ICS (IntraFi Cash Service, formerly Insured Cash Sweep) Explained
Short answer
ICS is the IntraFi Cash Service, originally called Insured Cash Sweep. Your bank splits a large cash balance into pieces under the $250,000 FDIC limit and places them in demand deposit or money market deposit accounts at other FDIC-insured banks in the IntraFi network, so the whole balance can be insured while you keep one bank, one statement and, for demand deposits, daily access. It is the cash version of CDARS, which does the same for CDs; your bank sets the ICS rate.
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CD vs MYGA, after tax
What $100,000 earns in 5 years: CD vs MYGA, after tax
Rates used: CD 5.00%, the top nationally available 5-year CD (Bankrate, October 14, 2026); change it to the rate you are offered. MYGA 5.95%, the best A-rated rate we track as of October 13, 2026: Delaware Life Pinnacle Plus 5-year (AM Best A-, negative outlook, 7/31/2026), $100,000 and up, effective October 6, 2026 (Delaware Life rate sheet).
| CD, interest taxed every year | $121,081 |
|---|---|
| MYGA, tax-deferred, before tax | $133,507 |
| MYGA after paying tax on all the interest at withdrawal | $126,136 |
| Tax deferral alone adds about | $674 |
| MYGA ahead of the CD, after tax | $5,055 |
Assumes 22% federal and 0% state income tax, no withdrawals, rates held for the whole term. MYGA interest is taxed as ordinary income when you withdraw it, not as capital gains. Gains taken before age 59 1/2 can owe a 10% IRS penalty, and cashing out early can cost a surrender charge. In an IRA both grow tax-deferred, so the edge there is the rate alone. Bank and credit union deposits are FDIC or NCUA insured up to the limits; a MYGA is backed by the issuing insurer's claims-paying ability and your state's guaranty association up to its limits, not the FDIC. General education, not tax, legal or financial advice.
What ICS Is, and How It Differs From CDARS
ICS, which IntraFi now calls the IntraFi Cash Service (it launched as Insured Cash Sweep), is the demand-deposit equivalent of CDARS, run by the same parent company (IntraFi, formerly Promontory Interfinancial Network). The mechanics are conceptually identical:
- CDARS: places term deposits (CDs) across member banks.
- ICS: places demand deposits (checking, money market) across member banks.
You deposit your large balance with one ICS-member bank; that bank places the funds across recipient ICS-member banks in $250K slices; each slice is fully FDIC-insured at the recipient bank; you get one statement and one banking relationship.
The key difference: ICS supports daily liquidity. You can move funds in and out of the ICS-placed accounts as easily as a regular checking or money market account, while maintaining full FDIC coverage on the entire balance.
Why Daily Liquidity Matters
For large depositors (businesses with operating cash, nonprofits with reserves, individuals with concentrated wealth, trusts with periodic distributions), the trade-off historically has been:
- Daily liquidity at one bank, with FDIC coverage capped at $250K per ownership category.
- OR multiple bank relationships managed manually for FDIC coverage, with the operational overhead of managing many accounts.
- OR money market funds (not FDIC-insured but generally low credit risk and good yield).
ICS resolves the first two options into one: full daily liquidity AND full FDIC coverage AND one relationship bank. It's particularly valued by:
- Business owners holding 60-90 days of payroll in liquid accounts.
- Nonprofits and foundations holding endowment cash.
- Real estate professionals holding earnest money and 1031 exchange proceeds.
- Trusts and estates holding cash pending distribution.
- Wealthy individuals between investments who don't want money market fund credit risk.
Mechanics of ICS Placement
When you commit funds to ICS through your bank:
- The bank opens an ICS-linked account on your records.
- The bank coordinates with IntraFi to allocate your funds across recipient ICS-member banks in $250K slices.
- You see one balance on your statement reflecting the total across all placements.
- Withdrawals are pulled from the placement network automatically. You write a check or initiate a wire from your relationship bank, and the funds flow through.
- You can typically move funds between ICS and other accounts at your relationship bank daily.
Interest is paid at a single rate negotiated with your relationship bank, applied across all placements. ICS supports both interest-bearing and non-interest-bearing structures.
ICS Yield Compared to HYSAs and Money Market Funds
ICS interest rates are whatever your relationship bank offers, so get the quote in writing and compare it with dated alternatives:
| Product | Yield (date) | FDIC? | Liquidity |
|---|---|---|---|
| ICS at your bank | Your bank’s quote | Yes (via placements under $250K each) | Daily (demand deposit option) |
| Top online savings accounts | 3.00% to 4.00% APY (bank sites, Sept 24, 2026) | Yes, $250K per bank | Daily |
| Treasury money market funds | 3.50% to 3.76% 7-day yield, e.g. SNSXX, VUSXX (fund sites, Sept 23, 2026) | No (holds Treasuries) | Daily |
| 13-week T-bill | 4.11% coupon equivalent (U.S. Treasury, Oct 2, 2026) | No (direct U.S. obligation) | Sell before maturity or hold 13 weeks |
| National average money market deposit account | 0.63% (FDIC, Sept 21, 2026) | Yes | Daily |
IntraFi says ICS and CDARS offer returns that compare to Treasuries and government money market funds. In practice it depends on your bank. For balances above $250,000, ICS gives FDIC coverage that no single-bank account can, and you pay for that convenience in whatever gap your bank’s rate leaves against the alternatives above.
