If you hold a substantial cash balance, today’s jumbo money market accounts (MMAs) offer a significant opportunity to earn far more interest than standard savings accounts. As of November 17, 2025, top-tier jumbo MMAs are paying around 4.4% APY, a stark contrast to the national average of just 0.59% APY.
This guide highlights the best jumbo MMA options, demonstrating how much more you can earn and helping you determine if a jumbo MMA is the right fit for balances of $100,000 or more.
What Is a Jumbo Money Market Account?
A jumbo MMA is a deposit account designed for larger balances, typically $100,000 or more. It offers a higher annual percentage yield (APY) in exchange for maintaining a larger balance. Most jumbo MMAs also provide check-writing, debit card, or ATM access, blending features of savings and checking accounts.
These accounts are generally low-risk, principal-protected, and insured by the FDIC or NCUA up to $250,000 per depositor, per insured bank.
Top Jumbo Money Market Rates for November 17, 2025
The following rates are current as of today, but can change. Always confirm directly with the institution before opening an account.
1. First Internet Bank: Best Overall Rate (4.42% APY)
First Internet Bank leads the market with a 4.42% APY on balances of $1,000,000.01 or more. The bank also offers competitive rates on lower balances, making it an attractive option for high-net-worth savers.
- APY: 4.42% on $1,000,000.01+
- Minimum to Open: $100
- Fees: $5 monthly fee, waived with $4,000+ average daily balance
- Access: ATM card, fee reimbursements available.
2. America First Credit Union: High APY for Members (Up to 4.10% APY)
America First Credit Union delivers competitive jumbo MMA rates for members, with APYs reaching 4.10% on very large balances ($1,000,000+).
- APY: Up to 4.10% on large balances
- Minimum: Jumbo tiers start around $100,000
- Fees: No monthly maintenance fees on many accounts
- Insurance: NCUA-insured.
3. Discover Bank: Reliable Jumbo Option (3.55% APY)
Discover Bank’s MMA offers up to 3.55% APY on balances of $100,000+, with slightly lower rates on smaller amounts.
- APY: Up to 3.55% on $100,000+
- Minimum: Around $2,500
- Fees: No monthly maintenance fee
- Access: Debit card, strong online tools.
4. Frost Bank: For Very Large Balances (Up to 3.15% APY)
Frost Bank’s jumbo MMA is geared towards substantial deposits, with APYs up to 3.15% on $20 million or more.
- APY: Up to 3.15% on $20 million+
- Minimum: $20 million
- Best For: Businesses or ultra-high-net-worth households.
5. Connexus Credit Union: Solid Rates with Membership (3.01% APY)
Connexus Credit Union offers up to 3.01% APY on jumbo balances ($1,000,000+), plus competitive yields on lower tiers.
- APY: Up to 3.01%
- Minimum: $1,000,000+ for jumbo rate
- Insurance: NCUA-backed.
How Much More Can You Earn?
The difference between average and top jumbo MMA rates is significant.
- National Average: 0.59% APY
- Top Jumbo MMA (First Internet Bank): 4.42% APY
On a $1 million balance, this translates to roughly $38,000 more in annual interest with a top jumbo MMA.
Are Jumbo Money Market Rates Likely to Change?
Short-term rates remain elevated, but future changes depend on the Federal Reserve’s policies. If the Fed cuts rates, jumbo MMAs could decrease. This makes it prudent to consider:
- Jumbo MMAs: For flexibility.
- Short-Term CDs or Treasury Bills: For more predictable yields.
Choosing the Right Jumbo Money Market Account
When comparing accounts, consider:
- APY: Aim for rates well above the national average.
- Balance Tiers: Ensure your balance qualifies for the top rate.
- Fees: Watch for monthly fees and withdrawal limits.
- Access: Consider check-writing, debit card, or ATM access.
- Insurance: Stay within FDIC or NCUA limits or spread funds across institutions.
Final Take: Maximize Your Cash Today
If you have $100,000 or more in cash, today’s jumbo money market rates offer a rare combination of high yield, safety, and flexibility. Earning around 4% to 4.4% APY instead of the 0.59% national average can add thousands of dollars in annual interest without locking up your money.
Key Takeaways:
- Meet the minimum balance requirements.
- Stay informed about fee waivers.
- Ensure your deposits are within insurance limits.
Consider pairing a jumbo MMA with short-term CDs or Treasury Bills for extra stability. Review your options regularly to capitalize on changing rates
