Compare Bank & Credit Union Rates
Best high-yield savings rates
Compare published savings yields, money market accounts included, with minimums, requirements, collection dates and original sources.
Top savings rates
Showing 1–15 results in South Portland, ME
- Saco & Biddeford SavingsMutual High Yield SavingsSavings · $0 min · 0.10%–3.00% by balance
Bank · 1 branch
3.00%APY$300 a year on $10,000with conditionsRequirements
Product: An active Mutual Checking or Mutual Interest Checking account is required. Only one Mutual High Yield Savings allowed per primary customer. Converted to an Essential Money Market if the corresponding checking account is closed. $2.00 monthly service charge waived if $100.00 minimum balance is kept.
Qualified rate · 2.96% interest rate · $2 monthly fee · Effective Oct 3, 2026
Rate by balance
Rate by balance for Mutual High Yield Savings Balance APY Up to $100,000Your amount 3.00% $100,000 and upAPY for this tier will range from 0.10% to 3.00% depending on the balance in the account. 0.10% Rate checked
More details - 2.07%APY$207 a year on $10,000with conditions
Requirements
Product: 207 Rewards Checking Account required. No monthly maintenance service charge.
Offer: Requires 207 Rewards Checking Account. No monthly maintenance service charge.
Qualified rate · No monthly fee · Effective Oct 3, 2026
Rate by balance
Rate by balance for 207 Savings Balance APY Up to $250,000Your amount 2.07% $250,000 and up 0.00% Rate checked
More details - Maine Community BankReserve High-Yield Money MarketReserve High-Yield Money Market · $1 min · 2.00%–3.50% by balance
Bank · 1 branch
2.00%APY$200 a year on $10,000Requirements
Product: Tiered interest-bearing account. Six preauthorized transfers per statement cycle. No monthly maintenance service charge.
Offer: Stated minimum opening balance is required to obtain APY.
No monthly fee · Effective Oct 15, 2026
Rate by balance
Rate by balance for Reserve High-Yield Money Market Balance APY Up to $50,000Your amount 2.00% $50,000 – $100,000 2.15% $100,000 – $175,000 2.35% $175,000 – $250,000 2.80% $250,000 – $500,000 3.10% $500,000 – $1,000,000 3.35% $1,000,000 and up 3.50% Rate checked
More details - Coast Line Credit UnionMoney MarketMoney Market · $2,500 min · 1.00%–2.45% by balance
Credit union · 1 branch
1.35%APY$135 a year on $10,000Requirements
Product: Membership required ($5.00 minimum amount to open membership). $2,500 minimum balance to earn interest. Unlimited deposits and withdrawals.
1.00% interest rate · Effective Oct 3, 2026
Rate by balance
Rate by balance for Money Market Balance APY $2,500 – $10,000 1.00% $10,000 – $50,000Your amount 1.35% $50,000 – $100,000 2.05% $100,000 and up 2.45% Rate checked
More details - Atlantic Federal Credit UnionMoney Market CheckingMoney Market Checking · $2,500 min · 0.50%–3.10% by balance
Credit union · 1 branch
1.35%APY$135 a year on $10,000Requirements
Product: Unlimited transactions, including the ability to write checks. If balance falls below $2,500, the account will not earn dividends.
Offer: If balance falls below $2,500, the account will not earn dividends.
0.50% interest rate · Effective Oct 1, 2025
Rate by balance
Rate by balance for Money Market Checking Balance APY $2,500 – $4,999 0.50% $5,000 – $9,999 1.00% $10,000 – $49,999Your amount 1.35% $50,000 – $99,999 1.85% $100,000 – $249,999 2.00% $250,000 – $499,999 2.65% $500,000 – $749,999 2.80% $750,000 – $999,999 2.90% $1,000,000 and up 3.10% Rate checked
More details - Atlantic Federal Credit UnionMoney Market SavingsMoney Market Savings · $1,000 min · 0.50%–3.10% by balance
Credit union · 1 branch
1.35%APY$135 a year on $10,000Requirements
Product: Limited monthly transactions. If balance falls below $1,000, the account will not earn dividends.
Offer: If balance falls below $1,000, the account will not earn dividends.
0.50% interest rate · Effective Oct 1, 2025
Rate by balance
Rate by balance for Money Market Savings Balance APY $1,000 – $4,999 0.50% $5,000 – $9,999 1.00% $10,000 – $49,999Your amount 1.35% $50,000 – $99,999 1.85% $100,000 – $249,999 2.00% $250,000 – $499,999 2.65% $500,000 – $749,999 2.80% $750,000 – $999,999 2.90% $1,000,000 and up 3.10% Rate checked
More details - Town & Country Federal Credit UnionMoney MarketMoney Market · $2,000 min · 1.01%–3.04% by balance
Credit union · 2 branches
1.26%APY$126 a year on $10,000Requirements
Product: Dividends compounded monthly and credited monthly. Rates may change after the account is open.
Offer: Dividends compounded monthly and credited monthly.
1.00% interest rate · Compounded monthly
Rate by balance
Rate by balance for Money Market Balance APY $2,000 – $9,999 1.01% $10,000 – $24,999Your amount 1.26% $25,000 – $49,999 1.51% $50,000 – $99,999 2.27% $100,000 – $249,999 2.53% $250,000 and up 3.04% Rate checked
More details - Evergreen Credit UnionMoney MarketMoney Market · $2,500 min · 0.40%–2.10% by balance
Credit union · 1 branch
0.40%APY$40 a year on $10,000Requirements
Product: Minimum to earn dividends is $2,500.00. Membership eligibility requirements apply (live, work, worship, or attend school in Androscoggin, Cumberland, Lincoln, Oxford, Sagadahoc, or York counties, or immediate relative). No monthly maintenance fees.
