Transferring cryptocurrency to and from your Tangem Wallet is a secure and straightforward process — as long as you follow best practices for network compatibility, address verification, and fee management. This comprehensive guide walks you through everything you need to know about sending, receiving, buying, and selling digital assets using the Tangem app.
Whether you're new to self-custody wallets or an experienced user, understanding how fund transfers work across different blockchains will help you avoid costly mistakes and ensure smooth transactions.
How to Receive Cryptocurrency in Your Tangem Wallet
To receive crypto, you must first generate a valid wallet address within the Tangem app:
- Open the Tangem app and go to the homepage.
- Tap the three dots in the top right corner.
- Select your desired wallet.
- Navigate to Manage tokens.
- Use the search bar to find the cryptocurrency you’d like to receive.
- Tap the toggle next to the token to view available networks.
- Enable the correct network and tap Save (you may need to rescan your card).
- Once added, tap the token on the home screen, then select Receive to display your public address.
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Important: Always ensure the sender uses the same network (e.g., Ethereum, BNB Smart Chain) that you selected in the app. Mismatched networks can result in irreversible loss of funds.
Selecting the Correct Network for Transfers
Tangem supports multiple networks for popular tokens like USDT, USDC, and ETH. For example, USDT exists on Ethereum, Polygon, Solana, and others — but only one version can be received per network.
To check supported networks:
- Go to Manage tokens, select a cryptocurrency, and view available blockchains.
- Choose the network matching the sender’s withdrawal option.
Matching sender and recipient networks is critical. Sending ERC-20 USDT to a BSC-configured address will likely result in permanent loss.
Adding Custom Tokens Not Listed in the App
If a token isn’t visible in Manage tokens, you can manually add it if its network is supported.
Supported networks include:
- Ethereum, BNB Smart Chain, Polygon, Arbitrum, Optimism, Base, Avalanche C-Chain, Solana, Tron, and more.
To add a custom token:
- Open Manage tokens.
- Tap the + icon.
Enter:
- Smart contract address (from CoinMarketCap or a blockchain explorer)
- Network
- Token name and symbol
- Decimal count
- BIP44 derivation (usually “Default”)
Example: Adding BinaryX (BNX) on BNB Smart Chain requires entering its official contract address and setting decimals to 18.
For detailed instructions, refer to Tangem’s official blog on adding tokens.
Understanding Account Reserves on XRPL and Stellar
When receiving XRP or XLM for the first time:
- 1 XRP is reserved on XRPL
- 1 XLM is reserved on Stellar
These funds are locked to activate your account and cannot be spent. For instance, sending 10 XRP results in a spendable balance of 9 XRP.
This is normal behavior — not a transaction error.
Do You Need a Memo or Tag When Sending Crypto?
For certain blockchains — including XRP, XLM, ATOM, TON — exchanges use destination tags (also called memos or messages) to identify internal users.
However, you do not need to specify a tag when sending to your Tangem Wallet, since you control the address directly.
Some exchanges may still prompt for a memo. In such cases, any value (like “0” or “1”) is acceptable — it won’t affect delivery.
What If You Forgot the Memo When Sending to an Exchange?
If you sent crypto to an exchange without including a required memo/tag:
- Contact the exchange’s support immediately.
- Provide the transaction hash (txID), amount, and timestamp.
- Most platforms have recovery procedures for missing memos.
You can find your txID in the Tangem app by tapping Explore Transaction History under the relevant token.
Why Did I Receive WETH Instead of ETH?
Wrapped Ethereum (WETH) appears when ETH is sent via non-native networks (e.g., transferring ETH through Polygon or Arbitrum). WETH is fully convertible back to ETH within compatible decentralized exchanges.
Tangem displays WETH instead of ETH in these cases because the asset is technically wrapped for cross-chain compatibility.
How Fees Work Across Different Networks
Tangem does not charge transfer fees — only network fees apply. These vary by blockchain and depend on congestion and transaction complexity.
