Crypto News

Castle Opens Bitcoin Savings Stack to Individual Users

Sep 09, 2026 00:12 bitcoin castle savings crypto yield

Castle launches Bitcoin Savings Stack for personal accounts
Miami‑based startup Castle announced that its Bitcoin Savings Stack, previously available only to businesses, is now open to individual users. The platform lets personal accounts earn a 12% annual yield from STRC perpetual preferred stock and choose how the dividend is paid.

Key points

12% annual dividend paid semi‑monthly.
Dividends can be taken in cash, bitcoin, or any combination.
Most users split the payout, keeping cash for expenses and converting the rest to bitcoin automatically.
Castle was founded by Stephen Cole and João Almeida and is backed by Boost VC and Winklevoss Capital.

How the payout works

The yield comes from STRC’s perpetual preferred stock, which pays a 12% yearly dividend on a semi‑monthly schedule. Customers can direct 0%‑100% of each payout to bitcoin, with the remainder received as cash. The platform automatically converts the chosen portion at every payout.

Company background

Castle originally built an automated bitcoin financial stack for businesses such as restaurants, gyms, churches, and e‑commerce shops. The company’s co‑founders are CEO Stephen Cole and CTO João Almeida. Investors include Boost VC and Winklevoss Capital.

Why this matters

The service combines operating cash, fixed‑income yield, and bitcoin accumulation on a single platform, reducing the need to move money between a bank, an on‑ramp, and a brokerage. It also lets users earn steady cash flow while automatically building a bitcoin position.

What is confirmed

Castle is opening its Bitcoin Savings Stack to individual accounts as of September 8 2026.
The product offers a 12% annual dividend from STRC preferred stock.
Customers can choose any mix of cash and bitcoin for dividend payouts.
The platform is automation‑first; users set a strategy once and the system executes it.