WE MADE LESS MONEY, ALL DEDUCTIONS WERE THE SAME . LAST YEAR WE GOT A OKLAHOMA STATE REFUND AND THIS YEAR WE OWE OVER 1000.00

[SweetieJean · Accepted solution]

One possibility: Oklahoma's state Earned Income Tax Credit equals 5 percent of the federal EITC.  Since your income went down, your EIC could have as well.

Look at your 2015 and 2016 state returns side by side.