diff --git a/src/components/PromoDiscountBadge.tsx b/src/components/PromoDiscountBadge.tsx
index 519eca9..16301d0 100644
--- a/src/components/PromoDiscountBadge.tsx
+++ b/src/components/PromoDiscountBadge.tsx
@@ -1,6 +1,7 @@
-import { useState, useRef, useEffect } from 'react';
-import { useQuery } from '@tanstack/react-query';
+import { useState, useRef, useEffect, useCallback } from 'react';
+import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
 import { useNavigate } from 'react-router-dom';
+import { createPortal } from 'react-dom';
 import { useTranslation } from 'react-i18next';
 import { promoApi } from '../api/promo';
 
@@ -30,6 +31,32 @@ const ClockIcon = () => (
   </svg>
 );
 
+const XCircleIcon = () => (
+  <svg className="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
+    <path
+      strokeLinecap="round"
+      strokeLinejoin="round"
+      d="M9.75 9.75l4.5 4.5m0-4.5l-4.5 4.5M21 12a9 9 0 11-18 0 9 9 0 0118 0z"
+    />
+  </svg>
+);
+
+const WarningIcon = () => (
+  <svg
+    className="h-12 w-12"
+    fill="none"
+    viewBox="0 0 24 24"
+    stroke="currentColor"
+    strokeWidth={1.5}
+  >
+    <path
+      strokeLinecap="round"
+      strokeLinejoin="round"
+      d="M12 9v3.75m-9.303 3.376c-.866 1.5.217 3.374 1.948 3.374h14.71c1.73 0 2.813-1.874 1.948-3.374L13.949 3.378c-.866-1.5-3.032-1.5-3.898 0L2.697 16.126zM12 15.75h.007v.008H12v-.008z"
+    />
+  </svg>
+);
+
 const formatTimeLeft = (expiresAt: string, t: (key: string) => string): string => {
   const now = new Date();
   // Ensure UTC parsing - if no timezone specified, assume UTC
@@ -57,10 +84,133 @@ const formatTimeLeft = (expiresAt: string, t: (key: string) => string): string =
   return `${minutes}${t('promo.time.minutes')}`;
 };
 
+// ------- Confirmation Modal -------
+
+interface DeactivateConfirmModalProps {
+  isOpen: boolean;
+  discountPercent: number;
+  isDeactivating: boolean;
+  onConfirm: () => void;
+  onCancel: () => void;
+}
+
+function DeactivateConfirmModal({
+  isOpen,
+  discountPercent,
+  isDeactivating,
+  onConfirm,
+  onCancel,
+}: DeactivateConfirmModalProps) {
+  const { t } = useTranslation();
+
+  // Escape key to close
+  useEffect(() => {
+    if (!isOpen) return;
+
+    const handleKeyDown = (e: KeyboardEvent) => {
+      if (e.key === 'Escape' && !isDeactivating) {
+        e.preventDefault();
+        onCancel();
+      }
+    };
+
+    document.addEventListener('keydown', handleKeyDown);
+    return () => document.removeEventListener('keydown', handleKeyDown);
+  }, [isOpen, isDeactivating, onCancel]);
+
+  // Scroll lock
+  useEffect(() => {
+    if (!isOpen) return;
+
+    document.body.style.overflow = 'hidden';
+    return () => {
+      document.body.style.overflow = '';
+    };
+  }, [isOpen]);
+
+  if (!isOpen) return null;
+
+  const modalContent = (
+    <div
+      className="fixed inset-0 z-[100] flex items-center justify-center"
+      role="dialog"
+      aria-modal="true"
+      aria-labelledby="deactivate-modal-title"
+    >
+      {/* Backdrop */}
+      <div
+        className="absolute inset-0 bg-black/70 backdrop-blur-sm"
+        onClick={isDeactivating ? undefined : onCancel}
+      />
+
+      {/* Modal */}
+      <div
+        className="relative mx-4 w-full max-w-sm overflow-hidden rounded-2xl border border-dark-700/50 bg-dark-900 shadow-2xl"
+        onClick={(e) => e.stopPropagation()}
+      >
+        {/* Warning header */}
+        <div className="flex flex-col items-center bg-gradient-to-br from-warning-500/20 to-red-500/20 px-6 pb-6 pt-8">
+          <div className="mb-3 text-warning-400">
+            <WarningIcon />
+          </div>
+          <h2 id="deactivate-modal-title" className="text-center text-lg font-bold text-dark-100">
+            {t('promo.deactivate.confirmTitle')}
+          </h2>
+          <p className="mt-2 text-center text-sm text-dark-300">
+            {t('promo.deactivate.confirmDescription', { percent: discountPercent })}
+          </p>
+        </div>
+
+        {/* Warning text */}
+        <div className="px-6 py-4">
+          <div className="rounded-lg border border-warning-500/20 bg-warning-500/10 px-4 py-3">
+            <p className="text-center text-sm text-warning-400">{t('promo.deactivate.warning')}</p>
+          </div>
+        </div>
+
+        {/* Action buttons */}
+        <div className="flex gap-3 px-6 pb-6">
+          <button
+            onClick={onCancel}
+            disabled={isDeactivating}
+            className="flex-1 rounded-xl bg-dark-800 py-3 font-semibold text-dark-300 transition-colors hover:bg-dark-700 hover:text-dark-100 disabled:opacity-50"
+          >
+            {t('common.cancel')}
+          </button>
+          <button
+            onClick={onConfirm}
+            disabled={isDeactivating}
+            className="flex-1 rounded-xl bg-gradient-to-r from-red-500 to-red-600 py-3 font-semibold text-white shadow-lg shadow-red-500/25 transition-all hover:from-red-400 hover:to-red-500 active:from-red-600 active:to-red-700 disabled:opacity-50"
+          >
+            {isDeactivating ? (
+              <span className="flex items-center justify-center gap-2">
+                <span className="h-4 w-4 animate-spin rounded-full border-2 border-white/30 border-t-white" />
+                {t('promo.deactivate.deactivating')}
+              </span>
+            ) : (
+              t('promo.deactivate.confirm')
+            )}
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+
+  if (typeof document !== 'undefined') {
+    return createPortal(modalContent, document.body);
+  }
+  return modalContent;
+}
+
+// ------- Main Component -------
+
 export default function PromoDiscountBadge() {
   const { t } = useTranslation();
   const navigate = useNavigate();
+  const queryClient = useQueryClient();
   const [isOpen, setIsOpen] = useState(false);
+  const [showConfirmModal, setShowConfirmModal] = useState(false);
+  const [deactivateError, setDeactivateError] = useState<string | null>(null);
   const dropdownRef = useRef<HTMLDivElement>(null);
 
