
US Financial Glossary
American financial terms explained in plain English, from 401(k)s to FICA.
1
1099
TaxesA tax form reporting income from sources other than an employer, including freelance work (1099-NEC), interest (1099-INT), and dividends (1099-DIV).
Example: If you earned $800 freelancing, you'll receive a 1099-NEC from the client.
4
401(k)
RetirementAn employer-sponsored retirement savings plan. Contributions are pre-tax (Traditional) or after-tax (Roth). 2026 limit: $24,500 ($32,500 if age 50+, $35,750 at ages 60-63).
Example: Contributing $500/month to your 401(k) reduces your taxable income and grows tax-deferred.
A
ACH Transfer
BankingAutomated Clearing House, the electronic network used for direct deposits, bill payments, and bank-to-bank transfers in the US.
Example: Your paycheck direct deposit and automatic mortgage payment both use the ACH network.
AMT
TaxesAlternative Minimum Tax, a parallel tax system that prevents high earners from using too many deductions to avoid paying tax. You pay whichever is higher.
Example: High earners with many deductions may trigger the AMT and owe additional tax.
APR
CreditAnnual Percentage Rate, the yearly cost of borrowing including interest and fees. Used to compare loan and credit card offers.
Example: A credit card with 24% APR charges 2% monthly interest on any carried balance.
B
Backdoor Roth
RetirementA strategy for high earners who exceed Roth IRA income limits. You contribute to a non-deductible Traditional IRA, then immediately convert it to a Roth IRA.
Example: A $200,000 earner can use the backdoor Roth to legally get $7,000/year into a Roth IRA.
Brokerage Account
InvestingA taxable investment account for buying stocks, ETFs, bonds, and mutual funds. No contribution limits, but gains are subject to capital gains tax.
Example: You can invest any amount in a brokerage account, unlike retirement accounts with annual limits.
C
Capital Gains Tax
TaxesTax on profit from selling an asset. Long-term gains (held 1+ year) are taxed at 0%, 15%, or 20%. Short-term gains are taxed as ordinary income.
Example: Selling stock held 2 years for a $5,000 profit may be taxed at just 15%.
CD
BankingCertificate of Deposit, a savings product with a fixed interest rate and fixed term (e.g. 6 months, 1 year). Withdrawing early incurs a penalty.
Example: A 12-month CD at 5.2% APY locks in that rate for the full year.
Conforming Loan
MortgagesA mortgage that meets Fannie Mae/Freddie Mac guidelines, including loan size limits. Conforming loans typically offer lower rates than jumbo loans.
Example: In most areas, loans up to $766,550 (2026) are conforming.
Credit Utilisation
CreditThe percentage of your available credit you're currently using. Keeping it below 30% (ideally below 10%) helps maintain a good credit score.
Example: A $1,000 balance on a $5,000 limit card is 20% utilisation.
D
Debt-to-Income Ratio
MortgagesYour total monthly debt payments divided by gross monthly income. Lenders typically require a DTI below 43-50% to qualify for a mortgage.
Example: $2,000 in monthly debts on a $5,000 gross monthly income = 40% DTI.
Deductible
HealthcareThe amount you pay out-of-pocket for healthcare before your insurance starts paying. Higher deductible plans typically have lower premiums.
Example: With a $3,000 deductible, you pay the first $3,000 of medical costs each year.
Dollar-Cost Averaging
InvestingInvesting a fixed amount regularly regardless of market price. Reduces the impact of volatility by buying more shares when prices are low and fewer when high.
Example: Investing $500/month into an ETF regardless of market conditions is dollar-cost averaging.
E
Effective Tax Rate
TaxesThe actual average percentage of your total income paid in taxes, usually lower than your marginal (top bracket) rate.
Example: A $75,000 earner in the 22% bracket may have an effective rate of around 13%.
Employer Match
RetirementFree money your employer adds to your 401(k) based on your contributions, typically 50–100% of contributions up to a set percentage of salary.
Example: A 4% match on a $80,000 salary = $3,200/year in free retirement savings.
Escrow
MortgagesAn account held by your lender to collect and pay property taxes and homeowners insurance on your behalf, typically added to your monthly mortgage payment.
