Answer:
a. Particulars Amount
Pre-tax income for 2015 $683,500
Less: Income tax expenses $205,050 ($683,500*30%)
Net Income for 2015 $478,450
b. Deferred tax liability = Temporary difference * Tax rate
= $165,500*30%
= $49,650
Income tax expense = Construction in process - Deferred tax liability
= $165,500 - $49,650
= $115,850
Date Account titles and Explanation Debit Credit
2015 Construction in progress $165,500
Deferred tax liability $49,650
Retained earnings $115,850
(To record deferred tax liability and retained earnings for 2015)