The Bitcoin wallet that gives you the choice
Buy Bitcoin, deposit existing BTC, store them securely, or send them to your own wallet at any time – it’s your choice.
Free deposits · withdraw anytime · self-custody on demand
Investments involve risks.
You decide where your Bitcoin is stored
Insured Custody
Your Bitcoin is held in insured custody (1:1 with BitGo, $250M insurance). You can withdraw your funds to your own wallet at any time, giving you full self-custody.
Self-Custody
Want to hold your own Bitcoin? Send them to your own wallet at any time or automate the transfer with Auto Wallet Transfer.
We give you the freedom
Use 21bitcoin for trading and custody, and send your funds back whenever you need to. This is how you combine institutional-grade security with complete self-custody—the choice is yours.
1,000 sats. Regardless of what the Bitcoin network charges
While other platforms often charge high fees, we encourage self-custody and charge a flat fee of just 0.00001 BTC for withdrawals to your external wallet.
There is also no mining fee for purchases on 21bitcoin.
Made for Bitcoin. Built for wealth
Professional Custody
Your Bitcoin is held 1:1 in cold storage at BitGo Europe – insured for $250 million. And even in the event of 21bitcoin's insolvency, your Bitcoin remains yours.
100% self-custody ready
In self-custody mode, we automatically send every purchase to your own wallet – you hold the keys from day one.
Optimize your transactions
Our rule of thumb: it is better to bundle larger amounts.
Many very small payouts create small UTXOs, which can lead to higher network fees for future transactions. Therefore, it can be sensible to accumulate Bitcoin first and transfer larger amounts to your own wallet in a single transaction.
Connect your hardware wallet to 21bitcoin
Connect your hardware wallet to 21bitcoin via xPub once and automate your self-custody. Set a BTC limit in 21bitcoin – once your balance reaches it, we automatically send your Bitcoin to your own wallet. Self-custody on autopilot.
FAQ
Yes. You can deposit existing Bitcoin from your own wallet or another platform directly to your 21bitcoin account.
You can find your personal Bitcoin deposit address in the 21bitcoin app. Simply send your Bitcoin to this address, and they will be credited to your account once confirmed on the Bitcoin network.
Both models describe who controls the private keys of your Bitcoin. With 21bitcoin, you don't have to choose; you get the best of both worlds.
At 21bitcoin: By default, your Bitcoin are held in insured custody (1:1 with BitGo, $250M covered). However, you can withdraw them to your own wallet at any time and thus switch to full self-custody. This way, you combine institutional security with complete self-determination; you decide.
Yes. You can sell the Bitcoin you have transferred to 21bitcoin directly in the app.
The proceeds from the sale will be credited to your EUR balance and can then be withdrawn to your linked bank account.
With the Auto Wallet Transfer you can set a limit (in Bitcoin) that, once reached, automatically triggers a withdrawal to your external wallet. This allows you to take full, automated control of your assets.
In non-custodial mode you can even have every purchase sent directly to your own wallet. Self-custody faster than on any other Bitcoin-only platform.
With Auto Wallet Transfer, you decide if and when Bitcoin is sent to your external wallet. This allows you to minimize transaction fees and prevent small UTXOs from accumulating in your wallet.
21bitcoin offers a standard purchase limit of €100,000 per purchase with no limit on the frequency of purchases, and a sales limit of €100,000 per sale, also with no limit on the frequency of sales. For Bitcoin withdrawals, the limit is 2.1 BTC per transfer. Cash can be withdrawn via SEPA transfer with no limit.
➜ Further information can be found here.
Yes. You can connect and verify a supported external wallet with 21bitcoin using a standard address or its xPub. Once connected, you can transfer Bitcoin directly to this wallet or set up automatic transfers via Auto Wallet Transfer. Wallet verification is completed using 2FA and a digital signature, with no need for an additional test transaction.
Generally speaking, no. As long as the Bitcoin still belongs to you, simply transferring it to your own wallet does not, in principle, constitute a sale.
An xPub (extended public key) is a public key used by a hierarchical deterministic (HD) wallet. It allows for the derivation of new Bitcoin receiving addresses. At 21bitcoin, the xPub is used, among other things, to connect your external wallet for automated withdrawals.
Investing that fits your goals
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