A
Ability to Pay
This refers to the amount you can pay toward your tax balance.
Above-the-Line Deduction
Also called an adjustment to income. A type of deduction that you may take without having to itemize.
Adjusted Basis
The original value of a piece of property plus the value of improvements and minus depreciation. The adjusted basis is used to figure your gain or loss on a sale.
Adjusted Gross Income (AGI)
Your gross income reduced by adjustments to income, before exemptions and deductions are applied.
Adjustment to Income
Also called an above-the-line deduction. A type of deduction that you may take without having to itemize.
Allowances
A number on your Form W-4 used by your employer to calculate how much income tax to withhold from your pay. The greater the number of allowances, the less income tax will be withheld.
Alternative Minimum Tax (AMT)
A special tax system which was originally intended to prevent wealthy taxpayers from taking advantage of so many tax breaks that they end up paying little or no taxes. The AMT affects more and more middle-class taxpayers every year.
Amendment / Amended Return
A corrected tax return (using Form 1040X) filed to revise a previous year’s tax return.
Amount Due
Your total tax bill. The amount of money you owe in taxes.
Annuity
An annual payment, such as from a retirement plan.
Appeal
To request the review of an IRS decision or adjustment.
Audit
An IRS review, or examination, of a tax return. Many audits are random, but returns may also be deliberately chosen for audit based on a number of red flags.
B
Basis
The amount a piece of property is worth when you first acquire it.
C
Canceled Debt
Forgiven debt on a mortgage or other loan. Canceled debt is generally considered taxable income.
Capital Gain
Profit from the sale or trade of an investment property such as stock or real estate.
Credit
A dollar-for-dollar reduction of your taxes owed. Some credits are refundable.
D
Deduction
An amount subtracted from your taxable income for certain expenses.
Deficiency
The amount of taxes owed after paying too little, as assessed during an audit.
Dependent
A child or relative whom you support and who qualifies you to take an exemption.
Depreciation
A deduction taken for the business use of certain items which lose value over time, such as office furniture.
Direct Deposit
When a tax refund or other payment is sent electronically to your bank account.
Direct Tax
A tax paid directly to the federal government, or to state or local governments, such as income tax and property tax.
E
Earned Income
Money or other compensation given to you for working, whether you receive a paycheck or you are self-employed and pay yourself.
Earned Income Credit (EIC)
A refundable tax credit targeted at workers who make low to moderate incomes. Learn more about the earned income credit.
E-File
To electronically file a tax return. To file your taxes online.
EIN
Employer Identification Number, used by employees to identify their employers to the IRS.
Electronic Filing
Filing your tax return online, also known as e-filing. This is generally more secure, more accurate, and faster than filing your taxes by paper through the mail.
Employment Tax
Also called a payroll tax. A tax paid by employers for FICA and FUTA.
Entity
A person or group of people that pays taxes. Types of tax entities include individuals, businesses, estates, trusts, and charitable organizations.
Estate
A tax entity that receives and reports a person’s income and pays taxes after that person’s death.
Estate Tax
A tax, targeted at the wealthy, on the total value of an estate if it exceeds a certain amount.
Estimated Tax
Quarterly down-payments toward your annual tax bill, required if you expect to make more than a certain amount of income for the year and if your income taxes are not covered by withholding.
Excise Tax
A special tax on using or selling certain products or services. One example of excise taxes is luxury taxes.
Extension
A tax extension, obtained by filing or e-filing Form 4868, will delay your filing deadline by 3 months. Note that this extends your time to file, but not your time to pay, and interest and penalties may apply to any late tax payments.
F
Fair Market Value
The price for which you could sell a piece of property on the open market under the current economic conditions.
FICA Tax
A tax on employment required by the Federal Insurance Contributions Act. This payroll tax is used to fund Social Security and Medicare.
Filing Status
A category of taxpayer. Each taxpayer must select a filing status on their tax return: Single, Head of Household, Married Filing Jointly, Married Filing Separately, or Qualifying Widow(er). Filing status determines things such as your overall tax rate and your eligibility and income limits for various credits and deductions.
Flat Tax
A tax based on the same percentage of income for all taxpayers, regardless of income level.
Flexible Spending Account (FSA)
Also called a reimbursement account. A special employer-sponsored account which is generally used for approved medical expenses. Your contributions are taken directly from your paycheck before taxes are applied and are sometimes matched by an employer dollar for dollar. Funds contributed to some FSA’s may become unavailable at the end of the year.
Foreclosure
The legal process by which a lender takes possession of a home when the homeowner has defaulted on the mortgage.
