diff --git a/frontend/components/employees/BonusTab.vue b/frontend/components/employees/BonusTab.vue
new file mode 100644
index 0000000..6324eea
--- /dev/null
+++ b/frontend/components/employees/BonusTab.vue
@@ -0,0 +1,207 @@
+<template>
+    <section class="mt-8">
+        <div class="overflow-hidden bg-white">
+            <div
+                class="grid grid-cols-3 border border-black bg-tertiary-500 px-6 py-3 text-[20px] font-semibold text-black rounded-t-md">
+                <p>Mois</p>
+                <p>Montant €</p>
+                <p>Commentaire</p>
+            </div>
+            <div v-if="bonuses.length === 0" class="px-6 py-4 text-[20px] font-bold text-primary-500 border-x border-b border-primary-500 rounded-b-md">
+                Aucune prime.
+            </div>
+            <div v-else class="border-x border-b border-primary-500 rounded-b-md">
+                <div
+                    v-for="item in bonuses"
+                    :key="item.id"
+                    class="grid grid-cols-3 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.amount }} €</p>
+                    <p>{{ item.comment ?? '-' }}</p>
+                </div>
+            </div>
+        </div>
+        <div class="flex justify-center mb-4 mt-8">
+            <button
+                type="button"
+                class="flex w-[200px] items-center justify-center gap-2 rounded-md bg-primary-500 px-4 py-2 text-md text-white disabled:cursor-not-allowed disabled:opacity-50"
+                @click="onOpenCreateDrawer"
+            >
+                + Ajouter
+            </button>
+        </div>
+
+        <AppDrawer v-model="isDrawerOpen" :title="isEditing ? 'Modification prime' : 'Nouvelle prime'">
+            <form class="space-y-4" @submit.prevent="onSubmit">
+                <div>
+                    <label class="text-md font-semibold text-neutral-700" for="bonus-month">
+                        Mois <span class="text-red-600">*</span>
+                    </label>
+                    <input
+                        id="bonus-month"
+                        v-model="form.month"
+                        type="month"
+                        class="capitalize 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"
+                    />
+                </div>
+
+                <div>
+                    <label class="text-md font-semibold text-neutral-700" for="bonus-amount">
+                        Montant (€) <span class="text-red-600">*</span>
+                    </label>
+                    <input
+                        id="bonus-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"
+                    />
+                </div>
+
+                <div>
+                    <label class="text-md font-semibold text-neutral-700" for="bonus-comment">
+                        Commentaire
+                    </label>
+                    <textarea
+                        id="bonus-comment"
+                        v-model="form.comment"
+                        rows="3"
+                        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"
+                        placeholder="Commentaire..."
+                    />
+                </div>
+
+                <div v-if="isEditing" class="grid grid-cols-2 gap-3 pt-2">
+                    <button
+                        type="button"
+                        class="flex items-center justify-center rounded-md bg-red-500 px-4 py-2 text-md font-semibold text-white hover:bg-red-600"
+                        @click="onDelete"
+                    >
+                        Supprimer
+                    </button>
+                    <button
+                        type="submit"
+                        class="flex items-center justify-center rounded-md bg-primary-500 px-4 py-2 text-md font-semibold text-white hover:bg-secondary-500 disabled:cursor-not-allowed disabled:opacity-50"
+                        :disabled="!isFormValid"
+                    >
+                        Modifier
+                    </button>
+                </div>
+                <div v-else class="flex justify-center pt-2">
+                    <button
+                        type="submit"
+                        class="flex w-[200px] items-center justify-center gap-2 rounded-md bg-primary-500 px-4 py-2 text-md font-semibold text-white hover:bg-secondary-500 disabled:cursor-not-allowed disabled:opacity-50"
+                        :disabled="!isFormValid"
+                    >
+                        + Ajouter
+                    </button>
