A transfer-tax token delivers less than the amount sent whenever its contract takes a cut during a transfer. When you swap into one from your own wallet, check whether the route supports that token and whether the quoted amount reflects the cut. The tax is part of the token’s rules, separate from network and swap fees.
Keep these points in mind:
- A token’s transfer tax can reduce the amount that reaches your wallet.
- A route may fail if its contracts cannot handle the token’s transfer rules.
- Check the exact token and network before you swap.
A transfer tax is taken when the token moves
A transfer tax is a charge built into a token’s code, often taken each time the token moves between addresses. The contract may burn the cut, send it to another wallet, or distribute it to holders.
For example, if a token charges 2% and a transfer sends 100 tokens, your wallet might receive 98. The exact result depends on the contract and which transfers it taxes. This charge is different from gas, the network payment for processing a transaction, and from a swap’s trading fee.
On a cross-chain swap, the destination token’s rules matter when that token is delivered on its own network. A thor swap service gives you a way to handle a cross-chain move in one flow, while the token’s own rules still determine how much arrives. Check the destination token before choosing it.
The tax can change the amount you actually receive
The key figure is the amount credited to your wallet after the taxed transfer, not just the amount a quote says the swap produces. A quote may show the token amount before its transfer tax, depending on how the route handles that token.
Consider two tokens. Token A has no transfer tax, so a 100-token delivery can credit 100 tokens; Token B takes 2%, so the same nominal delivery may credit 98. If you need a particular amount for a later trade or payment, that difference matters.
Some swap contracts check that the expected amount arrives. If a token takes a cut along the way, the check can fail and the swap may revert. Uniswap, for example, documents fee-on-transfer tokens as incompatible with its v3 router contracts; support depends on the route’s actual contracts, not simply on whether the token exists on that network.
Check the token and route before moving funds
Start by confirming the token’s contract address and network; names and symbols alone can be copied by impostors. Look for the token’s transfer fee rules in reliable project information, and check whether the route can process fee-on-transfer tokens.
Then compare the estimated output with the amount you need to receive. If the route does not clearly account for the tax, treat its displayed output as uncertain. A thor swap search can lead you to cross-chain options, but the destination token’s contract rules still decide what lands in your wallet.
For a practical cross-chain comparison, thorswap.us is where you would check how its service handles moving and swapping assets across networks. Before committing, make sure you have the destination network’s native coin for gas if you plan to move or swap the tokens again.
If the token’s tax or route support is unclear, try a small amount first and confirm the wallet balance after it arrives. That costs an extra network transaction, but it can show whether the tax was applied as expected before you move more.
Use the received balance to decide your next move
After the transaction completes, check the destination network’s transaction record and your wallet’s token balance. The balance is what you received; a transaction record can help explain a difference between that amount and the quote.
If the credited amount works for your plan, you can keep or use the tokens. If it does not, check the tax rate and route support before trying another swap. For the next thor swap, choose a destination token whose transfer rules and expected received amount fit the job.
Before swapping, remember to:
- Verify the token contract and destination network.
- Check whether the route supports transfer-tax tokens.
- Plan around the amount credited after tax, and confirm it arrived.
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