Been searching for something like this for months. Our Shopify store processes 500+ orders monthly and this handles everything perfectly. Date formats, tax columns, refunds - all correct.
Square to QuickBooks Desktop (IIF Format)
or drop files here
CSV, XLS, XLSX
or
Invoice import blocked if Sales Tax enabled in QBO
Convert Complete
QuickBooks Desktop IIF Format
Ready for download
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+ more rows
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Credits Calculation:
rows → rows (rounded to 1K) → credits
then credit per 1K rows
credits for all formats
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What Our Users Say
works good, wish it had batch mode
I was spending 4-5 hours every month reformatting exports manually. This tool paid for itself in the first use. The preview feature helped me verify the mapping before paying.
exactly what i needed thx!!
Super straightforward. Upload, convert, download. No account needed which is nice. Would give 5 stars if they add Xero support.
saved me hours of work
My accountant was so happy when I sent her the converted file. No more back-and-forth about date formats or missing columns. Everything imported correctly on first try.
fast and easy 10/10 would recommend
Been using this for 6 months for monthly reconciliations. Handles all the edge cases - partial refunds, multi-line orders, currency conversions. Very reliable tool.
Good tool, does what it says. Interface could be bit better but conversion quality is excellent. Using it for my 3 Shopify stores.
Switched from A2X to this. Way simpler for my needs - I don't need real-time sync, just clean data once a month. This delivers exactly that.
finally!! something that works with QB desktop!!
Ready to convert your own data?
Convert Square POS transactions to IIF format for QuickBooks Pro, Premier, and Enterprise Desktop editions.
No API required
Browser-based processing
Run on Google Cloud Platform
How It Works
1
Export from Square
Dashboard → Reports → Transactions → Export CSV
2
Upload and Configure
Upload CSV and verify account names match your Chart of Accounts
3
Download IIF
Download the converted .iif file
4
Import to Desktop
In QuickBooks Desktop: File → Utilities → Import → IIF Files
Your Data is Safe
Bank-Level Security
256-bit SSL encryption. Same standards as major financial institutions.
No Data Storage
Files under 50MB process in your browser. Your data never touches our servers.
Auto-Delete
Server-processed files automatically deleted within 24 hours.
GDPR Compliant
Full EU data protection compliance. Your privacy rights protected.
Field Mapping
How Square Transactions fields map to Quickbooks Desktop Iif
| Square Transactions | Source Value | Quickbooks Desktop Iif | Target Value | Note | |
|---|---|---|---|---|---|
Transaction ID |
abc123xyz |
→ | DOCNUM |
abc123xyz
|
Transaction ID as document number |
Date |
12/15/2024 |
→ | DATE |
12/15/2024
|
Transaction date MM/DD/YYYY |
Customer Name |
John Smith |
→ | NAME |
John Smith
|
Customer name (max 41 chars) |
Total Collected |
120.00 |
→ | AMOUNT |
120.00
|
Transaction amount (TRNS) |
Gross Sales |
107.50 |
→ | AMOUNT (SPL) |
|
Product sales to income account |
Tax |
7.50 |
→ | AMOUNT (SPL) |
|
Tax to Sales Tax Payable |
Tip |
10.00 |
→ | AMOUNT (SPL) |
|
Tips to Tips Income |
Fees |
-3.22 |
→ | AMOUNT (SPL) |
|
Fees as expense (ABS of negative) |
Data Transformation
Each Square transaction expands to IIF TRNS/SPL rows
Input
Square Transaction
One row per payment transaction
Key columns:
Transaction ID,
Date,
Total Collected,
Fees
1:N — One input row creates multiple output rows
Output
IIF Transaction Block
3-6 rows per input
TRNS header + SPL splits + ENDTRNS
HDR
TRNS
Transaction header: debit to deposit account
CR
SPL (Sales)
Split: credit to Sales Income (negative)
CR
SPL (Tax)
Split: credit to Sales Tax Payable
CR
SPL (Tips)
Split: credit to Tips Income
DR
SPL (Fees)
Split: debit to Fees Expense (positive)
ENDTRNS
End of transaction marker
TRNS amount = sum of SPL amounts
The Desktop Gap
No Native Square-Desktop Integration
Square doesn't offer a direct QuickBooks Desktop integration.
