Is a sweep program as safe as a regular HYSA?

Each underlying deposit is held at an FDIC-insured partner bank up to $250,000. The sweep program is the bookkeeping layer, your money is at the partner banks, not at the brokerage. Always download the partner-bank list and confirm no single bank holds more than $250k of your money.

What about IntraFi / ICS / CDARS?

Same idea: a network that splits your deposit across member banks to expand FDIC coverage. The trade-off is slightly lower APY than a direct HYSA, in exchange for keeping the relationship at one local bank.

Does the FDIC limit apply per account or per person?

Per depositor, per insured bank, per ownership category. A joint account counts as $250k per co-owner, so a married couple has $500k of coverage at one bank under a single joint account.

Best picks · Saving

Best Savings Accounts for Large Balances ($100k+) in 2026

By Yinka Olayokun Published May 12, 2026 Reviewed May 12, 2026

Quick Answer

For balances above $100,000 the right setup isn't a single account, it's a cash-management or sweep account that automatically spreads deposits across multiple FDIC-insured partner banks, lifting coverage from $250,000 to several million while still paying near-top APY. For balances under $250,000, a standard top-tier HYSA is simpler and pays the same rate.

How we picked

Posted APY on balances above $100,000 (some banks cap the top rate at lower tiers)
Effective FDIC coverage, sweep programs should disclose the partner-bank network
Withdrawal speed for large transfers (ACH, wire, same-day)
Fees on large outbound wires (often $25–$35, meaningful at this balance)
How the bank prices balances above $1M (some drop the APY by 50+ bps)

Multi-bank cash sweep program

Best for: Balances of $250k–$5M

Automatically spreads deposits across 10–20 partner banks for multi-million-dollar FDIC coverage at a single login.

• Effective FDIC coverage: $2M–$5M typical
• APY: tracks top HYSA tier
• Monthly fee: $0
• Same-day ACH out, free wires above $250k common

Pros

No manual account-opening across multiple banks
Coverage scales as balance grows
Daily liquidity

Cons

Partner-bank list can change, re-check quarterly
Some programs cap APY above $1M

Top-tier online HYSA

Best for: Single household, balance under $250k

Same APY as our overall pick, once you're under the FDIC limit, simpler is better.

• APY: top of the market
• Monthly fee: $0
• FDIC: $250k per depositor per bank
• 1–2 business day ACH

Pros

No paperwork to track partner-bank exposure
Familiar single-bank statements for taxes

Cons

Coverage caps at $250k per ownership category
Manual splitting required above the cap

Treasury-only money market fund

Best for: State-tax savers in CA/NY/MA

Not FDIC-insured but backed by U.S. Treasuries, and interest is exempt from state income tax.

• Yield: tracks 4-week T-Bill
• Expense ratio: 0.10–0.30%
• Backed by Treasuries (not FDIC)
• Same-day liquidity at most brokers

Pros

State-tax-free interest is a 30–50 bps real boost in high-tax states
No FDIC ceiling

Cons

Not FDIC-insured (Treasury risk only, but technically distinct)
Yield resets weekly

Why $100k changes the math

Under $250,000, FDIC coverage is automatic at any insured bank. Above $250,000 at a single bank, the excess is uninsured. Most large-balance savers solve this in one of three ways: split across multiple banks manually, use a sweep program that does it for you, or move to U.S. Treasuries via a money market fund.

The decision usually hinges on whether you'd rather optimize for simplicity (sweep), state-tax efficiency (Treasury MMF), or absolute top APY (manual splitting). At today's rates the spread between options is under 30 bps, small enough that your tax bracket usually decides.

What changed for 2026

Two major brokerage cash-management programs raised their partner-bank counts above 25, pushing effective FDIC coverage past $5 million. That makes them competitive with manual splitting even for high-net-worth households.

Related quick-reads

Frequently Asked Questions

Is a sweep program as safe as a regular HYSA?: Each underlying deposit is held at an FDIC-insured partner bank up to $250,000. The sweep program is the bookkeeping layer, your money is at the partner banks, not at the brokerage. Always download the partner-bank list and confirm no single bank holds more than $250k of your money.
What about IntraFi / ICS / CDARS?: Same idea: a network that splits your deposit across member banks to expand FDIC coverage. The trade-off is slightly lower APY than a direct HYSA, in exchange for keeping the relationship at one local bank.
Does the FDIC limit apply per account or per person?: Per depositor, per insured bank, per ownership category. A joint account counts as $250k per co-owner, so a married couple has $500k of coverage at one bank under a single joint account.

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