When you swap crypto, the price you pay is rarely just “the fee”. Many services add a margin inside the exchange rate, charge a separate withdrawal fee and then round the result in their favour. On LarkSwap the cost is split into two clear parts, and you see both before creating the order.
What you actually pay
- Service fee: 0.4%, flat, on every pair. It is already applied to the rate you see in the form.
- Network fee: what the blockchain charges to send your coins. It depends on the network you receive on, and it is deducted from the amount you get, never added on top.
Example: you swap the equivalent of $1,000 in BTC to USDT on Tron. The service fee is about $4 (0.4% of $1,000). The Tron network fee for sending your USDT is typically around a dollar or two. That is the full cost — the amount shown under “You get” is what lands in your wallet.
Pick a cheap network and save more
The service fee is the same on every network, but network fees are not. Receiving on a low-cost chain is the easiest way to keep more of your money:
| Network | Typical network cost |
|---|---|
| Solana (SPL) | Cents |
| BNB Smart Chain (BEP20) | Cents |
| Polygon, Arbitrum, Base | Cents |
| Tron (TRC20) | Around $1–2 for USDT |
| Ethereum (ERC20) | Usually the highest; varies with congestion |
If your wallet or exchange accepts several networks for the same coin, choose the cheapest one it supports. For example, moving USDT from TRC20 to ERC20 costs more on the receiving side than staying on Tron or Solana.
A fixed rate, so the fee stays the fee
Low fees mean little if the price moves against you while your deposit confirms. When you create an order, the rate is locked for 30 minutes. Send the exact amount shown within that window and you receive exactly what was quoted, even if the market moves.
How to keep costs down
- Send larger amounts in one order instead of many small ones: the network fee is paid per transfer.
- When sending from an exchange, check its withdrawal fee too — it is charged by them, not by us.
- Use the € or $ toggle in the form to see the value of what you send before you commit.
Popular low-cost swaps
Try BTC to USDT, USDT to BTC, ETH to BTC, SOL to USDT or XRP to USDT. Need speed more than savings? See our guide to a fast crypto swap, or swap with no sign-up.
{F} to {T}: your questions answered
How much is the fee on LarkSwap?
A flat 0.4% service fee on every swap, plus the network fee of the chain you receive on. Both are included in the amount shown before you create the order.
Are there hidden fees in the exchange rate?
No. The rate you see already includes the 0.4% fee, and the network fee is shown separately. What you see under “You get” is what you receive.
Which network is cheapest for USDT?
Solana, BNB Smart Chain, Polygon, Arbitrum and Base usually cost cents; Tron costs a little more; Ethereum is usually the most expensive. Use one your wallet supports.
Is there a minimum amount?
Yes, around $20 per order, so that network fees stay small compared with the amount you swap.
Does the fee change with the amount?
The service fee is always 0.4% of the amount. The network fee is a fixed cost per transfer, so it weighs less on larger swaps.