diff --git a/.idea/sqldialects.xml b/.idea/sqldialects.xml
new file mode 100644
index 0000000..3fadc3d
--- /dev/null
+++ b/.idea/sqldialects.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="SqlDialectMappings">
+    <file url="file://$PROJECT_DIR$/sirh.sql" dialect="GenericSQL" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/doc/functional-rules.md b/doc/functional-rules.md
index b0b191d..ead88f8 100644
--- a/doc/functional-rules.md
+++ b/doc/functional-rules.md
@@ -344,7 +344,24 @@ Tous les filtres checkbox sont cochés par défaut à l'ouverture du drawer.
 | CHAUFFEUR - samedi | WorkHour (samedi) | Samedis travaillés (chauffeurs uniquement) |
 | Observations | — | Colonne vide pour saisie manuelle |
 
-## 12) Notifications
+## 12) Frais
+
+- Onglet "Frais" sur la fiche employé (icône `mdi:account-cash-outline`)
+- Entité `MileageAllowance` (table `mileage_allowances`)
+- Champs:
+  - `month` (mois, obligatoire)
+  - `kilometers` (nombre de km, optionnel)
+  - `amount` (montant en €, optionnel)
+  - `comment` (commentaire, optionnel)
+  - `receiptPath` / `receiptName` (justificatif PDF)
+- Règle de validation:
+  - le mois est obligatoire
+  - au moins un des deux champs `kilometers` ou `amount` doit être > 0
+  - les deux peuvent être remplis simultanément
+- Tableau: colonnes Mois, Nombre de Km, Montant €, Commentaire, Justificatif
+- Justificatif: upload PDF uniquement, téléchargement via endpoint dédié
+
+## 13) Notifications
 
 - Icône cloche en topbar:
   - badge = nombre de notifications non lues
diff --git a/frontend/components/employees/MileageTab.vue b/frontend/components/employees/MileageTab.vue
index 7c033e3..8fd7937 100644
--- a/frontend/components/employees/MileageTab.vue
+++ b/frontend/components/employees/MileageTab.vue
@@ -2,9 +2,10 @@
     <section class="mt-8">
         <div class="overflow-hidden bg-white">
             <div
-                class="grid grid-cols-4 border border-black bg-tertiary-500 px-6 py-3 text-[20px] font-semibold text-black rounded-t-md">
+                class="grid grid-cols-5 border border-black bg-tertiary-500 px-6 py-3 text-[20px] font-semibold text-black rounded-t-md">
                 <p>Mois</p>
                 <p>Nombre de Km</p>
+                <p>Montant €</p>
                 <p>Commentaire</p>
                 <p>Justificatif</p>
             </div>
@@ -15,11 +16,12 @@
                 <div
                     v-for="item in allowances"
                     :key="item.id"
-                    class="grid grid-cols-4 border-b border-primary-500 px-6 py-3 text-md font-bold text-primary-500 last:border-b-0 cursor-pointer hover:bg-tertiary-500"
+                    class="grid grid-cols-5 border-b border-primary-500 px-6 py-3 text-md font-bold text-primary-500 last:border-b-0 cursor-pointer hover:bg-tertiary-500"
                     @click="onOpenEditDrawer(item)"
                 >
                     <p>{{ formatMonth(item.month) }}</p>
                     <p>{{ item.kilometers }}</p>
+                    <p>{{ item.amount ? item.amount + ' €' : '-' }}</p>
                     <p>{{ item.comment ?? '-' }}</p>
                     <p>
                         <a
@@ -48,7 +50,7 @@
         </div>
 
 
-        <AppDrawer v-model="isDrawerOpen" title="Frais Kms">
+        <AppDrawer v-model="isDrawerOpen" title="Frais">
             <form class="space-y-4" @submit.prevent="onSubmit">
                 <div>
                     <label class="text-md font-semibold text-neutral-700" for="mileage-month">
@@ -64,7 +66,7 @@
 
                 <div>
                     <label class="text-md font-semibold text-neutral-700" for="mileage-kilometers">
-                        Nombre de Km <span class="text-red-600">*</span>
+                        Nombre de Km
                     </label>
                     <input
                         id="mileage-kilometers"
@@ -76,6 +78,21 @@
                     />
                 </div>
 