Example: Your $1,800/month mortgage payment may include $300 going into escrow for taxes and insurance.
ETF
InvestingExchange-Traded Fund, a basket of securities that trades on an exchange like a stock. Often tracks an index (e.g. S&P 500) with low fees.
Example: Buying one share of VOO gives you exposure to all 500 S&P 500 companies.
Expense Ratio
InvestingThe annual fee charged by a fund, expressed as a percentage of your investment. Lower is better, even small differences compound significantly over decades.
Example: 0.03% vs 1% expense ratio on $100,000 over 30 years = over $200,000 difference in final value.
F
FAFSA
Student LoansFree Application for Federal Student Aid, the form used to determine eligibility for federal grants, work-study, and loans. File annually.
Example: Completing FAFSA by the priority deadline maximises your eligibility for Pell Grants and subsidised loans.
FDIC Insurance
BankingFederal Deposit Insurance Corporation protection covering up to $250,000 per depositor, per bank, per account category. Protects you if a bank fails.
Example: If your bank fails, FDIC insurance ensures you recover up to $250,000 of your deposits.
FHA Loan
MortgagesA government-backed mortgage insured by the Federal Housing Administration. Allows lower down payments (3.5%) and credit scores (580+), but requires mortgage insurance.
Example: First-time buyers with a 600 credit score often qualify for an FHA loan when they can't get a conventional mortgage.
FICA
TaxesFederal Insurance Contributions Act, the payroll tax that funds Social Security (6.2%) and Medicare (1.45%), matched by your employer.
Example: On a $60,000 salary, you pay $4,590 in FICA taxes annually.
FICO Score
CreditThe most widely used credit score (300–850), calculated by Fair Isaac Corporation. Scores above 740 typically qualify for the best interest rates.
Example: A FICO score of 760 may get you a mortgage rate 0.5% lower than a score of 680.
FSA
HealthcareFlexible Spending Account, an employer benefit letting you set aside pre-tax dollars for medical expenses. Unlike HSAs, most funds must be used by year-end ("use it or lose it").
Example: Contributing $2,500 to an FSA in the 22% bracket saves $550 in taxes.
G
Grace Period
Student LoansA period after graduating, leaving school, or dropping below half-time enrollment during which you're not required to make loan payments. Typically 6 months for federal loans.
Example: Graduating in May gives you until November before your first federal loan payment is due.
H
Hard Inquiry
CreditA credit check triggered when you apply for new credit (mortgage, auto loan, credit card). Can temporarily lower your score by a few points.
Example: Multiple mortgage applications within 45 days count as a single hard inquiry for scoring purposes.
HDHP
HealthcareHigh-Deductible Health Plan, a health insurance plan with higher deductibles and lower premiums. Required to open and contribute to an HSA.
Example: To qualify for an HSA in 2026, your plan must have a deductible of at least $1,650 (individual).
HSA
HealthcareHealth Savings Account, a triple-tax-advantaged account for medical expenses. Contributions are tax-deductible, grow tax-free, and withdrawals for qualified medical costs are tax-free.
Example: 2026 HSA limits: $4,300 (individual), $8,550 (family). Unused funds roll over forever.
HYSA
BankingHigh-Yield Savings Account, a savings account offering significantly higher interest rates than traditional bank accounts, typically offered by online banks.
Example: A HYSA at 5% APY vs 0.01% at a big bank earns $499 more per year on $10,000.
I
IDR
Student LoansIncome-Driven Repayment, federal student loan plans that cap monthly payments at a percentage of discretionary income (e.g. 5-10%). Remaining balance forgiven after 20-25 years.
Example: On a $30,000 income, IDR may reduce your monthly payment from $400 to under $100.
Index Fund
InvestingA fund that passively tracks a market index like the S&P 500. Known for low fees and broad diversification; often outperforms actively managed funds over time.
Example: Vanguard's VTSAX tracks the entire US stock market with an expense ratio of just 0.04%.
Itemised Deductions
TaxesSpecific expenses you can deduct instead of the standard deduction, including mortgage interest, state taxes (SALT), and charitable donations.
Example: If your mortgage interest plus state taxes totals $18,000, itemising saves more than the $14,600 standard deduction.
