Upgrading or downgrading subscription is the process of editing an existing subscription after the subscription has been created. It can include change of quantity, change of price, or charging a prorated price for the upgraded/downgraded subscription. Pabbly Subscription Billing allows you to upgrade or downgrade subscriptions for your customers. The process of collecting payments while upgrading subscriptions is different with different gateways.
1. Auto-Collecting Payments via Stripe:
Stripe is one of the most popular gateways to collect payments from any part of the world. Stripe allows you to charge directly from your customer's card for collecting one-time or recurring payments. Hence, while upgrading/downgrading the plan if you collect payments from Stripe gateway, your customer's card would be automatically charged on upcoming due dates.
2. Auto-Collecting Payments via PayPal, RazorPay Subscription, or other Payment Gateways:
While purchasing or creating the subscription, your customer can pay via PayPal, RazorPay Subscription, or any other gateway that you've integrated into your account. But while charging for a subscription upgrade, auto-deduction would not function if the payment gateway is not Stripe.
To solve this, A Payable invoice can be sent to your customer on their email with the due amount if you choose the payment method as "offline/create invoice" while upgrading the plan. They'll have the option to pay through any of the gateways that you're offering for that particular plan.
Note: A prorated due amount would be calculated and generated by the system depending upon the time when the subscription is being edited within the billing cycle. 
Pabbly Subscription Billing Team•Updated Jul 25, 2026•1 min read
