Sign-then-Pay

Sign-then-pay lets you collect signatures from multiple parties and then collect payment — all in a single document flow.

How it works

Create a signable document with a payment object
Signers receive signing invitations and sign
After all signers have signed, ZipZign emails the payer a payment link
Payer completes payment
Document status moves to complete

Note: The payer does not see the signature UI. Signers do not receive a payment receipt.

Creating a sign-then-pay document

curl -X POST https://zipzign.com/api/documents \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "type": "signable",
    "title": "Freelance Contract — Widget Inc",
    "content": "<h1>Freelance Contract</h1><p>Both parties agree to the following terms...</p><h2>Payment</h2><p>Total fee: $3,000, due upon signing.</p>",
    "signers": [
      { "name": "Jane Smith", "email": "jane@freelancer.com" },
      { "name": "Client Contact", "email": "contact@widgetinc.com" }
    ],
    "payment": {
      "amount": 300000,
      "currency": "usd",
      "description": "Freelance contract payment — Widget Inc",
      "payerName": "Widget Inc",
      "payerEmail": "billing@widgetinc.com"
    }
  }'

Status lifecycle

created
  → awaiting_signatures   (signing invites sent)
  → all_signed            (all parties signed)
  → awaiting_payment      (payment link sent to payer)
  → paid                  (payment confirmed)
  → complete

Webhooks fired

Event	Trigger
`document.created`	Document created
`document.viewed`	A signer opened the signing page
`document.signed`	A signer signed
`document.status_changed`	Any status transition
`document.paid`	Payment received
`document.completed`	Document finalized

Who gets what

Recipient	Email
Signers	Signing invitation, completion notification
Payer	Payment link (sent after all signatures collected)
Document owner	Completion notification (if configured)

Use cases

Freelance contracts where payment is due on signing
Rental agreements with a deposit
Service agreements requiring both party approval and upfront payment

Updated on: 16/04/2026

Was this article helpful?

Thank you!