---
title: "Duplicate payment"
description: "Duplicate payment — The same obligation paid twice — typically one invoice entered twice, or paid once by check and again by ACH. Found by matching vendor, invoice number and amount, and recovered by a vendor credit or a refund, not by editing the payment."
canonical: "https://lopifi.com/glossary/duplicate-payment"
---

# Duplicate payment

> Duplicate payment — The same obligation paid twice — typically one invoice entered twice, or paid once by check and again by ACH. Found by matching vendor, invoice number and amount, and recovered by a vendor credit or a refund, not by editing the payment.

Source: https://lopifi.com/glossary/duplicate-payment
Part of: Lopifi — Planned: US GAAP books on autopilot, checked by a CPA (https://lopifi.com)

---

**What is duplicate payment?** In accounting, duplicate payment means the same obligation paid twice — typically one invoice entered twice, or paid once by check and again by ACH. Found by matching vendor, invoice number and amount, and recovered by a vendor credit or a refund, not by editing the payment.

## Words this system refuses for it

- overpayment (an excess of any cause)
- duplicate bill (the second entry, before it is paid)

- **Category:** Payables
- **Specified in:** [Lexicon](https://lopifi.com/md/docs/domain/lexicon)
- **Rendered by:** [duplicate-bill-alert](https://lopifi.com/md/components/duplicate-bill-alert)
- **Related:** vendor-credit, invoice, credit, refund, vendor