductibles and better coverage. Learn more

Principal

The original amount invested or borrowed, separate from interest or earnings. In a loan, principal is the amount that reduces with each payment.

Probate

Court process validating a will and distributing an estate. Can be slow, expensive, and public. Avoided through trusts and beneficiary designations. Learn more

Pro-Rata Rule

IRS rule requiring all Traditional IRA balances to be aggregated when calculating tax on a Roth conversion. Complicates backdoor Roth if pre-tax IRAs exist. Learn more

Purchasing Power

What money can actually buy. Eroded by inflation over time. Inflation impact calculator · Learn more

Q

Qualified Distribution

Withdrawal from a tax-advantaged account meeting IRS rules for tax-free treatment. For Roth IRAs: account open 5+ years and owner is 59½+. Learn more

R

Real Return

Investment return after subtracting inflation. A 10% nominal return with 3% inflation produces a 7% real return. Inflation impact calculator

Rebalancing

Adjusting a portfolio back to its target allocation after market movements. Forces "sell high, buy low." Rebalance calculator · Learn more

Refinancing

Replacing an existing loan with a new one, usually for a lower rate or different term. Refinance calculator · Learn more

REIT (Real Estate Investment Trust)

Investment company holding real estate. Pays dividends and provides liquidity impossible with direct property ownership. Learn more

Risk Tolerance

Your ability and willingness to accept investment losses in pursuit of higher returns. Affects asset allocation decisions. Learn more

RMD (Required Minimum Distribution)

Mandatory annual withdrawal from Traditional IRAs and 401(k)s starting at age 73. Roth IRAs are exempt during the account holder's lifetime. RMD calculator

Rollover

Moving retirement funds from one account to another (e.g., 401(k) to IRA) without triggering taxes. Rollover calculator

Roth Conversion

Moving pre-tax retirement account funds to a Roth IRA. Triggers immediate tax on the converted amount. Roth vs. Traditional · Backdoor Roth

Roth Conversion Ladder

Early retirees convert portions of a Traditional IRA to Roth each year, then withdraw the converted amount penalty-free after 5 years. Learn more

RSU (Restricted Stock Unit)

Stock compensation granted on a vesting schedule. Taxed as ordinary income when shares vest. Learn more

Rule of 72

Divide 72 by the annual return to estimate how many years until money doubles. At 8%, money doubles in about 9 years. Compound interest calculator

S

Safe Withdrawal Rate

Percentage of a portfolio that can be withdrawn annually without running out. The 4% rule (25× expenses) is the widely used benchmark. Withdrawal calculator · Learn more

Savings Goal

Target amount with a deadline. Breaking large goals into monthly contributions makes them achievable. Savings goal calculator

Sequence of Returns Risk

Danger that poor early-retirement returns permanently damage a portfolio, even if average returns are fine over time. Sequence risk · Safe withdrawal rates

Sinking Fund

Separate savings for a known future expense (car replacement, annual insurance, vacation). Prevents budget disruption. Learn more

Snowball Method

Debt payoff strategy targeting smallest balances first for motivational wins. Costs more in interest than avalanche but builds momentum. Debt payoff calculator · Learn more

SBP (Survivor Benefit Plan)

Military program that provides an annuity to a surviving spouse equal to 55% of the elected pension base. Premiums are 6.5% of elected base pay. SBP & SGLI analyzer

SGLI (Servicemembers' Group Life Insurance)

Low-cost group term life insurance for active duty service members. Coverage up to $500,000 in $50,000 increments at $3.50 per $50,000/month. SBP & SGLI analyzer

Social Security

Federal retirement program funded by FICA taxes. Full benefits at full retirement age (FRA); reduced at 62, increased at 70. Social Security calculator · Learn more

Standard Deduction

Fixed amount subtracted from adjusted gross income before calculating federal income tax. 2025: $15,000 single, $30,000 married filing jointly. Learn more

Stock

Ownership share in a company. Stocks have historically returned about 10% annually (7% after inflation) over long periods. Learn more

T

TSP (Thrift Savings Plan)

Retirement savings plan for military and federal employees, similar to a 401(k). Offers extremely low-cost index funds. Under BRS, the government matches up to 5% of base pay. TSP calculator

Take-Home Pay

Income after all taxes and deductions. The amount that lands in your bank account. Take-home pay calculator · Learn more

Target-Date Fund

Mutual fund that automatically adjusts its stock/bond mix over time, becoming more conservative as the target retirement date approaches. Learn more

Tax Bracket

Range of income taxed at a specific rate. The U.S. uses progressive brackets: first dollars taxed at lowest rate, last dollars at highest. Tax bracket calculator · Learn more

Tax-Loss Harvesting

Selling losing investments to offset gains and reduce taxes. Up to $3,000 of excess losses can offset ordinary income per year. Learn more

Term Life Insurance

Life insurance covering a specific period (10–30 years). Much cheaper than whole life. Buy enough to replace your income for dependents. Insurance needs calculator · Learn more

TIPS (Treasury Inflation-Protected Securities)

Treasury bonds whose principal adjusts with inflation, guaranteeing a real return. Useful for preserving purchasing power in a bond allocation.

Total Compensation

Everything your employer pays: salary, bonus, equity, 401(k) match, health insurance, PTO value. Often 20–30% above base salary. Total compensation calculator · Learn more

Traditional IRA

Individual retirement account with tax-deductible contributions and taxed withdrawals. Counterpart to the Roth IRA. Learn more

Trust

Legal entity holding assets for beneficiaries. Avoids probate, provides control over asset distribution, and can reduce estate taxes. Learn more

U

Umbrella Insurance

Liability insurance beyond home and auto limits. Cheap protection ($150–300/year) against catastrophic liability. Learn more

V

VA Funding Fee

One-time fee charged on VA loans to offset program costs. Percentage varies by down payment amount, first vs subsequent use, and military component. Veterans with service-connected disability are exempt. VA loan calculator

VA Loan

Home mortgage backed by the Department of Veterans Affairs. Requires no down payment and no private mortgage insurance (PMI). Available to veterans, active duty, and eligible surviving spouses. VA loan calculator

Vesting

Process of gaining ownership of employer contributions to a retirement plan. You always own your own contributions. Learn more

W

W-2

Annual tax form reporting wages and taxes withheld. Key document for filing taxes. Learn more

W-4

Form determining how much federal income tax is withheld from each paycheck. Paycheck withholding calculator · Learn more

Wash Sale

Selling and repurchasing the same security within 30 days. The IRS disallows the loss deduction. Learn more

Whole Life Insurance

Permanent life insurance with a cash value component. Higher premiums and lower net benefit than term life for most people. Learn more

Withholding

Taxes automatically deducted from each paycheck by your employer and sent to the IRS. Adjusted via Form W-4. Paycheck withholding calculator · Learn more

Y

Yield

Annual income from an investment (dividends or interest) expressed as a percentage of the investment's price. Learn more

Z

Zero-Based Budgeting

Every dollar of income is assigned a job (expense category or savings). Income minus expenses equals zero. Learn more

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