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Kentuckycorporate tax inMaine
High — top rate 8% or higher

Maine

Top Rate
8.93%
Rate Structure
Graduated
Franchise Tax
Yes
Gross Receipts Tax
No
S-Corp Recognized
Yes

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.

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Related guides

Maine Department of Revenue: https://www.maine.gov/revenue/
Law last updated: 2025Row last reviewed: Apr 26, 2026

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.