+                </div>
+            </form>
+        </AppDrawer>
+    </section>
+</template>
+
+<script setup lang="ts">
+import type { Bonus } from '~/services/dto/bonus'
+import AppDrawer from '~/components/AppDrawer.vue'
+
+const props = defineProps<{
+    bonuses: Bonus[]
+}>()
+
+const emit = defineEmits<{
+    (event: 'create', data: { month: string; amount: number; comment?: string }): void
+    (event: 'update', id: number, data: { month: string; amount: number; comment?: string }): void
+    (event: 'delete', id: number): void
+}>()
+
+const isDrawerOpen = ref(false)
+const isEditing = ref(false)
+const editingItem = ref<Bonus | null>(null)
+
+const currentYearMonth = () => {
+    const now = new Date()
+    return `${now.getFullYear()}-${String(now.getMonth() + 1).padStart(2, '0')}`
+}
+
+const form = reactive({
+    month: currentYearMonth(),
+    amount: 0,
+    comment: ''
+})
+
+const isFormValid = computed(() => {
+    return form.month && form.amount > 0
+})
+
+const monthLabels: Record<number, string> = {
+    1: 'Janvier',
+    2: 'Février',
+    3: 'Mars',
+    4: 'Avril',
+    5: 'Mai',
+    6: 'Juin',
+    7: 'Juillet',
+    8: 'Août',
+    9: 'Septembre',
+    10: 'Octobre',
+    11: 'Novembre',
+    12: 'Décembre'
+}
+
+const formatMonth = (dateStr: string): string => {
+    const date = new Date(dateStr)
+    if (Number.isNaN(date.getTime())) return dateStr
+    const month = date.getMonth() + 1
+    const year = date.getFullYear()
+    return `${monthLabels[month]} ${year}`
+}
+
+const resetForm = () => {
+    form.month = currentYearMonth()
+    form.amount = 0
+    form.comment = ''
+}
+
+const onOpenCreateDrawer = () => {
+    isEditing.value = false
+    editingItem.value = null
+    resetForm()
+    isDrawerOpen.value = true
+}
+
+const onOpenEditDrawer = (item: Bonus) => {
+    isEditing.value = true
+    editingItem.value = item
+    form.month = item.month.substring(0, 7)
+    form.amount = item.amount
+    form.comment = item.comment ?? ''
+    isDrawerOpen.value = true
+}
+
+const onSubmit = () => {
+    const data = {
+        month: `${form.month}-01`,
+        amount: form.amount,
+        comment: form.comment || undefined
+    }
+
+    if (isEditing.value && editingItem.value) {
+        emit('update', editingItem.value.id, data)
+    } else {
+        emit('create', data)
+    }
+    isDrawerOpen.value = false
+}
+
+const onDelete = () => {
+    if (!editingItem.value) return
+    const ok = window.confirm('Supprimer cette prime ?')
+    if (!ok) return
+    emit('delete', editingItem.value.id)
+    isDrawerOpen.value = false
+}
+</script>
diff --git a/frontend/composables/useEmployeeBonus.ts b/frontend/composables/useEmployeeBonus.ts
new file mode 100644
index 0000000..8f331e9
--- /dev/null
+++ b/frontend/composables/useEmployeeBonus.ts
@@ -0,0 +1,62 @@
+import type { Ref } from 'vue'
+import type { Bonus } from '~/services/dto/bonus'
+import type { Employee } from '~/services/dto/employee'
+import {
+  listBonuses,
+  createBonus,
+  updateBonus,
+  deleteBonus
+} from '~/services/bonuses'
+
+export const useEmployeeBonus = (employee: Ref<Employee | null>, reloadEmployee: () => Promise<void>) => {
+  const bonuses = ref<Bonus[]>([])
+  const isBonusLoading = ref(false)
+  const bonusDataLoaded = ref(false)
+
+  const loadBonusData = async () => {
+    if (!employee.value || isBonusLoading.value) return
+    isBonusLoading.value = true
+    try {
+      bonuses.value = await listBonuses(employee.value.id)
+      bonusDataLoaded.value = true
+    } finally {
+      isBonusLoading.value = false
+    }
+  }
+
+  const resetLoaded = () => {
+    bonusDataLoaded.value = false
+  }
+
+  const submitCreateBonus = async (data: { month: string; amount: number; comment?: string }) => {
+    if (!employee.value) return
+    await createBonus({
+      employeeId: employee.value.id,
+      month: data.month,
+      amount: data.amount,
+      comment: data.comment
+    })
+    await reloadEmployee()
+  }
+
+  const submitUpdateBonus = async (id: number, data: { month: string; amount: number; comment?: string }) => {
+    await updateBonus(id, data)
+    await reloadEmployee()
+  }
+
+  const submitDeleteBonus = async (id: number) => {
+    await deleteBonus(id)
+    await reloadEmployee()
+  }
+
+  return {
+    bonuses,
+    isBonusLoading,
+    bonusDataLoaded,
+    loadBonusData,
+    resetLoaded,
+    submitCreateBonus,
+    submitUpdateBonus,
+    submitDeleteBonus
+  }
+}
diff --git a/frontend/composables/useEmployeeDetailPage.ts b/frontend/composables/useEmployeeDetailPage.ts
