Who can deposit Bitcoin?
To deposit Bitcoin into your 21bitcoin account, the following requirements must be met:
Your identity has been verified
You have completed a verified bank transfer
Your account status is active
Note: You cannot deposit BTC without completing identity verification and verifying your bank details.
How to make a deposit
You receive a unique Bitcoin deposit address in the app. Send your Bitcoin to this address — whether from an exchange or your own wallet.
From an exchange 📊
Open your exchange (e.g., Kraken, Bitpanda, Coinbase)
Navigate to the withdrawal section (Withdrawal / Send)
Copy your 21bitcoin deposit address from the app
Paste the address as the recipient address
Enter the desired amount and confirm the withdrawal
Note: For deposits from exchanges (so-called hosted wallets), the exchange may transmit information in accordance with the Travel Rule. In some cases, additional verification is required—you will be notified via email and push notification.
From your own wallet (Self-Hosted 🔑)
Open your own Bitcoin wallet (e.g., BlueWallet, Ledger, Trezor)
Copy your 21bitcoin deposit address from the app
Paste the address as the recipient address
Enter the desired amount and confirm the transaction
Note: For deposits totaling €1,000 or more within 24 hours from your own wallet, additional wallet verification is required. You will be notified via email and push notification about the next steps.
Minimum Deposit
Minimum deposit: 0.00015 BTC (after network fees)
Deposits below the minimum amount will not be credited and will be marked as “unprocessed.”
Fees
Deposits of 0.005 BTC or more: free
Deposits under 0.005 BTC: 5,000 sats fee
Example: You send 0.004 BTC → 5,000 Sats are deducted → Credit: 0.00395 BTC
Taxes (Austrian tax liability 🇦🇹)
If you are liable for taxes in Austria, we require additional information about your Bitcoin after your deposit is credited—before you can sell or withdraw.
Why?
The tax treatment depends on when you acquired your Bitcoin:
Before March 1, 2021 (old stock): No tax deduction – these Bitcoin are not taxable.
On or after March 1, 2021 (new stock): 27.5% capital gains tax (KESt) on realized gains.
Date/price unknown: 50% of the sale proceeds are considered taxable profit.
What information is required?
Date of acquisition (exact date or time period)
Acquisition cost (purchase price or average price)
What happens after the deposit?
Your transaction will initially appear with the status “Pending”
Security checks are performed automatically
If verification or tax information is required, you will be notified via email and push notification
Once everything is complete, your Bitcoin balance will be credited and you will receive a confirmation
Notes
Send Bitcoin only to your personal 21bitcoin deposit address
Only Bitcoin (BTC) is accepted—no other cryptocurrencies
Network fees are charged by the Bitcoin network and cannot be influenced by 21bitcoin
Processing time depends on blockchain confirmation—typically a few minutes to an hour