Payment Due Date difference in Days for Invoice, Bill, Credit Note, Receipt, Refund
by OMAX Informatics https://www.omaxinformatics.com
Odoo
$ 44.86
Availability |
Odoo Online
Odoo.sh
On Premise
|
Odoo Apps Dependencies |
•
Invoicing (account)
• Discuss (mail) |
Lines of code | 363 |
Technical Name |
payment_due_date_diff_omax |
License | OPL-1 |
Website | https://www.omaxinformatics.com |
Versions | 13.0 14.0 15.0 16.0 17.0 18.0 |
Payment Due Date difference in Days for Invoice, Bill, Credit Note, Receipt, Refund

OMAX INFORMATICS
Overview
The Payment Due Date Difference module helps analyze the number of days between the invoice/bill payment date and its due date. With this module, Accountants can view the Due Date - Payment Date Difference In Days directly inside Invoices, Bills, Credit Notes, Debit notes, Sale Receipts and Purchase Receipts. Additionally, a reporting wizard makes it easy to generate Excel reports with filtering.
Key Features
- Track the difference in days between Payment Date and Due Date.
- Due Date - Payment Date Difference In Days tab available in:
- Invoices & Bills
- Credit Notes & Debit Notes
- Sales Receipts & Purchase Receipts
- Whenever a payment is registered, an entry is automatically added to the document’s Due Date - Payment Date Difference In Days tab, capturing the difference (Due Date − Payment Date).
- Excel Report for detailed payment analysis with filters: Start/End Date, Move Type, Company, Customers/Vendors, Invoices/Bills.
- Seamless integration with Odoo Accounting flows. Save accountant time with automated difference calculations
How It Works
Let's execute the flow.
Case 1: Sigle Due Date for the the invoice and No Payment Terms assigned.


PAID
and Amount due
is 0.00 as per default Odoo.

Due Date - Payment Date Difference In Days
When a payment is registered, the system automatically adds a new line inDue Date - Payment Date Difference In Days
tab.It displays the Payment Date, Due Date, Paid Amount, and Difference in Days — all in read-only mode.
The difference is calculated as:
Due Date − Payment Date = Difference in Days
For example, this invoice shows a 38-day payment delay.

Case 2: Multiple Due Dates & Multiple Payments for an Invoice
- Customer Invoice: INV/2025/00001
- Total Amount: $1,000.00
- Payment Terms: 30% Now, Balance 60 days
- Installment 1: $300.00 due on 06/01/2025
- Installment 2: $700.00 due on 07/31/2025

- Date: 06/15/2025
- Amount: $360.00
- 1st Installment ($300.00 due on 06/01/2025): From the total paid amount ($360.00), $300.00 is allocated to this installment. The remaining $60.00 is carried forward to the 2nd installment.
-
2nd Installment ($700.00 due on 07/31/2025):
The remaining $60.00 is treated as an advance payment.
Difference in Days: -46 days (early payment), since payment was received on 06/15/2025 while due date is 07/31/2025.
Difference in Days: 14 days delay (06/01/2025 → 06/15/2025).

- Date: 08/13/2025
- Amount: $640.00 Difference in Days: 13 days delay (07/31/2025 → 08/13/2025).

Excel Report : Due Date Vs Payment Date Differece in Days
Invoicing > Reporting > Due Date Vs Payment Date Differece in Days
Report Wizard Explanation

Filters Description
- Start Date and End Date:
Mandatory fields. The report fetches all invoices/bills within the selected time period. - Move Type:
Mandatory selection field. Options: Customer Invoice, Vendor Bill, Customer Credit Note, Vendor Credit Note, Sales Receipt, Purchase Receipt. - Company:
Multiple company selection available. User’s default company is auto-selected, and all allowed companies are shown. Optional field. - Customer/Vendor:
Optional field. Supports multiple selections for the chosen Move Type. - Invoice/Bill:
Optional field. Supports multiple selections. Available moves are filtered based on Move Type and Customer/Vendor inputs.
Export Option
- Export All button generates the Excel report.
- Data is grouped by Customer and Move Type.
- For multi-company environments, each company’s data is exported on a separate sheet.




Similarly It also works for
- Vendor Bill
- Customer Credit Note
- Vendor Refunds
- Sales Receipts
- Purchase Receipts
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