The question I keep hearing, from savers and from friends nursing a down payment fund, sounds like this: with interest rates this high, where do I actually put my cash?
Here is the short answer: after years of earning next to nothing, cash finally earns something again. The 10-year Treasury touched 5.04% on Tuesday, September 15, its highest since 2007, according to Finimize, and the 2-year Treasury hit 4.741%, its highest since July 2024, per The Wall Street Journal. Rates you can actually reach as a regular person have followed. So let us walk through the options, one by one, in plain language.
One note before we start: this is general information, not financial advice. Your situation is your own.
Option 1: High-yield savings accounts
A high-yield savings account is exactly what it sounds like. It is a savings account at a bank, usually an online bank, that pays a higher interest rate than the savings account at your local branch. Your money stays liquid, meaning you can move it whenever you need it. Deposits are insured by the Federal Deposit Insurance Corporation, up to $250,000 per depositor per bank, according to the FDIC.
The trade: convenience and safety, in exchange for a rate the bank can change at any time. When the Federal Reserve raises rates, these accounts tend to follow upward, slowly. When the Fed cuts, they follow downward, usually faster.
Best for: an emergency fund, the money you need within the next year, anyone who sleeps better knowing the balance cannot go down.
Option 2: Money market funds
A money market fund is not a bank account. It is a mutual fund that invests in very short-term, very safe debt: Treasury bills, short-term corporate paper, that kind of thing. You buy and sell it through a brokerage, and the price is designed to stay at one dollar a share.
Money market funds currently pay yields that track short-term interest rates closely, which is why they look attractive right now with the 2-year Treasury at 4.741%. But two caveats. First, they are not FDIC-insured. They are investments, and while they are built for stability, the insurance works differently than at a bank. Second, the yield floats. It moves with the market, day by day.
Best for: cash you are holding inside a brokerage account, a house down payment fund you will need in the next year or two, anyone comfortable with a brokerage instead of a bank.
Option 3: Treasury bills, the government’s own IOU
This is the one people ask about most, so let us slow down and explain how a Treasury bill actually works.
A T-bill is a loan you make to the US government for a short period: 4 weeks, 8 weeks, 13 weeks, 17 weeks, 26 weeks, or 52 weeks. You buy the bill at a discount and the government pays you the full face value when it matures. Here is a simple example of the mechanics: you might pay $980 for a bill with a $1,000 face value, and 26 weeks later you receive $1,000. The $20 difference is your interest. You can buy them directly from the government at TreasuryDirect, which is run by the US Treasury.
Three features make T-bills special. First, the interest is exempt from state and local income tax. You still owe federal tax, but if you live in a state with income tax, that exemption is real money. Second, they are backed by the full faith and credit of the US government, which is the closest thing finance has to a sure thing. Third, you know your return in advance. Buy the bill, hold it to maturity, collect the face value.
The trade: your money is locked up until maturity (though you can sell early through a brokerage, the price may have moved), and you have to be a little comfortable with an auction process or a brokerage screen.
Best for: a known future expense (a tuition bill due in six months, a tax payment), or anyone in a high-tax state who wants to keep more of the yield.
Option 4: Certificates of deposit (CDs)
A CD is a deal you make with a bank: you agree to leave your money alone for a set term, from a few months to a few years, and the bank agrees to pay you a fixed rate. The rate is locked. If the Fed cuts rates next month, your CD does not care.
The trade is the mirror image: if rates keep rising, you are stuck at the old rate until the term ends. And if you pull out early, the bank charges a penalty, usually some months of interest.
There is also a strategy worth knowing called laddering. Instead of putting everything into one CD, you split it: some in a 3-month CD, some in a 6-month, some in a 12-month. As each rung matures, you roll it into a new CD at the then-current rate. The same trick works with T-bills. Laddering smooths out the guesswork about where rates are heading, because you are never betting everything on one moment.
Best for: money you will not need until a known date, anyone who values a guaranteed rate over flexibility.
Nominal versus real: the number that matters
Here is a distinction worth carrying with you. The rate on the screen is the nominal return. Your real return is what is left after inflation. If your savings account pays 4% and prices rise 3%, your purchasing power grew about 1%.
With the Fed raising rates this week specifically to fight inflation, this is not an academic point. A 5% yield sounds wonderful until you remember why rates are 5%. The saver who understands real returns is the saver who does not get fooled by a big number.
How to think about choosing
Picture a family I will call the Hendersons. They have an emergency fund, a down payment fund for a house they hope to buy in about 18 months, and a tax bill due in April. Here is how the logic runs.
The emergency fund goes in the high-yield savings account. It must be there on a Tuesday night when the water heater dies. Liquidity beats yield.
The down payment fund could be split: some in a money market fund for flexibility, some laddered in T-bills or CDs maturing before the expected purchase. The state tax exemption on T-bills is a quiet bonus.
The April tax money goes in a T-bill maturing just before the bill is due. Known date, known amount, no surprises.
Notice what the Hendersons did not do. They did not chase the highest number on the screen. They matched the money to the job.
The caveats, honestly
A few things to keep in mind. Rates are high because the economy is fighting inflation and the Fed just raised rates again on September 16. If inflation falls and the Fed cuts, every one of these yields will drift down. Locking a rate today in a CD is a bet that today is the good moment. Laddering exists precisely because nobody knows.
Second, FDIC insurance has limits: $250,000 per depositor per insured bank, per the FDIC. If your cash exceeds that at one bank, spread it around.
Third, taxes. T-bill interest skips state and local tax. Bank interest does not. In a high-tax state, that difference can be worth more than a slightly higher headline rate.
Finally, remember the one-line truth: cash paying 5% is wonderful, but it is wonderful because borrowing costs 5% too. The same rate environment rewarding your savings is charging your neighbor’s mortgage. Enjoy the yield, but do not mistake it for free money. It is the economy’s way of saying: patience is valuable right now.
