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Dunning software automates the process of chasing overdue invoices. It sends reminders on a schedule, applies late fees and interest, escalates unpaid accounts, and tracks every interaction — so your team stops spending hours on manual follow-ups. Paidnice is dunning software built specifically for Xero and QuickBooks Online.

Dunning is the structured process a business uses to collect overdue payments. A typical dunning process includes a pre-due courtesy reminder, a series of post-due reminders at set intervals (e.g. 7, 14, 30 days), application of late fees or interest, escalation to a phone call or formal notice, and finally a hand-off to collections if unpaid. Paidnice lets you configure each of these steps once and runs them automatically.

"Dunning" comes from the old English verb "to dun" — to persistently demand payment of a debt. In modern accounts receivable, it refers to the systematic communication sent to customers with overdue invoices. Unlike ad-hoc chasing, dunning is a repeatable, documented process — which is what makes it a good fit for automation.

Dunning is used to reduce overdue AR, shorten DSO (Days Sales Outstanding), and recover cash that would otherwise be written off. For SMBs, a good dunning process replaces inconsistent manual follow-ups with a predictable system — meaning fewer invoices slip through the cracks and cash flow becomes more reliable.

Dunning fees are charges added to an overdue invoice to compensate for the cost of collection and incentivise on-time payment. They can be flat late fees, percentage-based fees, or compounding interest. Paidnice lets you configure dunning fees per customer or per invoice and applies them automatically on the day they're due.

Yes. Paidnice is built natively on top of Xero and QuickBooks Online. Invoices, customers, and payments sync both ways, so your dunning activity stays in lockstep with your accounting system with no double entry.

The core dunning KPIs are Days Sales Outstanding (DSO), Collection Effectiveness Index (CEI), Average Days Delinquent (ADD), and AR Turnover Ratio. Paidnice reports on all four so you can see whether your dunning process is actually improving cash flow.

Of course, watch a quick demo here where we run through how Paidnice works, and some of the unique setups you can run with it. We encourage you to watch the video, as that will likely answer most of your questions. If you still have questions after watching the video, book a demo here.