Blog · Educational guide · Retention
How to reduce churn in a subscription program
Churn is the hole where your recurring revenue leaks out. The good news: most of it is avoidable, and a huge share (declined charges) can be recovered with concrete changes. This is the guide to plugging it.
Published September 16, 2026
You can have the best product and add subscribers every month, but if churn is high, your MRR is a leaky bucket: it comes in at the top and drips out the bottom. Reducing churn usually has more impact on growth than adding new customers, and much of that churn is not 'the customer who wants to leave': it is avoidable.
What churn is (and how to calculate it)
Churn is the percentage of subscribers (or revenue) you lose over a period. It is the flip side of MRR: it measures how much slips away.
Customer churn = cancellations in the month ÷ active subscribers at the start of the month.
Illustrative example: if you start the month with 500 subscribers and 25 cancel, your monthly churn is 5%.
Involuntary churn: the failed charge
The customer does not want to leave, but the charge is declined and the subscription drops. It is one of the biggest sources of churn, a silent one, and the easiest to recover. Typical causes: expired card, insufficient funds, bank decline and, very importantly in LATAM, international processing that approves less than local processing.
Bill with a local payment method
Mercado Pago (a local acquirer) approves more than international processing.
Automatic retries
The failed charge is retried automatically, with no work from your team.
Pre-charge reminder
Let the customer know a few days ahead so they have funds or update their card.
'Charge declined' notices
Notify the customer as soon as a charge fails so they can update the payment method.
Voluntary churn: the customer decides to leave
Here there is a real decision, and it almost always has a concrete cause you can prevent.
'I have too much'
Offer skipping a delivery or pausing, not just cancelling.
'I want to switch'
Let them change products or plans without cancelling.
'I don't see the value'
Improve onboarding, educate about usage and reward continuity.
Price
Reinforce with non-monetary benefits: shipping, exclusivity, community.
Concrete levers to lower churn
1. Bill locally
In LATAM, moving from international processing to Mercado Pago recovers involuntary churn from day one.
2. Pause instead of cancel
Let the portal skip a delivery or pause the subscription. Many cancellations are really 'not right now'.
3. Switch without friction
Change product, flavor or size without cancelling.
4. Pre-charge reminder
Notifying before billing reduces declines and surprises.
5. Reward continuity
A one-time gift or benefit on key cycles (for example month 3), right when the customer is weighing whether to quit.
6. Minimum commitment when it makes sense
To protect early retention, when the model allows it.
7. Subscriber onboarding
Show them how to get the most out of the subscription during the first cycles.
With Reval, several of these levers come built in: billing with Mercado Pago, retries, the pre-charge reminder ('Upcoming renewal'), a self-service portal to pause and switch, and rewards on specific cycles. The dashboard also shows cancellation reasons, so you know what to fix.
What you don't measure, you can't reduce
Before acting, split your churn into voluntary and involuntary. If you don't tell them apart, you may be redesigning your offer when the real problem is bounced charges (or the other way around). Watch your churn rate month by month, its causes, and prioritize the highest-impact lever. In many cases, involuntary churn is the lowest-hanging fruit.
The first fix, especially in LATAM
If you sell in the region and bill through international processing, you are very likely losing subscribers to declined charges without even seeing it. Billing with Mercado Pago changes that.
Shopify does not bill subscriptions with Mercado Pago natively, and neither do the global apps. With Reval you can bill your subscriptions with Mercado Pago on your current Shopify store, with no Shopify Plus and no migration. It is, very often, the fastest way to lower churn.
FAQ
Frequently asked questions
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