Zions Bank positive pay file format
There is no single fixed layout. You define your own file map in Zions' treasury portal.
Independent documentation. Not affiliated with or endorsed by Zions Bank.
Build a matching file with the free generator: pick a generic layout or use the custom builder, then map it once in Zions' treasury portal. Your check data never leaves your computer.
How Zions Bank check issue files work
- Issue files can be saved as .CSV or .TXT from your accounting software.
- You create an "import file definition" in the portal that describes your layout, and test it before first use.
- A single batch may contain both issued and voided items.
Required data: account number, check number, amount, issue date, and issue or void status.
Source: Zions Bank quick reference guide ECPPP615 (Rev. 07/2025). Reference. Banks can change their requirements; the bank portal is the authoritative reference.
How to create a Zions Bank positive pay file
Because Zions Bank reads whatever layout you register in its portal, the simplest approach is a clean CSV. In the generator, choose the generic CSV layout (or build your own in the custom builder), create the file from your check register, then define the matching file map in Zions' treasury portal once. After that, every check run is the same two steps: generate the file, upload it. Always verify your first file with a test upload.