LTV models assume churn is permanent. Some of it isn't.
The portion caused by failed payments is recoverable. Reducing involuntary churn by 30% changes every LTV number downstream. This shows the full delta.
A failed payment isn't just one missed charge. It's the entire future revenue from that customer — gone. This calculator translates your churn rate and involuntary churn percentage into LTV numbers and LTV/CAC ratios, so you can see the CFO-level case for payment recovery.
20%
average LTV increase from cutting monthly churn by just 0.5 percentage points
3:1
minimum healthy LTV/CAC ratio for SaaS — below this, growth burns cash
24 mo
compounded LTV improvement modeled over two years
Calculator
Payment processor
Stripe: ~30% of subscription churn is billing failures; automated retries recover ~60% of those
Without recovery
Customer LTV
$7k
LTV / CAC
8.3×
Healthy (> 5×)
Effective monthly churn
3%
With Stripe recovery
Customer LTV
$8k+22%
LTV / CAC
10.2×
+1.8× improvement
Effective monthly churn
2.46%
Revenue retained per customer
cumulative over 24 months
LTV gain per customer
Recovering 60% of failed payments on Stripe adds $1k of lifetime value per customer — before you acquire a single new one. At your current CAC of $800, that's 183% of acquisition cost recovered per existing customer.
Stop the bleeding. From $20/month.
Founder plan at $20/mo — flat fee, no percentage of recovered revenue. Connects in 4 minutes.
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How LTV is calculated
How LTV is calculated
LTV formula: Simple LTV = ARPU ÷ monthly churn rate. A $100 ARPU product at 4% monthly churn has an LTV of $2,500. At 3%, LTV jumps to $3,333 — a 33% increase from a single percentage point of churn reduction. LTV is highly sensitive to churn at the margins.
Involuntary churn's share: If 30% of your 4% churn is involuntary (billing failures), 1.2% of your base churns each month from payment failures alone. Recovering 60% of those failures removes 0.72 percentage points from your churn rate — which improves LTV by approximately 22%.
LTV/CAC impact: Since CAC is fixed and LTV rises with improved recovery, the ratio improves directly. Moving from 3:1 to 3.6:1 on LTV/CAC without changing acquisition cost means each acquired customer generates 20% more lifetime value for the same spend.
24-month compounding: The improvement compounds because each recovered subscription extends the base that future retries operate on. The cumulative revenue delta over 24 months significantly exceeds the first-month gain.
LTV, under the hood
LTV, under the hood
Lifetime value is a function of monthly churn — and most LTV models only count voluntary churn, the customers who decide to leave. Involuntary churn, where a subscription lapses because a card declined and nobody fixed it, gets folded into the same number even though it has nothing to do with whether the customer wanted to stay. That inflates your churn rate, which deflates LTV (LTV = ARPU ÷ monthly churn), which understates how much a customer is actually worth to you over time.
Start with your current LTV (ARPU ÷ monthly churn). Then estimate the involuntary share of that churn — typically 25–50% depending on processor and subscriber mix — and apply a recovery rate to it: recovered churn = involuntary churn × recovery rate. Subtract that from your monthly churn and recompute LTV. The gap between the two numbers is the LTV impact — the lifetime value you're either capturing or leaving on the table depending on how good your retry and dunning setup is.
A 3× LTV/CAC ratio is the commonly cited floor for a sustainable SaaS business — below that, you're spending close to what each customer returns. 5× and above is where the unit economics start to look genuinely strong to an investor or a board. The ratio moves on both sides of the equation, but recovery rate is one of the few levers that raises LTV without touching pricing, product, or acquisition spend — which is why it shows up in diligence conversations more than founders expect.
Because LTV is the inverse of churn, small changes near the bottom of the churn range produce outsized swings in lifetime value — moving from 3% to 2.5% monthly churn is a bigger LTV jump than moving from 6% to 5.5%, even though both are half-point improvements. Each recovered subscription also keeps compounding: it's a customer who stays through next month's billing cycle too, and the one after. That's the mechanic behind the 24-month chart above — the gap between the two lines widens every month, not just once.
Related free tools
Churn Splitter
Separate involuntary from voluntary churn in your metrics
Churn Rate Benchmark
Compare your failure and recovery rate to industry peers
Failed Payment Calculator
Calculate your monthly MRR at risk from billing failures
Payment Recovery ROI Calculator
See the ROI of improving your payment recovery rate
Common questions
Common questions
LTV = ARPU ÷ monthly churn rate. The fastest lever is reducing churn — specifically involuntary churn from failed payments, which requires no product changes. Cutting monthly churn from 3% to 2.5% increases LTV by 20%. For a $100 ARPU product, LTV jumps from $3,333 to $4,000 — $667 more per customer, compounding across the entire base.
A healthy LTV/CAC ratio is 3:1 or higher. You can raise it three ways without touching price: lower CAC (more efficient acquisition), reduce churn (extend customer lifetime), or expand ARPU (upsell). Payment recovery targets churn — specifically involuntary churn — and is one of the fastest LTV/CAC improvements available because it requires no engineering or go-to-market changes.
Payment recovery reduces involuntary churn, which directly lowers your monthly churn rate. Since LTV is inversely proportional to churn, even a 0.3–0.5 percentage point reduction in monthly churn compounds into a 10–20% LTV increase over 24 months.
Simple LTV = ARPU ÷ monthly churn rate. Gross-margin-adjusted LTV = (ARPU × gross margin) ÷ monthly churn rate. Always use monthly churn, not annual, to avoid underestimating lifetime by 10–15%.
A business with $150 ARPU, 3% monthly churn, and $400 CAC has an LTV of $5,000 and LTV/CAC of 12.5. Reducing churn to 2.5% raises LTV to $6,000 and LTV/CAC to 15 — a 20% improvement from fixing payment recovery alone, with no product changes and no acquisition spend.
Start closing the LTV gap this billing cycle.
The improvement compounds from month one. Recurflux handles the billing layer — code-specific retries, dunning sequences, expiry monitoring — so your LTV number starts moving the first month you connect. From $20/month.