diff --git a/src/Bundle/ChillTicketBundle/src/Entity/StateEnum.php b/src/Bundle/ChillTicketBundle/src/Entity/StateEnum.php
new file mode 100644
index 000000000..0c59a1ad9
--- /dev/null
+++ b/src/Bundle/ChillTicketBundle/src/Entity/StateEnum.php
@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Chill\TicketBundle\Entity;
+
+/**
+ * Represents the state of a ticket (open or closed).
+ */
+enum StateEnum: string
+{
+    case OPEN = 'open';
+    case CLOSED = 'closed';
+}
diff --git a/src/Bundle/ChillTicketBundle/src/Entity/StateHistory.php b/src/Bundle/ChillTicketBundle/src/Entity/StateHistory.php
new file mode 100644
index 000000000..e6ddf1f88
--- /dev/null
+++ b/src/Bundle/ChillTicketBundle/src/Entity/StateHistory.php
@@ -0,0 +1,85 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Chill\TicketBundle\Entity;
+
+use Chill\MainBundle\Doctrine\Model\TrackCreationInterface;
+use Chill\MainBundle\Doctrine\Model\TrackCreationTrait;
+use Doctrine\ORM\Mapping as ORM;
+use Symfony\Component\Serializer\Annotation as Serializer;
+
+/**
+ * Represents the history of a state associated with a ticket.
+ *
+ * This entity is used to track the changes in a ticket's state over time.
+ * Implements the TrackCreationInterface for tracking entity lifecycle creation.
+ */
+#[ORM\Entity]
+#[ORM\Table(name: 'state_history', schema: 'chill_ticket')]
+#[Serializer\DiscriminatorMap(typeProperty: 'type', mapping: ['ticket_state_history' => StateHistory::class])]
+class StateHistory implements TrackCreationInterface
+{
+    use TrackCreationTrait;
+
+    #[ORM\Id]
+    #[ORM\Column(type: \Doctrine\DBAL\Types\Types::INTEGER, nullable: false)]
+    #[ORM\GeneratedValue(strategy: 'AUTO')]
+    #[Serializer\Groups(['read'])]
+    private ?int $id = null;
+
+    #[ORM\Column(type: \Doctrine\DBAL\Types\Types::DATETIME_IMMUTABLE, nullable: true, options: ['default' => null])]
+    #[Serializer\Groups(['read'])]
+    private ?\DateTimeImmutable $endDate = null;
+
+    public function __construct(
+        #[ORM\Column(type: \Doctrine\DBAL\Types\Types::STRING, nullable: false, enumType: StateEnum::class)]
+        #[Serializer\Groups(['read'])]
+        private StateEnum $state,
+        #[ORM\ManyToOne(targetEntity: Ticket::class)]
+        #[ORM\JoinColumn(nullable: false)]
+        private Ticket $ticket,
+        #[ORM\Column(type: \Doctrine\DBAL\Types\Types::DATETIME_IMMUTABLE, nullable: false)]
+        #[Serializer\Groups(['read'])]
+        private \DateTimeImmutable $startDate = new \DateTimeImmutable('now'),
+    ) {
+        $ticket->addStateHistory($this);
+    }
+
+    public function getEndDate(): ?\DateTimeImmutable
+    {
+        return $this->endDate;
+    }
+
+    public function getId(): ?int
+    {
+        return $this->id;
+    }
+
+    public function getState(): StateEnum
+    {
+        return $this->state;
+    }
+
+    public function getStartDate(): \DateTimeImmutable
+    {
+        return $this->startDate;
+    }
+
+    public function getTicket(): Ticket
+    {
+        return $this->ticket;
+    }
+
+    public function setEndDate(?\DateTimeImmutable $endDate): void
+    {
+        $this->endDate = $endDate;
+    }
+}
diff --git a/src/Bundle/ChillTicketBundle/src/Entity/Ticket.php b/src/Bundle/ChillTicketBundle/src/Entity/Ticket.php
index 84b07eb17..128c27502 100644
--- a/src/Bundle/ChillTicketBundle/src/Entity/Ticket.php
+++ b/src/Bundle/ChillTicketBundle/src/Entity/Ticket.php
@@ -37,6 +37,7 @@ use Doctrine\ORM\Mapping as ORM;
  * - association between the ticket and motive: @see{MotiveHistory};
  * - association between the ticket and addresses: @see{AddresseeHistory};
  * - association between the ticket and input: @see{InputHistory};
