Bitcoin change here). Exchanges mostly don't do that because they're evil; they do it because they want to make sure the transaction went through, or else they'll need to deal with support tickets. Check if your wallet includes dynamic fees. Well, the mempool doesnt exist in just one place. Its actually one of the major problems that Bitcoin was created to solve and all wallets are designed to prevent. These days, most wallets support dynamic fees. That Bitcoin is actually comprised of references to many transactions sent to you in the past (assuming accumulated that one Bitcoin from several sources). And as not all transactions can be included in the blockchain straight away, backlogs form in miners mempools (a sort of transaction queue.). For less urgent payments, you can include a lower fee; it will just take a bit longer to confirm. As the Receiver Of course, a transaction can also get stuck if youre on the receiving end.
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Conversely, a high priority transaction will almost surely go through quickly but it will be expensive. One email a day for 7 days, short and educational, guaranteed. When you send this 1 Bitcoin to someone else, your transaction will be composed of bitcoin payment gateway integration php all of these previous references. When you send Bitcoins to someone you are basically selecting different inputs sent to you in the past and forwarding them to the recipient as outputs. Right now, Mycelium is offering me 339 satoshi/byte as an economic transaction fee price, which is still a little expensive, but better than the "normal" price of 419 satoshi/byte. You can spend this change in a next transaction. Reducing transaction fees Best practice There are several ways you can avoid paying high fees.