index 73a399a..df00a84 100644
--- a/frontend/composables/useEmployeeDetailPage.ts
+++ b/frontend/composables/useEmployeeDetailPage.ts
@@ -6,7 +6,7 @@ export const useEmployeeDetailPage = () => {
   const route = useRoute()
   const employee = ref<Employee | null>(null)
   const isLoading = ref(false)
-  const activeTab = ref<'contract' | 'leave' | 'rtt' | 'mileage'>('contract')
+  const activeTab = ref<'contract' | 'leave' | 'rtt' | 'mileage' | 'bonus'>('contract')
 
   const showLeaveTab = computed(() => employee.value?.currentContractNature !== 'INTERIM')
   const showRttTab = computed(() => employee.value?.contract?.type !== CONTRACT_TYPES.FORFAIT)
@@ -39,6 +39,7 @@ export const useEmployeeDetailPage = () => {
       leave.resetLoaded()
       rtt.resetLoaded()
       mileage.resetLoaded()
+      bonus.resetLoaded()
 
       if (activeTab.value === 'leave' && showLeaveTab.value) {
         await leave.loadLeaveData()
@@ -46,6 +47,8 @@ export const useEmployeeDetailPage = () => {
         await rtt.loadRttData()
       } else if (activeTab.value === 'mileage') {
         await mileage.loadMileageData()
+      } else if (activeTab.value === 'bonus') {
+        await bonus.loadBonusData()
       }
     } finally {
       isLoading.value = false
@@ -56,6 +59,7 @@ export const useEmployeeDetailPage = () => {
   const leave = useEmployeeLeave(employee, loadEmployee)
   const rtt = useEmployeeRtt(employee, loadEmployee)
   const mileage = useEmployeeMileage(employee, loadEmployee)
+  const bonus = useEmployeeBonus(employee, loadEmployee)
 
   watch(activeTab, (tab) => {
     if (tab === 'leave' && !leave.leaveDataLoaded.value && showLeaveTab.value) {
@@ -64,6 +68,8 @@ export const useEmployeeDetailPage = () => {
       rtt.loadRttData()
     } else if (tab === 'mileage' && !mileage.mileageDataLoaded.value) {
       mileage.loadMileageData()
+    } else if (tab === 'bonus' && !bonus.bonusDataLoaded.value) {
+      bonus.loadBonusData()
     }
   })
 
@@ -82,6 +88,7 @@ export const useEmployeeDetailPage = () => {
     ...contract,
     ...leave,
     ...rtt,
-    ...mileage
+    ...mileage,
+    ...bonus
   }
 }
diff --git a/frontend/i18n/locales/fr.json b/frontend/i18n/locales/fr.json
index 987b1d8..1d7a261 100644
--- a/frontend/i18n/locales/fr.json
+++ b/frontend/i18n/locales/fr.json
@@ -41,6 +41,11 @@
             "create": "Impossible de créer le frais kilométrique.",
             "update": "Impossible de mettre à jour le frais kilométrique.",
             "delete": "Impossible de supprimer le frais kilométrique."
+        },
+        "bonus": {
+            "create": "Impossible de créer la prime.",
+            "update": "Impossible de mettre à jour la prime.",
+            "delete": "Impossible de supprimer la prime."
         }
     },
     "success": {
@@ -77,6 +82,11 @@
             "create": "Frais kilométrique créé.",
             "update": "Frais kilométrique mis à jour.",
             "delete": "Frais kilométrique supprimé."
+        },
+        "bonus": {
+            "create": "Prime créée.",
+            "update": "Prime mise à jour.",
+            "delete": "Prime supprimée."
         }
     }
 }
diff --git a/frontend/pages/employees/[id].vue b/frontend/pages/employees/[id].vue
index 904f464..0e63a9e 100644
--- a/frontend/pages/employees/[id].vue
+++ b/frontend/pages/employees/[id].vue
@@ -65,6 +65,16 @@
                         <Icon name="mdi:car-outline" size="24" class="align-self"/>
                         Frais Kms
                     </button>
+                    <button
+                        class="pb-2 border-b-2 flex items-center gap-3"
+                        :class="activeTab === 'bonus'
+                            ? 'border-primary-500 text-primary-500'
+                            : 'border-transparent text-primary-500/50 hover:text-primary-500'"
+                        @click="activeTab = 'bonus'"
+                    >
+                        <Icon name="mdi:money-100" size="24" class="align-self"/>
+                        Prime
+                    </button>
                 </div>
             </div>
             <div class="min-h-0 flex-1">
@@ -141,6 +151,19 @@
                         @delete="submitDeleteMileage"
                     />
                 </div>
+                <div v-else-if="activeTab === 'bonus'" class="h-full">
+                    <div v-if="isBonusLoading" class="mt-6 rounded-lg border border-neutral-200 bg-white p-6 text-md text-neutral-600">
+                        Chargement...
