August 23, 2010 12:00 am

IRS Interest Rates Unchanged for Fourth Quarter

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

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Tax Glossary

Self-employment tax

Tax paid by self-employed persons to finance Social Security coverage. In 2007, there are two rates. A 12.4% rate applies to a taxable earnings base of $95,700 or less and a 2.9% rate applies to all net earnings.

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