The great thing about working for someone else is that it saves you time on tax prep. Your taxable income, Social Security and Medicare taxes are all figured out on your federal W-2 form. Figuring out ...

Indices or indexes compare data for different time periods in order to discover underlying trends. Consumer price indices relate current prices to a fixed index for an earlier year to demonstrate how ...

A long list of other tax breaks, including the child tax credit, the American Opportunity Credit and the adoption credit, are tied to your modified adjusted gross income (MAGI). Your MAGI also ...

Adjusted gross income, or AGI, refers to your total income subject to tax, minus a few specific deductions. AGI is important, as it is used to determine your ability for certain tax credits and ...

When you own a business, you need to understand how much money you make compared to how much you spend. That means you need to grasp profit margins. But while it’s crucial to know how to calculate ...

Gross profit margin is a ratio that measures the percentage of revenue left after subtracting production costs. By indicating the profitability of a company's core business operations, gross profit ...

Jenni Fink is a senior editor at Newsweek, based in New York. She leads the National News team, reporting on politics and domestic issues. As a writer, she has covered domestic politics and ...