diff --git a/src/app/(dashboard)/dashboard/usage/components/ProviderLimits/QuotaCard.tsx b/src/app/(dashboard)/dashboard/usage/components/ProviderLimits/QuotaCard.tsx
index 09bdfe91e2..8384840b0b 100644
--- a/src/app/(dashboard)/dashboard/usage/components/ProviderLimits/QuotaCard.tsx
+++ b/src/app/(dashboard)/dashboard/usage/components/ProviderLimits/QuotaCard.tsx
@@ -30,6 +30,8 @@ interface QuotaCardProps {
   providerLabel: string;
   onRefresh: () => void;
   onOpenCutoff: () => void;
+  onToggleActive: (nextActive: boolean) => void;
+  togglingActive: boolean;
 }
 
 export default function QuotaCard({
@@ -42,7 +44,10 @@ export default function QuotaCard({
   providerLabel,
   onRefresh,
   onOpenCutoff,
+  onToggleActive,
+  togglingActive,
 }: QuotaCardProps) {
+  const isActive = connection.isActive ?? true;
   const quotas = quota?.quotas ?? [];
   const cardStatus = useMemo<CardStatus>(() => worstStatus(quotas), [quotas]);
   const tierMeta = useMemo(
@@ -66,7 +71,7 @@ export default function QuotaCard({
   return (
     <Card
       padding="none"
-      className="flex flex-col overflow-hidden"
+      className={`flex flex-col overflow-hidden transition-opacity ${isActive ? "" : "opacity-60"}`}
       style={{ borderLeft: `3px solid ${STATUS_BORDER[cardStatus]}` }}
     >
       <QuotaCardHeader
@@ -81,6 +86,8 @@ export default function QuotaCard({
         onRefresh={onRefresh}
         onOpenCutoff={onOpenCutoff}
         hasCutoffOverrides={hasOverrides}
+        onToggleActive={onToggleActive}
+        togglingActive={togglingActive}
       />
       <QuotaCardExpanded
         quotas={quotas}
diff --git a/src/app/(dashboard)/dashboard/usage/components/ProviderLimits/QuotaCardGrid.tsx b/src/app/(dashboard)/dashboard/usage/components/ProviderLimits/QuotaCardGrid.tsx
index 7406e0ad77..ea61c1f3b9 100644
--- a/src/app/(dashboard)/dashboard/usage/components/ProviderLimits/QuotaCardGrid.tsx
+++ b/src/app/(dashboard)/dashboard/usage/components/ProviderLimits/QuotaCardGrid.tsx
@@ -12,6 +12,8 @@ interface Props {
   providerLabels: Record<string, string>;
   onRefresh: (id: string, provider: string) => void;
   onOpenCutoff: (connection: any) => void;
+  onToggleActive: (id: string, nextActive: boolean) => void;
+  togglingActiveId: string | null;
 }
 
 export default function QuotaCardGrid({
@@ -24,6 +26,8 @@ export default function QuotaCardGrid({
   providerLabels,
   onRefresh,
   onOpenCutoff,
+  onToggleActive,
+  togglingActiveId,
 }: Props) {
   if (connections.length === 0) return null;
 
