ITA - Inversione contabile

This module adds Italian reverse charge (inversione contabile) handling to vendor bills. You configure reverse charge types under Accounting, in the Reverse Charge Types menu, where you choose the method (VAT Integration or Self Invoice), the partner to use on self-invoices, the journals, a transitory account and the tax mappings from purchase tax to sale tax.

On a fiscal position you can select an RC Type. When a vendor bill uses that fiscal position, its product lines are flagged as RC and, on posting, Odoo automatically generates the corresponding self-invoice (a customer invoice or credit note) with the mapped taxes and posts it. If the type is configured with an additional supplier self-invoice, Odoo also creates a supplier self-invoice addressed to your company, typically for extra-EU suppliers.

Odoo then creates and posts a reverse charge payment entry and reconciles it with both the self-invoice and the original vendor bill. Cancelling or resetting a bill to draft automatically removes the related payment and self-invoice entries. Tax mappings are mandatory: posting fails if a tax on an RC line has no mapping, and the Original Purchase Tax is required when the additional supplier self-invoice option is enabled. The module touches account.move, account.move.line, account.fiscal.position, account.rc.type and account.rc.type.tax, and is multi-company aware.