| The IRS tax laws are based on a graduated tax rate, and not a flat tax, hence
your tax rate is calculated based on the table below;
From the information you have provided, clearly it seems that your taxable income appears to be approximately $200,000. Assuming no pension plans contributions are made, then the following appears your tax liability;
=$42,170 + (200,000-188,450) x 33%
=$42,170 + (11,550) x 33%
=$42,170 +3,812
=$45,982
TABLE FOR JOINTLY FILED TAX RETURN:
$0 to $15,100 10% of the amount over $0
$15,100 to $61,300 $1,510.00 plus 15% of the amount over 15,100
$61,300 to $123,700 $8,440.00 plus 25% of the amount over 61,300
$123,700 to $188,450 $24,040.00 plus 28% of the amount over 123,700
$188,450 to $336,550 $42,170.00 plus 33% of the amount over 188,450
$336,550 no limit $91,043.00 plus 35% of the amount over 336,550! | 
