Austrian Bitcoin platform 21bitcoin has launched a service paying 1.21% annual variable interest on customers’ uninvested euro balances, with the option to collect these earnings directly in bitcoin at no conversion fee. The company claims to be the first provider in Europe to offer savings interest settled in BTC. This interest applies to all euros in the account, including funds reserved for pending purchases or limit orders, and requires no minimum deposit or lock-up period.
The interest is funded by Volksbank Raiffeisenbank Bayern Mitte eG, a German bank holding a stake in 21bitcoin since 2023. Customer euros are held in a segregated trust account as instant-access savings, with 21bitcoin passing the full interest amount to users without retaining a margin. Co-founder and CEO Daniel Winklhammer stated that wealth building begins with the euros set aside for purchase. The rate is subject to German withholding tax. Founded in 2021, 21bitcoin holds a MiCAR license in Austria and BaFin authorization in Germany, reporting over 100,000 users and €650 million in trading volume.
This development illustrates a strategic pivot toward integrating traditional banking yield mechanisms with crypto-native settlement preferences. By leveraging a partnership with a regulated German bank to fund interest payments, 21bitcoin attempts to bridge the gap between fiat savings safety and digital asset accumulation. The structure relies on segregated trust accounts and transparent pass-through of interest, distinguishing itself from high-yield crypto lenders that faced collapse due to opaque risk management. The ability to receive interest in BTC without conversion fees reduces friction for users seeking dollar-cost averaging effects through passive income streams rather than active trading.
From a regulatory and market structure perspective, the launch tests the boundaries of MiCAR compliance within the European Union. Operating under both Austrian and German authorizations allows the firm to navigate complex cross-border financial regulations while offering products that blend traditional banking features with cryptocurrency utility. The introduction of this feature follows earlier pilots involving institutional-grade Bitcoin-backed credit products, signaling a broader roadmap that includes insured cold storage and inheritance custody slated for 2027. Market observers will monitor whether this model attracts institutional capital seeking compliant yield alternatives or if it remains a niche retail feature constrained by variable rates and tax implications.


