diff --git a/app/Console/Commands/SyncStripePlans.php b/app/Console/Commands/SyncStripePlans.php
index 7016dd4f..bb04b55e 100644
--- a/app/Console/Commands/SyncStripePlans.php
+++ b/app/Console/Commands/SyncStripePlans.php
@@ -36,7 +36,20 @@ class SyncStripePlans extends Command
 
         foreach (Plan::query()->active()->get() as $plan) {
             if ($plan->stripe_product_id && $plan->stripe_price_id_monthly && $plan->stripe_price_id_yearly) {
-                $this->line("{$plan->slug}: vollständig verknüpft, übersprungen.");
+                // Preise sind unveränderlich, der Produktname nicht: Er wird
+                // bei jedem Lauf nachgezogen, damit Stripe-Belege den
+                // sprechenden Namen tragen (statt z. B. nur "Starter").
+                if ($dryRun) {
+                    $this->line("[dry-run] {$plan->slug}: verknüpft — Produktname auf \"{$this->stripeProductName($plan)}\" aktualisieren.");
+
+                    continue;
+                }
+
+                $stripe->products->update($plan->stripe_product_id, [
+                    'name' => $this->stripeProductName($plan),
+                ]);
+
+                $this->line("{$plan->slug}: verknüpft — Produktname aktualisiert.");
 
                 continue;
             }
@@ -56,7 +69,7 @@ class SyncStripePlans extends Command
 
             if (! $productId) {
                 $product = $stripe->products->create([
-                    'name' => $plan->name,
+                    'name' => $this->stripeProductName($plan),
                     'metadata' => ['plan_slug' => $plan->slug],
                 ]);
                 $productId = $product->id;
@@ -124,6 +137,19 @@ class SyncStripePlans extends Command
         $this->warn("Bitte in die .env eintragen: STRIPE_PRICE_SINGLE_PM={$price->id}");
     }
 
+    /**
+     * Sprechender Produktname für Stripe-Belege: Auf Rechnung und
+     * Checkout-Seite erscheint sonst nur der nackte Tarifname.
+     */
+    private function stripeProductName(Plan $plan): string
+    {
+        return sprintf(
+            'Tarif %s — %d Pressemitteilungen/Monat (pressekonto)',
+            $plan->name,
+            $plan->press_release_quota,
+        );
+    }
+
     private function createPrice(object $stripe, string $productId, Plan $plan, int $unitAmount, string $interval): string
     {
         $price = $stripe->prices->create([
diff --git a/app/Models/User.php b/app/Models/User.php
index ba35f94b..9609486c 100644
--- a/app/Models/User.php
+++ b/app/Models/User.php
@@ -123,6 +123,18 @@ class User extends Authenticatable implements MustVerifyEmail
         return $address?->company ?: ($address?->name ?: $this->name);
     }
 
+    /**
+     * Sprache für Stripe-Belege (Cashier-Hook): Rechnungen, Quittungen und
+     * Mahn-Mails von Stripe folgen der Kontosprache statt Stripes
+     * Englisch-Default.
+     *
+     * @return array<int, string>
+     */
+    public function stripePreferredLocales(): ?array
+    {
+        return [$this->language === 'en' ? 'en' : 'de-DE'];
+    }
+
     /**
      * Buchungs-Voraussetzung (Entscheidung 12.06.2026): Tarif- und
      * Einzel-PM-Checkouts erfordern eine vollständige Rechnungsadresse.
diff --git a/app/Services/Billing/StripeCheckoutService.php b/app/Services/Billing/StripeCheckoutService.php
index 3d6d3c05..4956aefa 100644
--- a/app/Services/Billing/StripeCheckoutService.php
+++ b/app/Services/Billing/StripeCheckoutService.php
@@ -348,6 +348,8 @@ class StripeCheckoutService
             'cancel_url' => route('me.bookings.index', ['checkout' => 'abbruch']),
             'billing_address_collection' => 'auto',
             'automatic_tax' => ['enabled' => true],
+            // Checkout-Seite in der Kontosprache statt Browser-Erkennung.
+            'locale' => $user->language === 'en' ? 'en' : 'de',
         ];
 
         if ($user->stripeAddress() === null) {
diff --git a/tests/Feature/Billing/StripeCustomerHooksTest.php b/tests/Feature/Billing/StripeCustomerHooksTest.php
index 50bb4339..2e0c14fa 100644
--- a/tests/Feature/Billing/StripeCustomerHooksTest.php
+++ b/tests/Feature/Billing/StripeCustomerHooksTest.php
@@ -31,6 +31,15 @@ test('the stripe recipient name falls back to the billing name, then the display
     expect($withoutAddress->stripeName())->toBe('Nur Anzeigename');
 });
 
+test('the stripe locale follows the account language', function () {
+    // Steuert die Sprache der Stripe-Belege (Rechnung, Quittung, Mahnung).
+    $german = User::factory()->create(['language' => 'de']);
+    $english = User::factory()->create(['language' => 'en']);
+
+    expect($german->stripePreferredLocales())->toBe(['de-DE'])
+        ->and($english->stripePreferredLocales())->toBe(['en']);
+});
+
 test('the stripe address mirrors the billing address', function () {
     $user = User::factory()->create();
     BillingAddress::factory()->create([