diff --git a/config/services.yaml b/config/services.yaml
index 2ffc895..ad87606 100644
--- a/config/services.yaml
+++ b/config/services.yaml
@@ -30,6 +30,10 @@ services:
         arguments:
             $rttStartDate: '%env(RTT_START_DATE)%'
 
+    App\State\EmployeeRttSummaryProvider:
+        arguments:
+            $rttStartDate: '%env(RTT_START_DATE)%'
+
     App\Repository\Contract\AbsenceReadRepositoryInterface: '@App\Repository\AbsenceRepository'
     App\Repository\Contract\EmployeeContractPeriodReadRepositoryInterface: '@App\Repository\EmployeeContractPeriodRepository'
     App\Repository\Contract\EmployeeScopedRepositoryInterface: '@App\Repository\EmployeeRepository'
diff --git a/frontend/components/employees/RttTab.vue b/frontend/components/employees/RttTab.vue
index a3a7b2f..93b985e 100644
--- a/frontend/components/employees/RttTab.vue
+++ b/frontend/components/employees/RttTab.vue
@@ -332,10 +332,19 @@ const carryMonth = computed(() => {
 })
 
 const showCarryRow = computed(() => {
-  return (
-    currentMonth.value === carryMonth.value &&
-    (props.summary?.carryFromPreviousYearMinutes ?? 0) > 0
-  )
+  if (currentMonth.value !== carryMonth.value) return false
+  if ((props.summary?.carryFromPreviousYearMinutes ?? 0) === 0) return false
+
+  // On the first exercise, hide carry if carry month is before rttStartDate
+  if (props.summary?.rttStartDate) {
+    const startDate = new Date(props.summary.rttStartDate)
+    const viewYear = currentMonth.value >= 6 ? props.summary.year - 1 : props.summary.year
+    const viewDate = new Date(viewYear, currentMonth.value - 1, 1)
+    const startMonthDate = new Date(startDate.getFullYear(), startDate.getMonth(), 1)
+    if (viewDate < startMonthDate) return false
+  }
+
+  return true
 })
 
 // --- Month report row (cumulated balance from previous months) ---
@@ -390,6 +399,18 @@ const monthReport = computed(() => {
 const showMonthReportRow = computed(() => {
   // Not on the carry month — carry row handles that
   if (currentMonth.value === carryMonth.value) return false
+
+  // On the first exercise (containing rttStartDate), hide report for months before the start date
+  if (props.summary?.rttStartDate) {
+    const startDate = new Date(props.summary.rttStartDate)
+    const startYear = startDate.getFullYear()
+    const startMonth = startDate.getMonth() + 1
+    const viewYear = currentMonth.value >= 6 ? props.summary.year - 1 : props.summary.year
+    const viewDate = new Date(viewYear, currentMonth.value - 1, 1)
+    const startMonthDate = new Date(startYear, startMonth - 1, 1)
+    if (viewDate < startMonthDate) return false
+  }
+
   const r = monthReport.value
   return r.total !== 0
 })
diff --git a/frontend/services/dto/employee-rtt-summary.ts b/frontend/services/dto/employee-rtt-summary.ts
index 7509ada..5d0dbe5 100644
--- a/frontend/services/dto/employee-rtt-summary.ts
+++ b/frontend/services/dto/employee-rtt-summary.ts
@@ -32,4 +32,5 @@ export type EmployeeRttSummary = {
   availableMinutes: number
   weeks: EmployeeRttWeekSummary[]
   monthPayments: RttMonthPayment[]
+  rttStartDate: string | null
 }
diff --git a/src/ApiResource/EmployeeRttSummary.php b/src/ApiResource/EmployeeRttSummary.php
index 593b56d..4f61595 100644
--- a/src/ApiResource/EmployeeRttSummary.php
+++ b/src/ApiResource/EmployeeRttSummary.php
@@ -32,6 +32,7 @@ final class EmployeeRttSummary
     public int $currentYearRecoveryMinutes   = 0;
     public int $availableMinutes             = 0;
     public int $totalPaidMinutes             = 0;
+    public ?string $rttStartDate             = null;
 
     /** @var list<RttMonthPayment> */
     public array $monthPayments = [];
diff --git a/src/State/EmployeeRttSummaryProvider.php b/src/State/EmployeeRttSummaryProvider.php
index ecc9731..49f150b 100644
--- a/src/State/EmployeeRttSummaryProvider.php
+++ b/src/State/EmployeeRttSummaryProvider.php
@@ -26,6 +26,8 @@ use Symfony\Component\HttpKernel\Exception\UnprocessableEntityHttpException;
 
 final readonly class EmployeeRttSummaryProvider implements ProviderInterface
 {
+    private ?string $rttStartDate;
+
     public function __construct(
         private Security $security,
         private RequestStack $requestStack,
@@ -34,7 +36,10 @@ final readonly class EmployeeRttSummaryProvider implements ProviderInterface
         private EmployeeRttBalanceRepository $rttBalanceRepository,
         private EmployeeRttPaymentRepository $rttPaymentRepository,
         private RttRecoveryComputationService $rttRecoveryService,
-    ) {}
+        string $rttStartDate = '',
+    ) {
+        $this->rttStartDate = '' !== $rttStartDate ? $rttStartDate : null;
+    }
 
     public function provide(Operation $operation, array $uriVariables = [], array $context = []): EmployeeRttSummary
     {
@@ -93,7 +98,15 @@ final readonly class EmployeeRttSummaryProvider implements ProviderInterface
         $summary->carryBonus50Minutes          = $carry->bonus50Minutes;
         $summary->currentYearRecoveryMinutes   = array_sum(array_map(static fn ($d) => $d->totalMinutes, $currentByWeekStart));
         $summary->availableMinutes             = $summary->carryFromPreviousYearMinutes + $summary->currentYearRecoveryMinutes;
-        $summary->weeks                        = array_map(
+
+        // Pass rttStartDate only if it falls within this exercise
+        if (null !== $this->rttStartDate) {
+            $startDate = new DateTimeImmutable($this->rttStartDate);
+            if ($startDate >= $periodFrom && $startDate <= $periodTo) {
+                $summary->rttStartDate = $this->rttStartDate;
+            }
+        }
+        $summary->weeks = array_map(
             static function (array $week) use ($currentByWeekStart) {
                 $detail = $currentByWeekStart[$week['start']->format('Y-m-d')] ?? new WeekRecoveryDetail();