@@ -58,6 +62,8 @@ export default function QuotaCardGrid({
                 providerLabel={providerLabels[conn.provider] || conn.provider}
                 onRefresh={() => onRefresh(conn.id, conn.provider)}
                 onOpenCutoff={() => onOpenCutoff(conn)}
+                onToggleActive={(nextActive) => onToggleActive(conn.id, nextActive)}
+                togglingActive={togglingActiveId === conn.id}
               />
             ))}
           </div>
diff --git a/src/app/(dashboard)/dashboard/usage/components/ProviderLimits/index.tsx b/src/app/(dashboard)/dashboard/usage/components/ProviderLimits/index.tsx
index 968c189fe9..fc13c6578d 100644
--- a/src/app/(dashboard)/dashboard/usage/components/ProviderLimits/index.tsx
+++ b/src/app/(dashboard)/dashboard/usage/components/ProviderLimits/index.tsx
@@ -16,6 +16,7 @@ import { CardSkeleton } from "@/shared/components/Loading";
 import { USAGE_SUPPORTED_PROVIDERS } from "@/shared/constants/providers";
 import { pickDisplayValue } from "@/shared/utils/maskEmail";
 import useEmailPrivacyStore from "@/store/emailPrivacyStore";
+import { useNotificationStore } from "@/store/notificationStore";
 import EmailPrivacyToggle from "@/shared/components/EmailPrivacyToggle";
 import QuotaCutoffModal from "./QuotaCutoffModal";
 import QuotaCardGrid from "./QuotaCardGrid";
@@ -233,7 +234,9 @@ export default function ProviderLimits({
     [t]
   );
   const emailsVisible = useEmailPrivacyStore((s) => s.emailsVisible);
+  const notify = useNotificationStore();
   const [connections, setConnections] = useState<any[]>([]);
+  const [togglingActiveId, setTogglingActiveId] = useState<string | null>(null);
   const [quotaData, setQuotaData] = useState<Record<string, any>>({});
   const [loading, setLoading] = useState<Record<string, boolean>>({});
   const [errors, setErrors] = useState<Record<string, string | null>>({});
@@ -321,6 +324,36 @@ export default function ProviderLimits({
     }
   }, []);
 
+  // Toggle a connection's active state straight from the quota overview, so an
+  // operator can park an account that is being routed to despite low quota.
+  // Mirrors saveQuotaWindowThresholds: PUT /api/providers/[id] + optimistic state.
+  const handleToggleActive = useCallback(
+    async (connectionId: string, nextActive: boolean) => {
+      setTogglingActiveId(connectionId);
+      try {
+        const res = await fetch(`/api/providers/${connectionId}`, {
+          method: "PUT",
+          headers: { "Content-Type": "application/json" },
+          body: JSON.stringify({ isActive: nextActive }),
+        });
+        if (!res.ok) throw new Error(`HTTP ${res.status}`);
+        setConnections((prev) =>
+          prev.map((c) => (c.id === connectionId ? { ...c, isActive: nextActive } : c))
+        );
+        notify.success(
+          nextActive
+            ? tr("accountActivated", "Account activated")
+            : tr("accountDeactivated", "Account deactivated")
+        );
+      } catch {
+        notify.error(tr("toggleActiveFailed", "Failed to update account status"));
+      } finally {
+        setTogglingActiveId(null);
+      }
+    },
+    [notify, tr]
+  );
+
   const applyCachedQuotaState = useCallback(
     (connectionList: any[], caches: Record<string, any>) => {
       const nextQuotaData: Record<string, any> = {};
@@ -985,6 +1018,8 @@ export default function ProviderLimits({
             setCutoffModalWindows(windows);
             setCutoffModalConn(conn);
           }}
+          onToggleActive={handleToggleActive}
+          togglingActiveId={togglingActiveId}
         />
       </div>
 
diff --git a/src/app/(dashboard)/dashboard/usage/components/ProviderLimits/parts/QuotaCardHeader.tsx b/src/app/(dashboard)/dashboard/usage/components/ProviderLimits/parts/QuotaCardHeader.tsx
index 2b3cf96acb..a76a99063c 100644
--- a/src/app/(dashboard)/dashboard/usage/components/ProviderLimits/parts/QuotaCardHeader.tsx
+++ b/src/app/(dashboard)/dashboard/usage/components/ProviderLimits/parts/QuotaCardHeader.tsx
@@ -20,6 +20,10 @@ interface Props {
   onRefresh: () => void;
   onOpenCutoff: () => void;
   hasCutoffOverrides: boolean;
+  /** Toggle the connection's active state (routing on/off). */
+  onToggleActive: (nextActive: boolean) => void;
+  /** True while the active-state PUT is in flight. */
+  togglingActive: boolean;
 }
 
