Black Friday
Failed payment
Churn
Tzachi Davidovich
Dec 2, 2025
Every year, subscription businesses bet big on Black Friday promotions. The logic seems sound: offer 50-70% discounts, acquire thousands of new subscribers, and retain them long enough to recoup the acquisition cost.
But new FlyCode analysis of $128M in failed payment transactions over the past two years reveals an uncomfortable truth: 31% of subscribers acquired during promotional periods don't make it to their fourth payment cycle (typically April for Black Friday signups).
And the reason isn't what most Founders and finance teams assume.
The Real Problem: discounted customers use riskier payment cards.
When we analyzed payment decline patterns across eCommerce subscriptions, B2C SaaS, and B2B software companies, we discovered a striking pattern:
Customers who sign up with promotional pricing are 2.3x more likely to use:
- Prepaid debit cards
- Virtual card
- Cards near their limits
- International cards with higher decline rates
These payment methods have fundamentally different failure profiles than standard credit cards used by full-price customers.
Black Friday churn by the Numbers:
- Standard subscribers: 3-5% involuntary churn rate through month 4
- Promotional subscribers: 8-12% involuntary churn rate through month 4
- Break-even point: if most subscriptions need 4-6 months to recoup CAC...
The gap: 31% of Black Friday subscribers never reach profitability
Example: for a subscription business that acquired 10,000 Black Friday customers at a $50 CAC and $20 monthly subscription:
- Investment: $500,000
- Expected 6-month revenue (assuming 5% churn): $1.08M
- Actual revenue (with 31% lost by month 4): $890,000
- Hidden loss: $190,000
Why this happens: the psychology and economics of discount seekers.
Higher price sensitivity = tighter budgets - these customers are more likely to have cards near limits or generic decline/ insufficient funds
If you ran a Black Friday promotion and saw strong signup numbers, check these metrics:
- Payment decline rates by cohort (promotional vs. full-price)
- Failed payment recovery rates by acquisition channel
- Time-to-profitability by pricing tier
- Card type distribution across customer segments
- Error code distribution (soft vs. hard declines)
Most subscription businesses focus on new MRR but they miss the silent killer: involuntary churn in the pre-breakeven window.
Black Friday promotions aren't bad business. But they require different operational playbooks.
If you're planning New years promotional campaigns, factor in: 2-3x higher payment failure rates for discounted cohorts
