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IIF to NACHA Converter

Upload your IIF file and download clean NACHA. Fast conversion, no manual copy-paste.

.iif.ach

Free · no sign-up · downloads automatically.

How to convert IIF to NACHA

  1. 1

    Upload your IIF file

    Drag and drop your .iif file, or click to browse.

  2. 2

    Convert it

    Statemently reads the file and creates a clean NACHA output.

  3. 3

    Download your NACHA file

    Your NACHA (.ach) file downloads automatically, ready to import.

Why convert IIF to NACHA?

Use this when you have a file in one format and need a clean NACHA file without rebuilding it by hand.

  • Upload your IIF file and download NACHA
  • Avoid manual copy-paste and formatting cleanup
  • Works with real-world exports that do not follow a perfect template

Example: before and after

A sample IIF file and the exact NACHA this tool produces from it.

Input · .iif

!TRNS	TRNSTYPE	DATE	ACCNT	NAME	AMOUNT
!SPL	TRNSTYPE	DATE	ACCNT	NAME	AMOUNT
!ENDTRNS
TRNS	DEPOSIT	06/02/2026	Checking	Direct Deposit ACME Payroll	4200.00
SPL	DEPOSIT	06/02/2026	Income		-4200.00
ENDTRNS

Output · .ach

DateDescriptionAmount
2026-06-02Direct Deposit ACME Payroll4200

Tips

  • Files up to 8 MB are supported. Very large files may be summarized before AI conversion.

Frequently asked questions

Is the IIF to NACHA converter free?

Yes — it's completely free, with no sign-up required.

What is a IIF file?

IIF (Intuit Interchange Format) is a tab-delimited format for importing lists and transactions into QuickBooks Desktop.

What can I do with the NACHA file?

NACHA is the fixed-width ACH file format used for US bank payment files.

Is my financial data private?

Your file is processed only for the conversion, never sold, and not stored by this converter after the conversion runs.

Is there a file size limit?

Files up to 8 MB are supported, which covers even multi-year exports.

Other IIF conversions

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