Maine § 5200. - Imposition and rate of tax

Full text of Maine Maine Revised Statutes § 5200. — Imposition and rate of tax, with citation guidance and answers to common questions.

§ 5200.. Imposition and rate of tax

1.  Imposition and rate of tax prior to 2018.  For tax years beginning before January 1, 2018, a tax is imposed for each taxable year at the following rates on each taxable corporation and on each group of corporations that derives income from a unitary business carried on by 2 or more members of an affiliated group:

If the income is:The tax is:
Not over $25,0003.5% of the income
$25,000 but not over $75,000$875 plus 7.93% of the excess over $25,000
$75,000 but not over $250,000$4,840 plus 8.33% of the excess over $75,000
$250,000 or more$19,418 plus 8.93% of the excess over $250,000

In the case of an affiliated group of corporations engaged in a unitary business with activity taxable only by Maine, the rates provided in this subsection are applied only to the first $250,000 of the Maine net income of the entire group and must be apportioned equally among the taxable corporations unless those taxable corporations jointly elect a different apportionment. The balance of the Maine net income of the entire group is taxed at 8.93%.  

In the case of an affiliated group of corporations engaged in a unitary business with activity taxable both within and without this State, the rates provided in this subsection are applied only to the first $250,000 of the net income of the entire group and must be apportioned equally among the taxable corporations unless those taxable corporations jointly elect a different apportionment. The balance of the net income of the entire group is taxed at 8.93%.  

1-A.  Imposition and rate of tax beginning 2018.  For tax years beginning on or after January 1, 2018, a tax is imposed for each taxable year at the following rates on each taxable corporation and on each group of corporations that derives income from a unitary business carried on by 2 or more members of an affiliated group:

If the income is:The tax is:
Not over $350,0003.5% of the income
$350,000 but not over $1,050,000$12,250 plus 7.93% of the excess over $350,000
$1,050,000 but not over $3,500,000$67,760 plus 8.33% of the excess over $1,050,000
$3,500,000 or more$271,845 plus 8.93% of the excess over $3,500,000

In the case of an affiliated group of corporations engaged in a unitary business with activity taxable only by Maine, the rates provided in this subsection are applied only to the first $3,500,000 of the Maine net income of the entire group and must be apportioned equally among the taxable corporations unless those taxable corporations jointly elect a different apportionment. The balance of the Maine net income of the entire group is taxed at 8.93%.  

In the case of an affiliated group of corporations engaged in a unitary business with activity taxable both within and without this State, the rates provided in this subsection are applied only to the first $3,500,000 of the net income of the entire group and must be apportioned equally among the taxable corporations unless those taxable corporations jointly elect a different apportionment. The balance of the net income of the entire group is taxed at 8.93%.  

2.  Business activity only within Maine.  For purposes of subsections 1 and 1‑A, with respect to a taxable corporation or group of corporations that derive income from a unitary business carried on by 2 or more members of an affiliated group with income from business activity that is taxable only by Maine, "income" means Maine net income.

3.  Business activity within and outside Maine.  For purposes of subsections 1 and 1‑A, with respect to a taxable corporation with income from business activity that is taxable both within and without this State, "income" means the corporation's net income. The tax amount computed under subsections 1 and 1‑A must then be apportioned under the provisions of chapter 821 to determine the amount of tax imposed on that corporation.

4.  Business activity within and outside Maine; unitary business.  For purposes of subsections 1 and 1‑A, with respect to taxable corporations that derive income from a unitary business carried on by 2 or more members of an affiliated group with business activity that is taxable both within and without this State, "income" means the net income of the entire group. The tax amount computed under subsections 1 and 1‑A must then be apportioned under the provisions of chapter 821 for the entire group to determine the amount of tax imposed on the taxable corporations.

5.  Net income.  For purposes of this section, "net income" means, for any taxable year, the taxable income of the taxpayer for that taxable year under the laws of the United States as modified by section 5200‑A.

6.  Taxable in another state.  For purposes of this section, a taxpayer is taxable in another state if in that state the taxpayer is subject to a net income tax, a franchise tax measured by net income, a franchise tax for the privilege of doing business, or a corporate stock tax, or that state has jurisdiction to subject the taxpayer to a net income tax regardless of whether, in fact, the state does or does not.

Source: official Maine text · Last verified 2026-08-27

Frequently Asked Questions About Maine § 5200.

What does Maine Revised Statutes § 5200. cover?

Section 5200. ("Imposition and rate of tax") is part of the Maine Revised Statutes, the codified statutory law of Maine. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.

How do I cite Maine § 5200.?

A common citation format is "Maine Revised Statutes § 5200." (Maine). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.

Is this the official text of Maine law?

No. This page is for research and education and may not include the most recent amendments. For official current law, check the Maine official source linked on this page or consult a licensed Maine attorney.

How does Maine § 5200. apply to my situation?

Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in Maine can advise on how this section applies to you. Contact your state or local bar association for a referral.

Sources & Verification

Not legal advice. Verify against the official source and consult a licensed attorney in Maine.