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Tax Terms

Financial terms related to taxes, deductions, and tax planning.

Capital Loss

The loss from selling an asset for less than its purchase price.

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Consumer Price Index (CPI)

A measure of the average change in prices paid by consumers for goods and services.

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Deflation

A sustained decrease in the general price level of goods and services.

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Depreciation (Accounting)

The reduction in an asset's value over time allocated as an expense in accounting.

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Gross Income

Total income before taxes, deductions, and other expenses.

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Inflation

The rate at which the general level of prices rises over time, reducing purchasing power.

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Itemized Deductions

Specific deductible expenses listed on Schedule A, such as mortgage interest and donations.

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Long-Term Capital Gains

Profits from selling assets held for more than one year, taxed at lower rates.

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Marginal Tax Rate

The tax rate applied to your next dollar of income in the progressive tax system.

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Net Income

Total income after taxes, deductions, and expenses—your "take-home" amount.

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Qualified Dividend

A dividend taxed at capital gains rates rather than ordinary income rates.

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Standard Deduction

A flat amount reducing taxable income, claimed instead of itemizing deductions.

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Tax Bracket

A range of income taxed at a specific marginal rate in the progressive tax system.

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Tax Deduction

An expense that reduces taxable income, lowering the amount of tax owed.

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Tax-Loss Harvesting

Selling losing investments to offset capital gains and reduce tax liability.

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Debt Ceiling

A legal limit on the total debt the U.S. government can borrow.

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FICA

Federal payroll tax that funds Social Security and Medicare. Employees pay 7.65% of wages; employers match it.

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OASDI (Social Security Tax)

The Social Security portion of FICA — 6.2% on wages up to an annual cap, matched by your employer.

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Adjusted Gross Income (AGI)

Your total income minus specific "above-the-line" adjustments — the starting point for figuring federal income tax.

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Effective Tax Rate

Total tax paid divided by total income — your true average tax rate, usually well below your marginal bracket.

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FSA (Flexible Spending Account)

Employer account that lets you set aside pre-tax dollars for medical or dependent-care expenses, with a use-it-or-lose-it rule.

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RSU (Restricted Stock Unit)

Company shares granted to an employee that vest over time and are taxed as ordinary income when they vest.

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ISO (Incentive Stock Option)

A tax-advantaged employee stock option that can qualify for long-term capital gains treatment if holding rules are met.

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ESPP (Employee Stock Purchase Plan)

A workplace plan that lets you buy company stock at a discount (often 15%) through after-tax payroll deductions.

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Pre-Tax

Money deducted from your paycheck before income taxes are calculated, lowering your taxable income today.

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Post-Tax

Money taken from your paycheck after taxes have already been calculated and withheld.

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