What is dunning management? A 2026 guide for Singapore

Key takeaways:

• Dunning management is the process of recovering failed or overdue payments through retries, reminders, and clear escalation rules, so customers who still want to pay aren’t lost by accident.

• Dunning covers two jobs: subscription dunning for failed card or auto-debit charges, and invoice dunning for overdue invoices.

• Airwallex Subscription Management has built-in dunning for failed subscription payments, and Invoicing sends automated reminders for overdue invoices, so you can handle both in one payment platform.

Dunning management in Singapore is the process of recovering failed or overdue payments before a paying customer is lost by accident.

It uses automated retries and clear reminders to fix the problem while the customer still wants your product.

This guide explains what dunning management is, how it works, and why payments fail in Singapore. You’ll also find sample dunning emails, a setup checklist, and the metrics to track.

What is dunning management?

Dunning management is the process of recovering failed or overdue payments through automated retries, customer reminders, and clear escalation rules.

Its goal is to collect what’s owed and keep the customer, by fixing the problem before the account lapses.

Here’s a quick overview of dunning management:

What a dunning process includes

A typical process has four parts. Most of the customer contact runs through email, text messages, and in-app notices.

• Automatic retries of the failed charge

• Reminders that tell the customer what went wrong and how to fix it

• Status changes that show whether the account is active, unpaid, or cancelled

• Escalation rules for when retries and reminders don’t work

What dunning management is (and isn’t)

Dunning is an early-stage payment recovery process designed to collect overdue payments and retain customers. It relies on automated retries, reminders and escalation rules rather than formal debt recovery.

Dunning is often confused with a few related terms:

• Payment retry: One attempt to collect a failed subscription payment. Retries are one part of subscription dunning, not the entire process.

• Payment reminder: A message asking a customer to resolve a failed charge or overdue invoice. A reminder is one step in dunning, not a complete recovery process on its own.

• Dunning letter: A formal notice, usually used in invoice dunning, to request payment when an invoice remains overdue after earlier reminders.

• Debt collection: A later-stage process used when standard payment recovery efforts have failed. Unlike dunning, it may involve a third-party collection agency or more formal recovery action.

For the invoice side of payment recovery, see our guide to accounts receivable.

Subscription dunning vs invoice dunning: which one do you need?

People use “dunning” for two different jobs, and the one you need depends on how your customers pay. This guide focuses on subscription dunning, but many Singapore businesses need both.

Here’s a quick overview:

If you charge cards on file for software or memberships, you need subscription dunning. If you send invoices on credit terms and wait for payment, you need invoice dunning.

A Singapore software company that bills some customers by card and others by invoice needs both.

Why dunning management matters: lost customers and revenue

When a payment fails, it doesn't always mean the customer wants to leave. Their card may have expired, a bank may have declined the charge, or they may simply have missed an invoice reminder.

Without a process to follow up, you could lose a customer who would have been happy to keep paying.

Voluntary vs involuntary churn

Voluntary churn happens when customers choose to cancel, perhaps because of the price, product or service. Involuntary churn happens when a payment fails and the issue isn't resolved.

Industry estimates suggest involuntary churn accounts for 20% to 40% of total churn at subscription businesses¹, although the actual share varies. Tracking your own failed payments and cancellations will give you a better idea of how much revenue you could recover.

Why it matters for Singapore businesses

If you collect payments from overseas customers or accept different payment methods, including cards, General Interbank Recurring Order (GIRO) and PayNow, payment failures can happen for different reasons.

Without a clear follow-up process, a failed payment could mean losing a subscription unnecessarily.

Dunning helps you follow up on failed payments, identify which ones you can still recover and distinguish them from revenue you've genuinely lost.

How to estimate lost revenue

You can get a rough estimate using three numbers from your billing system:

Then use this formula to estimate lost revenue:

Estimated monthly revenue lost = MRR × failed payment rate × unrecovered share

This is a rough estimate rather than an exact figure, since MRR and payment failure rates may be calculated differently across billing systems. It also doesn't capture the future revenue you could lose if an unrecovered payment leads to a customer cancelling.

How dunning works

Imagine a customer’s monthly subscription payment fails because their card has expired. Here’s how the dunning process may unfold:

Stage 1: Prevent problems before they happen

Dunning can start before a payment fails. You can remind customers when their cards are about to expire and keep billing contact details up to date, so payment notices reach the right person.

These small steps can prevent some failed payments before you need to retry a charge or follow up.

Stage 2: Retry the failed payment

When a charge fails, the subscription may be marked as unpaid, and the billing system can retry the payment according to a set schedule. Spacing retries over several days gives temporary issues, such as insufficient funds, a chance to clear.

But retries won't fix every problem. If a card has expired or an account has been closed, the customer may need to update their payment details before another attempt can succeed.

Stage 3: Tell the customer what to do

Payment reminders can run alongside retries. A useful message explains that the payment failed, states the amount due and tells the customer how to resolve the issue, such as by updating their card details through a secure link.

You don't necessarily need to send an email after every failed attempt. Set a schedule that gives customers enough information to act without overwhelming them with notifications.

Stage 4: Decide what happens next

If a retry succeeds or the customer updates their payment details, the payment can go through and the subscription can continue. If the payment remains outstanding after all retries, your rules should determine what happens next.

You might pause or cancel the subscription, or leave it unpaid while your team follows up. Decide on this process in advance so your team knows how to handle unresolved payments.

With Airwallex Subscription Management, a failed automatic charge moves the subscription to an unpaid status. If a retry succeeds, the subscription returns to active and billing continues.

Why subscription payments fail in Singapore

The reason a payment fails determines what you should do next. Singapore businesses may collect payments through cards, GIRO and PayNow, and each method has different failure points and recovery options.

Card payments

Card payments can fail because a card has expired or been replaced, the customer has insufficient funds or credit, or the issuing bank declines the transaction. Cross-border payments may also face additional checks, which can lead to a declined charge.

GIRO deductions

GIRO lets businesses collect payments directly from a customer's bank account, with the customer's authorisation. A deduction may fail because there isn't enough money in the account, the payment exceeds the customer's GIRO limit, or the arrangement has ended.

Depending on the reason, you may be able to try the deduction again or need the customer to take action.

PayNow and bank transfers

With PayNow and bank transfers, customers generally initiate each payment themselves, rather than having the billing system charge them automatically.

If a payment doesn't come through, you usually can't retry it automatically. Instead, send the customer a reminder with the amount due and instructions for making the payment.

What to do when a payment fails

Use this table as a quick reference for common payment failures and the next step to take.

Manual vs automated dunning

Manual dunning relies on your team to spot failed payments, track follow-ups and contact customers. Automated dunning uses predefined rules to handle routine retries and reminders, reducing the amount of work your team needs to do.

Here’s a quick overview:

Automation doesn't mean you can stop monitoring payments altogether. Your team still needs to handle cases that retries don't resolve, respond to customer questions and review recovery results.

How payment retries work in Singapore

There’s no magic number of retries that works for every business. The right schedule depends on why the payment failed and how often you bill customers.

Retry temporary failures, but don't keep retrying permanent ones

If a payment fails because of insufficient funds or a temporary bank issue, waiting a little before trying again may give the customer time to resolve the problem. But if the card has expired or the account is closed, another attempt won't help until the customer updates their details.

Payment networks and providers also have rules about retrying declined charges, so repeatedly trying the same payment isn't always allowed. GIRO deductions work differently, with the business deciding whether to request another deduction under the applicable bank rules.

Set retry timing around your billing cycle

Your retry schedule should fit the billing cycle. A daily subscription has less time to recover a failed payment than a monthly one, which can allow retries to be spread over a longer period.

In Airwallex Subscription Management, the retry schedule depends on the billing cycle:

• Daily plans: One retry two hours after the payment fails.

• Plans of two to six days: One retry per day, with up to six attempts.

• Plans of seven days or longer: One retry every two days, with up to eight attempts over 14 days.

If these default schedules don't fit your business, you can request a custom retry schedule from Airwallex.

Use your own data to fine-tune the schedule

The timing of a retry can affect whether a payment goes through. For example, a customer who had insufficient funds might be able to pay after their next payday. But there's no single payday-based schedule that works for every Singapore business.

Look at your own recovery data before changing the timing. Compare success rates across different retry days and intervals to see which schedule works best for your customers.

Dunning email examples: what to say and when to send them

A good payment reminder is clear, polite and tells the customer how to resolve the issue.

Here's a sample email sequence and what to keep in mind under Singapore's Personal Data Protection Act (PDPA).

