Maine Form 1040ME is the state individual income tax return filed with Maine Revenue Services (MRS) by residents, part-year residents, and nonresidents with Maine income. The return starts from your federal adjusted gross income, applies Maine-specific additions, subtractions, deductions, and credits, and is due April 15. You can file it for free through the Maine Tax Portal or mail a paper copy.
Who Has to File
If you were a full-year Maine resident and had to file a federal return, you also have to file Form 1040ME. The same is true any year you owe Maine income tax, even if the IRS didn’t require a federal return from you.1Maine State Legislature. Maine Code 36 – Persons Required to Make Returns of Income One narrow exception: a resident whose only reason for filing federally was to claim the federal earned income credit doesn’t need to file a Maine return for that year.
Nonresidents file when they have Maine income tax liability from Maine-source income. Part-year residents who lived in the state for any portion of the year and earned income during that time follow the same rule.
Because Maine ties its filing threshold to the federal standard deduction, the practical trigger for the 2025 tax year (filed in 2026) is gross income of $15,750 for single filers, $31,500 for married couples filing jointly, or $23,625 for head of household.2Internal Revenue Service. Credits and Deductions for Individuals File anyway if you had Maine tax withheld from your pay or qualify for a refundable credit like the Property Tax Fairness Credit; that’s how you get the money back.
When It’s Due and How to Get More Time
Form 1040ME is due April 15 for calendar-year filers. If April 15 lands on a weekend or holiday, the deadline moves to the next business day.3Maine Revenue Services. List of Forms and Due Dates
Maine grants an automatic six-month extension to October 15. You don’t file anything to request it. The catch is that the extension only covers filing, not paying. To avoid a late-payment penalty, you must pay at least 90 percent of your tax by the original April 15 deadline.4Maine Revenue Services. Individual Income Tax FAQ Interest runs on any unpaid balance from April 15 forward regardless. To send an extension payment, use Form 1040EXT-ME or pay through the Maine Tax Portal.
What to Have Ready
Form 1040ME builds on your federal return, so finish federal Form 1040 first. The Maine calculation starts from your federal adjusted gross income on line 11. Pull together:
- Social Security numbers or ITINs for you, your spouse, and any dependents
- Your completed federal Form 1040
- W-2s and 1099s showing Maine income and withholding
- Records of any retirement distributions, if you plan to claim the pension income deduction
- Property tax bills or rent receipts, if you plan to claim the Property Tax Fairness Credit
- Documentation of any estimated tax payments you made during the year
Your filing status on Form 1040ME has to match your federal filing status. The form also asks whether you were a full-year resident, part-year resident, or nonresident, which drives which schedules you attach.
How Maine Calculates Your Tax
Maine takes your federal AGI and then adjusts it with two schedules before applying its rates.
Schedule 1A (additions) captures income Maine taxes that the federal government doesn’t. The most common item is interest on municipal bonds issued by states other than Maine. Certain bonus depreciation and Section 179 differences also show up here when Maine doesn’t conform to federal treatment.
Schedule 1S (subtractions) removes income Maine excludes. The big one is the pension income deduction, which lets each taxpayer deduct up to $48,216 of eligible pension income for 2025. That cap is reduced dollar-for-dollar by any Social Security and railroad retirement benefits you received during the year, taxable or not.5Maine Revenue Services. 2025 Income Tax General Instructions Military retirement pay, civil service pensions, and distributions from qualified retirement plans all count. Other common subtractions include interest on U.S. government obligations like Treasury bonds and any Social Security benefits that were taxable on your federal return.
