Convert QFX Files
to IIF Format
Migrate Quicken QFX transaction data directly to QuickBooks Desktop IIF format. Double-entry bookkeeping with TRNS/SPL structure — ready for import.
export.qfx
Quicken Financial Exchange
transactions.iif
Intuit Interchange Format
TRNS / SPL
Double-entry ready
Drop your QFX file here
or click to browse • Accepts .qfx files from Quicken
Max file size: 10MB • All processing happens in your browser
Output format: IIF (Intuit Interchange Format) uses double-entry bookkeeping with TRNS/SPL/ENDTRNS blocks. Import into QuickBooks Desktop via File → Utilities → Import → IIF Files.
FAQ
QFX to IIF
Questions
Everything you need to know about converting Quicken files to QuickBooks Desktop IIF format.
Contact SupportIt converts Quicken QFX (Quicken Financial Exchange) files into IIF (Intuit Interchange Format) for QuickBooks Desktop. The IIF output uses double-entry bookkeeping with TRNS/SPL/ENDTRNS blocks, mapping each transaction to a bank account and offset account.
The Best Free QFX to IIF Converter for QuickBooks Desktop
Migrating from Quicken to QuickBooks Desktop? Our free QFX to IIF converter transforms Quicken QFX financial exchange files into IIF (Intuit Interchange Format) with proper double-entry bookkeeping. Each transaction is mapped to a bank account (TRNS) and offset account (SPL), ready for direct import into QuickBooks Desktop.
For QuickBooks Online or Desktop Web Connect import, use our QFX to QBO Converter. For spreadsheet analysis, try our QFX to CSV Converter.
Understanding IIF Format
IIF (Intuit Interchange Format) is a tab-separated file format designed specifically for QuickBooks Desktop. Each transaction consists of three parts:
- TRNS: The primary entry (bank account, amount)
- SPL: The offsetting entry (expense/income account, negated amount)
- ENDTRNS: End-of-transaction marker
This double-entry structure ensures every debit has a corresponding credit, maintaining balanced books after import.
Import IIF into QuickBooks Desktop
- Open QuickBooks Desktop (Pro, Premier, or Enterprise)
- Go to File → Utilities → Import → IIF Files
- Browse to your downloaded .iif file
- Click Open to start the import
- Review imported transactions in the bank register
Important: The account names in the IIF file must match existing accounts in your QuickBooks chart of accounts. If they don't exist, QuickBooks will create them automatically.
Why Choose Our Free QFX to IIF Converter?
- 100% Free — no hidden fees or premium tiers
- Browser-based — no software to install
- Secure — data never leaves your device
- Proper double-entry TRNS/SPL structure
- Configurable account names
- Preserves all transaction data
- Handles all OFX transaction types
- Ready for QuickBooks Desktop import
Related Conversion Tools
QuickBooks® is a registered trademark of Intuit Inc. Quicken® is a registered trademark of Quicken Inc. This tool is not affiliated with, endorsed by, or sponsored by Intuit Inc. or Quicken Inc. · Explore all free accounting tools.
Visual workflow
How QFX to IIF Converter works
Convert Quicken QFX files to QuickBooks® Desktop IIF format with double-entry bookkeeping.
- Step 1
QFX source
Add the original QFX export in your browser.
- Step 2
Map + validate
Review detected fields and conversion settings before export.
- Step 3
IIF output
Preview and download the IIF-ready result.
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