+                <div>
+                    <label class="text-md font-semibold text-neutral-700" for="mileage-amount">
+                        Montant (€)
+                    </label>
+                    <input
+                        id="mileage-amount"
+                        v-model.number="form.amount"
+                        type="number"
+                        step="0.01"
+                        min="0"
+                        class="mt-2 w-full rounded-md border border-neutral-300 px-3 py-2 text-base text-neutral-900 focus:border-primary-500 focus:outline-none focus:ring-2 focus:ring-secondary-500/20"
+                    />
+                    <p class="mt-1 text-sm text-neutral-500">Au moins un des deux champs doit être rempli</p>
+                </div>
+
                 <div>
                     <label class="text-md font-semibold text-neutral-700" for="mileage-receipt">
                         Justificatif
@@ -148,8 +165,8 @@ const props = defineProps<{
 }>()
 
 const emit = defineEmits<{
-    (event: 'create', data: { month: string; kilometers: number; comment?: string }, file?: File): void
-    (event: 'update', id: number, data: { month: string; kilometers: number; comment?: string }, file?: File): void
+    (event: 'create', data: { month: string; kilometers: number; amount: number; comment?: string }, file?: File): void
+    (event: 'update', id: number, data: { month: string; kilometers: number; amount: number; comment?: string }, file?: File): void
     (event: 'delete', id: number): void
 }>()
 
@@ -168,11 +185,12 @@ const currentYearMonth = () => {
 const form = reactive({
     month: currentYearMonth(),
     kilometers: 0,
+    amount: 0,
     comment: ''
 })
 
 const isFormValid = computed(() => {
-    return form.month && form.kilometers > 0 && !fileError.value
+    return form.month && (form.kilometers > 0 || form.amount > 0) && !fileError.value
 })
 
 const monthLabels: Record<number, string> = {
@@ -201,6 +219,7 @@ const formatMonth = (dateStr: string): string => {
 const resetForm = () => {
     form.month = currentYearMonth()
     form.kilometers = 0
+    form.amount = 0
     form.comment = ''
     selectedFile.value = undefined
     fileError.value = ''
@@ -222,6 +241,7 @@ const onOpenEditDrawer = (item: MileageAllowance) => {
     // Extract YYYY-MM from YYYY-MM-DD
     form.month = item.month.substring(0, 7)
     form.kilometers = item.kilometers
+    form.amount = item.amount
     form.comment = item.comment ?? ''
     selectedFile.value = undefined
     if (fileInput.value) {
@@ -247,6 +267,7 @@ const onSubmit = () => {
     const data = {
         month: `${form.month}-01`,
         kilometers: form.kilometers,
+        amount: form.amount,
         comment: form.comment || undefined
     }
 
diff --git a/frontend/composables/useEmployeeMileage.ts b/frontend/composables/useEmployeeMileage.ts
index bd18bfc..6bcbb79 100644
--- a/frontend/composables/useEmployeeMileage.ts
+++ b/frontend/composables/useEmployeeMileage.ts
@@ -32,12 +32,13 @@ export const useEmployeeMileage = (employee: Ref<Employee | null>, reloadEmploye
     mileageDataLoaded.value = false
   }
 
-  const submitCreateMileage = async (data: { month: string; kilometers: number; comment?: string }, file?: File) => {
+  const submitCreateMileage = async (data: { month: string; kilometers: number; amount: number; comment?: string }, file?: File) => {
     if (!employee.value) return
     const result = await createMileageAllowance({
       employeeId: employee.value.id,
       month: data.month,
       kilometers: data.kilometers,
+      amount: data.amount,
       comment: data.comment
     })
     if (file && result?.id) {
@@ -46,7 +47,7 @@ export const useEmployeeMileage = (employee: Ref<Employee | null>, reloadEmploye
     await reloadEmployee()
   }
 
