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Feature Request: Checkbox to Copy Regular Address to Credit Card Billing AddressAsked by akt1 on December 01, 2014 at 06:26 AM
I would also like this feature.
Unfortunately, even though this can be easily accomplished in the form builder with regular address fields, as described in this guide and demonstrated here, it's not currently possible to autofill the credit card field's billing address, unless the full source of the jotform is used, as described in this other guide.
I have submitted a request to have this functionality in the form builder but I won't be able to state if or when it would be implemented.