Stripe will send an email receipt for an Invoice automatically when all of the following are true:

• The "Email customers about successful payments" Dashboard setting is enabled.

• The Invoice was created in live mode. Email receipts are not sent automatically in test mode.

• A charge/payment was actually made for the Invoice. When the amount owed for an Invoice is less than the minimum allowed charge for the Invoice's currency, the Invoice is automatically marked as paid without a payment method being charged. The amount due is instead added to the Customer's credit balance and is applied to the next Invoice.

• The associated Customer has an email address set when the Invoice is finalised.