-  const submitUpdateMileage = async (id: number, data: { month: string; kilometers: number; comment?: string }, file?: File) => {
+  const submitUpdateMileage = async (id: number, data: { month: string; kilometers: number; amount: number; comment?: string }, file?: File) => {
     await updateMileageAllowance(id, data)
     if (file) {
       await uploadReceipt(apiBase, id, file)
diff --git a/frontend/pages/employees/[id].vue b/frontend/pages/employees/[id].vue
index 0e63a9e..9adc269 100644
--- a/frontend/pages/employees/[id].vue
+++ b/frontend/pages/employees/[id].vue
@@ -62,8 +62,8 @@
                             : 'border-transparent text-primary-500/50 hover:text-primary-500'"
                         @click="activeTab = 'mileage'"
                     >
-                        <Icon name="mdi:car-outline" size="24" class="align-self"/>
-                        Frais Kms
+                        <Icon name="mdi:account-cash-outline" size="24" class="align-self"/>
+                        Frais
                     </button>
                     <button
                         class="pb-2 border-b-2 flex items-center gap-3"
diff --git a/frontend/services/dto/mileage-allowance.ts b/frontend/services/dto/mileage-allowance.ts
index 1aee089..84f1efc 100644
--- a/frontend/services/dto/mileage-allowance.ts
+++ b/frontend/services/dto/mileage-allowance.ts
@@ -2,6 +2,7 @@ export type MileageAllowance = {
   id: number
   month: string
   kilometers: number
+  amount: number
   comment: string | null
   receiptPath: string | null
   receiptName: string | null
diff --git a/frontend/services/mileage-allowances.ts b/frontend/services/mileage-allowances.ts
index df7f45f..cc5f8d7 100644
--- a/frontend/services/mileage-allowances.ts
+++ b/frontend/services/mileage-allowances.ts
@@ -16,6 +16,7 @@ export const createMileageAllowance = async (data: {
   employeeId: number
   month: string
   kilometers: number
+  amount: number
   comment?: string
 }) => {
   const api = useApi()
@@ -23,6 +24,7 @@ export const createMileageAllowance = async (data: {
     employee: `/api/employees/${data.employeeId}`,
     month: data.month,
     kilometers: data.kilometers,
+    amount: data.amount,
     comment: data.comment
   }, {
     toastSuccessKey: 'success.mileage.create',
@@ -33,12 +35,14 @@ export const createMileageAllowance = async (data: {
 export const updateMileageAllowance = async (id: number, data: {
   month: string
   kilometers: number
+  amount: number
   comment?: string
 }) => {
   const api = useApi()
   return api.patch<MileageAllowance>(`/mileage_allowances/${id}`, {
     month: data.month,
     kilometers: data.kilometers,
+    amount: data.amount,
     comment: data.comment
   }, {
     toastSuccessKey: 'success.mileage.update',
diff --git a/migrations/Version20260318143503.php b/migrations/Version20260318143503.php
new file mode 100644
index 0000000..4756d83
--- /dev/null
+++ b/migrations/Version20260318143503.php
@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20260318143503 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Add amount column to mileage_allowances';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE mileage_allowances ADD COLUMN amount DOUBLE PRECISION DEFAULT 0 NOT NULL');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE mileage_allowances DROP COLUMN amount');
+    }
+}
diff --git a/src/Entity/MileageAllowance.php b/src/Entity/MileageAllowance.php
index d2f34c3..c5e125a 100644
--- a/src/Entity/MileageAllowance.php
+++ b/src/Entity/MileageAllowance.php
@@ -87,6 +87,10 @@ class MileageAllowance
     #[Groups(['mileage_allowance:read', 'mileage_allowance:write'])]
     private float $kilometers = 0;
 
+    #[ORM\Column(type: 'float', options: ['default' => 0])]
+    #[Groups(['mileage_allowance:read', 'mileage_allowance:write'])]
+    private float $amount = 0;
+
     #[ORM\Column(type: 'text', nullable: true)]
     #[Groups(['mileage_allowance:read', 'mileage_allowance:write'])]
     private ?string $comment = null;
@@ -149,6 +153,18 @@ class MileageAllowance
         return $this;
     }
 
+    public function getAmount(): float
+    {
+        return $this->amount;
+    }
+
+    public function setAmount(float $amount): self
+    {
+        $this->amount = $amount;
+
+        return $this;
+    }
+
     public function getComment(): ?string
     {
         return $this->comment;