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Convert legacy IIF files to Web Connect format for QuickBooks® Bank Feeds. 100% browser-based — your data never leaves your device.
Drop your IIF file here
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2 Formats
QBO + OFX
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How It Works
Drag & drop your legacy .iif file from any accounting system, ERP, or payroll export.
Set your target bank account name and choose between QBO or OFX output format.
Get your Web Connect file and import into QuickBooks® via File → Utilities → Import → Web Connect.
Compatibility
Our converter handles IIF exports from any legacy accounting system, ERP, payroll provider, or custom software.
QuickBooks® Desktop
IIF supported
Sage / Peachtree
IIF supported
Custom ERP
IIF supported
Payroll Systems
IIF supported
Legacy POS
IIF supported
Billing Platforms
IIF supported
Industry Software
IIF supported
Data Exports
IIF supported
Why PrimeConnect
The converter accountants and bookkeepers trust
Your financial data is processed entirely in your browser. Nothing is uploaded to any server — ever. No tracking, no storage, no compromise.
QBO + OFX formats
Average conversion under 5 seconds
No premium tiers or trial limits
Import via modern Bank Feeds workflow
Works on any device, any browser
4.9 out of 5 — trusted by accountants and bookkeepers
An IIF (Intuit Interchange Format) file is a tab-delimited data format used by QuickBooks® Desktop for importing and exporting transactions, account lists, and other company data.
Looking for a reliable IIF to QBO converter that's completely free? Our tool helps accountants and small business owners convert IIF to QBO quickly and accurately. Whether you need to import legacy QuickBooks® Desktop transactions into Bank Feeds or migrate data to QuickBooks® Online, our IIF to QBO converter makes it effortless.
Most tools only handle CSV or OFX, but our converter specifically targets the IIF to Web Connect workflow. You can convert IIF to QBO format in seconds, right in your browser. Need to inspect your source file first? Use our IIF Viewer & Validator to verify its contents before conversion. You can also perform an IIF to OFX conversion since QBO and OFX are the same underlying format.
Need to convert IIF to QBO without installing any software? Our browser-based solution handles the conversion locally on your device. Upload your IIF file, map the fields, and download a QuickBooks®-ready QBO file in seconds.
Need to go the other direction? Try our QBO to IIF Converter. Or if you're starting from a bank CSV, use our CSV to IIF Converter.
Since QBO is Intuit's branded version of the OFX standard, our tool effectively serves as an IIF to OFX converter as well. The output file works with any application that accepts Open Financial Exchange data, giving you maximum flexibility.
Explore all of our free tools on the Free Accounting Tools page.
The IIF to QBO Converter is part of our complete suite of free QuickBooks® conversion tools:
QuickBooks® is a registered trademark of Intuit Inc. This tool is not affiliated with, endorsed by, or sponsored by Intuit Inc. · Explore all free QuickBooks® utilities · Set up your Chart of Accounts · For troubleshooting, visit LedgerClinic.
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