---
title: "Payment File Format (lockbox)"
slug: "payment-file-format-lockbox"
updated: 2026-08-10T20:22:52Z
published: 2026-08-10T20:22:52Z
canonical: "help.idibilling.com/payment-file-format-lockbox"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.idibilling.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Payment File Format (lockbox)

Before payments can be loaded from a file, the file data must be in a specific format. The format is comma delimited, with no header or trailer records. Each record must have 8 fields (7 commas). The fields are in the following order:

- customer account number - alphanumeric
- payment amount - currency
- payment type code - numeric (as set up in Data Management)
- payment date - mm/dd/yyyy
- description (not required) - alphanumeric
- apply to invoice number - numeric (if applicable)
- check number - numeric (if applicable)
- batch ID - numeric (not required)

This is an example of a payment file. If your company has purchased OnlineBill, another choice is Authorize.net Batch Download.

![SamplePaymentFile](https://cdn.us.document360.io/3f7f8ade-bcb1-4ec8-af25-0c0ad8601afb/Images/Documentation/69521.png?sv=2026-02-06&spr=https&st=2026-11-14T11%3A11%3A37Z&se=2026-11-14T12%3A11%3A37Z&sr=c&sp=r&sig=r0EUQ6z%2BEEGdE0Nd4UgkQQB%2B4G70ZZzo15rYhOOlQlc%3D)