0.40% interest rate · No monthly fee · Effective Oct 8, 2026
Rate by balance
Rate by balance for Money Market Balance APY $2,500 – $15,000Your amount 0.40% $15,000 – $50,000 0.50% $50,000 – $100,000 1.10% $100,000 – $250,000 1.30% $250,000 and up 2.10% Rate checked
More details - Maine Community BankChampion High-Yield Money MarketChampion High-Yield Money Market · $1 min · 0.25%–2.00% by balance
Bank · 1 branch
0.40%APY$40 a year on $10,000Requirements
Product: Tiered interest-bearing account. Six preauthorized transfers per statement cycle. No monthly maintenance service charge.
Offer: Stated minimum opening balance is required to obtain APY.
No monthly fee · Effective Oct 15, 2026
Rate by balance
Rate by balance for Champion High-Yield Money Market Balance APY Up to $10,000 0.25% $10,000 – $25,000Your amount 0.40% $25,000 – $50,000 0.50% $50,000 – $100,000 1.00% $100,000 – $250,000 2.00% $250,000 and up 2.00% Rate checked
More details - 0.25%APY$25 a year on $10,000
Requirements
Product: No need to have a checking account with Bangor Savings Bank.
0.00% interest rate · $10 monthly fee · Effective Oct 1, 2026
Rate by balance
Rate by balance for Market Rate Savings Balance APY Up to $5,000 0.00% $5,000 – $10,000 0.15% $10,000 – $25,000Your amount 0.25% $25,000 – $50,000 0.40% $50,000 and up 0.40% Rate checked
More details - Bangor Savings BankBenefit Money MarketBenefit Money Market · $5,000 min · 0.00%–0.60% by balance
Bank · 1 branch
0.25%APY$25 a year on $10,000with conditionsRequirements
Product: Must have or open a personal checking account with Bangor Savings Bank.
Offer: Must have or open a personal checking account with Bangor Savings Bank.
Qualified rate · 0.00% interest rate · No monthly fee · Effective Oct 1, 2026
Rate by balance
Rate by balance for Benefit Money Market Balance APY Up to $5,000 0.00% $5,000 – $25,000Your amount 0.25% $25,000 – $50,000 0.45% $50,000 – $100,000 0.50% $100,000 – $250,000 0.60% $250,000 and up 0.60% Rate checked
More details - 0.25%APY$25 a year on $10,000
Requirements
Offer: Compounded and credited quarterly. Calculated by average daily balance method. Minimum required balance of $25 to obtain the Annual Percentage Yield. Maximum of 6 automatic transfers to cover overdrafts per month.
0.25% interest rate · Effective Aug 17, 2021
Rate checked
More details - Maine Community BankEssential Money MarketEssential Money Market · $1 min · 0.15%–1.50% by balance
Bank · 1 branch
0.15%APY$15 a year on $10,000Requirements
Product: Tiered interest-bearing account. Six preauthorized transfers per statement cycle. No monthly maintenance service charge.
Offer: Stated minimum opening balance is required to obtain APY.
No monthly fee · Effective Oct 15, 2026
Rate by balance
Rate by balance for Essential Money Market Balance APY Up to $20,000Your amount 0.15% $20,000 – $50,000 0.20% $50,000 – $100,000 0.25% $100,000 – $250,000 0.25% $250,000 – $750,000 1.50% $750,000 and up 1.50% Rate checked
More details - 0.10%APY$10 a year on $10,000with conditions
Requirements
Product: Monthly fee of $15 waived by maintaining a minimum daily balance of $10,000 or linking an eligible TD Beyond or TD Complete checking account. Standard and Rate Bump APY tiers available (Rate bump requires linking an eligible TD account).
Offer: Standard APY
Qualified rate · $15 monthly fee · Effective Oct 3, 2026
Rate by balance
Rate by balance for TD Signature Savings Balance APY Up to $10,000 0.01% $10,000 – $25,000Your amountRate Bump APY with linked eligible TD account 0.10% $25,000 – $50,000Rate Bump APY with linked eligible TD account 0.25% $50,000 – $100,000Rate Bump APY with linked eligible TD account 0.50% $100,000 – $250,000Rate Bump APY with linked eligible TD account 2.00% $250,000 – $500,000Rate Bump APY with linked eligible TD account 2.50% $500,000 – $1,000,000Rate Bump APY with linked eligible TD account 2.50% $1,000,000 and upRate Bump APY with linked eligible TD account 2.50% Rate checked
More details - 0.10%APY$10 a year on $10,000
Requirements
Product: Establishes membership at Town & Country Federal Credit Union; must maintain $25 within account at all times to remain a member.
Offer: Dividends compounded monthly and credited monthly. Rates may change after the account is open.
0.10% interest rate · Compounded monthly · No monthly fee · Effective Oct 1, 2026
Rate checked
More details
Carrot Score rates each institution on all its CD, savings, auto loan and credit card rates, not just the account shown. How we rank
What savings accounts pay in South Portland, ME
37 accounts at 15 banks and credit unions · checked Oct 22
- Typical
- 0.05%
- Top 10% from
- 1.35%
- Banks, typical
- 0.05%
- Credit unions, typical
- 0.18%
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Portland, ME metro
Top Carrot institutions
Ranked across their CDs, savings, auto loans and credit cards. How scores work
- Dirigo Federal Credit UnionCredit union · 1 branch
- Trademark Federal Credit UnionCredit union · 1 branch
- Atlantic Federal Credit UnionCredit union · 12 branches