   const { data: activeDiscount } = useQuery({
@@ -70,6 +220,35 @@ export default function PromoDiscountBadge() {
     refetchInterval: 60000, // Refresh every minute
   });
 
+  const deactivateMutation = useMutation({
+    mutationFn: promoApi.deactivateDiscount,
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['active-discount'] });
+      queryClient.invalidateQueries({ queryKey: ['promo-offers'] });
+      queryClient.invalidateQueries({ queryKey: ['subscription'] });
+      queryClient.invalidateQueries({ queryKey: ['purchase-options'] });
+      setShowConfirmModal(false);
+      setIsOpen(false);
+      setDeactivateError(null);
+    },
+    onError: (error: unknown) => {
+      const axiosErr = error as { response?: { data?: { detail?: string } } };
+      setDeactivateError(axiosErr.response?.data?.detail || t('promo.deactivate.error'));
+    },
+  });
+
+  const handleCloseConfirmModal = useCallback(() => {
+    if (!deactivateMutation.isPending) {
+      setShowConfirmModal(false);
+      setDeactivateError(null);
+    }
+  }, [deactivateMutation.isPending]);
+
+  const handleConfirmDeactivate = useCallback(() => {
+    setDeactivateError(null);
+    deactivateMutation.mutate();
+  }, [deactivateMutation]);
+
   // Close dropdown on click outside
   useEffect(() => {
     function handleClickOutside(event: MouseEvent) {
@@ -97,70 +276,103 @@ export default function PromoDiscountBadge() {
     navigate('/subscription');
   };
 
+  const handleDeactivateClick = () => {
+    setDeactivateError(null);
+    setShowConfirmModal(true);
+  };
+
   return (
-    <div className="relative" ref={dropdownRef}>
-      {/* Badge button */}
-      <button
-        onClick={handleClick}
-        className="group relative flex items-center gap-1 rounded-lg bg-success-500/15 px-2.5 py-1.5 transition-all hover:bg-success-500/25"
-        title={t('promo.activeDiscount', 'Active discount')}
-      >
-        <span className="text-sm font-bold text-success-400">
-          -{activeDiscount.discount_percent}%
-        </span>
-      </button>
+    <>
+      <div className="relative" ref={dropdownRef}>
+        {/* Badge button */}
+        <button
+          onClick={handleClick}
+          className="group relative flex items-center gap-1 rounded-lg bg-success-500/15 px-2.5 py-1.5 transition-all hover:bg-success-500/25"
+          title={t('promo.activeDiscount', 'Active discount')}
+        >
+          <span className="text-sm font-bold text-success-400">
+            -{activeDiscount.discount_percent}%
+          </span>
+        </button>
 
-      {/* Dropdown - mobile: fixed centered, desktop: absolute right */}
-      {isOpen && (
-        <>
-          {/* Mobile backdrop */}
-          <div
-            className="fixed inset-0 z-40 bg-black/30 sm:hidden"
-            onClick={() => setIsOpen(false)}
-          />
+        {/* Dropdown - mobile: fixed centered, desktop: absolute right */}
+        {isOpen && (
+          <>
+            {/* Mobile backdrop */}
+            <div
+              className="fixed inset-0 z-40 bg-black/30 sm:hidden"
+              onClick={() => setIsOpen(false)}
+            />
 
