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A

ability to pay

A concept of tax fairness that states that people with different amounts of wealth or different amounts of income should pay tax at different rates. Wealth includes assets such as houses, cars, stocks, bonds, and savings accounts. Income includes wages, interest and dividends, and other payments.

adjusted gross income

Gross income reduced by certain amounts, such as a deductible IRA contribution or student loan interest

amount due

Money that taxpayers must pay to the government when the total tax is greater than their total tax payments

appeal

To call for a review of an IRS decision or proposed adjustment.

Authorized IRS e-file Provider

A business authorized by the IRS to participate in the IRS e-file Program. The business may be a sole proprietorship, a partnership, a corporation, or an organization. Authorized IRS e-file Providers include Electronic Return Originators (EROs), Transmitters, Intermediate Service Providers, and Software Developers. These categories are not mutually exclusive. For example, an ERO can at the same time, be a Transmitter, a Software Developer, or an Intermediate Service Provider, depending on the function being performed.