+                    </div>
+                    <EmployeesBonusTab
+                        v-else
+                        class="h-full"
+                        :bonuses="bonuses"
+                        @create="submitCreateBonus"
+                        @update="submitUpdateBonus"
+                        @delete="submitDeleteBonus"
+                    />
+                </div>
             </div>
         </div>
     </div>
@@ -203,7 +226,12 @@ const {
     mileageApiBase,
     submitCreateMileage,
     submitUpdateMileage,
-    submitDeleteMileage
+    submitDeleteMileage,
+    bonuses,
+    isBonusLoading,
+    submitCreateBonus,
+    submitUpdateBonus,
+    submitDeleteBonus
 } = useEmployeeDetailPage()
 
 useHead(() => ({
diff --git a/frontend/services/bonuses.ts b/frontend/services/bonuses.ts
new file mode 100644
index 0000000..9d7d1cb
--- /dev/null
+++ b/frontend/services/bonuses.ts
@@ -0,0 +1,54 @@
+import type { Bonus } from './dto/bonus'
+import { extractItems } from '~/utils/api'
+
+export const listBonuses = async (employeeId: number) => {
+  const api = useApi()
+  const data = await api.get<Bonus[] | { 'hydra:member'?: Bonus[] }>(
+    '/bonuses',
+    { employee: `/api/employees/${employeeId}` },
+    { toast: false }
+  )
+  return extractItems<Bonus>(data)
+}
+
+export const createBonus = async (data: {
+  employeeId: number
+  month: string
+  amount: number
+  comment?: string
+}) => {
+  const api = useApi()
+  return api.post<Bonus>('/bonuses', {
+    employee: `/api/employees/${data.employeeId}`,
+    month: data.month,
+    amount: data.amount,
+    comment: data.comment
+  }, {
+    toastSuccessKey: 'success.bonus.create',
+    toastErrorKey: 'errors.bonus.create'
+  })
+}
+
+export const updateBonus = async (id: number, data: {
+  month: string
+  amount: number
+  comment?: string
+}) => {
+  const api = useApi()
+  return api.patch<Bonus>(`/bonuses/${id}`, {
+    month: data.month,
+    amount: data.amount,
+    comment: data.comment
+  }, {
+    toastSuccessKey: 'success.bonus.update',
+    toastErrorKey: 'errors.bonus.update'
+  })
+}
+
+export const deleteBonus = async (id: number) => {
+  const api = useApi()
+  return api.delete(`/bonuses/${id}`, {}, {
+    toastSuccessKey: 'success.bonus.delete',
+    toastErrorKey: 'errors.bonus.delete'
+  })
+}
diff --git a/frontend/services/dto/bonus.ts b/frontend/services/dto/bonus.ts
new file mode 100644
index 0000000..95071a1
--- /dev/null
+++ b/frontend/services/dto/bonus.ts
@@ -0,0 +1,7 @@
+export type Bonus = {
+  id: number
+  month: string
+  amount: number
+  comment: string | null
+  createdAt: string
+}
diff --git a/migrations/Version20260313151220.php b/migrations/Version20260313151220.php
new file mode 100644
index 0000000..c230b1c
--- /dev/null
+++ b/migrations/Version20260313151220.php
@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20260313151220 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Create bonuses table';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->addSql('CREATE TABLE bonuses (id INT GENERATED BY DEFAULT AS IDENTITY NOT NULL, employee_id INT NOT NULL, month DATE NOT NULL, amount DOUBLE PRECISION NOT NULL, comment TEXT DEFAULT NULL, created_at TIMESTAMP(0) WITHOUT TIME ZONE NOT NULL, PRIMARY KEY (id))');
+        $this->addSql('CREATE INDEX IDX_8535CFD28C03F15C ON bonuses (employee_id)');
+        $this->addSql('COMMENT ON COLUMN bonuses.created_at IS \'(DC2Type:datetime_immutable)\'');
+        $this->addSql('COMMENT ON COLUMN bonuses.month IS \'(DC2Type:date_immutable)\'');
+        $this->addSql('ALTER TABLE bonuses ADD CONSTRAINT FK_8535CFD28C03F15C FOREIGN KEY (employee_id) REFERENCES employees (id) NOT DEFERRABLE');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE bonuses DROP CONSTRAINT FK_8535CFD28C03F15C');
+        $this->addSql('DROP TABLE bonuses');
+    }
+}
diff --git a/src/Entity/Bonus.php b/src/Entity/Bonus.php
new file mode 100644
index 0000000..c1e3186
--- /dev/null
+++ b/src/Entity/Bonus.php
