You can now preview details of the next billing amount for a particular subscription. This detailed preview will give you the exact information of the plan, coupons, addons, and credits that are linked to a particular subscription. Account Credits are not taken into account.
Log in to your Chargebee site, open a subscription, and under the "Subscription Info" section click details:
A preview of the Next Billing Amount will be displayed as shown:
If you use Chargebee's API, you can also use the Subscription Renewal Estimate API for an estimate of the next billing amount for a subscription renewal.