Collect payment on signature

Trigger an OpenPay charge when the document is signed.

4 min read Updated 2026-04-24

Add a payment field to any document. The signer enters card details and the charge processes the instant they finish signing. Perfect for retainer agreements and service contracts.

  1. 1
    Insert Payment field
    From the field toolbar.
  2. 2
    Set amount
    Fixed, or map to {{opportunity.value}} or {{document.total}}.
  3. 3
    Pick gateway
    Stripe for cards, ACH, or wallets.
  4. 4
    Signer experience
    Fills card on the same page they sign. One action = signed + paid.