******
Design
******

The *Account Tax Non-Deductible Module* extends the following concepts:

.. _model-account.tax:

Tax
===

When the *Account Tax Non-Deductible Module* is activated, the taxes can be
defined as non-deductible to always include the amount as expense on customer
`Invoice <account_invoice:model-account.invoice>`.

.. seealso::

   The `Tax <account:model-account.tax>` concept is introduced by the
   :doc:`Account Module <account:index>`.
