Maine Estimated Tax Payments Calculator

2026 rules

Enter your expected income to see what to send Maine and the IRS each quarter.

Your numbers

Filing status

Self-employment or business profit

W-2 wages

Other income (interest, dividends, gains, rental)

Maine tax withheld from paychecks

Last year's Maine tax (total on your return)

Leave at 0 to use this year's estimate only.

Federal tax withheld

Last year's federal tax (Form 1040 line 24)

Result

Maine quarterly payment$828

Projected federal tax (incl. SE tax)$17,147
Projected Maine tax$3,678
Maine amount to pay in estimates$3,310
Maine payment 1 · Apr 15, 2026$828
Maine payment 2 · Jun 15, 2026$828
Maine payment 3 · Sep 15, 2026$828
Maine payment 4 · Jan 15, 2027$828
Federal amount to pay in estimates$15,433
Federal payment · Apr 15, 2026$3,858
Federal payment · Jun 15, 2026$3,858
Federal payment · Sep 15, 2026$3,858
Federal payment · Jan 15, 2027$3,858
First payment, state and federal$4,686

Maine at a glance

Due dates: Apr 15, 2026, Jun 15, 2026, Sep 15, 2026, Jan 15, 2027
Rates: Maine taxes income at 3 rates from 5.80% to 9.15%.

A 2% surtax applies to taxable income over $1,000,000 ($1,500,000 joint).

Maine tax brackets for 2026

Single (taxable income)
Rate	Taxable income
5.80%	$0 – $27,400
6.75%	$27,400 – $64,850
7.15%	over $64,850

Married filing jointly
Rate	Taxable income
5.80%	$0 – $54,850
6.75%	$54,850 – $129,750
7.15%	over $129,750

Plus a 2% surtax on taxable income over $1,000,000 ($1,500,000 joint).

Questions

When are Maine estimated tax payments due for 2026?

Apr 15, 2026, Jun 15, 2026, Sep 15, 2026, Jan 15, 2027.

How much do I need to pay to avoid a penalty?

This calculator uses the federal safe harbor: 90% of this year's tax, or 100% of last year's (110% if your AGI is over $150,000), less withholding. A few states use a different share of the current year's tax, so check the Maine estimated-tax instructions too.