Allow to enter a tare weight when weighing products in the Point of Sale. This will compute the net weight automatically and set it on the currently selected order line.
The net weight is displayed in the order with the tare value below it.
This information is also displayed on the receipt.
auto_awesome What this module does
AI-generated from the code · Odoo 16.0Lets cashiers weigh products in the Point of Sale while subtracting a tare (container/packaging) weight, so the customer is charged only for the net weight. The tare can be typed, scanned with a barcode, or pre-set on the product.
This module adds tare handling to the Point of Sale for products sold by weight.
- On a product, a new "tare weight" field appears next to the "To Weigh" option, so a constant tare (e.g. packaging) can be stored and automatically subtracted when the product is weighed.
- In the Point of Sale configuration, three new settings are added: the tare input method (manual, barcode, or both), the gross weight input method (manual or scale), and the unit of measure used for tares (default kilogram).
- In the POS scale screen, a Gross Weight and a Tare field are shown; the net weight is computed automatically. A "Tare" button is added to the numpad so the cashier can enter a tare value directly on the selected order line.
- A new barcode rule type "Tare" is provided, allowing a barcode to set the tare on the selected line.
- The order line now stores the tare, and the POS order form shows the tare next to the quantity. The receipt prints the gross weight and the tare when a tare is used.
- If the tare unit and the product unit are not compatible, an error message is shown instead of a wrong weight.
Depends on
Models and fields (5)
- pos.config · extends an existing modeliface_tare_method (Tare Input Method), iface_tare_uom_id (Unit of Measure of the tare), iface_gross_weight_method (Gross Weight Input Method)
- barcode.rule · extends an existing modeltype
- pos.order.line · extends an existing modeltare
- product.template · extends an existing modeltare_weight
- res.config.settings · extends an existing modelpos_iface_tare_method, pos_iface_tare_uom_id, pos_iface_gross_weight_method
Text generated by AI (DeepSeek) from reading the Odoo 16.0 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 16.0
Confirmed on 2026-11-03 in branch 16.0 of OCA/pos.
terminal Installation and usage
OCA documentation · Odoo 16.0Usage
Source · Odoo 16.0Install this module and configure the point of sale. To enable this addon, go to the point of sale configuration page. There, enable the electronic scale and barcode reader in the "IoT Box" section. In the same page, look for the "Tare Input Method" field, and choose a tare method. There are three tare methods:
- "Manual": allows to enter the tare value when a product is weighed
- "Barcode": allows to scan a barcode containing the tare value
- "Both": allows both of the above methods
To handle tare barcodes you need to use the default barcode nomenclature. The default tare barcode rule is an EAN-13 barcode of the form 0700000{NNDDD} (where N will encode the kilograms units and D the decimals). Using that pattern, the barcode for a tare of 1.234 kg is 0700000012347 (the last digit is the EAN-13 check digit). This barcode rule can be modified if needed, and other ones added.
The pos_self_service_weighing_tare module allows to weigh containers and create tare barcode labels from a PoS configured as a self-service weighing station.
You can define a default tare on the product form view, if you always use the same type of packaging (or container) for a given product.
If a product with a different UoM category than the one used for the tare is set to be weighed with a scale, an error message will appear when a tare is set, as the weight cannot be computed.
No verified information in OCA: Installation, Configuration.
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.