Is there a fee to transfer Apple Cash to my bank account?

There is a fee for an Instant Transfer to a debit card but no fee for a 1 to 3 day transfer to a bank account. See the following from Transfer money in Apple Cash to your bank account or debit card - Apple Support

There are no fees to transfer your money from Apple Cash to your bank account, unless you use an Instant Transfer.

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A 1 percent fee (with a minimum fee of $0.25 and a maximum fee of $10) is deducted from the amount of each Instant Transfer.