+ * - association between the ticket and state: @see{StateHistory};
  */
 #[ORM\Entity]
 #[ORM\Table(name: 'ticket', schema: 'chill_ticket')]
@@ -83,6 +84,12 @@ class Ticket implements TrackCreationInterface, TrackUpdateInterface
     #[ORM\OneToMany(targetEntity: PersonHistory::class, mappedBy: 'ticket')]
     private Collection $personHistories;
 
+    /**
+     * @var Collection<int, StateHistory>
+     */
+    #[ORM\OneToMany(targetEntity: StateHistory::class, mappedBy: 'ticket', cascade: ['persist', 'remove'])]
+    private Collection $stateHistories;
+
     public function __construct()
     {
         $this->addresseeHistory = new ArrayCollection();
@@ -90,6 +97,7 @@ class Ticket implements TrackCreationInterface, TrackUpdateInterface
         $this->motiveHistories = new ArrayCollection();
         $this->personHistories = new ArrayCollection();
         $this->inputHistories = new ArrayCollection();
+        $this->stateHistories = new ArrayCollection();
     }
 
     public function getId(): ?int
@@ -225,4 +233,31 @@ class Ticket implements TrackCreationInterface, TrackUpdateInterface
     {
         return $this->addresseeHistory;
     }
+
+    /**
+     * @internal use @see{StateHistory::__construct} instead
+     */
+    public function addStateHistory(StateHistory $stateHistory): void
+    {
+        $this->stateHistories->add($stateHistory);
+    }
+
+    public function getState(): ?StateEnum
+    {
+        foreach ($this->stateHistories as $stateHistory) {
+            if (null === $stateHistory->getEndDate()) {
+                return $stateHistory->getState();
+            }
+        }
+
+        return null;
+    }
+
+    /**
+     * @return ReadableCollection<int, StateHistory>
+     */
+    public function getStateHistories(): ReadableCollection
+    {
+        return $this->stateHistories;
+    }
 }
diff --git a/src/Bundle/ChillTicketBundle/src/migrations/Version20250603085035.php b/src/Bundle/ChillTicketBundle/src/migrations/Version20250603085035.php
new file mode 100644
index 000000000..a99f550c5
--- /dev/null
+++ b/src/Bundle/ChillTicketBundle/src/migrations/Version20250603085035.php
@@ -0,0 +1,89 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Chill\Migrations\Ticket;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20250603085035 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Add a state to tickets';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->addSql(<<<'SQL'
+            CREATE SEQUENCE chill_ticket.state_history_id_seq INCREMENT BY 1 MINVALUE 1 START 1
+        SQL);
+        $this->addSql(<<<'SQL'
+            CREATE TABLE chill_ticket.state_history (id INT NOT NULL, ticket_id INT NOT NULL,
+            endDate TIMESTAMP(0) WITHOUT TIME ZONE DEFAULT NULL, state VARCHAR(255) NOT NULL,
+            startDate TIMESTAMP(0) WITHOUT TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            createdAt TIMESTAMP(0) WITHOUT TIME ZONE DEFAULT NULL,
+            createdBy_id INT DEFAULT NULL, PRIMARY KEY(id))
+        SQL);
+        $this->addSql(<<<'SQL'
+            CREATE INDEX IDX_B1DCD379700047D2 ON chill_ticket.state_history (ticket_id)
+        SQL);
+        $this->addSql(<<<'SQL'
+            CREATE INDEX IDX_B1DCD3793174800F ON chill_ticket.state_history (createdBy_id)
+        SQL);
+        $this->addSql(<<<'SQL'
+            COMMENT ON COLUMN chill_ticket.state_history.endDate IS '(DC2Type:datetime_immutable)'
+        SQL);
+        $this->addSql(<<<'SQL'
+            COMMENT ON COLUMN chill_ticket.state_history.startDate IS '(DC2Type:datetime_immutable)'
+        SQL);
+        $this->addSql(<<<'SQL'
