Some Savings Pay 4%. The Average Pays 2%. Teach Your Kid The Gap.
Interest rates are up. On October 2, a one-year Treasury bill paid 4.46%, while the national average one-year CD paid just 2.12%. That gap is a perfect, real-world money lesson. Here is how to explain interest to kids, do the math together, and help them shop for a better rate.

Here's a question to ask your kid at dinner tonight: "If two banks both want your money, but one pays you twice as much to keep it there, which would you pick?"
Easy, right? Yet lots of savings sit in accounts that pay far less than they could.
Right now, interest rates are high. The Federal Reserve raised rates in September, and minutes released on October 7 show most officials expect another increase by the end of the year. Quartz reported that 10-year U.S. government bond yields recently hit 24-year highs.
That makes this a great moment to teach kids how interest works. The numbers are big enough to see, and the differences between banks are big enough to matter.
Here's one real example. On October 2, 2026, a one-year U.S. Treasury bill paid 4.46%. Bankrate's national average for a one-year bank CD was 2.12%. The best one-year CD Bankrate listed paid 4.45%. Same time period. Very different rewards for saving.
What is interest, in kid words?
Interest is a "thank you" payment for letting someone use your money.
When you put money in a bank, the bank doesn't just keep it in a drawer. It lends some of it to other people, like families buying houses or businesses buying equipment. Those borrowers pay the bank extra. The bank shares some of that with you. That share is your interest.
You can explain it with a simple story:
You lend your friend 10 trading cards for a month. When she gives them back, she adds 1 extra card to say thanks. That extra card is interest.
The interest rate tells you how big the thank-you is. It's usually shown as a percent per year. A 4% rate means you earn about $4 a year for every $100 you save.
There's a flip side, too. When you borrow money, you pay interest. That's why credit cards can be so expensive. The Fed reported that credit card accounts paying interest averaged a 22.36% rate in August.
Do the math together
Grab a calculator and try these with your kid. These are simple examples to practice with, not promises of what any account will pay.
Example 1: $100 for one year - At 0.01%: about 1 cent. - At 2%: $2. - At 4.5%: $4.50.
Example 2: $500 for one year - At 2%: $10. - At 4.5%: $22.50.
Ask your kid: "What could you buy with the difference?" For $500, the gap is $12.50. That might be a movie ticket or a book, earned just by picking a better account.
Example 3: The growing snowball Compound interest means you earn interest on your interest. If $1,000 earns 4% a year and you leave it alone: - After 1 year: about $1,040. - After 5 years: about $1,217. - After 10 years: about $1,480.
At 2%, the same $1,000 grows to about $1,219 after 10 years. Doubling the rate added more than $260 over a decade without adding a single new dollar. Rates can change over time, so treat these as practice math.
Why rates are high right now
Kids can understand the basic reason: the Fed is trying to slow down rising prices.
When prices go up fast, that's called inflation. The Federal Reserve, the country's central bank, can raise interest rates to cool things down. Higher rates make borrowing more expensive, so people and businesses borrow and spend a bit less. That can help prices rise more slowly.
According to the Fed's September minutes, staff estimated prices were rising at 3.8% a year in August by the Fed's preferred measure. That's well above the Fed's 2% goal.
Here's a deeper lesson for older kids: if your savings earn 4% but prices rise 3.8%, your money is barely growing in real terms. If your savings earn 0.01%, you're actually losing buying power each year. That's why the rate you choose matters.
Treasury data showed the gap between regular bond yields and inflation-protected bond yields was about 2.36 points on October 5. You don't need to explain that to a 9-year-old. But a teen might find it interesting: it's one way markets guess at future inflation.
Why don't all banks pay the same?
Different banks have different costs and different goals.
The Money Overview pointed out that the national average one-year CD rate depends on whose survey you use. Bankrate's average was 2.12%. NerdWallet's was 1.73%. Both were far below the top online rates, which were around 4.40% to 4.45%.
Some reasons for the gap:
- Online banks often pay more because they don't have to run lots of branches.
- Big banks may pay less because many customers never switch.
- Special offers can be high for a short time, then drop.
- Kids' accounts sometimes pay more or less than adult accounts, so read the details.
That's a lesson in shopping. Just like you'd compare prices on sneakers, you can compare rates on savings. Foundra's kids guides can help young savers set a goal, track deposits, and plan what they're saving for.
A 20-minute family rate hunt
Turn this into an activity you do together. A parent should lead, since kids usually need an adult to open accounts.
- Find your current rate. Log in to your kid's savings account (or yours) and look for "APY." Write it down.
- Look up three other options. Use a well-known rate list like CNBC Select or Bankrate. Note the APY, minimum deposit, and whether kids' or custodial accounts are offered.
- Make a comparison chart. Columns: bank name, APY, minimum, fees, can money be taken out any time?
- Do the math. Use your kid's actual balance and calculate one year of interest at each rate.
- Talk about trade-offs. A CD might pay more but lock money up. A savings account lets you take money out anytime.
- Decide together. Even if you don't switch, your kid practiced comparing, calculating, and choosing.
Always check that a bank is FDIC-insured (or NCUA-insured for credit unions) before opening an account.
Questions to spark good conversations
These work at different ages.
Ages 6 to 9: - "If the bank pays you to keep your money, why might it want your money?" - "Would you rather have $10 now, or $11 in a year?"
Ages 10 to 13: - "Why would someone keep money in an account that pays almost nothing?" - "What's the difference between saving and investing?"
Ages 14 and up: - "If rates go up, who wins and who loses?" (Savers often win. Borrowers usually pay more.) - "Quartz reported dividend stocks fell as bond yields rose. Why might investors move money to bonds when rates are high?"
There are no perfect answers. The goal is to help kids see money as something they can think about and make choices with.
What to watch next
The Fed meets again on October 27 and 28. If it raises rates again, savings rates may tick up. If it pauses, they may stay about where they are.
Mark the date on the family calendar. After the decision, check your kid's account rate again. Did it change? This turns news headlines into something your kid can track in real life.
You can also keep a simple "rate journal." Once a month, write down your kid's account rate and the best rate you can find. Over a year, your kid will see how rates move, and how banks respond.
Frequently asked questions
What is a good savings rate for kids in October 2026? The best one-year CDs paid around 4.40% to 4.45% in early October 2026, according to Bankrate and NerdWallet figures, while the national averages were about 2%. Many regular savings accounts pay even less. Rates change often, so compare current offers.
What is the difference between a savings account and a CD? A savings account lets you add or take out money anytime. A CD locks your money for a set time, like one year, usually in exchange for a fixed rate. Taking money out early often costs a penalty.
Can kids open their own savings account? Usually a parent or guardian must open or co-own the account. Many banks offer joint or custodial accounts for minors.
What does APY mean? APY stands for annual percentage yield. It shows how much you'd earn in a year, including the effect of compounding.
Why are interest rates high right now? The Federal Reserve raised rates in September 2026 to help slow inflation, which was running above its 2% goal. Officials signaled another increase is likely by year end.
Sources
- A 52-week Treasury bill yielded 4.46 percent on October 2, above Bankrate's 2.12 percent national average for one-year bank certificates, The Money Overview, October 5, 2026
- Treasury's 10-year yield reached 5.31 percent on October 5, The Money Overview, October 6, 2026
- Dividend stocks are getting crushed as bond yields hit 24-year highs, Quartz, October 6, 2026
- Most Fed officials expect another interest rate increase by year end, minutes show, The Money Overview, October 8, 2026
- Best CD rates of October 2026, CNBC Select
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