Your Stablecoins Earn 4%, and a Law Says It Isn't Yours

At the end of March 2026, close to three hundred billion dollars were sitting idle in stablecoins, the digital tokens pegged to the dollar that circulate on blockchains. Each token is meant to be worth a dollar, backed by a real dollar parked somewhere, most often in US Treasury bills. And those reserves earn money: at today's rates, somewhere around four to five percent a year. The only question is whose pocket that money lands in.

Until now, the answer was plain: not yours. The token's issuer collects the interest on its reserves and keeps it. Tether and Circle, which dominate the market, built fortunes on that principle: you hand them your dollars, they invest them, they pocket the yield, and in return you get a token still worth exactly one dollar, no more. In 2026, a US law set that arrangement in stone. At once, a whole industry went looking for the gap in it.

A law against paying you

Passed in the summer of 2025, the so-called GENIUS Act gave the United States its first framework for payment stablecoins. Among its rules sits a sharp prohibition: a compliant issuer may pay no interest, no yield, no reward to the holders of its tokens. Put simply, your stablecoin is allowed to be worth a dollar, never to earn you anything.

That ban did not come from nowhere. The banks asked for it, and one can see why. If a state-backed digital token could serve as a means of payment and pay four percent at the same time, why leave money in a checking account that pays nothing? The fear of deposits fleeing toward these digital dollars weighed heavily. In 2026, the US bank regulator went further, proposing strict implementing rules to close any remaining escape hatch.

The crypto sector, for its part, calls it an incumbent's maneuver: forbidding the stablecoin from paying is a way to shield the banks' margin from a product that serves the saver better. The debate is less technical than it looks. It turns on a simple question: who owns the interest generated by your own money?

The gap, and the tokens that pay

The law forbids the issuer to pay. It says nothing about what a third party may do. It is in that crack that a new category has exploded: yield-bearing stablecoins. The setup is straightforward. A base token, compliant and yield-free, serves as the foundation; alongside it, a sister token or a wrapper captures the return on the reserves and passes it to whoever holds it.

The growth is striking. At the end of March 2026, these yield-bearing stablecoins were worth nearly twenty-three billion dollars, or 7.4 percent of the total market, after growing fifteen times faster than the sector as a whole over six months. In the first quarter alone, they accounted for more than half of the market's net growth.

The forms vary. Ondo's USDY token puts the money into Treasury bills and returns the yield by raising the token's redemption value day after day; it is structured as a regulated security. The Sky protocol redistributes its surplus to those who lock their tokens in a savings module. Others, like Ethena, chase double-digit returns through riskier market strategies. Three ways of answering the same wish: that idle money stop being idle.

What a dollar that works changes

For anyone holding dollars without spending them, the benefit is obvious. A plain checking account pays little or nothing; a banknote under the mattress loses a little each year to inflation. A yield-bearing stablecoin makes the sum grow without your having to move it, place it actively, or step up to a counter. The money works while you sleep, and you keep the freedom to spend it the moment you choose.

That convenience matters all the more where the local currency is fragile. For a worker in Latin America or Africa saving in dollars to outrun inflation, earning four or five percent on those savings, from a phone, without a US bank account, is no small thing. It means, concretely, recovering interest that yesterday went to an issuer or a bank. The yield is not created; it simply changes pockets.

The quiet price of yield

But a dollar that earns is no longer quite a carefree dollar. First, because these tokens are not deposits: no public guarantee protects them if the issuer fails. Where a bank account is insured up to a certain amount, a yield-bearing stablecoin rests entirely on the soundness of whoever runs it and the quality of its reserves.

Second, because not all yields are equal. Ondo's comes from Treasury bills, among the safest assets there are. Ethena's comes from a market strategy that can turn against it in bad conditions; the protocol keeps an insurance fund, sixty-one million dollars in March against five and a half billion tokens in circulation, precisely because the worst remains possible. A double-digit rate is never free: it pays for a risk, whether you see it or not.

Third, because the whole edifice stands on a legal crack. What the law banned on one side, it tolerates on the other for lack of having foreseen it. The banks are pushing to close the gap; nothing says today's setup will survive tomorrow's regulator. Building your savings on a gray zone means accepting that it can narrow without warning.

At bottom, the fight is not about technology but about an old question of money: who collects the interest on the sum you leave sleeping? For decades the answer was a given, the bank, then the token issuer. For the first time, the saver can claim a share. What remains to be seen is whether they grasp what they accept in exchange, and how long the law will leave the window open.