FUTA Tax
A tax on employment required by the Federal Unemployment Tax Act. This payroll tax is used to fund state unemployment insurance programs and state job agencies.
G
Generation Skipping Transfer (GST) Tax
Sometimes called the “Grandparent Tax”, the GST tax is a special tax on the transfer of an estate to your grandchildren, to another relative more than one generation removed from you, or to a non-relative who is more than 37 and 1/2 years younger than you. The GST tax is paid in addition to any applicable gift or estate taxes.
Gift Tax
A special tax paid by the giver of a gift consisting of money or property that is worth more than a certain amount. Some transfers of money are exempted from the gift tax, such a gift to a spouse or a gift used to pay medical or educational expenses.
Gross Income
The total amount of income you must report on your tax return. Your income before applying adjustments, exemptions, credits, and deductions.
H
Head of Household
A filing status claimed by taxpayers who are single but have qualifying dependents.
Home Office
An area of your home used primarily or exclusively for business purposes, for which you may be able to take certain deductions.
I
Income Taxes
Taxes paid by individuals and businesses based on earned and unearned income.
Independent Contractor
A self-employed person who performs services for others in exchange for money or other compensation.
Indirect Tax
A tax which is not paid directly, but which is paid through a cost increase, such as sales tax.
Innocent Spouse Relief
A petition filed by a divorced taxpayer, who formerly filed jointly, to be relieved of responsibility for their ex-spouse’s unpaid tax bill.
Interest
Money gained from investments, such as bank accounts, bonds, or trusts. Interest is unearned income.
Investment Income
Money or other compensation received from profitable investments, generally in the form of interest or dividends.
Individual Retirement Arrangement (IRA)
Also called an Individual Retirement Account or a Traditional IRA. A special account designed to encourage saving money for retirement. Contributions up to a certain amount are generally tax deductible and any interest the account earns is not taxed until you withdraw funds. Withdrawals of funds before you reach the age 59 1/2 are usually penalized. In many cases, it is possible to convert a Traditional IRA to a Roth IRA.
Itemized Deduction
A deduction for a specific expense that may be claimed if the total amount of all itemized deductions is greater than the standard deduction.
ITIN
Individual Taxpayer Identification Number. A number used to identify foreign taxpayers to the IRS. Only taxpayers who do not have a Social Security Number must obtain an ITIN.
L
Levy
To impose a tax. To tax someone, or to put a tax on something.
Lien
The right to have possession of asset(s) owned by another person until the debt owed is paid in full or discharged.
Like-Kind Exchange
A nontaxable or tax-deferred trade of similar properties.
Local Tax
A tax charged by a local government, such as a city or county.
Luxury Tax
An indirect tax, targeted at the wealthy, attached to certain expensive, non-essential goods or services such as sports cars or jewelry.
M
Marginal Tax Rate
The tax rate that applies to the last dollar of income earned.
Married Filing Jointly
A filing status claimed by married couples who wish to combine income and file a single tax return together in order to take advantage of various tax benefits.
Married Filing Separately
A filing status claimed by married couples who do not wish to file a joint return and agree to report their income separately.
Medical Savings Account (MSA)
Also known as an Archer Medical Savings Account. A tax-deductible savings account containing funds for medical expenses not covered by insurance. Interest and qualified withdrawals are generally nontaxable.
N
Nonresident
A person who did not live in a particular state but worked or did business there and so must file a state income tax return.
Nontaxable
This describes income which is not subject to taxation.
Not Collectible
A label given by the IRS to taxpayers who are unable to pay their tax debt.
P
Part-Year Resident
A person who lived in a particular state for only part of the year but must file a state income tax return there.
Payroll Tax
Also called employment tax. A tax paid by employers for FICA and FUTA.
Penalty
Charges added to your tax bill for late filing and late payment. The IRS may also charge interest for late tax payments.
Pension
A retirement plan that pays an annuity. Also, see Individual Retirement Arrangement.
Personal Exemption
An exemption claimed for yourself and, if married filing jointly, for your spouse.
PIN
Personal Identification Number. A five-digit number used to securely “sign” an electronically submitted, or e-filed, tax return.
Principal Residence
Also called a Primary Residence. The place where a taxpayer lives for the greater part of the year.
Progressive Tax
A tax based on a percentage of income. The higher your income, the larger a percentage you pay.
Property Tax
A tax paid for valuable property such as real estate and vehicles.
