Best banks in Maine range from long-standing regional names to national giants and high-yield online banks — and the right pick depends on whether you value local branches, the highest savings rate, or the biggest sign-up bonus. This guide rounds up the best banks in Maine, the top credit unions, the online banks Maine residents use most, and the bank bonuses worth grabbing in June 2026.
| Category | Good Options in Maine |
|---|---|
| Regional banks | Bangor Savings Bank, Camden National Bank, Bar Harbor Bank & Trust, Machias Savings Bank, Norway Savings Bank |
| National banks | KeyBank, TD Bank, M&T Bank, Chase |
| Online banks | Ally Bank, SoFi, Capital One 360, Discover |
| Credit unions | Atlantic Federal Credit Union, Maine State Credit Union, Bangor Federal Credit Union, Town & Country Federal Credit Union, University Credit Union |
In This Guide:
Best Banks in Maine
Top regional banks serving Maine include:
- Bangor Savings Bank
- Camden National Bank
- Bar Harbor Bank & Trust
- Machias Savings Bank
- Norway Savings Bank
The largest bank by presence in Maine is Bangor Savings Bank ($5.59 billion in deposits, largest bank headquartered in Maine).
Best for checking: Bangor Savings Bank — no monthly maintenance fees, ATM fee reimbursements, named to Forbes World’s Best Banks 2026
Best for savings: Northeast Bank — Maine-headquartered, offers high-yield savings at 2.25%-2.75% APY locally; for top APY, online banks like Axos or CIT reach 4.10%-4.31%
Regional banks often combine local branch access with competitive accounts, which is why they tend to score well with Maine customers. Top high-yield savings accounts available to Maine residents pay around 4.00% to 4.31% (top online high-yield savings available to Maine residents; local Maine banks/CUs typically 2.25%-4.00%) in June 2026.
National Banks Available in Maine
If you want a big branch and ATM network, the major national banks all operate in Maine:
- KeyBank
- TD Bank
- M&T Bank
- Chase
National banks are convenient but rarely pay the best savings rates — pair one with a high-yield online account for the best of both.
Best Credit Unions in Maine
Well-regarded Maine credit unions include:
- Atlantic Federal Credit Union
- Maine State Credit Union
- Bangor Federal Credit Union
- Town & Country Federal Credit Union
- University Credit Union
Credit unions are member-owned and often beat banks on fees and savings rates, though membership may require living, working, or worshiping in a specific area.
Best Online Banks for Maine Residents
Online banks have no branches but pay far higher savings rates and charge fewer fees. Popular options for Maine residents:
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- Ally Bank
- SoFi
- Capital One 360
- Discover
Bank Sign-Up Bonuses in Maine
One bonus worth a look for Maine residents right now: Bar Harbor Bank & Trust $200-$400 checking bonus (Simple Checking $200, Relationship Rewards Checking $400); KeyBank $300 Smart Checking bonus with $2,000 direct deposit; TD Bank $400 Beyond Checking bonus. Bonuses change often, so check our live list for the latest.
A sign-up bonus can be worth $100-$400 for opening an account and meeting a direct-deposit or balance requirement. Use our Bonus Yield Calculator to see the true annual return on any offer, and check that your paycheck qualifies with the Direct Deposit Checker.
How to Choose a Bank in Maine
- Fees: Look for no monthly maintenance fee or an easy waiver.
- Savings rate (APY): Online and credit-union accounts usually win here.
- Access: Want branches? Favor a regional or national bank in Maine.
- Bonus: A sign-up bonus is free money if you would open the account anyway.
- Insurance: Confirm FDIC (banks) or NCUA (credit unions) coverage.
Official Sources
- Maine Bureau of Financial Institutions (under Dept. of Professional & Financial Regulation): https://www.maine.gov/pfr/financialinstitutions/
- FDIC BankFind: fdic.gov
- NCUA (credit unions): ncua.gov
Other Maine notes: Maine has a strong community banking tradition — 9 of its largest banks by deposits are locally headquartered mutual savings banks or community banks; Bar Harbor Bank & Trust was named one of America’s Best Regional Banks by Newsweek for the 5th consecutive year; Atlantic FCU is the state’s largest credit union with over $1 billion in assets; credit unions are widely used across the state with 67 credit unions serving Maine residents
Checking, Savings, and CDs Explained
Most Maine banks offer the same core accounts:
- Checking — for everyday spending and direct deposit. Look for no monthly fee.
- Savings — for your emergency fund. Online banks pay the highest rates.
- Money market — a savings account with limited check-writing.
- CDs — lock money for a set term in exchange for a higher fixed rate.
A common setup for Maine residents is a no-fee checking account at a local bank plus a high-yield savings account at an online bank.
How Bank Sign-Up Bonuses Work in Maine
Banks pay cash bonuses — often $100 to $400 — to win new customers. To earn one you typically open a new checking or savings account, then meet a requirement such as receiving a set amount of direct deposit or keeping a minimum balance for a few months. The bonus is usually paid within 90 days. As long as you would open the account anyway, it is essentially free money. We track current offers open to Maine residents on our listings page.
Best Banks in Maine: Frequently Asked Questions
What is the best bank in Maine? There is no single best bank — it depends on whether you value branches, the highest savings rate, or the biggest bonus. Compare a regional bank, a national bank, and an online bank before deciding.
Are credit unions better than banks in Maine? Credit unions are member-owned and often charge lower fees and pay better rates, but you must be eligible to join and may have fewer branches.
Which bank has the best sign-up bonus? Bonuses change monthly. National and online banks usually offer the largest ones open to Maine residents — check our live list.
Is my money safe? Yes — as long as your bank is FDIC-insured or your credit union is NCUA-insured, deposits are protected up to $250,000 per depositor.
Related Maine Guides
- Maine Crypto Laws Guide
- Maine Crypto Tax Guide
- Best Banks by State
- Browse all current bank & crypto bonuses
This best banks in Maine guide was last verified in June 2026.
Informational only — not financial, tax, or legal advice. Crypto and tax rules change frequently; verify current details with the official sources linked above or a licensed professional before acting.