-          <div className="fixed left-4 right-4 top-20 z-50 animate-fade-in overflow-hidden rounded-xl border border-dark-700/50 bg-dark-800 shadow-xl sm:absolute sm:left-auto sm:right-0 sm:top-auto sm:mt-2 sm:w-72">
-            {/* Header */}
-            <div className="border-b border-dark-700/50 bg-gradient-to-r from-success-500/20 to-accent-500/20 p-4">
-              <div className="flex items-center gap-3">
-                <div className="flex h-10 w-10 items-center justify-center rounded-xl bg-success-500/20 text-success-400">
-                  <SparklesIcon />
-                </div>
-                <div>
-                  <div className="font-semibold text-dark-100">{t('promo.discountActive')}</div>
-                  <div className="text-2xl font-bold text-success-400">
-                    -{activeDiscount.discount_percent}%
+            <div className="fixed left-4 right-4 top-20 z-50 animate-fade-in overflow-hidden rounded-xl border border-dark-700/50 bg-dark-800 shadow-xl sm:absolute sm:left-auto sm:right-0 sm:top-auto sm:mt-2 sm:w-72">
+              {/* Header */}
+              <div className="border-b border-dark-700/50 bg-gradient-to-r from-success-500/20 to-accent-500/20 p-4">
+                <div className="flex items-center gap-3">
+                  <div className="flex h-10 w-10 items-center justify-center rounded-xl bg-success-500/20 text-success-400">
+                    <SparklesIcon />
+                  </div>
+                  <div>
+                    <div className="font-semibold text-dark-100">{t('promo.discountActive')}</div>
+                    <div className="text-2xl font-bold text-success-400">
+                      -{activeDiscount.discount_percent}%
+                    </div>
                   </div>
                 </div>
               </div>
+
+              {/* Content */}
+              <div className="space-y-3 p-4">
+                <p className="text-sm text-dark-300">{t('promo.discountDescription')}</p>
+
+                {/* Time remaining */}
+                {timeLeft && (
+                  <div className="flex items-center gap-2 rounded-lg bg-dark-900/50 px-3 py-2 text-sm text-dark-400">
+                    <ClockIcon />
+                    <span>
+                      {t('promo.expiresIn')}:{' '}
+                      <span className="font-medium text-warning-400">{timeLeft}</span>
+                    </span>
+                  </div>
+                )}
+
+                {/* Deactivation error */}
+                {deactivateError && (
+                  <div className="rounded-lg border border-red-500/30 bg-red-500/10 px-3 py-2 text-sm text-red-400">
+                    {deactivateError}
+                  </div>
+                )}
+
+                {/* CTA Button */}
+                <button
+                  onClick={handleGoToSubscription}
+                  className="btn-primary w-full py-2.5 text-sm font-medium"
+                >
+                  {t('promo.useNow')}
+                </button>
+
+                {/* Deactivate Button */}
+                <button
+                  onClick={handleDeactivateClick}
+                  className="flex w-full items-center justify-center gap-1.5 rounded-lg border border-dark-600/50 bg-dark-900/50 py-2 text-sm text-dark-400 transition-colors hover:border-red-500/30 hover:bg-red-500/10 hover:text-red-400"
+                  aria-label={t('promo.deactivate.button')}
+                >
+                  <XCircleIcon />
+                  <span>{t('promo.deactivate.button')}</span>
+                </button>
+              </div>
             </div>
+          </>
+        )}
+      </div>
 
-            {/* Content */}
-            <div className="space-y-3 p-4">
-              <p className="text-sm text-dark-300">{t('promo.discountDescription')}</p>
-
-              {/* Time remaining */}
-              {timeLeft && (
-                <div className="flex items-center gap-2 rounded-lg bg-dark-900/50 px-3 py-2 text-sm text-dark-400">
-                  <ClockIcon />
-                  <span>
-                    {t('promo.expiresIn')}:{' '}
-                    <span className="font-medium text-warning-400">{timeLeft}</span>
-                  </span>
-                </div>
-              )}
-
-              {/* CTA Button */}
-              <button
-                onClick={handleGoToSubscription}
-                className="btn-primary w-full py-2.5 text-sm font-medium"
-              >
-                {t('promo.useNow')}
-              </button>
-            </div>
-          </div>
-        </>
-      )}
-    </div>
+      {/* Deactivation Confirmation Modal */}
+      <DeactivateConfirmModal
+        isOpen={showConfirmModal}
+        discountPercent={activeDiscount.discount_percent}
+        isDeactivating={deactivateMutation.isPending}
+        onConfirm={handleConfirmDeactivate}
+        onCancel={handleCloseConfirmModal}
+      />
+    </>
   );
 }