diff --git a/app/Domains/Event/Controllers/SignupController.php b/app/Domains/Event/Controllers/SignupController.php
index 7dbfefa..9de5ea7 100644
--- a/app/Domains/Event/Controllers/SignupController.php
+++ b/app/Domains/Event/Controllers/SignupController.php
@@ -12,6 +12,7 @@ use App\Providers\DoubleCheckEventRegistrationProvider;
 use App\Providers\InertiaProvider;
 use App\Resources\UserResource;
 use App\Scopes\CommonController;
+use App\ValueObjects\Amount;
 use DateTime;
 use Illuminate\Http\JsonResponse;
 use Illuminate\Http\Request;
@@ -194,7 +195,7 @@ class SignupController extends CommonController {
         $arrival = \DateTime::createFromFormat('Y-m-d', $request->input('arrival'));
         $departure = \DateTime::createFromFormat('Y-m-d', $request->input('departure'));
 
-        $amount = $event->calculateAmount(
+        $baseFee = $event->calculateAmount(
             $request->input('participationType'),
             $request->input('beitrag'),
             $arrival,
@@ -205,12 +206,27 @@ class SignupController extends CommonController {
         // Gewählte Zusätze immer einrechnen -- so enthält der finale Anzeigebetrag (und der Bestätigungstext)
         // stets die Addons und der Zahlungsschritt wird nur bei Gesamt 0 € übersprungen.
         $selectedAddonKeys = array_keys(array_filter((array)$request->input('addons', []), fn($v) => (bool)$v));
-        $amount->addAmount($event->resolveAddons($selectedAddonKeys, $arrival, $departure)['total']);
+        $resolution = $event->resolveAddons($selectedAddonKeys, $arrival, $departure);
+
+        // Gesamt = Teilnahmebeitrag + Zusätze; Basisbetrag separat für die Kostenübersicht in der Zusammenfassung.
+        $total = new Amount($baseFee->getAmount(), 'Euro');
+        $total->addAmount($resolution['total']);
+
+        $addonLines = array_map(fn($item) => [
+            'key' => $item['key'],
+            'title' => $item['title'],
+            'amountValue' => $item['amount'],
+            'amount' => new Amount($item['amount'], 'Euro')->toString(),
+            'free' => $item['amount'] <= 0,
+        ], $resolution['items']);
 
         // amountValue (numerisch) steuert im Frontend das Überspringen des Zahlungsart-Schritts bei 0 €.
         return response()->json([
-            'amount' => $amount->toString(),
-            'amountValue' => $amount->getAmount(),
+            'amount' => $total->toString(),
+            'amountValue' => $total->getAmount(),
+            'baseAmount' => $baseFee->toString(),
+            'baseAmountValue' => $baseFee->getAmount(),
+            'addons' => $addonLines,
         ]);
     }
 }
diff --git a/app/Domains/Event/Views/Partials/SignUpForm/SignupForm.vue b/app/Domains/Event/Views/Partials/SignUpForm/SignupForm.vue
index 80f4165..63f5f4c 100644
--- a/app/Domains/Event/Views/Partials/SignUpForm/SignupForm.vue
+++ b/app/Domains/Event/Views/Partials/SignUpForm/SignupForm.vue
@@ -24,7 +24,8 @@ const emit = defineEmits(['registrationDone'])
 
 const {
     currentStep, goToStep, formData, selectedAddons,
-    submit, submitting, submitResult, summaryLoading, summaryAmount, summaryAmountValue
+    submit, submitting, submitResult, summaryLoading, summaryAmount, summaryAmountValue,
+    summaryBaseAmount, summaryAddonLines
 } = useSignupForm(props.event, props.participantData)
 
 const steps = [
@@ -107,7 +108,8 @@ const steps = [
                     v-if="currentStep === 11"
                     :formData="formData"
                     :event="event"
-                    :selectedAddons="selectedAddons"
+                    :summaryBaseAmount="summaryBaseAmount"
+                    :summaryAddonLines="summaryAddonLines"
                     :summaryAmount="summaryAmount"
                     :summaryAmountValue="summaryAmountValue"
                     :summaryLoading="summaryLoading"
diff --git a/app/Domains/Event/Views/Partials/SignUpForm/composables/useSignupForm.js b/app/Domains/Event/Views/Partials/SignUpForm/composables/useSignupForm.js
index 7a0a709..a68615b 100644
--- a/app/Domains/Event/Views/Partials/SignUpForm/composables/useSignupForm.js
+++ b/app/Domains/Event/Views/Partials/SignUpForm/composables/useSignupForm.js
@@ -60,6 +60,8 @@ export function useSignupForm(event, participantData) {
 
