Answer:
$800,000
Explanation:
The computation of the taxes paid by the company in 2013 is shown below:
Year Taxable Income Carry forward amount Year-end amount
2010 -$4,000,000 $0
2011 $1,000,000 - $4,000,000 $3,000,000
2012 $2,000,000 -$3,000,000 $1,000,000
2013 $3,000,000 -$1,000,000 $2,000,000
Now the tax paid is
= $2,000,000 × 40%
= $800,000