Standard or Itemized Deduction
After adjustments, you take either the standard deduction or itemize, matching your federal choice. Maine’s standard deduction tracks the federal amounts: $15,750 single, $31,500 joint for 2025.2Internal Revenue Service. Credits and Deductions for Individuals
If you itemize, Maine modifies your federal itemized deductions. State and local income or sales taxes come out (Maine doesn’t let you deduct its own tax), and property taxes you lost to the federal SALT cap get added back. Total Maine itemized deductions are capped at $28,350, with medical and dental expenses exempt from the cap. A phase-out further reduces the amount for higher-income filers.6Maine Legislature. Maine Code 36 – Itemized Deductions
Tax Rates for 2025
Maine uses three graduated brackets. For single filers and married filing separately:7Maine Revenue Services. Individual Income Tax 2025 Rates
- 5.8% on taxable income up to $26,800
- 6.75% from $26,800 to $63,450
- 7.15% above $63,450
For married filing jointly and surviving spouses:
- 5.8% up to $53,600
- 6.75% from $53,600 to $126,900
- 7.15% above $126,900
Head-of-household filers use a separate schedule in the Form 1040ME instructions. The bracket thresholds adjust for inflation each year.
Credits That Lower Your Bill or Create a Refund
Three credits matter for most individual filers, and all three are refundable, meaning they can generate a refund even if you owe no tax.
Property Tax Fairness Credit. This offsets property taxes or rent paid on your Maine home. Maine adjusted gross income has to be at or below $40,000. The credit equals 40 percent of the amount by which your property tax or rent-equivalent exceeds 10 percent of your income, with a maximum of $300, or $400 if you or your spouse is 70 or older.8Maine Legislature. Maine Code 36 – Property Tax Fairness Credit Claim it on Schedule PTFC/STFC.9Maine Revenue Services. Property Tax Fairness Credit Summary
Sales Tax Fairness Credit. A flat credit of $125 for single filers and $175 for joint filers or heads of household, with small additions if you claim the federal child tax credit. It phases out as income rises and isn’t available to married couples filing separately.10Maine State Legislature. Maine Code 36 – Sales Tax Fairness Credit It’s claimed on the same Schedule PTFC/STFC.
Maine Earned Income Credit. If you qualified for the federal EITC, Maine stacks a state credit on top: 25 percent of the federal amount if you have qualifying children, 50 percent if you don’t. You can also qualify if you filed federally with an ITIN or if you’re at least 18 with no qualifying children.11Maine Revenue Services. Maine Earned Income Credit
Filing Electronically or on Paper
The Maine Tax Portal (MTP) is the free online system for filing Form 1040ME directly with MRS. It replaced the older I-File system.12Maine Revenue Services. Welcome to Maine Electronic Filing You enter your federal and state information, the portal handles the math, and your entries carry over for reference the next year. Commercial tax software that supports Maine e-filing works too.
If you prefer paper, download the current form and instructions from the MRS website. Maine uses different mailing addresses depending on whether you’re enclosing a payment or expecting a refund, and the addresses can change year to year, so check the instructions before you send anything. Paper returns take considerably longer to process than electronic ones, especially during the April and May peak.
Checking Your Refund
MRS has an online refund tracker on its homepage labeled “Check Individual Income Tax Refund Status.”13Maine Revenue Services. Maine Revenue Services It shows whether your return was received, is being processed, or has had a refund issued. Wait at least 21 days after e-filing before checking. Paper filers should expect a longer wait before any status appears. Choosing direct deposit on your return gets the money to your bank faster than a mailed check.
Penalties and Interest
Filing late or underpaying costs real money. Late-filing penalties are $25 or 10 percent of the tax due, whichever is greater, if you file before MRS issues a formal demand or within 60 days of one. More than 60 days after a formal demand, the penalty jumps to $25 or 25 percent of the tax due, whichever is greater. These penalties apply only when the tax liability on the return exceeds $25.14Maine State Legislature. Maine Code 36 – Penalties
Interest also accrues on unpaid tax from the original due date, at an annual rate of 9 percent for 2026, compounded monthly.15Maine Revenue Services. Interest Rates, 1992 to Present
You can sidestep the late-payment penalty by paying at least 90 percent of what you owe by April 15, even if you use the automatic extension to file later.4Maine Revenue Services. Individual Income Tax FAQ Pay on time even when you need more time to file.