Q
Qualifying Widow(er)
A filing status claimed by a taxpayer whose spouse has died during the tax year. This status entitles the taxpayer to the tax rates and benefits of a joint return. If a widow(er) has dependents and does not remarry, that person may be allowed to claim Qualifying Widow(er) status for 2 more years.
R
Recapture
The repayment of a tax credit if requirements were not met by the taxpayer since claiming the credit.
Refund
The amount of money you receive back from the IRS when you have paid more taxes (usually through paycheck withholding) than you owe.
Refundable
A credit which will be paid to you as a refund if you owe no tax.
Report
To give information to the IRS, generally by filling out a form.
Resident Alien
A citizen of a foreign country who lives and works legally in the U.S.A. but is not a United States citizen. Resident aliens are subject to U.S. tax laws.
Roth IRA
A special kind of Individual Retirement Account named after Senator William Roth of Delaware. Contributions are not tax deductible, but interest and qualified withdrawals (after reaching retirement age) are completely tax-free.
S
Sales Tax
A tax on retail products, goods, and services. It is based on a certain percentage of the price, usually set by the state.
Self-Employment Tax
The tax paid by self-employed taxpayers to support Social Security and Medicare.
SEP (Simplified Employee Pension)
A retirement plan designed for self-employed taxpayers. Contributions are generally tax deductible.
Severance Pay
Also called Separation Pay. Money and/or benefits given to a laid-off or retiring employee upon termination of employment. Severance is generally considered taxable income.
SIMPLE (Savings Incentive Match Plan for Employees)
An employer-sponsored retirement plan designed for employees of small businesses, and is also available to self-employed taxpayers. Contributions are generally tax deductible and usually up to 3% of contribution amounts are matched by the employer.
Single
A filing status claimed by those who are unmarried, divorced, or legally separated and who do not qualify for Head of Household status.
Standard Deduction
A specific amount that differs by filing status. You may deduct this amount from your taxable income if you do not itemize deductions.
T
Tariff
A tax on imports.
Tax Avoidance
Using legal tax planning strategies to reduce your tax bill.
Tax Base
All resources available to the government for taxation. All of the nation’s taxable income added together.
Tax Bracket
A range of incomes that are taxed at a specified tax rate. Also, the bracket into which the last dollar of one’s income falls.
Tax Break
A general term for exemptions, credits, deductions, or any legal way to reduce your taxes.
Tax Burden
The total amount of taxes owed by the American people, or by a particular segment of the population.
Tax Code
The entire body of tax laws, regulations, and procedures.
Tax Cut
A reduction of tax rates.
Tax-Deferred
When taxes levied now are owed at a later time, such as interest on IRA contributions.
Tax Evasion
Illegally hiding income from the IRS, deliberately underpaying taxes, or using an abusive tax scheme.
Tax Liability
The total amount of taxes you owe.
Tax Rate
The percentage of income that is owed as a tax.
Tax Shelter
An investment, business, or other activity designed primarily to avoid or evade taxes.
Tax Year
The 12-month period covered by a tax return. Returns for a specific Tax Year are usually filed in the subsequent year.
Taxable Income
Your adjusted gross income reduced by all applicable exemptions, credits, and deductions. The amount of income that is taxed.
Taxpayer Advocate Service
The Taxpayer Advocate Service is an independent organization within the IRS in charge of resolving problems that may arise between a taxpayer and the IRS. Taxpayer advocates provide free and confidential advice, guidance, and representation. The IRS calls the Advocate Service “your voice inside the IRS”. There is at least one taxpayer advocate stationed in every state, as well as in Washington, D.C. and Puerto Rico.
Trust
A type of tax entity that manages a person’s assets during their life or after their death. A trust is a separate entity from an individual and is managed by an appointed trustee.
U
Unearned Income
Income which was not earned by working, such as investment income or gifts.
Use Tax
A special tax levied by a state on goods used in that state but purchased in another state.
V
Value-Added Tax (VAT)
A tax levied on a product at each stage of production, depending on the overall value added to the product at each stage. The consumer pays the accumulated taxes at the point of sale. For example, taxes may be attached to a car when the body is assembled, when the engine is added, and when the car is painted–and the buyer will pay all of these taxes to the car dealer, who passes them on to the government.
Voluntary Compliance
The concept that our tax system relies on taxpayers to pay the correct amount of taxes, on time, and of their own free will.
W
“Wealth Tax”
Another name for the Alternative Minimum Tax.
Withholding
Money held back from your paycheck and used to pay taxes. This amount is applied to your annual tax liability.
Withholding Allowance
An amount chosen on your Form W-4 which tells your employer how much money to withhold from your paycheck for taxes.