J
Jumbo Loan
MortgagesA mortgage exceeding conforming loan limits ($766,550 in most areas). Requires stronger credit, larger down payments, and typically carries higher rates.
Example: Buying a $1.2M home usually requires a jumbo loan with 20%+ down.
M
MAGI
TaxesModified Adjusted Gross Income, your AGI with certain deductions added back. Used to determine eligibility for Roth IRA contributions, student loan interest deductions, and more.
Example: For 2026, a MAGI over $153,000 (single) starts to reduce your Roth IRA contribution, and above $168,000 you cannot contribute directly.
O
Out-of-Pocket Maximum
HealthcareThe most you'll pay for covered healthcare in a plan year. After reaching this amount, insurance covers 100% of covered services.
Example: 2026 ACA out-of-pocket maximum: $9,450 (individual), $18,900 (family).
P
PMI
MortgagesPrivate Mortgage Insurance, required when you put less than 20% down on a conventional loan. Typically costs 0.2–2% of the loan annually.
Example: A $300,000 loan with 10% down might incur $1,500/year in PMI until you reach 20% equity.
Points
MortgagesUpfront fees paid to reduce your mortgage interest rate. One point = 1% of the loan amount and typically lowers the rate by 0.25%.
Example: Paying 2 points ($6,000) on a $300,000 loan might reduce your rate from 7% to 6.5%.
PSLF
Student LoansPublic Service Loan Forgiveness, a federal programme that forgives remaining federal student loan balances after 10 years of qualifying payments while working for government or non-profit employers.
Example: A teacher at a public school making income-driven repayments may have their entire remaining balance forgiven after 10 years.
R
RMD
RetirementRequired Minimum Distribution, the minimum amount the IRS requires you to withdraw annually from tax-deferred accounts (401k, Traditional IRA) starting at age 73.
Example: Failing to take your RMD triggers a 25% penalty on the amount not withdrawn.
Roth IRA
RetirementAn individual retirement account funded with after-tax dollars. Qualified withdrawals in retirement are completely tax-free. 2026 limit: $7,500 ($8,600 if 50+). Income phase-out: $153,000-$168,000 (single), $242,000-$252,000 (married filing jointly).
Example: A 30-year-old contributing $7,500/year to a Roth IRA could have over $1M tax-free by retirement.
S
Social Security
RetirementA federal benefit programme providing retirement, disability, and survivor income. You earn credits through payroll taxes; full benefits are available at age 67 for those born after 1960.
Example: Delaying Social Security from age 62 to 70 increases your monthly benefit by up to 77%.
Standard Deduction
TaxesA flat amount that reduces your taxable income, available to all filers without needing to itemise. For 2026: $16,100 (single), $32,200 (married filing jointly).
Example: If your gross income is $55,000 and you take the standard deduction, you're taxed on $38,900.
Subsidised Loan
Student LoansA federal student loan where the government pays the interest while you're in school at least half-time, during grace periods, and deferment.
Example: A $5,500 subsidised loan doesn't accrue interest while you're enrolled, saving hundreds vs an unsubsidised loan.
T
Tax Bracket
TaxesThe rate at which your income is taxed. The US uses a progressive system, only the income within each bracket is taxed at that rate, not all your income.
Example: Being in the 22% bracket doesn't mean paying 22% on all income, only on the portion within that bracket.
Traditional IRA
RetirementAn individual retirement account where contributions may be tax-deductible. Withdrawals in retirement are taxed as ordinary income. RMDs start at age 73. If you are covered by a workplace plan, the deduction phases out at $81,000-$91,000 MAGI (single) and $129,000-$149,000 (married filing jointly) for 2026.
Example: A $6,000 Traditional IRA contribution in the 22% bracket saves $1,320 in taxes that year.
V
Vesting
RetirementThe schedule by which employer contributions to your 401(k) become fully yours. If you leave before fully vested, you may forfeit some employer contributions.
Example: A 3-year cliff vesting means leaving after 2 years forfeits all employer match.
W
W-2
TaxesA form your employer sends each January reporting your annual wages and taxes withheld, used to file your federal and state tax return.
Example: You need your W-2 to complete your IRS Form 1040 by April 15.
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