 export default function QuotaCardHeader({
@@ -34,8 +38,14 @@ export default function QuotaCardHeader({
   onRefresh,
   onOpenCutoff,
   hasCutoffOverrides,
+  onToggleActive,
+  togglingActive,
 }: Props) {
   const t = useTranslations("usage");
+  const isActive = connection.isActive ?? true;
+  const toggleActiveLabel = isActive
+    ? translateUsageOrFallback(t, "deactivateAccount", "Deactivate account (stop routing)")
+    : translateUsageOrFallback(t, "activateAccount", "Activate account (resume routing)");
   const accountName = pickDisplayValue(
     [connection.name, connection.displayName, connection.email],
     emailsVisible,
@@ -59,9 +69,7 @@ export default function QuotaCardHeader({
           time: tokenCountdown,
         })
       : translateUsageOrFallback(t, "tokenExpired", "Token expired");
-  const tokenExpiryTitle = hasTokenExpiry
-    ? new Date(tokenExpiryMs).toLocaleString()
-    : undefined;
+  const tokenExpiryTitle = hasTokenExpiry ? new Date(tokenExpiryMs).toLocaleString() : undefined;
 
   return (
     <div className="flex items-start justify-between gap-2 px-3 pt-2.5 pb-1.5">
@@ -118,6 +126,24 @@ export default function QuotaCardHeader({
         </div>
       </div>
       <div className="flex items-center gap-0.5 shrink-0">
+        <button
+          type="button"
+          disabled={togglingActive}
+          onClick={(e) => {
+            e.stopPropagation();
+            if (togglingActive) return;
+            onToggleActive(!isActive);
+          }}
+          title={toggleActiveLabel}
+          aria-label={toggleActiveLabel}
+          className={`p-1 rounded-md cursor-pointer transition-colors hover:bg-black/[0.04] dark:hover:bg-white/[0.04] disabled:opacity-40 disabled:cursor-not-allowed ${
+            isActive ? "text-text-muted" : "text-rose-500"
+          }`}
+        >
+          <span className="material-symbols-outlined text-[14px]">
+            {isActive ? "toggle_on" : "toggle_off"}
+          </span>
+        </button>
         <button
           type="button"
           onClick={(e) => {
diff --git a/src/i18n/messages/en.json b/src/i18n/messages/en.json
index fc986794f2..3e9c89455e 100644
--- a/src/i18n/messages/en.json
+++ b/src/i18n/messages/en.json
@@ -1325,7 +1325,7 @@
       "settings.update_failed": "Settings Update Failed",
       "sync.token.created": "Sync Token Created",
       "sync.token.revoked": "Sync Token Revoked"
-  }
+    }
   },
   "themesPage": {
     "title": "Themes",
@@ -6585,6 +6585,11 @@
     "quotaCutoffsButtonDefault": "Default",
     "quotaCutoffsButtonHelp": "Edit minimum remaining quota cutoffs for this account.",
     "quotaCutoffsButtonDisabled": "No quota windows are available for this account yet.",
+    "deactivateAccount": "Deactivate account (stop routing)",
+    "activateAccount": "Activate account (resume routing)",
+    "accountActivated": "Account activated",
+    "accountDeactivated": "Account deactivated",
+    "toggleActiveFailed": "Failed to update account status",
     "quotaCutoffsTitle": "Quota cutoffs for {name} ({provider})",
     "quotaCutoffsExplainer": "Override the minimum remaining quota percentage where this account stops being selected for each quota window. Leave blank to inherit the provider default.",
     "quotaCutoffsDefaultHint": "Default min remaining: {default}%",
diff --git a/src/i18n/messages/pt-BR.json b/src/i18n/messages/pt-BR.json
index 5a8c0a38b7..f284115983 100644
--- a/src/i18n/messages/pt-BR.json
+++ b/src/i18n/messages/pt-BR.json
@@ -7846,6 +7846,11 @@
     "quotaCutoffsButtonDefault": "Padrão",
     "quotaCutoffsButtonHelp": "Edite os limites mínimos de cota restantes para esta conta.",
     "quotaCutoffsButtonDisabled": "Ainda não há janelas de cota disponíveis para esta conta.",
+    "deactivateAccount": "Desativar conta (parar roteamento)",
+    "activateAccount": "Ativar conta (retomar roteamento)",
+    "accountActivated": "Conta ativada",
+    "accountDeactivated": "Conta desativada",
+    "toggleActiveFailed": "Falha ao atualizar o status da conta",
