Summary
Passive churn — subscription loss caused by payment failure rather than a deliberate cancellation — is one of the most recoverable forms of churn, but recovering it requires more than simply retrying a failed payment. The following recommendations are based on Piano's data on passive churn prevention feature performance and are designed to help clients maximize retention rates.
Why Payments Fail
Payment failures fall into three broad categories, and understanding the cause matters for how you respond.
User-related failures are the most common and the most recoverable. They include insufficient funds, expired cards, and account limitations; issues that are often temporary and resolve on their own within a few days.
Payment processor-related failures stem from system outages, fraud prevention triggers, insufficient processing capacity, or connectivity issues. These are generally outside the subscriber's control and may resolve without any action on their part.
Business-related failures are caused by configuration errors, price increases (particularly relevant in the EU under PSD2 regulations), retry attempts that have exceeded card network thresholds, or transactions initiated at times that trigger fraud detection systems.
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Active churn – when users intentionally cancel their subscriptions.
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Passive churn – when users unintentionally churn because of a technical reason (in most cases because of payment failures)
Retry Strategy
Retrying failed payments is the foundation of any passive churn prevention approach, but how you retry matters as much as whether you do.
A maximum of eight retries is recommended. Recovery rates beyond eight attempts are not zero, but they are low enough that the risk of triggering fraud detection systems or incurring card network penalty fees outweighs the benefit.
Rather than spacing retries at fixed intervals (every X days), configure retries on specific days within the grace period — for example, days 1, 3, 5, 9, and 15. This approach serves two purposes: it gives subscribers more time to resolve payment issues between attempts, and it allows retries to be timed around dates when subscribers in a given market are most likely to have been paid.
Avoid high-density retry schedules over long grace periods. A large number of attempts in a short window increases the risk of errors, card network penalties, and additional processing charges from Visa and Mastercard.
Renewals are initiated by Piano up to eight times per day. Depending on the client's time zone, some of these attempts may fall between 1 a.m. and 6 a.m. local bank time — a window when banks and payment processors typically run heightened fraud detection with reduced human oversight, resulting in higher decline rates. Piano's "retry at specific time" setting of the Passive Churn Prevention feature allows clients to set a preferred charge window to avoid this. Contact your Piano Account manager to enable it.
Retry Timing and EU Pricing Considerations
Clients operating in Europe should be aware that price increases on existing subscriptions can trigger payment declines under PSD2 regulations. If a subscription's original payment consent did not account for the new price, the subscriber may need to re-authenticate the transaction via 3D Secure. Piano's passive churn prevention includes a 3DS failure scenario to guide subscribers through this re-authentication process on-session.
Email Communication
The mechanics of retries address the technical side of passive churn, but for payments that cannot be recovered through retries alone, the quality of subscriber communication becomes the primary lever. Use a distinct email template for each retry attempt, with each successive message conveying greater urgency than the last. A subscriber who ignored the first notice may act on the third if the stakes are made clearer. Generic, one-size-fits-all messaging underperforms significantly compared to a sequenced approach.
Card Network Retry Fees
Visa and Mastercard both impose fees on excessive retry attempts, and non-compliance can result in financial penalties, increased merchant risk scoring, or in extreme cases, temporary account suspension. Understanding the rules for each network is essential to staying compliant.
Visa classifies declines into four categories. Category 1 declines — which include stolen cards, closed accounts, and invalid account numbers — are hard declines, and no retries are permitted. Any retry on a Category 1 decline will incur a fee. Categories 2 through 4 are soft declines, and Visa permits up to 15 retries within a 30-day window before fees apply.
Retry fees for Visa are $0.10 per transaction for domestic retries (US, Canada, EU, LAC, AP) and $0.15–$0.25 per transaction for cross-border retries, depending on region.
Mastercard uses Merchant Advice Codes (MACs) to signal when retries should not be attempted. Codes 03 and 21 explicitly indicate that no retry should be made; fees apply to any subsequent retry following one of these codes within a 30-day period. For soft declines more broadly, Mastercard permits up to 10 retries within a 24-hour period, after which fees apply. Retries exceeding 35 in a 30-day period are subject to additional charges.
Mastercard MAC fees range from $0.03 (US, Canada) to $0.50 per transaction (EU, LAC, AP), with soft decline fees varying from $0.30–$0.55 depending on region, with higher rates taking effect in 2025.
Piano currently does not support automatically aborting a retry strategy based on hard decline codes. However, clients can configure their own retry logic by decline reason — for example, setting zero retries for error codes associated with hard declines — to avoid triggering excessive retry fees from Visa.