Marine Credit Union CD & Share Certificate Rates — October 2026
As of October 22, 2026, Marine Credit Union's highest tracked CD (share certificate) rate is 4.25% APY on a 13-month promotional CD ($1,000 minimum). That is 2.4 times the FDIC national average for 12-month CDs (1.76%).
Tracking began .
Marine Credit Union CD & share certificate rates
Membership required. Certificate specials only (currently 6, 9 and 13 months), with a $1,000 minimum balance to earn dividends. Standard certificate rates are not included. Early withdrawal penalties may apply.
| Term | Product | APY |
|---|---|---|
| 6 months | Certificate Special Promotional | 4.00%Top 23% · $10k reference sampleVerified October 22, 2026 |
| 9 months | Certificate Special Promotional | 4.00%Top 29% · $10k reference sampleVerified October 22, 2026 |
| 13 months | Certificate Special Promotional | 4.25%Verified October 22, 2026 |
APY = annual percentage yield. "vs. Treasury" compares each APY with the Treasury yield for the same term on 2026-10-21 (converted to APY). Treasury interest is exempt from state income tax; see the T-bill vs. CD calculator.
What are Marine Credit Union's best CD rates by term?
Marine Credit Union's best rate is 4.25% APY on 13 months, verified October 22, 2026.
- 6 mo4.00%
- 9 mo4.00%
- 13 mo4.25%
How much interest could a Marine Credit Union CD earn?
Estimated interest at maturity for the displayed institution quotes, before tax or early withdrawal penalties. Each estimate assumes the quoted APY applies to that balance and interest stays deposited. Estimates use known deposit tiers. Upper balance limits and membership, relationship or new-money requirements must be confirmed with the institution; these are conditional estimates, not personalized offers.
$460.72 interest · $10,460.72 at maturity on $10,000.00.
4.25% APY · 13 months · Certificate Special · Promotional · verified October 22, 2026.
Before tax; interest remains deposited. Confirm all product conditions. Estimate one-year purchasing power.
| Term | $5,000 | $10,000 | $25,000 | $50,000 |
|---|---|---|---|---|
| 6 months | $99.294.00% APY · Certificate Special · Promotional | $198.594.00% APY · Certificate Special · Promotional | $496.474.00% APY · Certificate Special · Promotional | $992.934.00% APY · Certificate Special · Promotional |
| 9 months | $149.404.00% APY · Certificate Special · Promotional | $298.804.00% APY · Certificate Special · Promotional | $747.004.00% APY · Certificate Special · Promotional | $1,494.014.00% APY · Certificate Special · Promotional |
| 13 months | $230.364.25% APY · Certificate Special · Promotional | $460.724.25% APY · Certificate Special · Promotional | $1,151.814.25% APY · Certificate Special · Promotional | $2,303.624.25% APY · Certificate Special · Promotional |
How Marine Credit Union compares
Compare the displayed terms, minimums and quote locations. Membership, relationship and new-money conditions may apply. Institution quotes below use the exact 395-day term. Regional peers quote a shared operating state; nationwide best is limited to our tracked sample.
This quote ranks 13 of 64 tracked institutions with fresh 395-day quotes (ties share a rank). Each other institution contributes its highest APY for that exact term; minimums and eligibility can differ.
| Institution / benchmark | Term | Minimum | Quote coverage | APY | Verified / source date |
|---|---|---|---|---|---|
| Marine Credit Union (this institution)Certificate Special · Promotional | 13 months | $1,000 | Coverage: IA, WI | 4.25% | October 22, 2026 |
| CIBC Bank USA (CIBC Agility)CIBC Agility™ Certificate of Deposit (CD) · Standard | 13 months | $1,000 | Nationwide; check eligibility | 4.50% | October 22, 2026 |
| Sallie Mae BankCertificate of Deposit (CD) · Standard | 13 months | $2,500 | Nationwide; check eligibility | 4.50% | October 22, 2026 |
| Associated BankCD special · Promotional | 13 months | $5,000 | Coverage: IA, IL, MN, MO, NE, WI | 4.40% | October 22, 2026 |
| Del Norte Credit Union (highest tracked APY for this term)Share Certificate - $100,000+ Minimum Balance · Promotional | 13 months | $100,000 | Coverage: NM | 5.23% | October 22, 2026 |
| Treasury (APY-equivalent) | 13 months (term-matched estimate) | Depends on purchase method | Federal; interest exempt from state income tax | 4.60% | 2026-10-21 |
Rate changes
See changes across all tracked institutions
No changes since we started tracking Marine Credit Union on October 22, 2026.
About Marine Credit Union
- Legal name
- Marine Credit Union
- Regulator ID
- NCUA 66752
- Headquarters
- La Crosse, WI
- Available in
- IA, WI
- Total assets
- $1.1 billion
- Also known as
- Website
- www.marinecu.com
Source: rates read from https://www.marinecu.com/save-spend/share-certificates/. See the page text we read.
Frequently asked questions
What is the highest CD rate at Marine Credit Union?
Among the rates we track, 4.25% APY on a 13-month promotional CD, as of October 22, 2026.
What is the minimum deposit for a Marine Credit Union CD?
The lowest minimum we found is $1,000.
How does Marine Credit Union's best CD rate compare with Treasury yields?
4.25% APY is −0.35% versus the 13-month Treasury yield of 4.60% (APY-equivalent) on 2026-10-21. Treasury interest is also exempt from state income tax.
Is 4.25% a good CD rate?
It is 2.4 times the FDIC national average for a similar term (1.76% as of 2026-10-19), which is a deposit-weighted average across all U.S. banks and credit unions. Online banks and promotional CDs often pay several times the national average.
Are Marine Credit Union CDs insured?
Marine Credit Union is a federally insured credit union (NCUA 66752). Share certificates are insured by the NCUA up to $250,000 per member, per ownership category.
What is a share certificate at Marine Credit Union?
A share certificate is the credit union equivalent of a bank CD: a term deposit that pays a stated yield when its conditions are met. Membership requirements, minimum deposits and early withdrawal terms depend on the credit union and product.
How often is this page updated?
We check Marine Credit Union's rate page every day. The rates above were last verified on October 22, 2026.
More credit union certificate rates
Rates are copied from Marine Credit Union's website and may change at any time. Confirm terms, minimums and eligibility with Marine Credit Union before opening an account. This page is not financial advice.