Most accounting apps (A2X, Synder) only support QuickBooks Online.
Desktop users are left with manual data entry or expensive middleware.
IIF: The Desktop Import Format
QuickBooks Desktop accepts IIF (Intuit Interchange Format) files.
IIF is a tab-delimited format with specific headers (TRNS, SPL, ENDTRNS).
We convert your Square transactions to valid IIF files that Desktop accepts.
Common IIF File Import Errors
Issues you might encounter when importing Transactions Export data to IIF File - and how we solve them
Account Not Found in Chart
QuickBooks Desktop requires exact account name matches
Account: 'Square Sales' (not in your Chart)
Account: 'Sales Income' (matches your Chart)
Configure account names to match your QuickBooks Desktop setup
Check File → Chart of Accounts and update settings
Square Uses Negative Fees
Square exports fees as negative (e.g., -$3.22)
Fees: -$3.22
Fees SPL: $3.22 (positive expense)
Fees are converted to positive for expense tracking
Automatic conversion using ABS()
Customer Name Too Long
QuickBooks Desktop limits names to 41 characters
Long Customer Name With Extra Details...
Long Customer Name With Extra...
Customer names are truncated to 41 characters
Names are automatically shortened
Why Use This Tool?
Desktop-Ready IIF
Valid IIF format that QuickBooks Desktop accepts without errors.
Cash Sale Transactions
Transactions imported as Cash Sales with proper split lines.
Tax & Tips Separation
Separate split lines for tips and sales tax.
Customer Name Handling
Customer names truncated to Desktop's 41-character limit.
ASCII Encoding
Proper ASCII encoding required by QuickBooks Desktop.
No Monthly Fee
Pay-per-use pricing. No subscription required.
Frequently Asked Questions
Pro, Premier, and Enterprise editions from 2020 to 2025. IIF format is supported in all Desktop versions.
Yes. QuickBooks Desktop requires admin login and single-user mode for IIF imports.
All accounts in the IIF must exist in your Chart of Accounts before import. Create: deposit account, sales income, tips income, and sales tax payable.
QuickBooks Desktop limits customer names to 41 characters (vs 100 in Online). Names are automatically shortened to fit.
Yes, but be careful of duplicates. Each transaction gets a unique reference number (SQ-xxx) to help identify duplicates.
Check that all account names exist in your Chart of Accounts. Account names must match exactly. QuickBooks Desktop is case-sensitive.
Square → Quickbooks Desktop Data Ecosystem
All available data flows from Square to Quickbooks Desktop
Square
Customer Directory Export
Square customer records with contact information and purchase history
→
Quickbooks Online
Customer Import
Customer profiles with contact and billing information
First Name + Last Name → Name
Company Name → Company
Email Address → Email
Square
Item Library Export
Square product catalog with pricing, SKUs, and inventory levels
→
Quickbooks Online
Products and Services Import
Product and service items for invoicing and sales
Item Name + Variation → Product/Service Name
SKU → SKU
Description → Sales Description
Square
Transactions Export
Square transactions including payments, refunds, fees, and payouts
→
Quickbooks Desktop
IIF File
Tab-delimited Intuit Interchange Format for Desktop
Transaction ID → DOCNUM
Date → DATE
Customer Name → NAME
Square
Transactions Export
Square transactions including payments, refunds, fees, and payouts
→
Quickbooks Online
Journal Entry
Double-entry accounting with debits/credits
Date → JournalDate
Gross Sales → Credits
Fees → Debits
Square
Transactions Export
Square transactions including payments, refunds, fees, and payouts
→
Quickbooks Online
Sales Receipt
Cash-basis B2C sales (payment received at checkout)
Transaction ID → RefNumber
Date → TxnDate
Total Collected → ItemAmount