The PayPal fixed fee is a set amount that is charged in addition to the percentage-based fee for certain types of transactions. The fixed fee varies depending on the currency used for the transaction and the type of transaction. For example, as of 2021, the fixed fee for transactions in the US is $0.30 for payments for goods and services. The fixed fee is charged on top of the percentage-based fee, which is typically 2.9% of the transaction amount.