@ican711nm,
In 2010 under the Bush tax bill, if you are married filing jointly and your taxable income is $16,700,
then your federal income taxes will be $1,670.
In 2011--if Obama doesn't change the personal income tax from the Clinton tax bill--if you are married filing jointly and your taxable income is $16,700,
then your federal income taxes will be $2,505.
Your 2011 income tax will be $835 more than your 2011 income tax bill.