diff --git a/frontend/src/components/PortalTokenCard.tsx b/frontend/src/components/PortalTokenCard.tsx
new file mode 100644
index 0000000..4c19008
--- /dev/null
+++ b/frontend/src/components/PortalTokenCard.tsx
@@ -0,0 +1,146 @@
+import { useEffect, useState } from 'react'
+import { api } from '../api/client'
+
+interface Status { configured: boolean; created_at: string | null }
+
+export function PortalTokenCard() {
+  const [status, setStatus] = useState<Status | null>(null)
+  const [plaintext, setPlaintext] = useState<string | null>(null)
+  const [busy, setBusy] = useState(false)
+  const [copied, setCopied] = useState(false)
+  const [error, setError] = useState<string | null>(null)
+
+  useEffect(() => {
+    api.get<Status>('/companies/me/portal-token').then(setStatus).catch(() => {})
+  }, [])
+
+  async function rotate() {
+    if (status?.configured && !confirm('Neuen Token generieren? Der bisherige Token wird sofort ungültig und das Buchhaltungsportal muss den neuen eintragen.')) return
+    setBusy(true)
+    setError(null)
+    try {
+      const res = await api.post<{ token: string; created_at: string }>('/companies/me/portal-token/rotate', {})
+      setPlaintext(res.token)
+      setStatus({ configured: true, created_at: res.created_at })
+      setCopied(false)
+    } catch (e: unknown) {
+      setError(e instanceof Error ? e.message : 'Fehler beim Generieren des Tokens')
+    } finally {
+      setBusy(false)
+    }
+  }
+
+  async function revoke() {
+    if (!confirm('Token wirklich deaktivieren? Das Buchhaltungsportal kann danach keine Summen mehr abrufen.')) return
+    setBusy(true)
+    setError(null)
+    try {
+      await api.del('/companies/me/portal-token')
+      setStatus({ configured: false, created_at: null })
+      setPlaintext(null)
+    } catch (e: unknown) {
+      setError(e instanceof Error ? e.message : 'Fehler beim Deaktivieren')
+    } finally {
+      setBusy(false)
+    }
+  }
+
+  async function copy() {
+    if (!plaintext) return
+    try {
+      await navigator.clipboard.writeText(plaintext)
+      setCopied(true)
+      setTimeout(() => setCopied(false), 2000)
+    } catch {
+      /* clipboard nicht verfügbar – User kann manuell markieren */
+    }
+  }
+
+  return (
+    <div className="bg-white rounded-xl shadow-sm border border-gray-200 p-6 space-y-5">
+      <div>
+        <h2 className="font-semibold text-gray-700">Buchhaltungsportal</h2>
+        <p className="text-xs text-gray-400 mt-0.5">
+          Das Buchhaltungsportal ruft Firmensummen zu Resturlaub und Überstunden via Bearer-Token ab (nur lesen, keine
+          Einzelwerte, keine Krankheitsdaten). Endpoint:{' '}
+          <code className="font-mono text-[11px] bg-gray-100 px-1 py-0.5 rounded">GET /api/v1/portal/summary</code>.
+        </p>
+      </div>
+
+      <details className="text-xs">
+        <summary className="cursor-pointer text-gray-500 hover:text-gray-700 select-none">
+          Test-Befehl anzeigen (curl)
+        </summary>
+        <div className="mt-2 rounded-lg bg-gray-900 text-gray-100 px-3 py-2 font-mono text-[11px] leading-relaxed whitespace-pre overflow-x-auto">
+          {`curl -H "Authorization: Bearer <TOKEN>" \\\n  ${window.location.origin}/api/v1/portal/summary`}
+        </div>
+      </details>
+
+      <div className="text-sm">
+        {status?.configured ? (
+          <div className="flex items-center gap-2 text-green-700">
+            <span className="inline-block w-2 h-2 rounded-full bg-green-500" />
+            <span>
+              Token aktiv
+              {status.created_at && (
+                <span className="text-gray-400 ml-1">
+                  (seit {new Date(status.created_at).toLocaleString('de-DE')})
+                </span>
+              )}
+            </span>
+          </div>
+        ) : (
+          <div className="flex items-center gap-2 text-gray-500">
+            <span className="inline-block w-2 h-2 rounded-full bg-gray-300" />
+            <span>Kein Token konfiguriert</span>
+          </div>
+        )}
+      </div>
+
+      {plaintext && (
+        <div className="rounded-lg border-2 border-amber-300 bg-amber-50 p-4 space-y-2">
+          <p className="text-xs font-semibold text-amber-800">⚠ Token jetzt kopieren – wird nur einmal angezeigt.</p>
+          <div className="flex items-stretch gap-2">
+            <input
+              type="text"
+              readOnly
+              value={plaintext}
+              onFocus={e => e.currentTarget.select()}
+              className="flex-1 font-mono text-xs px-3 py-2 border border-amber-300 rounded bg-white"
+            />
+            <button
+              onClick={copy}
+              className="px-3 py-2 bg-amber-600 text-white text-xs font-medium rounded hover:bg-amber-700"
+            >
+              {copied ? '✓ Kopiert' : 'Kopieren'}
+            </button>
+          </div>
+          <p className="text-xs text-amber-700">
+            Im Buchhaltungsportal unter timemaster eintragen (Adresse der Firma plus dieser Token).
+          </p>
+        </div>
+      )}
+
+      {error && <p className="text-sm text-red-600">{error}</p>}
+
+      <div className="flex flex-wrap items-center gap-3">
+        <button
+          onClick={rotate}
+          disabled={busy}
+          className="px-4 py-2 bg-blue-600 text-white text-sm font-medium rounded-lg hover:bg-blue-700 disabled:opacity-50"
+        >
+          {status?.configured ? 'Neuen Token generieren' : 'Token generieren'}
+        </button>
+        {status?.configured && (
+          <button
+            onClick={revoke}
+            disabled={busy}
+            className="px-4 py-2 bg-white border border-red-300 text-red-700 text-sm font-medium rounded-lg hover:bg-red-50 disabled:opacity-50"
+          >
+            Deaktivieren
+          </button>
+        )}
+      </div>
+    </div>
+  )
+}
diff --git a/frontend/src/pages/CompanySettingsPage.tsx b/frontend/src/pages/CompanySettingsPage.tsx
index 8ed5bb2..775174d 100644
--- a/frontend/src/pages/CompanySettingsPage.tsx
+++ b/frontend/src/pages/CompanySettingsPage.tsx
@@ -1,6 +1,7 @@
 import { useEffect, useState } from 'react'
 import { api } from '../api/client'
 import { Layout } from '../components/Layout'
+import { PortalTokenCard } from '../components/PortalTokenCard'
 
 interface UserOut {
   id: string; first_name: string; last_name: string; email: string; role: string
@@ -643,6 +644,8 @@ export function CompanySettingsPage() {
           </div>
         )}
 
+        {isAdmin && <PortalTokenCard />}
+
         {/* QR-Stempeln wurde in eine eigene Seite ausgelagert: /settings/qr-stamp */}
 
         {/* Mobile-Einstellungen */}