Before you submit a transaction, you will see a preview of the transaction that includes information about the price of the cryptocurrency, the transaction fee, and the total amount you will be charged or receive. You have an opportunity to review and accept the transaction before it is processed.
The preview screen is Coinbase's primary mechanism for satisfying its fee disclosure obligations; once you confirm past this screen, you have legally accepted all fees shown, making it essential to actually review it before clicking confirm.
Coinbase's dual-fee structure means retail users pay both an embedded spread (up to 2% of transaction value) and a separate explicit transaction fee on every buy or sell, making the true cost of trading higher than either charge alone suggests. Users paying with debit cards or instant bank transfers face significantly higher fees than those using standard ACH transfers, which can materially affect the economics of small or frequent trades. You can see your exact total fees — including the spread — by clicking the 'Preview' button before confirming any transaction in the Coinbase app or website.