Castle Lets Personal Users Convert Strategy's 12% STRC Dividend Into Bitcoin (BTC)

Castle Routes Strategy's 12% STRC Dividend Into Bitcoin

Castle has opened its automated financial platform to individual users, giving personal account holders a way to convert any portion of the 12% annual dividend paid on Strategy's STRC preferred stock into Bitcoin (BTC). The feature was confirmed in a company statement issued Tuesday, and we went through the mechanics directly: customers elect to receive each payout entirely in cash, entirely in Bitcoin, or as a percentage split between the two, and once the allocation is set it executes automatically at every payment unless the user changes the instruction. Strategy pays the STRC dividend in cash first; Castle then purchases the selected amount of Bitcoin fundamentals on the customer's behalf. The arrangement does not alter the terms of the underlying preferred stock, and STRC itself does not become a Bitcoin-paying security. STRC, formally Strategy's Variable Rate Series A Perpetual Stretch Preferred Stock, is a Nasdaq-listed security with a $100 stated amount, and Castle added it to the platform earlier in 2026. The 12% figure is a variable annual rate rather than a guaranteed return: it can be adjusted monthly, the effective yield depends on the market price paid for the shares, and Strategy's board must declare each cash dividend. Payments follow a semi-monthly schedule shareholders approved in June, with record dates on the 15th and the final day of each month; the cycle began with a June 30 record date and a July 15 payment date. Castle said many customers choose a mixed allocation, keeping cash available for expenses while the remainder buys Bitcoin without a separate transfer to a brokerage or an onramp — the kind of step a buyer comparing the best crypto exchanges would otherwise handle manually. Both assets carry distinct risks: STRC can trade above or below its $100 stated amount, and Bitcoin bought from dividend proceeds remains fully exposed to its own price swings.

Personal Accounts Extend Castle Beyond Business Treasuries

Until this week, the platform served business entities exclusively. Restaurants, gyms, churches, accounting firms, e-commerce shops, auto dealerships, software companies, real estate businesses, and nonprofit organizations used it to automate cash management and recurring Bitcoin accumulation without maintaining separate systems for bank cash, income assets, and digital-asset purchases. The push into personal accounts came from those same customers, according to co-founder and CEO Stephen Cole. “Feedback we heard over and over from business owners was: ‘I love this stack — when can I use it personally?'” Cole said, adding that the same automated stack running a company's balance sheet can now run personal finances. Co-founder and CTO João Almeida framed the feature as a fix for a long-standing trade-off. “Investors have long faced a choice between earning steady yield and holding bitcoin. Castle eliminates that trade-off,” Almeida said. The broader pitch is consolidation: operating cash, fixed-income holdings, and Bitcoin purchases sit on one platform, cutting out the shuffle between a bank, an onramp, and a brokerage, with users defining a strategy once and the system executing it. Castle was founded by Cole and Almeida and is backed by Boost VC and Winklevoss Capital, having announced a $1 million funding round in 2025 to build its automated Bitcoin treasury tools for small and medium-sized businesses. Notably, the company has not disclosed how many business customers it serves, expected personal-account volume, assets under management, account minimums, trading fees, or the price used when converting dividend cash into Bitcoin. Its statement also did not explain how conversions are reported for U.S. tax purposes, even though the Internal Revenue Service treats digital assets as property and taxpayers generally must track acquisition dates and cost basis. Readers tracking the market in real time can follow live spot and futures prices on MEXC.

Yield-to-Bitcoin Rails Reach Retail Investors

Read together, the two announcements describe one shift: the corporate treasury stack that automated Bitcoin accumulation for businesses is now productized for personal finance, turning a preferred-stock income stream into a scheduled accumulation rail. Strategy's own STRC disclosure confirms the 12% annualized rate for September 2026 record dates, and its semi-monthly dividend approval provides the payment cadence Castle automates. In our reading, this sits between passive income investing and a long-term HODL strategy — distinct from a strategic Bitcoin reserve at the state level, but part of the same accumulation reflex behind debates like whether Bitcoin overtakes gold.