Smart retries are automated payment retry systems that use data and algorithms to pick the best moment to try a failed payment again. Instead of blindly retrying every 24 hours, smart retries analyze the failure type, customer patterns, and historical data to maximize success rates.
Stripe calls theirs "Smart Retries." Other processors have similar features. They're included free with most billing platforms, but they're not a complete solution.
How smart retries work
Traditional retries follow a fixed schedule: try again in 1 day, then 3 days, then 5 days. Smart retries are dynamic.
The system considers:
The decline code. "Insufficient funds" needs different timing than "processing error." The algorithm knows which failures are worth retrying and when.
Historical patterns. What time of day do this customer's payments usually succeed? What day of the month? The system learns from past transactions.
Network-wide data. What's working for similar customers? If Tuesday morning has 23% higher success rates for this card type, that's when the retry happens.
Real-time signals. Bank systems have good days and bad days. Smart retries can detect patterns and adjust.
The result: instead of a 35% recovery rate with fixed retries, you might see 45-50% with smart retries. That's meaningful when you have thousands of failed payments.
What Stripe Smart Retries does
Stripe's Smart Retries are the most well-known implementation. Here's what they actually do:
- Automatically enabled for Stripe Billing subscribers
- Analyze decline codes and retry only recoverable failures
- Use machine learning trained on billions of transactions
- Pick retry timing based on card network, bank, and historical success
- Run up to 4 retry attempts over ~3 weeks
You don't configure anything. Stripe handles the timing and logic automatically.
According to Stripe, Smart Retries recover about 15% more revenue than fixed retry schedules. On $100K of failed payments, that's $15K difference.
The limitations of smart retries
Smart retries are good, but they're not enough. Here's what they don't do:
No customer communication. Smart retries are invisible. If they fail, the customer has no idea there's a problem until their subscription gets canceled.
No multi-channel. It's all happening in the background. No email, no SMS, no way to prompt the customer to update their card.
No hard decline handling. Smart retries know not to retry expired cards, but they don't send the customer an email asking for a new card. The payment just sits there failing.
Black box. You can't see what the algorithm is doing or adjust the strategy. If Stripe's approach doesn't fit your business, tough luck.
Limited to soft declines. Smart retries only help with recoverable failures. For hard declines (20-30% of failures), you need actual dunning.
Smart retries vs dunning tools
| Feature | Smart Retries | Dunning Tools |
|---|---|---|
| Automatic payment retries | Yes | Yes |
| Customer emails | No | Yes |
| SMS notifications | No | Some |
| Hard decline handling | No | Yes |
| Customizable sequences | No | Yes |
| Analytics dashboard | Basic | Detailed |
| Price | Free (with Billing) | $50-500/month |
Smart retries and dunning tools aren't either/or. The best setup uses both:
- Smart retries work silently in the background
- Dunning emails go out in parallel
- If retry succeeds, cancel remaining emails
- If retries fail, dunning becomes the recovery path
This combined approach typically recovers 60-70% of failed payments, compared to 40-50% with smart retries alone.
Do you need more than smart retries?
Smart retries alone are probably fine if:
- Your payment failure rate is low (< 3%)
- You're an early-stage startup focused on other priorities
- You don't have bandwidth to manage dunning campaigns
- Most of your failures are soft declines
You need dunning on top of smart retries if:
- Payment failures are eating significant MRR
- You have lots of expired cards (hard declines)
- Your customer emails aren't getting opened
- You want SMS for critical recovery messages
- You need visibility into what's working
The math is usually straightforward. If you have $5K in monthly failed payments and a dunning tool costs $100/month, you only need to recover an extra 2% to break even. Most tools recover 15-25% more than retries alone.
Setting up smart retries
If you're on Stripe Billing, Smart Retries are already running. Check your settings:
- Go to Stripe Dashboard → Settings → Billing
- Look for "Smart Retries" or "Revenue Recovery"
- Make sure it's enabled
- Review the retry schedule settings
Other processors have similar features:
- Braintree — Automatic retry logic
- Recurly — Intelligent retries
- Chargebee — Smart dunning retries
If you're using the Stripe API directly (not Billing), you'll need to implement retry logic yourself or use a third-party dunning tool.
The bottom line
Smart retries are table stakes. They're free, they work in the background, and they recover a meaningful chunk of soft declines.
But they're not a complete solution. For hard declines, you need customer communication. For maximum recovery, you need multi-channel dunning. Smart retries are the foundation — dunning is the house you build on top.