⏱ 3 min
Pay in 3 gives shoppers a simple way to spread the cost of a purchase across three instalments over 90 days.
For merchants, this means:
- higher checkout flexibility
- stronger conversion and AOV potential
- full brand control in the buyer journey
- less operational effort after purchase
Pay in 3 payments can be processed via direct debit or, depending on the contractual agreement, via bank transfer.


- The buyer selects Pay in 3 during checkout.
- The merchant sends a PAYMENT_REQUEST to Ratepay with:
- buyer data
- SEPA bank data
- shopping basket data
- payment data
- Ratepay returns the transaction result.
- If the transaction is rejected, the reason should be shown and the buyer should choose another payment method.
- If the transaction is accepted, the merchant can continue with order confirmation.
- When the goods are shipped, the merchant sends a CONFIRMATION_DELIVER request to Ratepay.
After successful delivery confirmation:
- the contractually agreed payout timeline starts
- the claim is transferred to Ratepay
- Ratepay sends the instalment plan to the buyer
- the required buyer communication, including the invoice, must be sent
- for direct debit, collection from the buyer’s account takes place on the 2nd day of each month
- for bank transfer, the buyer due date is the 28th day of each month
To implement Pay in 3 successfully, use these resources: