Introducing Agentic Dunning: Automated Invoice Collections for Sales-Led Teams

Sales-led B2B SaaS teams know the collections problem. An invoice goes overdue, and the options both carry risk: ignore it and take the cash flow hit, or send a generic reminder with no context about who the customer is or how they typically pay. Most teams default to one extreme or the other. Radio silence until the Head of Finance notices, or blunt automated emails that treat every customer the same (and often too aggressively), regardless of payment history.

Turnstile has launched Agentic Dunning (an account-level collections system that adapts to each customer's prior payment behavior), a new capability that handles invoice follow-ups automatically, intelligently, and with the kind of nuance that used to require a human making judgment calls on every single overdue account.

Without account-level dunning, three separate invoices on the same account trigger three separate emails on three separate days. The customer's AP (Accounts Payable) team replies, asking which one to pay first. Your finance team spends an hour clarifying.

With Agentic Dunning: one digest, one payment link, one action required.

Turnstile's Agentic Dunning manages reminders at the account level, not the invoice level. Instead of firing a separate email for each unpaid invoice, the system evaluates the full customer relationship and sends one coordinated message that covers everything outstanding. Customers receive a clear, organized summary. Finance teams don't have to handle confused replies about why three separate emails arrived in the same week.

What Agentic Dunning Does

Agentic Dunning is an intelligent collections system that evaluates each customer's payment behavior and adjusts its approach accordingly. Instead of sending the same generic reminder on the same schedule, the system looks at how each customer has paid over the past 12 months, decides whether a reminder is necessary, and chooses the appropriate tone: from a friendly heads-up to a firm follow-up.

Overdue reminders go out once per week per customer. Pre-due and due-date reminders are sent on their applicable dates unless those dates fall on Monday, in which case they can be bundled with that week's overdue digest. The result is a shorter gap between invoice sent and payment received, without unnecessary reminder volume or duplicate outreach.

How It Decides What to Send (and When)

The system sends three types of reminders depending on where an invoice is in its lifecycle.

• Pre-Due Reminder: Sent 3 days before an invoice is due. A heads-up so customers can initiate payment before the deadline.
• Due-Date Reminder: Sent on the day the invoice is due. A clear, friendly prompt that payment is expected today.
• Overdue Reminder: Sent after the invoice becomes late, on a weekly cadence. More on this below.

When multiple invoices are outstanding, overdue reminders are bundled into a single digest. Pre-due and due-date reminders can also be included if their applicable date falls on Monday. If not, they are sent on the applicable date.

Not every customer receives every reminder type. The system evaluates payment history and decides what is appropriate. Reliable payers are not getting unnecessary emails, and consistently late accounts receive regular, timely, and appropriately toned follow-ups.

Overdue Reminders: Weekly, Not Daily

When an invoice goes overdue, reminders follow a weekly cadence. All overdue invoices for a given customer are batched and sent together once per week. This prevents excess noise while ensuring nothing falls through the cracks.

Reminders stop automatically after Day 180, regardless of payment status. Before that point, the system continues sending weekly follow-ups until the balance is fully settled. Partial payments (e.g., $500 payment on a $1,000 invoice) keep reminders active. They stop when the invoice is paid in full or Day 180 is reached.

Tone That Adapts to Payment History

Each customer is automatically placed into one of three account profiles, and that profile is constantly re-evaluated by the Agentic Dunning system based on actual payment history. Each profile drives a different tone, timing, and escalation level. A customer who consistently pays on time doesn’t receive the same cadence as one whose AP team routinely pays 30+ days late.

The system chooses from four tone levels (Gentle, Neutral, Direct, and Firm) based on the customer's profile and how far overdue open invoices are. Messages never include threats, legal language, or collections-style wording. Every reminder stays professional and relationship-safe.

What Customers See

Every reminder email includes the information needed to take action: invoice details (number, amount, due date), a single link to the page where the customer can review and pay outstanding invoices, and a total outstanding balance for digest emails with a clear breakdown of each invoice included. When multiple invoices are bundled, the most overdue items are listed first.

Full Transparency for Finance Teams

Turnstile gives complete visibility into every action the system takes. Teams can see whether automated charging of on file payment method is active, exactly which reminders were sent and when, the full content of each message sent, upcoming evaluation timing, and status indicators on both invoice and customer pages. This information surfaces across invoice detail pages, customer pages, and event history timelines. Finance leaders get a complete audit trail: every reminder sent, every balance outstanding, all visible at month-end close without a single spreadsheet export.

Setup Takes 5 Seconds

There is a single setting: Automated Invoice Collection: ON/OFF.

It lives in Invoice Settings, defaults to ON for new accounts, and is marked as recommended. Turning it OFF halts all automated reminders immediately while keeping historical logs visible. No configuration wizards, no escalation matrices to define. The system handles the complexity.

Eligibility: Agentic Dunning works with invoices your customers pay through Stripe.

Why Turnstile Built This

At deal sizes of $25K, $75K, or $150K+, DSO (days sales outstanding, the average time between invoice sent and payment received) can run well past 30 days, depending on payment terms and customer AP cycles. On a $75K invoice, every additional week of delay is real cash sitting outside the business. The difficulty is that the customers being followed up with are often the same customers with active relationships in play. Customer success teams want to focus on making the customer happy and identifying expansion opportunities; these efforts are hampered if they also have to play the role of the collections department. Founders shouldn't be in the collections loop at all.

Agentic Dunning fits into Turnstile's single system of record, from quote through revenue recognition, built on structured data. Because Turnstile stores contract values, billing schedules, and payment history as structured data in a single system of record, the dunning system knows who the customer is, what they owe, and how they typically pay before it sends a single message. That context isn't manually constructed from PDFs, imported from a spreadsheet, or pulled from a CRM. It's native to the platform. No separate integrations. No manual exports. No third-party collections tool to purchase, configure and maintain.

Agentic Dunning is available now for all Turnstile customers. New accounts have it enabled by default.

Book a demo and see how Turnstile automates invoice collections without compromising customer relationships.