diff --git a/addons/l10n_fr_hr_payroll/l10n_fr_hr_payroll_data.xml b/addons/l10n_fr_hr_payroll/l10n_fr_hr_payroll_data.xml
index 659af12905e..e7a0e44d21e 100755
--- a/addons/l10n_fr_hr_payroll/l10n_fr_hr_payroll_data.xml
+++ b/addons/l10n_fr_hr_payroll/l10n_fr_hr_payroll_data.xml
@@ -1186,7 +1186,7 @@
         <field name="condition_select">none</field>
         <field name="amount_select">percentage</field>
         <field name="amount_percentage">5.1</field>
-        <field name="amount_percentage_base">(categories.BRUT + categories.PREV)*0.97</field>
+        <field name="amount_percentage_base">(categories.BRUT + categories.PREV)*0.9825</field>
         <field name="appears_on_payslip" eval="True"/>
         <field name="register_id" ref="hr_urssaf_register"/>
     </record>
@@ -1199,7 +1199,7 @@
         <field name="condition_select">none</field>
         <field name="amount_select">percentage</field>
         <field name="amount_percentage">2.4</field>
-        <field name="amount_percentage_base">(categories.BRUT + categories.PREV)*0.97</field>
+        <field name="amount_percentage_base">(categories.BRUT + categories.PREV)*0.9825</field>
         <field name="appears_on_payslip" eval="True"/>
         <field name="register_id" ref="hr_urssaf_register"/>
     </record>
@@ -1213,7 +1213,7 @@
         <field name="condition_select">none</field>
         <field name="amount_select">percentage</field>
         <field name="amount_percentage">0.5</field>
-        <field name="amount_percentage_base">(categories.BRUT + categories.PREV)*0.97</field>
+        <field name="amount_percentage_base">(categories.BRUT + categories.PREV)*0.9825</field>
         <field name="appears_on_payslip" eval="True"/>
         <field name="register_id" ref="hr_urssaf_register"/>
     </record>