See all 50 states on one map and compare side-by-side. Start 7-day free trial — no card required
Maine
Corporate Income Tax Rate at a Glance
Maine's top corporate income tax rate is 8.93%, applied as graduated brackets. This places Maine in the "High (8% or higher)" tier among U.S. states.
Rate Structure (Flat vs. Graduated)
Graduated brackets: 3.5% on first $350,000; 7.93% on $350,001-$1,050,000; 8.33% on $1,050,001-$3,500,000; 8.93% on income over $3,500,000.
Franchise Tax / Annual Privilege Tax
Maine imposes a Franchise Tax on financial institutions only, calculated based on either Maine assets (0.039%) or net income (1%). Non-financial corporations pay only the regular corporate income tax.
S-Corp & Pass-Through Treatment
Maine recognizes federal S-corp election. Pass-through entities may elect to pay tax at the entity level under Maine's PTE election (LD 1891, 2021).
Official State Revenue Department
For current corporate tax rules in Maine, consult the state's official source at https://www.maine.gov/revenue/. Rates and rules change annually — verify with a qualified tax professional before taking any action.
Related guides
More from Connecticut · Corporate Tax
- Connecticut → Arizona
- Connecticut → California
- Connecticut → Colorado
- Connecticut → District of Columbia
- Connecticut → Delaware
Moving to Maine from elsewhere · Corporate Tax
Corporate income tax rates change frequently as states enact reform packages and phase-down schedules. Always verify current rates with the state's department of revenue and your tax advisor before making business decisions. This information is for educational purposes only and is not tax or legal advice.