Sometimes while trading, the balance in my tz1 account will be reduce by 0.257 tz. After I successfully traded, my account balance would be out of the currency transferred with the transaction fees, but I would also lose an additional 0.257 tz.

account: tz1Nm5kshYha1PaUqaDR4T9HnciyfiBM7rd6

operation hashes:

  • op7cmHet8aMYwK659bGhgmDMQVAWL5d8Q7i7wqVLuvpXQHyDiXd

  • oozEMD8YVuNY7Q3PCSMBeP9YguyKAZsnrjwLw4DKcwdZWYzUhLw

  • Please provide more details. It's not clear what you're asking.
    – Tom
    Jul 1, 2019 at 3:42
  • transaction success,but my account lost 0.257,operation hash : op7cmHet8aMYwK659bGhgmDMQVAWL5d8Q7i7wqVLuvpXQHyDiXd, oozEMD8YVuNY7Q3PCSMBeP9YguyKAZsnrjwLw4DKcwdZWYzUhLw
    – taozi
    Jul 1, 2019 at 3:51
  • If the answer solved your problem, could you please accept it?
    – Clement J.
    Aug 8, 2019 at 16:38

1 Answer 1


Both the transactions that you are referencing are the fist transaction to a new address. As you can see on the operations cost table for Protocol 004, 0.257 tz is burned "if the recipient is a new address".

See the second part of this answer to get details on the reason of this cost and this one for the explanation of the 0.257 tz value.

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