@@ -0,0 +1,145 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Entity;
+
+use ApiPlatform\Doctrine\Orm\Filter\DateFilter;
+use ApiPlatform\Doctrine\Orm\Filter\SearchFilter;
+use ApiPlatform\Metadata\ApiFilter;
+use ApiPlatform\Metadata\ApiResource;
+use ApiPlatform\Metadata\Delete;
+use ApiPlatform\Metadata\Get;
+use ApiPlatform\Metadata\GetCollection;
+use ApiPlatform\Metadata\Patch;
+use ApiPlatform\Metadata\Post;
+use App\Repository\BonusRepository;
+use DateTimeImmutable;
+use Doctrine\ORM\Mapping as ORM;
+use Symfony\Component\Serializer\Attribute\Groups;
+
+#[ApiResource(
+    operations: [
+        new Get(
+            security: "is_granted('ROLE_USER')"
+        ),
+        new GetCollection(
+            security: "is_granted('ROLE_USER')"
+        ),
+        new Post(
+            security: "is_granted('ROLE_ADMIN')"
+        ),
+        new Patch(
+            security: "is_granted('ROLE_ADMIN')"
+        ),
+        new Delete(
+            security: "is_granted('ROLE_ADMIN')"
+        ),
+    ],
+    normalizationContext: [
+        'groups'          => ['bonus:read', 'employee:read'],
+        'datetime_format' => 'Y-m-d',
+    ],
+    denormalizationContext: [
+        'groups'          => ['bonus:write'],
+        'datetime_format' => 'Y-m-d',
+    ],
+    order: ['month' => 'DESC'],
+    paginationEnabled: false,
+)]
+#[ApiFilter(DateFilter::class, properties: ['month'])]
+#[ApiFilter(SearchFilter::class, properties: ['employee' => 'exact'])]
+#[ORM\Entity(repositoryClass: BonusRepository::class)]
+#[ORM\Table(name: 'bonuses')]
+class Bonus
+{
+    #[ORM\Id]
+    #[ORM\GeneratedValue]
+    #[ORM\Column(type: 'integer')]
+    #[Groups(['bonus:read'])]
+    private ?int $id = null;
+
+    #[ORM\ManyToOne(targetEntity: Employee::class)]
+    #[ORM\JoinColumn(nullable: false)]
+    #[Groups(['bonus:read', 'bonus:write'])]
+    private ?Employee $employee = null;
+
+    #[ORM\Column(type: 'date_immutable')]
+    #[Groups(['bonus:read', 'bonus:write'])]
+    private ?DateTimeImmutable $month = null;
+
+    #[ORM\Column(type: 'float')]
+    #[Groups(['bonus:read', 'bonus:write'])]
+    private float $amount = 0;
+
+    #[ORM\Column(type: 'text', nullable: true)]
+    #[Groups(['bonus:read', 'bonus:write'])]
+    private ?string $comment = null;
+
+    #[ORM\Column(type: 'datetime_immutable')]
+    #[Groups(['bonus:read'])]
+    private DateTimeImmutable $createdAt;
+
+    public function __construct()
+    {
+        $this->createdAt = new DateTimeImmutable();
+    }
+
+    public function getId(): ?int
+    {
+        return $this->id;
+    }
+
+    public function getEmployee(): ?Employee
+    {
+        return $this->employee;
+    }
+
+    public function setEmployee(?Employee $employee): self
+    {
+        $this->employee = $employee;
+
+        return $this;
+    }
+
+    public function getMonth(): ?DateTimeImmutable
+    {
+        return $this->month;
+    }
+
+    public function setMonth(?DateTimeImmutable $month): self
+    {
+        $this->month = $month;
+
+        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;
+    }
+
+    public function setComment(?string $comment): self
+    {
+        $this->comment = $comment;
+
+        return $this;
+    }
+
+    public function getCreatedAt(): DateTimeImmutable
+    {
+        return $this->createdAt;
+    }
+}
diff --git a/src/Repository/BonusRepository.php b/src/Repository/BonusRepository.php
new file mode 100644
index 0000000..21e93ac
--- /dev/null
+++ b/src/Repository/BonusRepository.php
@@ -0,0 +1,20 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Repository;
+
+use App\Entity\Bonus;
+use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
+use Doctrine\Persistence\ManagerRegistry;
+
+/**
+ * @extends ServiceEntityRepository<Bonus>
+ */
+final class BonusRepository extends ServiceEntityRepository
+{
+    public function __construct(ManagerRegistry $registry)
+    {
+        parent::__construct($registry, Bonus::class);
+    }
+}