The Law Says Your Stablecoin Can't Pay You Interest. Unless a Bank Issues It.

Hold a dollar of stablecoin and you are lending money to the issuer for free. The issuer parks your dollar in Treasury bills, collects the interest, and keeps it. That is not a loophole. As of 2026, in the United States, it is the law.

The mechanism is stablecoin yield, or rather the deliberate absence of it. The GENIUS Act, the federal stablecoin framework now in force, prohibits permitted payment stablecoin issuers from paying interest or yield to the people holding their coins. The float — the pile of customer dollars backing every token in circulation — earns plenty. You just aren't allowed to see a cent of it.

The cleanest example arrived in May

On May 27, SoFi launched SoFiUSD, the first stablecoin issued by a US national bank to land on a consumer banking platform, pushed out to nearly 15 million members and live on Ethereum and Solana.

Read SoFi's own disclosure and the design becomes clear. SoFiUSD is redeemable one-for-one for dollars. It does not bear interest. It is not FDIC-insured. It is, by construction, a token that holds its value and pays you nothing for the privilege.

But here is the part worth slowing down for. SoFi has said members will be able to convert SoFiUSD into tokenized deposits — accounts that may earn interest and may qualify for FDIC insurance. So the same dollar, in two wrappers. As a stablecoin, it is barred from paying you. As a bank deposit, it can. The wrapper decides who gets the yield.

The fight in Congress is about exactly this

None of this is settled law-on-autopilot. The market structure bill working through the Senate — the Digital Asset Market Clarity Act — cleared the Banking Committee on May 14 in a 15-9 vote, and one of its sharpest unresolved fault lines is stablecoin yield. Lawmakers spent the spring trying to break the deadlock with a compromise on whether, and how, holders could ever earn on their coins.

Why would anyone care this much about a feature most users never knew they were missing? Because the numbers are not small. Banks lobbied hard for the prohibition, and they had a reason.

The White House published research on what stablecoin yield prohibition does to bank lending. The logic is plain: if a stablecoin could pay 4% the way a money-market fund does, deposits would drain out of traditional banks and into tokens overnight. A checking account paying nothing cannot compete with a digital dollar paying market rates. So the rule that looks like consumer protection is also a moat. It keeps cheap deposits inside the banking system by making the alternative deliberately worse.

The yield is real — it just has a new owner

Strip away the politics and one fact remains. The interest exists. Stablecoin supply has climbed past $300 billion, and at current Treasury rates that float throws off something on the order of $12 billion a year. The GENIUS Act doesn't make that money disappear. It assigns it. To the issuer, not the holder.

That is the quiet redistribution underneath the entire stablecoin boom. Every dollar you hold in a payment token is a tiny, interest-free loan you are extending to a company that is very much collecting interest. Multiply by hundreds of billions and you have one of the better businesses in finance, built on the principle that the lender gets nothing.

Issuers will tell you this is the price of safety, and they are not entirely wrong. A stablecoin that pays yield starts to look like a security, or a bank, or a money-market fund, each of which drags its own regulatory weight. Keeping the coin dumb and free keeps it legal and instant. There is a real trade there.

But "for your safety" is doing heavy lifting when the safe choice also happens to be the profitable one for the issuer. The honest framing is that the law picked a winner, and the winner was whoever holds the float.

Where this leaves everyone who actually uses the things

The workaround is already taking shape, and it has a name: tokenized deposits and yield-bearing vaults that sit one layer away from the payment coin. Hold the stablecoin to move money. Sweep it into something that earns when you want the return. SoFi's two-tier design is the template, and others are racing to build the same staircase. Bank-issued tokens get to climb it. Most everyone else is stuck explaining why their coin is a worse savings account than the bank's.

For anyone holding more than one of these — and at this point that is most active users — the practical problem is no longer custody. It is bookkeeping. Which dollar is earning, which is idle, which wrapper unlocks the yield and which one forfeits it. Tracking the difference across a dozen tokens and chains is the kind of unglamorous work that tools like The Crypto App exist to absorb, because the spreadsheet version stops scaling the moment your "cash" lives in four places at once.

The deeper shift is harder to wrap. For a decade, crypto sold itself as the thing that cut out the middleman and handed the spread back to the user. The stablecoin — its single most successful product — did the opposite. It rebuilt the middleman, gave him a federal charter, and wrote the rule that he keeps the interest.

So the question for the next stretch isn't whether stablecoins win. They already have. It's whether the people holding $300 billion in them ever start asking why the float belongs to anyone but them — and what happens to the issuers' best business on the day they do.