Maine: Corporations

Tax Rate (2010) 
Corporate Marginal Income Tax Rate 3.5% > $0
7.93% > $25,000
8.33% > $75,000
8.93% > $250,000
Individual Income Tax Rate 6.5% > $0
6.85% > $250,000
Sales Tax Rate 5%
Business Tax Climate Index Rankings (2011) 
Business Tax Climate Index 31
Corporate Tax Index Rank 43
Individual Income Tax Index Rank 37
Sales Tax Index Rank 6
Unemployment Insurance Tax Index Rank 44
Property Tax Index Rank 26

Sources:
Tax Foundation (2011)

Glossary