Tower Corp. began operations on January 1, 2009. For financial reporting, Tower recognizes revenues from all sales under the accrual method. However, in its income tax returns, Tower reports qualifying sales under the installment method. Tower’s gross profit on these installment sales under each method was as follows:

Year Accrual method Installment method 2009 $1,600,000 $ 600,000 2010 2,600,000 1,400,000 The income tax rate is 30% for 2009 and future years. There are no other temporary or permanent differences. In its December 31, 2010 balance sheet, what amount should Tower report as a liability for deferred income taxes?

a. $840,000

b. $660,000

c. $600,000

d. $360,000