When ICS Is the Right Tool
- You have $500K+ in liquid cash and want full FDIC coverage.
- You're a business owner with significant operating cash and a primary banking relationship you want to keep.
- You need daily liquidity and can't lock funds into CDs.
- You don't want the credit risk of money market funds, even Treasury-backed ones.
- You're a fiduciary (trustee, executor, nonprofit officer) and want to demonstrate maximum protection without spreading deposits across multiple banks.
When ICS Isn't the Right Tool
- You have under $500K. A single HYSA plus careful FDIC coverage management gets you to $250K-$500K of insured demand deposits with higher yield than ICS.
- You're willing to manage multiple HYSAs. Three HYSAs at three banks gives you $750K of FDIC coverage at higher rates than ICS.
- You don't have an established relationship with an ICS-member bank. Switching banks just to access ICS may not be worth the disruption.
- You're a sophisticated investor comfortable with Treasury money market funds. Treasury MMFs offer similar effective safety at higher yields, without FDIC formalism.
ICS vs Money Market Fund, The Credit Distinction
This is the philosophical question that determines whether ICS justifies its yield discount. Money market funds (especially Treasury MMFs) are extremely safe in practice. The 2008 Reserve Primary Fund "breaking the buck" was the only major MMF failure in modern U.S. history, and Treasury MMFs have not broken the buck in any meaningful event. The credit risk on Treasury MMFs is essentially U.S. government risk.
ICS gives you actual deposit insurance, statutorily backed by the U.S. government through the FDIC. For belt-and-suspenders fiduciaries who want explicit insurance, ICS wins. For investors comfortable with implicit Treasury-level safety, Treasury MMFs typically deliver a small yield pickup. The choice is preference, not arithmetic.
Where MYGAs Fit
MYGAs are not a liquidity product. They have surrender charges and aren't designed for funds you'll move in and out daily. For the bucket of large savings that you've earmarked for multi-year fixed-rate yield, A-rated 5-year MYGAs topped out around 5.50% to 6.05% on October 14, 2026 (public carrier rate sheets), guaranteed for the term and backed by the claims-paying ability of the issuing insurer. The decision tree: ICS for the slice of money that needs daily liquidity and full FDIC coverage; MYGAs for the slice destined for multi-year fixed-rate yield where you can accept surrender restrictions.
What is an ICS account?
It is an account at your own bank whose balance is actually held, behind the scenes, in deposit accounts at many other FDIC-insured network banks. You see one balance and one statement. IntraFi places the funds in demand deposit accounts (daily access) or money market deposit accounts, and the accounts are titled so FDIC pass-through coverage applies to you at each bank. IntraFi is not a bank itself, and it states that no depositor has ever lost a penny placed using ICS and CDARS.
ICS vs CDARS: which one do you need?
Use ICS for cash you may need any day: operating cash, an escrow, sale proceeds waiting for a decision. Use CDARS for money you can lock for a set term, 4 weeks to 3 years per IntraFi, usually at a higher rate. Many depositors split: a working balance in ICS and a CD ladder through CDARS or brokered CDs.
From my desk: the ICS question I ask first
I talk with retirees and business sellers holding seven figures of cash after a sale. As a licensed insurance producer, I do not earn anything on bank deposits, so I treat ICS as a neutral tool. My first question is how much of the balance will really be spent in the next 90 days. That slice belongs in ICS or a money fund; the rest is usually overpaying for daily liquidity.
Example (dated rates above): $1,500,000 sits in ICS. If the bank pays 1 point less than a 13-week T-bill at 4.11%, that gap is $15,000 a year. Keeping $300,000 in ICS for bills and moving $1.2M into T-bills or a Treasury money fund cuts the gap to $3,000 while every dollar stays government-backed or FDIC-insured. Compare also savings accounts vs money funds and stacking FDIC coverage yourself.
Frequently Asked Questions
Related Reading
- CDARS network explained
- FDIC insurance explained
- Stacking FDIC coverage
- Finding CD rates over 5%
- MYGA rates (longer-term alternative)
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Hans Goldstein · 213-414-2808 · NPN 20602398, independent licensed insurance producer appointed with multiple A-rated carriers
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Disclosure
This article reflects publicly available information and approximate rates as of the date stated above. CD rates, brokered CD inventories, FDIC and NCUA rules, and carrier MYGA rates change frequently, often daily. Always verify current values against the issuing institution's official disclosure documents before committing funds. This is general education, not a personal recommendation or an offer of any product. Hans Goldstein is an independent licensed insurance producer (NPN 20602398) appointed with multiple A-rated carriers across the annuity market; this article is not an endorsement of any specific bank, brokerage, credit union, or carrier. No compensation has been received from any reviewed institution in connection with the publication of this article. FDIC and NCUA insurance limits, ownership category rules, and the operations of CDARS, ICS, and other IntraFi programs are governed by federal regulation and the program documents; always confirm coverage with the institution and refer to FDIC.gov, NCUA.gov, or IntraFi.com for the official rules. MYGA carrier financial strength ratings, state guaranty fund limits, and tax treatment are subject to change. Always read the actual contract and consult a licensed advisor before purchasing any annuity, CD, or insurance product.