Well, this article says that Pay By Refund can use a Signature pad.

Pay-by-Refund enhancements: You can now use the one-stop convenience of enrolling for Pay-by-Refund anytime in My Account. The new streamlined process means you no longer have to wait to enroll, and it’s easier than ever with fewer steps and one-stop convenience.

In addition, Pay-by-Refund in ProSeries Professional now has signature pad integration. Now, you can collect digital signatures in person from your Pay-by-Refund clients using a signature pad (sold separately). You no longer have to waste time, paper, printer toner and storage space. Keep all Pay-by-Refund and e-filing paperwork organized at your fingertips with a digital signature pad integrated with ProSeries.

Read more about these updates and additional enhancements. Be sure to visit your Personalized Training Portal, where you will find bite-sized training modules with content, videos and webinars about these features and more.