My Cash Setup: Checking and Liquid Savings (2025/2024 Year-End)

Although I continue to monitor the best interest rates out there, in 2024 I made the conscious decision to tone down my rate-chasing and look for a lower maintenance set up that still gets a solid interest rate on my cash. Warning: This is going to be an informal, rambling post with a lot of personal opinions. Let me know what you think in the comments. I’ll list them by most activity to least activity.

Fidelity Cash Management Account (Direct Deposit and Internal Push)
I consider the Fidelity Cash Management Account my primary cashflow account. The vast majority of my household cash flows are direct deposit into my CMA, and then bill payment out via their BillPay service. In other words, I have to manually schedule any money going out. I like that I can transfer money quickly to and from my other Fidelity brokerage accounts, if necessary.

The Fidelity CMA is not a bank account. It is a full brokerage account with bank features bolted-on like a debit card, check-writing, and Bill Pay. The core position is the Fidelity Government Money Market Fund (SPAXX), which has a 4.01% 7-day yield as of 1/12/25. However, at ~40% US Government Obligations in 2023, it did not meet the requirements of having interest exempt from state taxes for California, Connecticut, and New York.

However, I use automatic recurring purchase system to keep it mostly in Fidelity Treasury Only Money Market Fund (FDLXX), which has a 4.03% 7-day yield as of 1/12/25. At ~90% US Government Obligations in 2023, it did meet the requirements of having interest exempt from state taxes for California, Connecticut, and New York. If you assume a 10% state income tax rate, this works out to a tax-effective yield of ~4.4%.

Money market funds are not FDIC-insured, but they are highly-regulated after the 2008 financial crisis and I am comfortable with their safety as they hold 90% Treasury bonds and as long as I am buying from a reputable name like Fidelity.

Fidelity uses various third parties to provide their banking features. The Fidelity debit card is issued by Leader Bank, and the debit card program is administered by BNY Mellon Investment Servicing Trust Company. Fidelity works with UMB, NA to process checks and ACH transfers. The ACH routing number for Fidelity accounts is 101205681 and belongs to UMB, NA. If you experience fraud from using the debit card, then you will have to deal with BNY Mellon. These third-party providers do not have the same level of customer service reputation as Fidelity, and Fidelity seems to punt to them, and I wish to avoid dealing with any of that.

Accordingly, I never use the Fidelity Debit Card (it is locked), and I never give out the ACH routing number and account number linked to my Fidelity CMA account (besides direct deposit). Therefore, no outside entity should have the ability to “pull” money out of my CMA account. My Fidelity CMA account is also on “Fidelity Lockdown” which prevents an unauthorized ACAT transfer of my entire account. (Lockdown does not interfere with ACH transfers.)

A reader asked if Fidelity should be treated as a “Fintech” to avoid since they use a third-party to provide some of their banking services. As you can see, I do treat them with extra care because whenever there are extra parties involved, there is room for confusion and blaming each other. However, the problem with many fintechs is that they open up what is called a “FBO” (For Benefit Of) account at their partner banks, which is a big pooled account of all their customers’ money mixed together, and then the fintech or middleman keeps a ledger of individual account balances. Even though there are routing numbers and account numbers, the bank does not open an individual account for everyone. What happens when the ledger from the fintech isn’t kept accurately? How do they split up the big pool of money? Ask the Yotta app users who completely lost access to their funds for several months, and many are still waiting to this day. Apparently, if the middleman or fintech company fails, it’s a poo show. If the bank itself failed, then the depositors would supposedly have been covered.

In my case, most funds are invested in a SEC-regulated money market fund from Fidelity inside an SIPC-insured brokerage fund.

Ally Checking and Savings (ATM card, checks, Venmo, etc)
For a long time, Ally was my primary checking and savings account. Even though they are an online bank with no physical branches and thus lower overhead costs, it still offered solid customer service and well, it simply knows to be a traditional bank. I have deposited large paper checks remotely, made large wire transfers, made large ACH transfers regularly, and used their ATM card around the world. My limited interactions found a knowledgeable human on the other side of the phone. Live chat is also available.