Native Fee Coins by Network
- Ethereum: Paid in ETH
- BNB Smart Chain: Paid in BNB
- Tron: Paid in TRX
- Solana: Paid in SOL
- Arbitrum / Base / Optimism: Paid in their respective ETH variants
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Always keep a small balance of the native coin to cover transaction costs — even when sending other tokens.
Special Cases: Arbitrum, Base, Optimism
On Layer 2 networks like Arbitrum, Base, and Optimistic Ethereum:
- Fees are paid in ETH variants specific to each chain.
- You must deposit ETH directly onto that network (via bridge or exchange) to pay fees.
For example: To send USDC on Base, you need Base (ETH) in your wallet to cover gas.
Managing Transaction Fees in Tangem
When sending crypto:
- Tangem offers three preset fee levels: Low, Normal, and Priority
- Higher fees speed up confirmation during network congestion
- Lower fees save money but may delay processing
The estimated fee appears before finalizing the transaction. You can adjust it based on urgency.
If the Send button is grayed out, it usually means insufficient funds for network fees.
Solana Rent: What It Means
On Solana, accounts incur a small "rent" fee of approximately 0.000002439 SOL every two days. Accounts with less than ~0.00089 SOL may be purged.
To avoid this:
- Deposit at least 0.001 SOL when setting up your wallet
- This ensures long-term account stability
Buying and Selling Crypto Directly in the App
Tangem integrates with third-party services for fiat on/off ramps:
- Buy via Mercuryo or Simplex using a bank card
- Sell via MoonPay directly to your bank account
- Swap tokens using providers like 1inch or OKX
Why Are Buy/Sell/Swap Buttons Grayed Out?
Possible reasons:
- The selected token isn’t supported by current providers
- Your country isn’t supported (e.g., some services don’t operate in Russia or Iran)
- KYC requirements aren’t met (for certain swap functions)
Check provider terms directly in-app or explore alternative methods like centralized exchanges.
Troubleshooting Common Transfer Issues
"Invalid Address" Error
This typically means:
- The token network doesn’t match between sender and receiver
- The address format is incompatible (e.g., sending BEP20 to an ERC20-only field)
Double-check both ends use identical networks.
Funds Not Received?
Common causes:
- Pending confirmation: High network load delays processing — check txID in a blockchain explorer.
- Wrong network: Sent via unsupported chain — recovery possible only if Tangem adds support later.
- Incorrect address: Finality on blockchain means no reversal — always verify addresses.
- Contract address mistake: Sending to smart contracts often leads to permanent loss unless the team intervenes.
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Swaps Taking Too Long?
Most swaps complete within 5–30 minutes. Delays may stem from:
- Network congestion
- Required KYC verification by the provider
- Liquidity issues
Check swap status in-app or contact the provider’s support team directly.
Frequently Asked Questions (FAQ)
Q: Can I change my wallet address?
A: No. Tangem wallet addresses remain constant unless you reset the card and create a new wallet.
Q: Are all token addresses the same in Tangem?
A: Yes — on EVM-compatible chains and within the same network, all tokens share one unified address for simplicity.
Q: Why didn’t I get my purchased crypto?
A: After payment, crypto is sent automatically. If delayed beyond several hours, contact Mercuryo or Simplex support with your txID.
Q: Can I recover funds sent to an unsupported network?
A: Not immediately. You retain ownership via private keys, but access depends on future network support. Do not reset your card.
Q: What happens if I send crypto to a contract address?
A: Recovery is unlikely unless the contract owner has refund functionality. Always double-check addresses before sending.
Q: How long do transactions take?
A: Varies by network — Bitcoin may take minutes to hours; Solana confirms in seconds. Fee level also impacts speed.
By following these guidelines, you can securely manage fund transfers in your Tangem Wallet while minimizing risks associated with cross-chain transactions, incorrect addresses, and network fees. Stay informed, verify every detail, and leverage trusted tools for optimal results.