diff --git a/src/pages/Login.tsx b/src/pages/Login.tsx
index 90e7cdc..0bcfce7 100644
--- a/src/pages/Login.tsx
+++ b/src/pages/Login.tsx
@@ -1,5 +1,5 @@
 import { useState, useEffect, useMemo, useCallback } from 'react'
-import { useNavigate, useLocation } from 'react-router-dom'
+import { useNavigate, useLocation, useSearchParams } from 'react-router-dom'
 import { useTranslation } from 'react-i18next'
 import { useQuery } from '@tanstack/react-query'
 import { useAuthStore } from '../store/auth'
@@ -12,9 +12,18 @@ export default function Login() {
   const { t } = useTranslation()
   const navigate = useNavigate()
   const location = useLocation()
+  const [searchParams] = useSearchParams()
   const { isAuthenticated, loginWithTelegram, loginWithEmail, registerWithEmail } = useAuthStore()
-  const [activeTab, setActiveTab] = useState<'telegram' | 'email'>('telegram')
-  const [authMode, setAuthMode] = useState<'login' | 'register'>('login')
+
+  // Extract referral code from URL
+  const referralCode = searchParams.get('ref') || ''
+
+  const [activeTab, setActiveTab] = useState<'telegram' | 'email'>(() =>
+    referralCode ? 'email' : 'telegram'
+  )
+  const [authMode, setAuthMode] = useState<'login' | 'register'>(() =>
+    referralCode ? 'register' : 'login'
+  )
   const [email, setEmail] = useState('')
   const [password, setPassword] = useState('')
   const [confirmPassword, setConfirmPassword] = useState('')
@@ -126,7 +135,7 @@ export default function Login() {
       if (authMode === 'login') {
         await loginWithEmail(email, password)
       } else {
-        await registerWithEmail(email, password, firstName || undefined)
+        await registerWithEmail(email, password, firstName || undefined, referralCode || undefined)
       }
       navigate(getReturnUrl(), { replace: true })
     } catch (err: unknown) {
@@ -185,6 +194,18 @@ export default function Login() {
           <p className="mt-2 text-dark-400">
             {t('auth.loginSubtitle')}
           </p>
+
+          {/* Referral Banner */}
+          {referralCode && (
+            <div className="mt-4 p-3 rounded-xl bg-accent-500/10 border border-accent-500/30">
+              <div className="flex items-center gap-2 text-accent-400">
+                <svg className="w-5 h-5 flex-shrink-0" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={1.5}>
+                  <path strokeLinecap="round" strokeLinejoin="round" d="M15 19.128a9.38 9.38 0 002.625.372 9.337 9.337 0 004.121-.952 4.125 4.125 0 00-7.533-2.493M15 19.128v-.003c0-1.113-.285-2.16-.786-3.07M15 19.128v.106A12.318 12.318 0 018.624 21c-2.331 0-4.512-.645-6.374-1.766l-.001-.109a6.375 6.375 0 0111.964-3.07M12 6.375a3.375 3.375 0 11-6.75 0 3.375 3.375 0 016.75 0zm8.25 2.25a2.625 2.625 0 11-5.25 0 2.625 2.625 0 015.25 0z" />
+                </svg>
+                <span className="text-sm font-medium">{t('auth.referralInvite')}</span>
+              </div>
+            </div>
+          )}
         </div>
 
         {/* Card */}
diff --git a/src/pages/Profile.tsx b/src/pages/Profile.tsx
index ddc9079..5eba475 100644
--- a/src/pages/Profile.tsx
+++ b/src/pages/Profile.tsx
@@ -1,9 +1,38 @@
 import { useState } from 'react'
+import { Link } from 'react-router-dom'
 import { useTranslation } from 'react-i18next'
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query'
 import { useAuthStore } from '../store/auth'
 import { authApi } from '../api/auth'
 import { notificationsApi, NotificationSettings, NotificationSettingsUpdate } from '../api/notifications'
+import { referralApi } from '../api/referral'
+import { brandingApi } from '../api/branding'
+
+// Icons
+const CopyIcon = () => (
+  <svg className="w-4 h-4" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={1.5}>
+    <path strokeLinecap="round" strokeLinejoin="round" d="M15.666 3.888A2.25 2.25 0 0013.5 2.25h-3c-1.03 0-1.9.693-2.166 1.638m7.332 0c.055.194.084.4.084.612v0a.75.75 0 01-.75.75H9a.75.75 0 01-.75-.75v0c0-.212.03-.418.084-.612m7.332 0c.646.049 1.288.11 1.927.184 1.1.128 1.907 1.077 1.907 2.185V19.5a2.25 2.25 0 01-2.25 2.25H6.75A2.25 2.25 0 014.5 19.5V6.257c0-1.108.806-2.057 1.907-2.185a48.208 48.208 0 011.927-.184" />
+  </svg>
+)
+
+const CheckIcon = () => (
+  <svg className="w-4 h-4" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
+    <path strokeLinecap="round" strokeLinejoin="round" d="M4.5 12.75l6 6 9-13.5" />
+  </svg>
+)
+
+const ShareIcon = () => (
+  <svg className="w-4 h-4" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={1.5}>
+    <path strokeLinecap="round" strokeLinejoin="round" d="M7 8l5-5m0 0l5 5m-5-5v12" />
+    <path strokeLinecap="round" strokeLinejoin="round" d="M4 15v3a2 2 0 002 2h12a2 2 0 002-2v-3" />
+  </svg>
+)
+
+const ArrowRightIcon = () => (
+  <svg className="w-4 h-4" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
+    <path strokeLinecap="round" strokeLinejoin="round" d="M13.5 4.5L21 12m0 0l-7.5 7.5M21 12H3" />
+  </svg>
+)
 