Their website interface is also clear and reliable, with the ability to link many external accounts (many of which won’t otherwise initiate transfers themselves) and make reasonably fast transfers between all of them. For each transfer, Ally will clearly tell me ahead of time the date that the funds will be pulled from the source account, and also the date that the funds will arrive at the destination account. I’ve moved over a million dollars in aggregate around, chasing various bonuses and bringing it back. Ally never bothered me.

The interest rate is 3.80% APY as of 1/13/25, and while that isn’t horrible, Ally used to keep themselves closer to the top rates. Given the differential is now up to a full 1% APY higher at my other options when taking into account the state tax exemption, that was enough to move some funds out. I still keep enough money at Ally to cover other cash needs (ATM card, checks, Venmo, etc).

The Ally ATM card has domestic ATM rebates (up to $10 per statement cycle) and does not charge a fee on their side on international withdrawals. If I am facing a lot of international ATM fees, I can unlock my Fidelity ATM card temporarily for the rebates. However, in reality, I’d rather deal with Ally rather than Fidelity/BNY Mellon if I have a problem with a foreign ATM skimmer or something, so I just use my reliable Ally ATM card, pay the $5 or whatever, and take all the cash out I need in one transaction per trip.

Vanguard Treasury Money Market Fund
One of the main draws of keeping a Vanguard account remains that they don’t play any funny games with cash sweep. Fidelity charges what I would say is a reasonable amount for its services, while Schwab straight-up hopes you aren’t paying attention while they pay you nearly nothing. Your cash sweep is the Vanguard Federal Money Market Fund (VMFXX), which has a 4.27 7-day yield as of 1/12/25. However, based on history it also may not qualify for state tax exemptions in any given tax year.

(Keep in mind that 7-day yields quoted on money market funds do not include compounding, so a constant 4.27% 7-day yield is the equivalent of 4.35% APY.)

For larger cash balances, I use the Vanguard Treasury Money Market Fund VUSXX which has a 4.34% 7-day yield as of 1/10/25. At ~80% US Government Obligations in 2023, it did meet the requirements of having interest exempt from state taxes for California, Connecticut, and New York. If you assume a 10% state income tax rate, this works out to a tax-effective yield of ~4.8%. This is as good as the top 1% of savings rates out there.

I don’t use VUSXX for any bank features, so there is little need to contact customer service. It just earns a reliably high interest rate due to its low expense ratio (0.09%) and mostly holding short-term US Treasury bonds directly.

Note: An honorable mention goes out to iShares 0-3 Month Treasury Bond ETF (SGOV), which has the same low expense ratio (0.09%). Trading it will expose you to a small bid/ask spread of about 0.01% for each trade, though. But if I’m holding at some new brokerage for a while, then SGOV is my go-to cash equivalent holding.

The rest
I maintain minimal balances in a local megabank bank account and a local credit union account, in case a physical bank branch is useful for whatever reason – unlimited ATM access, cash deposits/withdrawals, safety deposit box, notary, medallion guarantee, etc.

I also have some existing certificates of deposit from credit unions that I am waiting to mature, like the 5-year 5.00% APY CD I bought in 2023. I just don’t like the idea of my wife having to track down four different credit unions one day to piece together my crazy CD ladder.

Recap. My simplified cash setup utilizes existing brokerage account relationships and the fact that US Treasury interest is exempt from state income taxes to maximize my tax-effective yield earned on cash while minimizing the work required to chase rates across several smaller banks, fintechs, and credit unions. It also minimizes exposure to poor customer service. I maintain liquid access to cash, and my top option pays roughly an effective 4.80% APY, and overall is quite competitive with what I could achieve if I did constantly chase rates.