Definition starting with I

Inflation-adjusted return is the gain or loss on an investment after removing the effect of inflation, showing the true change in purchasing power. Investors and students use this real return...

Income, in its broadest U.S. federal tax sense, is money, property, goods, or services you receive, and the IRS generally taxes most of it unless a specific rule says otherwise....

The IRS incidental expenses definition for U.S. federal tax purposes is a narrow category limited to fees and tips paid to porters, baggage carriers, bellhops, hotel staff, and staff on...

A TSP in-service withdrawal allows you to take money out of your Thrift Savings Plan account while you are still actively employed in federal civilian service or the uniformed services....