Mercantile Bank CD Rates — October 2026
As of October 22, 2026, Mercantile Bank's highest tracked CD rate is 3.95% APY on a 6-month CD ($500 minimum). That is 2.8 times the FDIC national average for 6-month CDs (1.39%). Standard CD rates range from 0.50% to 3.95% APY.
Tracking began .
Mercantile Bank CD rates
Published personal CD table, including standard terms and 11- and 25-month online CDs. Minimum opening deposit is $500. CDs renew automatically and early withdrawal penalties may apply. Confirm current opening eligibility and product availability with the bank.
| Term | Product | APY |
|---|---|---|
| 1 month | Certificate of Deposit | 0.50%Verified October 22, 2026 |
| 3 months | Certificate of Deposit | 2.01%Verified October 22, 2026 |
| 6 months | Certificate of Deposit | 3.95%Verified October 22, 2026 |
| 11 months | Certificate of Deposit - Online Promotional | 3.95%Verified October 22, 2026 |
| 12 months | Certificate of Deposit | 3.85%Verified October 22, 2026 |
| 18 months | Certificate of Deposit | 3.60%Verified October 22, 2026 |
| 24 months | Certificate of Deposit | 3.50%Verified October 22, 2026 |
| 25 months | Certificate of Deposit - Online Promotional | 3.50%Verified October 22, 2026 |
| 36 months | Certificate of Deposit | 3.03%Verified October 22, 2026 |
| 48 months | Certificate of Deposit | 3.03%Verified October 22, 2026 |
| 60 months | Certificate of Deposit | 3.03%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.
Watch the renewal rate
The best promotional rate here is 3.95% APY (11 months). The standard rate for a similar term is 3.85% APY (12 months). If the CD renews at the standard rate when it matures, $10,000 would earn about $10 less per year. Check the account terms and set a reminder before maturity.
What are Mercantile Bank's best CD rates by term?
Mercantile Bank's best rate is 3.95% APY on 6 months, verified October 22, 2026.
- 1 mo0.50%
- 3 mo2.01%
- 6 mo3.95%
- 11 mo3.95%
- 12 mo3.85%
- 18 mo3.60%
- 24 mo3.50%
- 25 mo3.50%
- 36 mo3.03%
- 48 mo3.03%
- 60 mo3.03%
How much interest could a Mercantile Bank 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.
| Term | $5,000 | $10,000 | $25,000 | $50,000 |
|---|---|---|---|---|
| 3 months | $24.872.01% APY · Certificate of Deposit · Standard | $49.742.01% APY · Certificate of Deposit · Standard | $124.352.01% APY · Certificate of Deposit · Standard | $248.692.01% APY · Certificate of Deposit · Standard |
| 6 months | $98.063.95% APY · Certificate of Deposit · Standard | $196.133.95% APY · Certificate of Deposit · Standard | $490.323.95% APY · Certificate of Deposit · Standard | $980.643.95% APY · Certificate of Deposit · Standard |
| 11 months | $180.983.95% APY · Certificate of Deposit - Online · Promotional | $361.953.95% APY · Certificate of Deposit - Online · Promotional | $904.883.95% APY · Certificate of Deposit - Online · Promotional | $1,809.773.95% APY · Certificate of Deposit - Online · Promotional |
| 12 months | $192.503.85% APY · Certificate of Deposit · Standard | $385.003.85% APY · Certificate of Deposit · Standard | $962.503.85% APY · Certificate of Deposit · Standard | $1,925.003.85% APY · Certificate of Deposit · Standard |
| 18 months | $272.673.60% APY · Certificate of Deposit · Standard | $545.343.60% APY · Certificate of Deposit · Standard | $1,363.363.60% APY · Certificate of Deposit · Standard | $2,726.713.60% APY · Certificate of Deposit · Standard |
| 24 months | $356.123.50% APY · Certificate of Deposit · Standard | $712.253.50% APY · Certificate of Deposit · Standard | $1,780.623.50% APY · Certificate of Deposit · Standard | $3,561.253.50% APY · Certificate of Deposit · Standard |
| 60 months | $804.823.03% APY · Certificate of Deposit · Standard | $1,609.633.03% APY · Certificate of Deposit · Standard | $4,024.083.03% APY · Certificate of Deposit · Standard | $8,048.173.03% APY · Certificate of Deposit · Standard |
How Mercantile Bank compares
Compare the displayed terms, minimums and quote locations. Membership, relationship and new-money conditions may apply. Institution quotes below use the exact 183-day term. Regional peers quote a shared operating state; nationwide best is limited to our tracked sample.
This quote ranks 27 of 100 tracked institutions with fresh 183-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 |
|---|---|---|---|---|---|
| Mercantile Bank (this institution)Certificate of Deposit · Standard | 6 months | $500 | Coverage: MI | 3.95% | October 22, 2026 |
| Wings Credit Union (formerly Ent)My Savings Builder Certificate · Special | 6 months | $25 | Coverage: CO, FL, GA, MI, MN, WI | 4.80% | October 22, 2026 |
| Popular DirectCertificate of Deposit · Standard | 6 months | $10,000 | Nationwide; check eligibility | 4.35% | October 22, 2026 |
| E*TRADE (Morgan Stanley Private Bank)Bank CD · Standard | 6 months | Not stated | Nationwide; check eligibility | 4.20% | October 22, 2026 |
| Empower Federal Credit Union (highest tracked APY for this term)Share Certificate · Standard | 6 months | $500 | Coverage: NY | 5.00% | October 22, 2026 |
| Treasury (APY-equivalent) | 6 months (term-matched estimate) | Depends on purchase method | Federal; interest exempt from state income tax | 4.40% | 2026-10-21 |
Rate changes
See changes across all tracked institutions
No changes since we started tracking Mercantile Bank on October 22, 2026.
About Mercantile Bank
- Legal name
- Mercantile Bank
- Regulator ID
- FDIC 34598
- Headquarters
- Grand Rapids, MI
- Available in
- MI
- Total assets
- $6.2 billion
- Also known as
- Website
- www.mercbank.com
Source: rates read from https://mercbank.com/personal-banking/cds/merc. See the page text we read.
Frequently asked questions
What is the highest CD rate at Mercantile Bank?
Among the rates we track, 3.95% APY on a 6-month CD, as of October 22, 2026.
What is the minimum deposit for a Mercantile Bank CD?
The lowest minimum we found is $500.
How does Mercantile Bank's best CD rate compare with Treasury yields?
3.95% APY is −0.45% versus the 6-month Treasury yield of 4.40% (APY-equivalent) on 2026-10-21. Treasury interest is also exempt from state income tax.
Is 3.95% a good CD rate?
It is 2.8 times the FDIC national average for a similar term (1.39% 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 Mercantile Bank CDs insured?
Mercantile Bank is an FDIC-insured bank (FDIC 34598). Deposits are insured up to $250,000 per depositor, per ownership category.
How often is this page updated?
We check Mercantile Bank's rate page every day. The rates above were last verified on October 22, 2026.
More bank CD rates
Rates are copied from Mercantile Bank's website and may change at any time. Confirm terms, minimums and eligibility with Mercantile Bank before opening an account. This page is not financial advice.