Rates for a head-of-household taxpayer are 10% of taxable income up to $11,950 and 15% thereafter up to $45,550. Earlene Brown, head of household, earned $41,700. She itemized the following deductions: $6,600 interest on her house, $2,100 state tax, and a donation of $575 to her church. She took exemptions of $3,650 each for herself and her daughter. Compute the amount of income tax before credits.