Handling Address Changes on Active Subscriptions
People move mid-subscription. Without self-service changes and a pick cut-off you ship to the wrong place — and in India the tax treatment changes too.
Over a year-long subscription, a meaningful share of your subscribers will move. A one-off order is shipped before an address can go stale; a subscription is a standing instruction to ship to an address that may quietly stop being correct.
Self-service is not optional
If changing the address requires emailing support, three things follow:
- Some subscribers will not bother, and a box goes to their old address
- Those who do email create a ticket that a form would have handled
- The change may arrive after the pick list is generated
The portal must allow address changes directly. This is one of the six things a subscription portal has to do. Portal requirements.
The cut-off
Address changes have to lock before picking starts. Otherwise someone updates their address while their box sits on the packing bench, and you ship to the old address with the new one on record — the worst combination, because your system says you did it right.
Set the cut-off, show it in the portal, and state it in the renewal reminder: “Change your address by 27 October for your 1 November delivery.”
After the cut-off, the change should apply to the following cycle and the portal should say so explicitly, rather than silently accepting a change that will not take effect.
Tax follows the address
In India, place of supply for goods is where they are delivered. A subscriber moving from Karnataka to Maharashtra changes the GST treatment from CGST+SGST to IGST.
If your invoicing derives tax from the original order rather than the current delivery address, every invoice after the move is incorrect — and it will keep being incorrect, every cycle, until someone notices.
This is a direct consequence of subscriptions having a mutable delivery address where one-off orders effectively do not, and it is a common gap in subscription apps built for other markets. GST on subscriptions.
Serviceability can change too
A subscriber moving from a metro to a remote pincode may move outside what you can reliably deliver to.
Re-validate serviceability on address change, not just at signup. If the new pincode is outside your coverage, tell them immediately rather than discovering it through a failed delivery — and offer a pause or cancellation rather than silently failing.
Failed deliveries to stale addresses
If a delivery fails and the address looks wrong, pause the subscription rather than continuing to ship. Four consecutive failed deliveries to a dead address is four shipping costs, four refund conversations and a customer who ends up angry about something they could have fixed.
Pausing with a clear “we couldn’t deliver — please confirm your address” message converts the failure into a fixable prompt.
Keep a history
Store address changes with timestamps rather than overwriting.
You will need it for tax (which address applied to which invoice), for support (“where did box four go?”), and for disputes. An overwritten address makes all three unanswerable.
Part of our guide to Fulfilling Subscription Orders: Batching, Timing and Exceptions.