The interest rates paid on overpayments and underpayments remain the same in the fourth quarter of 2010 as they have been all year. Individuals will pay 4% on underpayments and receive interest of 4% on overpayments during this period. This rate has been in effect since April 1, 2009.
Source: Rev. Rul. 2010-21; 2010-39 IRB 1
A statutory term used to figure your profit or loss on a sale or exchange. Generally, it is sales proceeds plus mortgages assumed or taken subject to, less transaction expenses, such as commissions and legal costs.