Strike launches 3.6% interest on cash, paid out in Bitcoin
Jack Mallers' Strike now lets US users earn yield on dollar balances, with the interest delivered monthly in sats
Strike wants your idle dollars to quietly turn into Bitcoin. The platform founded by Jack Mallers has rolled out a feature called Bitcoin Interest on Cash, which pays US users a 3.6% annual percentage yield on their cash balances.
The interest arrives in Bitcoin rather than dollars, settled monthly in sats.
How the product works
Mallers announced the feature on X, and the launch date was October 6, 2026. The yield accrues every day and pays out once a month.
There is a small fine-print threshold. Payments only trigger when daily interest exceeds $0.01, so very small balances may not generate a payout right away.
Strike sets no minimum balance and no maximum balance for earning the 3.6% rate.
The feature is not automatic. Users have to opt in through the Strike app, and the product is available only to US individuals.
To put the math in concrete terms, Strike’s own example assumes a Bitcoin price of approximately $85,000. At that level, an $8,000 cash balance would generate around $288 in yearly Bitcoin income, which works out to about 338,824 sats.
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Where the money actually sits
Strike says the cash balances are held at Cross River Bank. Those deposits are FDIC-insured up to $250,000 per depositor.
Strike itself is not a bank, a distinction the company is careful to make. It acts as the platform layer, while the regulated bank holds the dollars.
On the Bitcoin side, Strike says user holdings are kept on a one-to-one basis in multi-signature cold storage. Multi-signature means several separate keys are required to move funds, which makes it harder for a single point of failure to drain them.
Strike also states the Bitcoin is not lent out or rehypothecated.
Part of a bigger Strike push
The new feature does not exist in isolation. It builds on product work Strike shipped earlier in 2026, including an expanded set of Bitcoin-backed lending options.
Strike keeps the two products separate. Bitcoin Interest on Cash is not tied to the lending business.
The broader strategy fits Mallers’ long-running goal of building a complete Bitcoin financial stack. Strike started as a payments app and has steadily added features that let users save, borrow and now earn without leaving a Bitcoin-centric platform.
The interest product targets a specific and very common habit. Many Bitcoin holders keep some dollars on hand for rent, groceries and bills, because nobody wants to sell Bitcoin every time the electric bill shows up.