What is PIS? Naomi June 08, 2018 10:24 Updated Follow PIS stands for Payment Initiation Services. It is performed by a Payment Initiation Service Provider (“PISP”) who can, with the consent of the end-user, initiate a payment on their behalf between multiple accounts the end-user holds. Related articles What is AIS? What if I’m not intending to show data back to end-users as an AIS? Do I need to be regulated to provide PIS ? Comments 0 comments Please sign in to leave a comment.