     "quotaCutoffsTitle": "Limites de cota para {name} ({provider})",
     "quotaCutoffsExplainer": "Substitua a porcentagem mínima de cota restante onde esta conta deixa de ser selecionada para cada janela de cota. Deixe em branco para herdar o padrão do provedor.",
     "quotaCutoffsDefaultHint": "Minuto restante padrão: {default}%",
diff --git a/tests/unit/quota-deactivate-toggle.test.ts b/tests/unit/quota-deactivate-toggle.test.ts
new file mode 100644
index 0000000000..50de83a3b0
--- /dev/null
+++ b/tests/unit/quota-deactivate-toggle.test.ts
@@ -0,0 +1,83 @@
+/**
+ * Quota overview gains a per-account deactivate/activate toggle, so an operator
+ * can park an account that is still being routed to despite low quota. The
+ * toggle reuses PUT /api/providers/[id] with { isActive } and dims the card when
+ * the account is inactive. Validated by asserting the wiring in the component
+ * sources (same lightweight approach as quota-token-expiry-display.test.ts).
+ */
+import test from "node:test";
+import assert from "node:assert/strict";
+import fs from "node:fs";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+const repoRoot = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "../..");
+const base = "src/app/(dashboard)/dashboard/usage/components/ProviderLimits";
+const read = (rel: string) => fs.readFileSync(path.join(repoRoot, base, rel), "utf8");
+
+const header = read("parts/QuotaCardHeader.tsx");
+const card = read("QuotaCard.tsx");
+const grid = read("QuotaCardGrid.tsx");
+const index = read("index.tsx");
+
+test("QuotaCardHeader renders a toggle that flips the current active state", () => {
+  assert.match(header, /onToggleActive:\s*\(nextActive: boolean\)\s*=>\s*void/);
+  assert.match(header, /const isActive = connection\.isActive \?\? true/);
+  assert.match(header, /onToggleActive\(!isActive\)/, "click must flip the current state");
+  assert.match(header, /toggle_on/, "active state icon");
+  assert.match(header, /toggle_off/, "inactive state icon");
+  assert.match(header, /disabled=\{togglingActive\}/, "disabled while the PUT is in flight");
+});
+
+test("QuotaCard dims the card and threads the toggle props through", () => {
+  assert.match(card, /const isActive = connection\.isActive \?\? true/);
+  assert.match(card, /opacity-60/, "inactive accounts are visually dimmed");
+  assert.match(card, /onToggleActive=\{onToggleActive\}/);
+  assert.match(card, /togglingActive=\{togglingActive\}/);
+});
+
+test("QuotaCardGrid forwards the per-connection toggle handler and busy id", () => {
+  assert.match(grid, /onToggleActive:\s*\(id: string, nextActive: boolean\)\s*=>\s*void/);
+  assert.match(
+    grid,
+    /onToggleActive=\{\(nextActive\)\s*=>\s*onToggleActive\(conn\.id, nextActive\)\}/
+  );
+  assert.match(grid, /togglingActive=\{togglingActiveId === conn\.id\}/);
+});
+
+test("index handleToggleActive PUTs isActive, updates state and notifies", () => {
+  assert.match(index, /const handleToggleActive = useCallback\(/);
+  assert.match(
+    index,
+    /fetch\(`\/api\/providers\/\$\{connectionId\}`,\s*\{[\s\S]*method:\s*"PUT"[\s\S]*isActive: nextActive/,
+    "must PUT { isActive } to the per-connection route"
+  );
+  assert.match(
+    index,
+    /c\.id === connectionId \? \{ \.\.\.c, isActive: nextActive \} : c/,
+    "must optimistically update local connection state"
+  );
+  assert.match(
+    index,
+    /onToggleActive=\{handleToggleActive\}/,
+    "must wire the handler into the grid"
+  );
+  assert.match(index, /togglingActiveId=\{togglingActiveId\}/);
+});
+
+test("toggle i18n keys exist in en and pt-BR", () => {
+  for (const locale of ["en", "pt-BR"]) {
+    const msgs = JSON.parse(
+      fs.readFileSync(path.join(repoRoot, `src/i18n/messages/${locale}.json`), "utf8")
+    );
+    for (const key of [
+      "deactivateAccount",
+      "activateAccount",
+      "accountActivated",
+      "accountDeactivated",
+      "toggleActiveFailed",
+    ]) {
+      assert.ok(msgs.usage?.[key], `${locale}: usage.${key} must exist`);
+    }
+  }
+});