This module allows to select a custom taxes rounding method in sale orders.
auto_awesome What this module does
AI-generated from the code · Odoo 18.0Lets you choose a specific tax rounding method on each sale order, overriding the company default, and carries that choice through to the generated invoice.
This module adds a new field on the sale order form, next to the sales information block, where you can pick how taxes are rounded for that order: "Round per Line" or "Round Globally". If you leave it empty, the method configured on the company is used.
When you change the customer or the invoice address on a quotation or order, the rounding method is automatically filled in from the customer's own configured rounding preference, if any.
The chosen method is used when Odoo computes the taxes of the order lines, so the tax amounts shown on the order follow your selection. When the order is turned into an invoice, the same rounding method is copied onto the invoice, so the invoice totals match what was agreed on the order.
The field can only be edited while the order is in draft or sent state; once it is confirmed it becomes read-only. The rounding method is also taken into account when grouping order lines into invoice lines, so lines with different rounding methods are not merged into the same invoice line.
It touches the sale order, its lines, the tax computation and the invoice preparation, and depends on the invoice custom rounding module.
Depends on
Models and fields (3)
- sale.order · extends an existing modeltax_calculation_rounding_method_override
- account.tax · extends an existing model
- sale.order.line · extends an existing model
Text generated by AI (DeepSeek) from reading the Odoo 18.0 code on GitHub; it may contain mistakes, so check the code before deciding. View the code on GitHub
Availability by version
Reviewed: 2026-11-03Confirmation status: 2 confirmed, 7 with no information of 9 versions.
Sources · Odoo 18.0
Confirmed on 2026-11-03 in branch 18.0 of OCA/sale-workflow.
terminal Installation and usage
OCA documentation · Odoo 18.0Configuration
Source · Odoo 18.0To configure this module, you need to:
- Go to a contact and select an option in the field "Tax Calculation Rounding Method". This option will be selected by default in sale orders in which this contact is set as the invoice address.
- In the simplified view of a child contact, the "Tax Calculation Rounding Method" field is only visible if the child contact is an "Invoice Address".
- If no option is selected in a sale order, the rounding method set in the company configuration will be applied.
- If a contact has child contacts, these child contacts will not inherit the parent contact's rounding method.
Usage
Source · Odoo 18.0To use this module, you need to:
- Go to the "Other Information" tab in a sale order to select the rounding method in the "Tax Calculation Rounding Method" field. If no option is selected, the rounding method set in the company configuration will be applied.
- If the customer has a value in its "Tax Calculation Rounding Method" field, it will be set in the sale order when this contact is selected as the invoice address. This option can be changed in the sale order.
- When multiple sale orders are selected to be invoiced together, the "Tax Calculation Rounding Method" is used as a grouping field (i.e. if four sale orders are selected, two of them have the "per line" rounding method and the other two have the "global rounding" method, two invoices will be generated).
No verified information in OCA: Installation.
Installation instructions, the distribution package, dependencies and configuration steps are not shown because they have not yet been verified in the module documentation for any version.
Data imported from GitHub: this sheet reflects the latest catalog review, not a live lookup. Always check the module documentation and staging before installing in production.