1. This credit – still available for 2010 – equals 6.2 percent of a taxpayer’s earned income. The maximum credit for a married couple filing a joint return is $800 and $400 for other taxpayers.

2. Eligible self-employed taxpayers can benefit from the credit by evaluating their expected income tax liability and, if they are eligible, by making the appropriate adjustments to the amounts of their estimated tax payments. (more…)