How to send USDT safely: choosing TRC-20, ERC-20 or BEP-20

A USDT transfer takes a couple of minutes, but one mistake with the network or address can cost the whole amount. Here is how to get it right the first time.

5 min read · Updated: 2026-10-19

Contents

In short
Step 1. Choose the network
Step 2. Check the address
Step 3. Memo or tag
Step 4. Send a test transfer
What it costs and how long it takes
Topping up a crypto card
What if you picked the wrong network
Questions and answers

In short

USDT is a stablecoin pegged to the US dollar. It is issued on several blockchains, and on each one it is a separate token. So the key rule is:

The network you send on must match the network the recipient accepts. Seeing "USDT" on both sides does not mean the transfer will arrive.

The order of steps: find the recipient's network, copy the address, check the address and memo, send a test amount, then send the rest.

Step 1. Choose the network

The network decides which token standard is used, how much the transfer costs and how fast it arrives. The most common options:

Network	Blockchain	Address starts with	Fee
TRC-20	Tron	T	Usually low, on exchanges often around $1
ERC-20	Ethereum	0x	The highest, depends on network load
BEP-20	BNB Smart Chain	0x	Usually low
Others	Solana, TON, Arbitrum, Polygon, etc.	Depends on the network	Usually low

Fees change. The exchange shows the exact amount on the withdrawal screen, so trust that, not tables online.

How to choose: ask the recipient, or open their deposit page and see which networks it lists. Among the shared ones, pick the cheapest. More in withdrawal network.

ERC-20, BEP-20, Arbitrum and Polygon addresses look identical (they start with 0x). A wallet or exchange will accept the address even on the wrong network, so always compare the network name.

Step 2. Check the address

You never type a wallet address by hand. You copy it or scan a QR code. Even copying can go wrong.

Compare the first and last 4–6 characters with the address on the recipient's screen.
Do not copy an address from your transaction history. Scammers send tiny transfers from look-alike addresses so you copy the fake one. This is address poisoning.
Clipper malware swaps addresses in your clipboard. If the pasted address differs from what you copied, stop and check your device.
Save regular recipients in the address book of your exchange or wallet.

Step 3. Memo or tag

Some networks and exchanges use one shared address for many customers and tell them apart with an extra field: a memo, tag or comment. For USDT you will most often see this on TON.

If the recipient's deposit page shows a memo, you must enter it when sending.
If there is no memo, leave the field empty.

A transfer without the required memo usually reaches the exchange but is not credited to you. Getting it back goes through support, takes time and does not always work.

Step 4. Send a test transfer

When sending to a new address or over a new network, send a small amount first, such as 5–10 USDT. Keep in mind that exchanges have minimum withdrawal and deposit amounts.

Send the test amount.
Wait until the recipient sees it on their side.
Send the rest the same way, with the same address, network and memo.

The test costs one more fee, but it is cheap insurance against losing the whole amount.

What it costs and how long it takes

The network charges a fee (gas), and the exchange often sets its own flat withdrawal fee on top. It does not depend on the amount: sending 50 or 5,000 USDT costs the same, which is why small transfers over ERC-20 often make no sense.

Timing depends on the network and on how many confirmations the recipient waits for. On fast networks a transfer usually lands within a few minutes. If the exchange holds the withdrawal for review, it can take longer.

If a transfer seems stuck, copy the transaction hash (TxID) and paste it into a block explorer for that network. It shows whether the transfer went out, to which address and how many confirmations it has.

Topping up a crypto card

A common case is a crypto card top-up with USDT. The steps are the same: open the top-up screen in the card's app, check which networks it accepts, copy the address and the memo if there is one, and send a test first. For example, this is how you can top up a KopiBank card. KopiBank is a Freekonomist partner.

Keep in mind that card payments may carry a conversion fee from USDT into the currency of the purchase.

What if you picked the wrong network

It depends on where the money went.

To your own non-custodial wallet on another EVM network (for example, you sent over BEP-20 instead of ERC-20 to a 0x address). The key for that address is the same, so you can usually add the right network to your wallet and see the coins.
To an exchange over a network it does not support. Support can sometimes recover the funds, often for a fee and slowly. Contact support with the TxID. There is no guarantee.
To a network where the recipient has no such address at all. The funds are most likely gone for good.

Blockchain transfers cannot be reversed. Only the owner of the address can send the money back, and "recovery services" that contact you first are almost always scams.

Questions and answers

Which network should I use to send USDT?

The one the recipient supports. If several work, pick the cheapest. That is often TRC-20, BEP-20 or a layer-2 network; ERC-20 is usually more expensive.

Can I send USDT TRC-20 to an ERC-20 address?

No. They are different networks: Tron addresses start with T and Ethereum addresses with 0x. Wallets and exchanges usually block an address in the wrong format, but between networks that all use 0x addresses this mistake is possible.

How long does a USDT transfer take?

On most networks, from a few seconds to a few minutes after it is sent. It can take longer if the exchange reviews withdrawals manually or waits for many confirmations.

What should I do if I forgot the memo?

Contact the recipient's support right away with the TxID, amount and address. They can often credit it manually, but it takes time and sometimes costs a fee.