Example: first failed payment email

Subject: We couldn't process your payment

Hi [Name],

We couldn't process the S$[amount] payment for your [plan name] subscription.

Please update your payment details by [date] to avoid any interruption to your subscription:

[Update payment details]

If you've already updated your details or need help, just reply to this email and we'll be happy to assist.

What to include in every payment notice

Keep each message focused on the information the customer needs:

• What happened: Explain the failed payment or overdue amount in plain language.

• What it's for: Include the amount and subscription or invoice details.

• What to do next: Give one clear action, such as updating card details or paying an outstanding invoice.

• When to act: Include a deadline if one applies.

• Where to get help: Provide a way to contact your team.

Keeping dunning messages compliant with Singapore's PDPA

Singapore's Personal Data Protection Commission (PDPC) administers the Do Not Call Registry, which covers certain marketing messages sent to Singapore telephone numbers by calls, text messages or fax.

Keep payment reminders focused on resolving the payment issue rather than adding promotions or upsells. If you plan to send dunning messages by SMS or other channels, have your legal or compliance team check the applicable requirements first.

How to set up dunning management

Start by deciding how to handle common failures, when to contact customers and what happens if a payment still doesn't go through. Once these rules are in place, automation can take care of routine follow-ups.

Work through these steps to build your process:

1. List your payment methods. Include cards, GIRO, PayNow, bank transfers and any methods you use to collect payments from overseas customers.

2. Identify common failure reasons. Work out which problems may resolve with a retry and which require the customer to take action.

3. Set your retry schedule. Choose how often to retry payments and how long to keep trying for each billing cycle.

4. Prepare your payment reminders. Use the email examples above to explain what happened and how customers can resolve it.

5. Decide what happens after the final retry. Choose whether to pause or cancel the subscription, or leave it unpaid for your team to follow up.

6. Set rules for personal follow-up. Decide when your team should contact customers directly, such as for high-value accounts or unresolved payment issues.

7. Track your results. Monitor how many failed payments you recover and use the results to adjust your retry schedule and reminders.

How to tell if your dunning process is working

Tracking a few key metrics can help you see how much revenue you're recovering from failed payments and where your process could improve. Start by reviewing these numbers in your billing system each month:

Break these numbers down by payment method and failure reason to see where you're losing the most revenue. For example, if card payments recover well but GIRO deductions don't, you may need a different follow-up process for GIRO.

Compare your results month by month to see whether changes to retry timing or customer reminders are helping. Industry benchmarks can provide context, but use them carefully: businesses may define and calculate recovery metrics differently.

Why Singapore businesses use Airwallex for dunning management

If you want to simplify your dunning management, Airwallex is a great way to start. We build it right into our platform, so you don’t have to handle it separately or think about it.

Here’s what you get with Airwallex:

• Dunning inside your billing: Subscription Management retries failed charges on a schedule that follows your billing cycle and sends notices after each failed attempt, so you don’t need a separate dunning tool. 

• Cleaner billing cycles: Each recovery window ends at least one day before the next renewal, so retries for different invoices on the same subscription never overlap.

• One place for both kinds of dunning: Invoicing lets you set up automated reminders for overdue invoices, so subscription and invoice follow-up sit in the same platform.

Frequently asked questions (FAQs)

What does dunning mean in billing?

Dunning is the process of recovering failed or overdue payments through retries and reminders. The word comes from “dun”, an old verb meaning to ask repeatedly for money owed. Today, dunning management usually means automated retries and notices that help customers fix a payment problem.

How many times should you retry a failed payment?

There’s no single number that fits every business. Retry soft failures with gaps between attempts, and stop retrying hard failures until the customer updates their details. In our Subscription Management feature, plans of seven days or longer retry every two days, up to eight attempts over 14 days.

Does dunning management work for GIRO and PayNow payments, or only cards?

The idea is the same for every payment method, but the steps differ. Automatic retries only work for payments you can charge without the customer, such as a card on file. With GIRO, you decide whether to request another deduction. With PayNow, the customer sends each payment, so your follow-up is a reminder.

Do you need dunning management software?

Not always, but you need something that retries payments, sends notices, and tracks account status. Many billing platforms include these features, so check yours before buying a separate tool. Our Subscription Management feature includes dunning, so you can run it inside your billing platform.

Sources:

1. recurly.com/blog/failed-payment-recovery-data-based-strategy