     const summaryAmount = ref('')
     const summaryAmountValue = ref(0)
+    const summaryBaseAmount = ref('')
+    const summaryAddonLines = ref([])
 
     const fetchAmount = async () => {
         summaryLoading.value = true
@@ -77,6 +79,8 @@ export function useSignupForm(event, participantData) {
             })
             summaryAmount.value = res.data.amount
             summaryAmountValue.value = Number(res.data.amountValue ?? 0)
+            summaryBaseAmount.value = res.data.baseAmount ?? ''
+            summaryAddonLines.value = res.data.addons ?? []
         } finally {
             summaryLoading.value = false
         }
@@ -128,6 +132,8 @@ export function useSignupForm(event, participantData) {
         submitResult,
         summaryLoading,
         summaryAmount,
-        summaryAmountValue
+        summaryAmountValue,
+        summaryBaseAmount,
+        summaryAddonLines
     }
 }
diff --git a/app/Domains/Event/Views/Partials/SignUpForm/steps/StepSummary.vue b/app/Domains/Event/Views/Partials/SignUpForm/steps/StepSummary.vue
index e5c985e..ed6f5f3 100644
--- a/app/Domains/Event/Views/Partials/SignUpForm/steps/StepSummary.vue
+++ b/app/Domains/Event/Views/Partials/SignUpForm/steps/StepSummary.vue
@@ -7,7 +7,8 @@ const PAYMENT_ACCOUNT_TRANSACTION = 'PAYMENT_ACCOUNT_TRANSACTION'
 const props = defineProps({
     formData: Object,
     event: Object,
-    selectedAddons: {type: Object, default: () => ({})},
+    summaryBaseAmount: {type: String, default: ''},
+    summaryAddonLines: {type: Array, default: () => []},
     summaryAmount: String,
     summaryAmountValue: {type: Number, default: 0},
     summaryLoading: Boolean,
@@ -36,16 +37,6 @@ const paymentConfirmationText = computed(() => {
 // Zurück führt zur Zahlungsart (10), sofern dieser Schritt gezeigt wurde; bei 0 € direkt zu Allergien (9).
 const backTarget = computed(() => props.summaryAmountValue > 0 ? 10 : 9)
 
-// Gewählte Zusätze (Event-Addons) für die Zusammenfassung mit Preisanzeige.
-const selectedAddonList = computed(() =>
-    (props.event.addons ?? [])
-        .filter(addon => props.selectedAddons[addon.key])
-        .map(addon => ({
-            title: addon.title,
-            price: addon.free ? 'Kostenfrei' : (addon.priceReadable + (addon.flat ? '' : ' / Tag')),
-        }))
-)
-
 // Gewählte Teilnahmeoptionen für die Zusammenfassung (label statt value anzeigen).
 const selectedParticipationOptions = computed(() =>
     (props.event.participationOptions ?? []).map(question => {
@@ -140,11 +131,6 @@ function eatingHabit() {
                     <td>{{ option.value }}</td>
                 </tr>
 
-                <tr v-for="addon in selectedAddonList" :key="addon.title">
-                    <td>{{ addon.title }}:</td>
-                    <td>{{ addon.price }}</td>
-                </tr>
-
                 <tr>
                     <td>Foto-Erlaubnis:</td>
                     <td>
@@ -179,6 +165,22 @@ function eatingHabit() {
                 <tr><td>Abreise:</td><td>{{ formatDate(formData.departure) }}</td></tr>
             </table>
 
+            <h4 style="margin: 0 0 8px 0;">Kostenübersicht</h4>
+            <table class="form-table cost-table" style="margin-bottom: 20px;">
+                <tr>
+                    <td>Teilnahmebeitrag:</td>
+                    <td>{{ summaryBaseAmount }}</td>
+                </tr>
+                <tr v-for="addon in summaryAddonLines" :key="addon.key">
+                    <td>{{ addon.title }}:</td>
+                    <td>{{ addon.free ? 'Kostenfrei' : addon.amount }}</td>
+                </tr>
+                <tr class="cost-total">
+                    <td><strong>Gesamtbetrag:</strong></td>
+                    <td><strong>{{ summaryAmount }}</strong></td>
+                </tr>
+            </table>
+
             <div style="display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px;">
                 <label style="display: flex; gap: 10px; cursor: pointer;">
                     <input type="checkbox" v-model="formData.summary_information_correct" />
@@ -212,3 +214,10 @@ function eatingHabit() {
         </div>
     </div>
 </template>
+
+<style scoped>
+.cost-table .cost-total td {
+    border-top: 1px solid #d1d5db;
+    padding-top: 8px;
+}
+</style>