The best teen savings rate is hiding in Cash App
Most family cards pay nothing on your teen's savings. The app you're suspicious of pays 3.5%. Here's the catch, and who should actually use it.
You probably picture Cash App as the app for resourceful teens working little angles to get paid back their $3 share of a pizza. So you spent hours comparing Greenlight and Chase instead, because those feel like the serious choice.
Meanwhile, your teen already saved you the trouble. They found the app that lets them split a night out with friends, and here's the part that changes everything: while most family neobanks pay 0% on a teen's savings, Cash App pays 3.5% APY, the best savings rate in our entire index.
That deserves a second look, and an honest one, because the story doesn't end at the rate.
What that number actually means
A quick but important distinction, because it's exactly where sloppy comparisons go wrong. Cash App's 3.5% is a real APY, actual bank interest paid on the savings balance by its partner bank, Wells Fargo. That's not the same thing as the "savings rewards" some competitors advertise. Greenlight, for example, promotes rates "up to 6%," but that's a platform reward, capped at a $5,000 balance and only at its most expensive plan tier, not straight bank interest.
So when you line them up honestly:
Cash App: 3.5% APY for teens (13–17), 3.25% for younger sponsored accounts, no minimum, no conditions, interest from the first dollar.
Greenlight: a reward, not interest, capped and tied to the priciest plan.
Current, Chase First, Capital One MONEY, Axos: somewhere between 0% and 0.10%.
For a teen's actual savings, most of the "serious" cards pay close to nothing. The app parents distrust pays the most. That's the paradox worth sitting with.
How it actually works
Cash App handles teens through a sponsored account. Your teen has the app on their phone, and you, the sponsor, hold the controls: you see every transaction in real time, you set spending limits, and you can even set separate permissions for stock and Bitcoin purchases. Age-restricted merchants are blocked automatically.
On the protection side, Cash App is a fintech, not a bank. Your teen's balance is FDIC-insured through its partner bank, Wells Fargo, on a pass-through basis, and the interest is paid by Wells Fargo.
If the difference between "direct" and "pass-through" insurance matters to you, and it should, we broke it down in our guide to how deposit insurance actually works.
The catch, and it's a real one
Cash App is not the perfect bank, and we'd lose your trust if we pretended otherwise.
In 2025, Block, Cash App's parent company, was ordered to pay a significant CFPB penalty over how it handled fraud on the platform. That's not a footnote. It points straight at the product's real weakness: Cash App's open peer-to-peer network, the same feature that makes it so easy for your teen to get paid back, is a well-known playground for scams. Someone can request or send money to almost anyone, and teens are exactly the users most likely to fall for a convincing stranger.
There's also no real financial education built in, and customer support has historically been the app's weakest link. You get a great savings rate and a familiar interface. You don't get a walled garden.
So which one is right for your family?
Cash App makes sense if your teen already has the app, you want the best possible return on their savings, and you're ready to do the anti-scam education yourself, with a teen old enough to understand it. In that setup, the 3.5% is hard to beat and the controls are genuinely solid.
Look elsewhere in our index if your child is younger, you want a closed, controlled environment, and you either can't or don't want to be the one teaching fraud awareness. In that case a more locked-down card is the safer starting point, and our Teen and Kids rankings will point you to it.
What our Trail Score says
Cash App lands at 7.2 for Teens, third in our Teen ranking, behind Fidelity Youth (8.3) and Greenlight (8.1). The best-in-class savings rate and the supervised investing pull the score up hard. What holds it back from the top is exactly what this article is about: the open P2P scam exposure, the near-total lack of financial education, and support that trails the banking features.
That balance is the whole point. The rate is real and it's the best we've found for a teen. Whether it's right for your teen depends on one honest question: are you ready to be the fraud filter that the app itself isn't?
Trailmarker is an independent guide. We re-verify every card monthly and our rankings are never influenced by commercial relationships. This article is educational and isn't financial advice. APYs are variable and current as of our latest verification; confirm the latest rate and terms on the provider's site before opening an account.