diff --git a/server/billing.mjs b/server/billing.mjs
index 9ddd281..02a1162 100644
--- a/server/billing.mjs
+++ b/server/billing.mjs
@@ -51,6 +51,8 @@ export const PLANS = [
     ],
     sinirlar: { takip: null, ekip: 5 },
     priceEnv: 'STRIPE_PRICE_PRO',
+    priceEnvYillik: 'STRIPE_PRICE_PRO_YILLIK',
+    fiyatYillik: 8954,
   },
   {
     id: 'kurumsal',
@@ -69,6 +71,8 @@ export const PLANS = [
     ],
     sinirlar: { takip: null, ekip: null },
     priceEnv: 'STRIPE_PRICE_KURUMSAL',
+    priceEnvYillik: 'STRIPE_PRICE_KURUMSAL_YILLIK',
+    fiyatYillik: 24800,
   },
 ];
 
@@ -118,6 +122,7 @@ export function planForPrice(priceId) {
   if (!priceId) return null;
   for (const p of PLANS) {
     if (p.priceEnv && process.env[p.priceEnv] === priceId) return p.id;
+    if (p.priceEnvYillik && process.env[p.priceEnvYillik] === priceId) return p.id;
   }
   return null;
 }
@@ -126,6 +131,7 @@ export function planCatalog() {
   return PLANS.map((p) => ({
     ...p,
     satinAlinabilir: Boolean(p.priceEnv && process.env[p.priceEnv] && billingConfigured()),
+    satinAlinabilirYillik: Boolean(p.priceEnvYillik && process.env[p.priceEnvYillik] && billingConfigured()),
   }));
 }
 
@@ -141,25 +147,28 @@ function formEncode(obj) {
   return parts.join('&');
 }
 
-export async function createCheckoutSession({ planId, email }) {
+export async function createCheckoutSession({ planId, email, periyot = 'yillik' }) {
   const key = process.env.STRIPE_SECRET_KEY;
   if (!key) throw new Error('Ödeme yapılandırılmamış (STRIPE_SECRET_KEY yok)');
   const plan = PLANS.find((p) => p.id === planId);
   if (!plan || !plan.priceEnv) throw new Error('Geçersiz plan');
-  const price = process.env[plan.priceEnv];
-  if (!price) throw new Error(`${plan.ad} planı için ${plan.priceEnv} tanımlı değil`);
+  const yillik = periyot === 'yillik';
+  const env = yillik && plan.priceEnvYillik ? plan.priceEnvYillik : plan.priceEnv;
+  const price = process.env[env];
+  if (!price) throw new Error(`${plan.ad} planı için ${env} tanımlı değil`);
 
   const appUrl = process.env.APP_URL || 'https://ihaleist.seymata.com';
   const body = formEncode({
     mode: 'subscription',
     'line_items[0][price]': price,
     'line_items[0][quantity]': 1,
-    success_url: `${appUrl}/?odeme=basarili&plan=${planId}`,
+    success_url: `${appUrl}/?odeme=basarili&plan=${planId}&periyot=${periyot}`,
     cancel_url: `${appUrl}/?odeme=iptal`,
     customer_email: email,
     allow_promotion_codes: 'true',
     client_reference_id: email || '',
     'metadata[planId]': planId,
+    'metadata[periyot]': periyot,
     'metadata[email]': email || '',
   });
 
diff --git a/server/index.js b/server/index.js
index 1bad2b6..b7d11ff 100644
--- a/server/index.js
+++ b/server/index.js
@@ -757,7 +757,7 @@ const server = http.createServer(async (req, res) => {
       if (!user) return json(res, 401, { success: false, error: 'oturum yok' });
       try {
         const body = await readBody(req);
-        const out = await createCheckoutSession({ planId: body.planId, email: user.email });
+        const out = await createCheckoutSession({ planId: body.planId, email: user.email, periyot: body.periyot === 'aylik' ? 'aylik' : 'yillik' });
         return json(res, 200, { success: true, ...out });
       } catch (e) {
         return json(res, billingConfigured() ? 400 : 503, { success: false, error: e.message });
diff --git a/src/components/tools/Pricing.jsx b/src/components/tools/Pricing.jsx
index 992e091..32b631d 100644
--- a/src/components/tools/Pricing.jsx
+++ b/src/components/tools/Pricing.jsx
@@ -8,7 +8,7 @@ export const Pricing = () => {
   const [data, setData] = useState(null);
   const [busy, setBusy] = useState(null);
   const [error, setError] = useState(null);
-  const [yillik, setYillik] = useState(false);
+  const [yillik, setYillik] = useState(true); // yıllık varsayılan (indirimli)
 
