Harold and Tina Skagg, both over age 65, file a joint return in 2013. They have adjusted gross income for the year of $64,700 and $8,000 of itemized deductions. The Skaggs Solution Use standard deduction which is more instead of itemized. Standard deduction will be $14600 $64,700 - $14600 = $50,100 First $17,850 is at 10%. The remaining is at 15% Total tax = $17,850(.10) = ($50,100 - $17850)(.15) Total tax =$1,785 + $3668 = $5453 If taxable income is over .