--- title: "How to Change Your Payment Provider: The Complete Guide" description: "Changing PSP: the key steps to choose and integrate a new payment provider, and succeed a migration that supports your growth." image: https://go.stancer.com/hubfs/article_comment-changer-de-prestataire-de-paiement-le-guide-complet-1.avif --- [Skip to content](https://go.stancer.com/en/blog/payment/how-to-change-your-payment-provider-the-complete-guide#main-content) ![](https://go.stancer.com/hs-fs/hubfs/Logo%20stancer@2x.png?width=300&height=46&name=Logo%20stancer@2x.png) - Products Show submenu for Products - [Online payment](https://stancer.com/fra/en/online-payment) - [Payment terminal](https://stancer.com/fra/en/payment-terminal) - [Tap to Pay on iPhone](https://stancer.com/fra/en/tap-to-pay-on-iphone) - [Payment link](https://stancer.com/fra/en/payment-link) - [Documentation](https://docs.stancer.com/en/) - [Pricing](https://stancer.com/fra/en/pricing) - [Blog](https://go.stancer.com/blog) Open main navigation Close main navigation - Products Show submenu for Products - [Online payment](https://stancer.com/fra/en/online-payment) - [Payment terminal](https://stancer.com/fra/en/payment-terminal) - [Tap to Pay on iPhone](https://stancer.com/fra/en/tap-to-pay-on-iphone) - [Payment link](https://stancer.com/fra/en/payment-link) - [Documentation](https://docs.stancer.com/en/) - [Pricing](https://stancer.com/fra/en/pricing) - [Blog](https://go.stancer.com/blog) - - [English](https://go.stancer.com/en/blog/payment/how-to-change-your-payment-provider-the-complete-guide) - [French](https://go.stancer.com/blog/paiement/comment-changer-de-prestataire-de-paiement-le-guide-complet) - [Start now](https://signup.stancer.com/en/sign-up/) [Start now](https://signup.stancer.com/en/sign-up/) - [English](https://go.stancer.com/en/blog/payment/how-to-change-your-payment-provider-the-complete-guide) - [French](https://go.stancer.com/blog/paiement/comment-changer-de-prestataire-de-paiement-le-guide-complet) Payment ![Transition entre deux prestataires de services de paiement](https://go.stancer.com/hubfs/article_comment-changer-de-prestataire-de-paiement-le-guide-complet.avif) Andréa • 12 novembre 2026 • 4 min de lecture # How to Change Your Payment Provider: The Complete Guide Discover the key steps to select and integrate a new PSP. Learn how a well-planned migration can support your business growth. Partager : Sommaire Newsletter ### Stay in the loop Get our latest articles and tips straight to your inbox. In today's business landscape, the smoothness and efficiency of financial transactions are crucial. Changing payment service provider (PSP) can be a strategic step to optimize your operations or adapt your business to sales growth. Let's start with the basics. ## What is a PSP? A PSP, or payment service provider, facilitates online transactions by connecting merchants, banks, and customers. It ensures the security and efficiency of payments. ## Why should you change? The reasons can vary: more favorable costs, additional features, or better compatibility with your needs. For example, Stancer is a 100% French PSP, GDPR-compliant. Stancer offers competitive pricing, with a subscription-free, commitment-free offer ideal for small merchants and independents. ## The migration steps Here is a detailed plan for a successful migration. ### Identify your new PSP To choose a new PSP, consider the criteria relevant to your business, such as cost, reputation, security, integration terms, and features. Many reviews and comparisons are available online; you can also reach out to each PSP you're considering for your business. ### Subscribe with your new PSP Register with the new PSP. This step is necessary to access the features offered by the new PSP and often requires submitting supporting documents about your company. ### Integrate the new PSP Before integrating your new PSP into your environment, choose an integration appropriate to your situation. Many integrations are available, including: - API integration, - Redirect pages from your merchant website, - Integration via a CMS (PrestaShop, WooCommerce, Magento, or other), - Native integration within your website and/or application. Then, carry out thorough testing to make sure everything works well with your new PSP. There are several things to check with a new PSP, such as payments, refunds, disputes, and others. Make a list of the functions you need to verify in your PSP and make sure everything is functional. Depending on the products or services you sell, the rest of the integration phase differs. #### Your customers make one-off purchases One-off purchases are occasional payments made for the goods and/or services you sell. In this configuration, integrating the new PSP simply means integrating the new PSP by following the steps in this guide, with no transfer of sensitive data required. #### Your customers also make recurring purchases Recurring purchases are those made with regular payments. Examples include gym subscriptions or course enrollments with monthly payments, and others. In this configuration, a migration is necessary. The migration strategy is organized into two groups: 1. The "new base": these are the new customers you will have after switching PSP. For them, integration is immediate. 2. The "existing base": to ensure the proper functioning of your recurring payments, you must organize the takeover of the existing customer base and their sensitive data (bank card data, direct debit mandates). Otherwise, you may not be able to charge this part of your clientele. #### How to take over the existing base? To transfer the payment data of your existing base, contact your new PSP, which will handle the transition and secure transfer of this sensitive data. Make sure they implement all the appropriate measures to carry out this transfer and store this data. To that end, Stancer provides support and manages the recovery of sensitive payment data at no extra cost with your former PSP. Stancer's IT infrastructure is certified PCI DSS Level 1, guaranteeing the security of your data and that of your customers. All data stored by Stancer is hosted in France. During the entire phase of taking over the existing base, payments for this part of your clientele are handled by your former PSP. Once the migration is complete, your existing base can then be processed through your new PSP. ### Finalize the transition to your new PSP Before ending the relationship with your former PSP, make sure you have performed all necessary actions and backups, including any pending refunds. Failed payments can occur up to 13 months after the date of a payment. It is therefore important to maintain functional access to your former PSP's administration tools for this period. By following these steps and carefully considering your needs and those of your customers, you ensure a safe and efficient transition to a new PSP that can support your growth. Need a new PSP? [Sign up on Stancer](https://signup.stancer.com/en/sign-up) now. 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