+            COMMENT ON COLUMN chill_ticket.state_history.createdAt IS '(DC2Type:datetime_immutable)'
+        SQL);
+        $this->addSql(<<<'SQL'
+            ALTER TABLE chill_ticket.state_history ADD CONSTRAINT FK_B1DCD379700047D2 FOREIGN KEY (ticket_id)
+            REFERENCES chill_ticket.ticket (id) NOT DEFERRABLE INITIALLY IMMEDIATE
+        SQL);
+        $this->addSql(<<<'SQL'
+            ALTER TABLE chill_ticket.state_history ADD CONSTRAINT FK_B1DCD3793174800F FOREIGN KEY (createdBy_id)
+            REFERENCES users (id) NOT DEFERRABLE INITIALLY IMMEDIATE
+        SQL);
+        $this->addSql(<<<'SQL'
+            ALTER TABLE chill_ticket.state_history ADD CONSTRAINT ticket_state_not_overlaps
+            exclude using gist (ticket_id with =, tsrange(startdate, enddate) with &&)
+            deferrable initially deferred
+        SQL);
+        $this->addSql(<<<'SQL'
+            INSERT INTO chill_ticket.state_history  (id, ticket_id, state, startDate, createdAt, createdBy_id)
+            SELECT nextval('chill_ticket.state_history_id_seq'), id, 'open', createdAt, createdAt, createdBy_id
+            FROM chill_ticket.ticket
+        SQL);
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql(<<<'SQL'
+            DROP SEQUENCE chill_ticket.state_history_id_seq CASCADE
+        SQL);
+        $this->addSql(<<<'SQL'
+            ALTER TABLE chill_ticket.state_history DROP CONSTRAINT FK_B1DCD379700047D2
+        SQL);
+        $this->addSql(<<<'SQL'
+            ALTER TABLE chill_ticket.state_history DROP CONSTRAINT FK_B1DCD3793174800F
+        SQL);
+        $this->addSql(<<<'SQL'
+            ALTER TABLE chill_ticket.state_history DROP CONSTRAINT ticket_state_not_overlaps
+        SQL);
+        $this->addSql(<<<'SQL'
+            DROP TABLE chill_ticket.state_history
+        SQL);
+    }
+}
diff --git a/src/Bundle/ChillTicketBundle/tests/Entity/TicketTest.php b/src/Bundle/ChillTicketBundle/tests/Entity/TicketTest.php
index b3a9f0b93..6ce8b53ea 100644
--- a/src/Bundle/ChillTicketBundle/tests/Entity/TicketTest.php
+++ b/src/Bundle/ChillTicketBundle/tests/Entity/TicketTest.php
@@ -18,6 +18,8 @@ use Chill\TicketBundle\Entity\AddresseeHistory;
 use Chill\TicketBundle\Entity\Motive;
 use Chill\TicketBundle\Entity\MotiveHistory;
 use Chill\TicketBundle\Entity\PersonHistory;
+use Chill\TicketBundle\Entity\StateEnum;
+use Chill\TicketBundle\Entity\StateHistory;
 use Chill\TicketBundle\Entity\Ticket;
 use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
 
@@ -108,4 +110,29 @@ class TicketTest extends KernelTestCase
         // Verify that getExternalRef returns the updated value
         self::assertSame($newExternalRef, $ticket->getExternalRef());
     }
+
+    public function testGetState(): void
+    {
+        $ticket = new Ticket();
+        $openState = new StateEnum(StateEnum::OPEN, ['en' => 'Open', 'fr' => 'Ouvert']);
+
+        // Initially, the ticket has no state
+        self::assertNull($ticket->getState());
+
+        // Create a state history entry with the open state
+        $history = new StateHistory($openState, $ticket);
+
+        // Verify that the ticket now has the open state
+        self::assertSame($openState, $ticket->getState());
+        self::assertCount(1, $ticket->getStateHistories());
+
+        // Change the state to closed
+        $closedState = new StateEnum(StateEnum::CLOSED, ['en' => 'Closed', 'fr' => 'Fermé']);
+        $history->setEndDate(new \DateTimeImmutable());
+        $history2 = new StateHistory($closedState, $ticket);
+
+        // Verify that the ticket now has the closed state
+        self::assertCount(2, $ticket->getStateHistories());
+        self::assertSame($closedState, $ticket->getState());
+    }
 }