While primarily known for converting bank files to CSV, many of these online suites offer the reverse (CSV to IIF) functionality as part of their free online trials.
Link: convertcsv.com/csv-to-iif.htm
Let’s assume you are using a standard online link (like ConvertCSV). Here is the workflow: csv to iif converter online link
Save as .iif and import.
Are you using QuickBooks Online (QBO) instead of QuickBooks Desktop? While primarily known for converting bank files to
If so, do not use an IIF converter. QuickBooks Online prefers the .qbo (Web Connect) format. Most of the links above also offer "CSV to QBO" converters, which is the correct format for the online version of the software.
Before we share the converter link, let’s quickly define the format. IIF (Intuit Interchange Format) is a proprietary text format used exclusively by QuickBooks Desktop (Pro, Premier, Enterprise). Unlike the modern QBO format (used by QuickBooks Online), IIF allows you to import: Link: convertcsv
Most banks and accounting systems export data as CSV (Comma Separated Values). Because QuickBooks Desktop does not natively import CSV for transactions, you need a converter.
Link: www.accountingwholesale.com/iif-converter/