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Glossary · Retention

Dunning

The process of retrying failed recurring payments. Weak dunning turns solvable payment failures into involuntary churn, quietly erasing retention gains.

  • Reviewed
  • 3 min read
  • Part of the 14 term glossary
  • Median finding $58k a year across 74 audits
01

What Dunning means

Dunning is the process a subscription business runs when a recurring payment fails: retrying the charge on a schedule, asking the customer to update an expired or declined card, and deciding when to pause or cancel the account. A payment can fail for reasons that have nothing to do with the customer wanting to leave, such as an expired card, a bank decline or a low balance on the day.

Customers lost that way are involuntary churn, and they are the cheapest customers a business will ever win back, because they never decided to go. A dunning process that gives up after one retry, sends one generic email, or cancels before the card is updated turns a fixable billing event into a lost subscriber, and the retention report books it as ordinary churn.

02

The Dunning formula and a worked example

The formula and an illustration; the corpus line is the audited figure behind it.

Involuntary churn = failed payments not recovered ÷ active subscribers

Worked example Illustration, not a client figure

2,000 subscribers, 120 failed payments a month, 40 recovered: 80 lost, a 4% monthly involuntary churn before anyone chose to leave.

03

Why Dunning matters in an audit

In an audit of a subscription business, involuntary churn is separated from voluntary churn before anything else is read. Blended churn mixes the customers who chose to cancel with the customers whose card simply failed, and the two need opposite fixes: one is a product and pricing question, the other is a billing workflow. The audit reads the payment processor's decline and recovery logs beside the cancellation data to size each.

Retention leaks appeared in 41% of the 74 audits, and leaky retention accounted for 7% of audited SMB marketing spend. Weak dunning is the part of that leak with the quickest fix, because the remedy is a retry schedule, a card updater and a clearer message rather than a new offer, and every recovered subscriber was already paid for once.

It also distorts the marketing numbers around it. When involuntary churn is high, lifetime value is understated, payback looks longer than it is, and the business spends more on acquisition to replace subscribers it did not need to lose. The audited cases below include the dunning finding itself and the billing and retention leaks an audit reads beside it.

04

Dunning in the audited cases

Case 52 is the dunning finding; the others are the billing and retention leaks an audit reads beside it, each with the audited annual figure.

06

Questions about Dunning

What is dunning?

Dunning is the process of recovering failed recurring payments: retrying the charge, prompting the customer to update the card, and deciding when to pause or cancel. Good dunning keeps customers who never meant to leave.

What is involuntary churn?

Involuntary churn is subscribers lost to failed payments rather than to a decision to cancel. 2,000 subscribers with 120 failed payments a month and 40 recovered lose 80 a month, a 4% monthly involuntary churn before anyone chose to leave.

How do you reduce involuntary churn?

Measure it apart from voluntary churn first, from the payment processor's decline and recovery logs. Then fix the retry schedule, turn on the card updater the processor offers, write a clear recovery message, and pause rather than cancel while the card is updated. The audit sizes the recoverable revenue before the fix. Read the subscription audit page →

Know the term. Now measure it in your own numbers.

Dunning, measured against your own accounts in 5 to 7 working days. $10k to $50k of findings, or your money back.

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Fixed fee. No retainer. NDA first.

Go deeper

Dunning and the wider audit evidence