[ADD] accounting: How to set default taxes

accounting/others/taxes/default_taxes.rst

@@ -0,0 +1,30 @@
+========================
+How to set default taxes
+========================
+
+Taxes applied in your country are installed automatically for most localizations.
+
+Default taxes set in orders and invoices come from each product's Invoicing tab.
+Such taxes are used when you sell to companies that are in the same country/state than you.
+
+.. image:: media/application05.png
+   :align: center
+
+To change the default taxes set for any new product created go to
+:menuselection:`Invoicing/Accounting --> Configuration --> Settings`.
+
+.. image:: media/create04.png
+   :align: center
+
+.. tip::
+    If you work in a multi-companies environment, the sales and 
+    purchase taxes may have a different value according to the 
+    company you work for. You can login into two different companies 
+    and change this field for each company.
+
+.. seealso::
+
+  * :doc:`create`
+  * :doc:`application`
+  * :doc:`B2B_B2C`
+  * :doc:`tax_included`