Answer:
Chech the following explanation
Step-by-step explanation:
a) Ireland - Theta's US tax liability from Ireland is $3 billion * 21% = $0.63 billion. Effective tax rate on $6 billion will be 0.63 / 6 = 10.5%. Foreign taxes credit will be allowed.
Bermuda - $5 billion * 13.125% = $0.65625 billion with no credit of foreign taxes. The effective rate is 13.125%
b) If the Irish company declares 100% of its profits, there will be no tax and effective US tax rates will be 0%.