Lost MRR Calculator

40% of SaaS churn happens without the user wanting to cancel — their credit card simply fails. Use our interactive calculator to simulate the impact on your recurring revenue and how much you could recover.

See how much you're losing (silently)

Cards expire, banks decline charges, and you lose subscribers without ever knowing. Use this calculator to see your real revenue leak.

Your Current Metrics

Adjust the values to simulate your real Stripe scenario.

Monthly Recurring Revenue (MRR)

MRR Volume5,000$

Failed Payment Rate5%

Typically 5%–10% of B2C/B2B payments fail each month.

Revenue Lost Per Year

3,000$

That's code you shipped that you're not getting paid for.

Recoverable with Dunning Lite

+1,200$/year

Estimated monthly recovery:+100$

Dunning Lite cost (29$/mo):-348$

Net ROI (Profit):+852$

Add your email to join the closed Beta and start recovering your revenue.

Executive Summary (TL;DR)

•On average, 5% of all subscription transactions fail every month.
•Without an active dunning system, you cumulatively lose key dollars from your Lifetime Value (LTV).
•Connecting Dunning LITE to your Stripe account automates a 40% recovery rate instantly.

Involuntary Churn: The silent MRR killer

Building a SaaS is hard. Acquiring users is even harder. That's why it's a tragedy when, after getting someone to love your product, you lose them because their American Express card was replaced or their bank blocked the payment due to insufficient funds. This is called passive or involuntary churn.

B2B Benchmarks: What does the data say?

Standard Failure Rate: Between 4% and 7% of transactions fail every month.
Stripe's Basic Dunning (Smart Retries) recovers on average only 15–22% of those failed payments.
Optimized Multichannel Dunning (Dunning LITE) scales that recovery up to 40–60%.

How can I plug this leak?

The manual approach is to go to your Stripe Dashboard, search for failed payments month by month, and send a one-off email to each customer from your Gmail asking them to update their card. This doesn't scale and you'll forget.

The smart solution is to connect a specialized Dunning tool. Dunning LITE connects to your Stripe in 2 clicks and springs into action only when a charge fails. It analyzes the error code (bank, CVC, expiry) and fires a hyper-personalized recovery sequence.