Product - Cost Price Tax Included

This module is useful when your sale taxes are configured with prices including tax (B2C style). It adds a new read-only field called "Cost Price Tax Included" on both product.product and product.template. The value is calculated automatically from the product's normal Cost Price and its sale taxes, so you always see the cost with tax included.

It also extends the pricelist rules (product.pricelist.item) with a new option in the "Based on" list: "Cost Price Tax Included". This lets you create a sale pricelist whose formula is based on the tax-included cost instead of the standard cost.

• A new computed field "Cost Price Tax Included" appears on product forms and product variants.
• On product templates with several variants, the field is only filled when there is a single variant; otherwise it shows zero.
• The new pricelist base option is available when configuring pricelist items.
• The value recalculates automatically when the cost price, the sale taxes, or the tax-included setting changes, and per company.

No new menus or reports are added. The module touches product pricing, product variants, sale taxes and pricelists. Demo data shows a 20% sale tax with prices including tax and a pricelist based on the tax-included cost.