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High-fee token scams#

Last modified: August 10, 2026

Some tokens charge a fee when they are transferred, bought, or sold. This is often called a fee-on-transfer design. Not every token fee is a scam, but a hidden, extreme, changeable, or 100% sell fee can cause a major loss.

In CenturionDEX token warnings, this risk may appear as High Buy or Sell Fee or 100% Sell Fee Detected.

What it looks like#

You buy 100 TOKEN and receive only 85 because a buy fee took 15%. Later, you try to sell the 85 TOKEN. The quote looks normal, but the contract takes a 60% sell fee before the swap completes, so you receive far less than expected. In a 100% sell-fee scam, the sale may technically succeed while sending all value away from you.

How fee traps work#

A risky token can:

  • Charge a high fee only when selling into a pool.
  • Change fees after users buy.
  • Send fees to a creator-controlled wallet.
  • Make different addresses pay different fees.
  • Combine high fees with a honeypot, blacklist, or fake liquidity.
  • Show small test sells that do not reflect normal user outcomes.

Checks before swapping#

  1. Read CenturionDEX token warnings before buying or selling.
  2. Check the token's fee information and verified code where available.
  3. Look for recent ordinary buys and sells from different wallets.
  4. Be cautious if the fee can be changed by an owner or privileged role.
  5. Do not rely on slippage to fix a contract-level fee.
  6. Remember that no warning label is a guarantee that all fees are detected.

Signs you may be affected#

  • The amount received is much lower than the quote suggested.
  • Small sells behave differently from normal-size sells.
  • The token's fee changes after a promotion or liquidity event.
  • A “tax,” “anti-bot,” or “launch fee” is not clearly disclosed.
  • The interface shows a 100% Sell Fee Detected warning.

What to do#

Stop increasing slippage without understanding the fee. Preserve transaction hashes, contract addresses, and screenshots. Report the token through official channels and avoid signing recovery or whitelist transactions from strangers.

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