I want to change the name from taxes to TVA
it's easy the do it in the report sale order but in the  invoice report i couldn't find taxes name for exemple : 

<td>Total</td> i change it to  <td>Total TTC </td>
but for the taxes i didnt find where

Hello  medmars, 

try this  : 

<span t-field="doc.taxes" t-field-options="{&quot;widget&quot;: &quot;False&quot;}"/>

for the Taxes, can you please specify little more ?

best regards.