 export default function Profile() {
   const { t } = useTranslation()
@@ -15,6 +44,58 @@ export default function Profile() {
   const [confirmPassword, setConfirmPassword] = useState('')
   const [error, setError] = useState<string | null>(null)
   const [success, setSuccess] = useState<string | null>(null)
+  const [copied, setCopied] = useState(false)
+
+  // Referral data
+  const { data: referralInfo } = useQuery({
+    queryKey: ['referral-info'],
+    queryFn: referralApi.getReferralInfo,
+  })
+
+  const { data: referralTerms } = useQuery({
+    queryKey: ['referral-terms'],
+    queryFn: referralApi.getReferralTerms,
+  })
+
+  const { data: branding } = useQuery({
+    queryKey: ['branding'],
+    queryFn: brandingApi.getBranding,
+    staleTime: 60000,
+  })
+
+  // Build referral link
+  const botUsername = import.meta.env.VITE_TELEGRAM_BOT_USERNAME
+  const referralLink = referralInfo?.referral_code && botUsername
+    ? `https://t.me/${botUsername}?start=${referralInfo.referral_code}`
+    : referralInfo?.referral_link || ''
+
+  const copyReferralLink = () => {
+    if (referralLink) {
+      navigator.clipboard.writeText(referralLink)
+      setCopied(true)
+      setTimeout(() => setCopied(false), 2000)
+    }
+  }
+
+  const shareReferralLink = () => {
+    if (!referralLink) return
+    const shareText = t('referral.shareMessage', {
+      percent: referralInfo?.commission_percent || 0,
+      botName: branding?.name || import.meta.env.VITE_APP_NAME || 'Cabinet',
+    })
+
+    if (navigator.share) {
+      navigator.share({
+        title: t('referral.title'),
+        text: shareText,
+        url: referralLink,
+      }).catch(() => {})
+      return
+    }
+
+    const telegramUrl = `https://t.me/share/url?url=${encodeURIComponent(referralLink)}&text=${encodeURIComponent(shareText)}`
+    window.open(telegramUrl, '_blank', 'noopener,noreferrer')
+  }
 
   const registerEmailMutation = useMutation({
     mutationFn: ({ email, password }: { email: string; password: string }) =>
@@ -127,6 +208,50 @@ export default function Profile() {
         </div>
       </div>
 
+      {/* Referral Link Widget */}
+      {referralTerms?.is_enabled && referralLink && (
+        <div className="bento-card">
+          <div className="flex items-center justify-between mb-4">
+            <h2 className="text-lg font-semibold text-dark-100">{t('referral.yourLink')}</h2>
+            <Link to="/referral" className="text-accent-400 hover:text-accent-300 transition-colors flex items-center gap-1">
+              <span className="text-sm">{t('referral.title')}</span>
+              <ArrowRightIcon />
+            </Link>
+          </div>
+          <div className="flex flex-col gap-3 sm:flex-row">
+            <div className="flex-1">
+              <input
+                type="text"
+                readOnly
+                value={referralLink}
+                className="input w-full text-sm"
+              />
+            </div>
+            <div className="flex gap-2">
+              <button
+                onClick={copyReferralLink}
+                className={`btn-primary px-4 py-2 flex items-center gap-2 text-sm ${
+                  copied ? 'bg-success-500 hover:bg-success-500' : ''
+                }`}
+              >
+                {copied ? <CheckIcon /> : <CopyIcon />}
+                <span>{copied ? t('referral.copied') : t('referral.copyLink')}</span>
+              </button>
+              <button
+                onClick={shareReferralLink}
+                className="btn-secondary px-4 py-2 flex items-center gap-2 text-sm"
+              >
+                <ShareIcon />
+                <span className="hidden sm:inline">{t('referral.shareButton')}</span>
+              </button>
+            </div>
+          </div>
+          <p className="mt-3 text-sm text-dark-500">
+            {t('referral.shareHint', { percent: referralInfo?.commission_percent || 0 })}
+          </p>
+        </div>
+      )}
+
       {/* Email Section */}
       <div className="bento-card">
         <h2 className="text-lg font-semibold text-dark-100 mb-6">{t('profile.emailAuth')}</h2>