   useEffect(() => {
     fetch('/api/billing/plans')
@@ -24,7 +24,7 @@ export const Pricing = () => {
       const res = await fetch('/api/billing/checkout', {
         method: 'POST',
         headers: { 'Content-Type': 'application/json', Authorization: `Bearer ${getToken()}` },
-        body: JSON.stringify({ planId }),
+        body: JSON.stringify({ planId, periyot: yillik ? 'yillik' : 'aylik' }),
       });
       const d = await res.json();
       if (d.success && d.url) window.location.href = d.url;
@@ -37,7 +37,9 @@ export const Pricing = () => {
   };
 
   const plans = data?.plans || [];
-  const fiyatla = (p) => (yillik ? Math.round(p.fiyat * 12 * 0.83) : p.fiyat);
+  // Yıllık tutar Stripe'taki fiyatla birebir aynı olsun diye plandan gelir
+  const fiyatla = (p) => (yillik ? (p.fiyatYillik ?? Math.round(p.fiyat * 12 * 0.83)) : p.fiyat);
+  const aylikKarsiligi = (p) => (p.fiyatYillik ? Math.round(p.fiyatYillik / 12) : p.fiyat);
 
   return (
     <div className="space-y-6 animate-fade-in">
@@ -57,12 +59,12 @@ export const Pricing = () => {
       {/* Aylık / Yıllık */}
       <div className="flex justify-center">
         <div className="bg-white border border-slate-200 rounded-xl p-1 inline-flex text-xs font-bold shadow-xs">
-          <button onClick={() => setYillik(false)} className={`px-4 py-2 rounded-lg transition-colors ${!yillik ? 'bg-blue-600 text-white' : 'text-slate-600 hover:bg-slate-50'}`}>
-            Aylık
-          </button>
           <button onClick={() => setYillik(true)} className={`px-4 py-2 rounded-lg transition-colors flex items-center gap-1.5 ${yillik ? 'bg-blue-600 text-white' : 'text-slate-600 hover:bg-slate-50'}`}>
             Yıllık <span className={`text-[10px] px-1.5 py-0.5 rounded-full ${yillik ? 'bg-amber-400 text-slate-900' : 'bg-emerald-100 text-emerald-800'}`}>%17 indirim</span>
           </button>
+          <button onClick={() => setYillik(false)} className={`px-4 py-2 rounded-lg transition-colors ${!yillik ? 'bg-blue-600 text-white' : 'text-slate-600 hover:bg-slate-50'}`}>
+            Aylık
+          </button>
         </div>
       </div>
 
@@ -106,7 +108,18 @@ export const Pricing = () => {
                 {p.fiyat === 0 ? 'Ücretsiz' : `₺${fiyatla(p).toLocaleString('tr-TR')}`}
               </span>
               {p.fiyat > 0 && <span className="text-xs text-slate-500 font-medium"> /{yillik ? 'yıl' : 'ay'}</span>}
-              {p.fiyat > 0 && <p className="text-[11px] text-slate-400 mt-0.5">KDV hariç</p>}
+              {p.fiyat > 0 && (
+                <p className="text-[11px] text-slate-400 mt-0.5">
+                  KDV hariç
+                  {yillik && (
+                    <> · ayda ₺{aylikKarsiligi(p).toLocaleString('tr-TR')} · yılda{' '}
+                      <span className="text-emerald-600 font-bold">
+                        ₺{(p.fiyat * 12 - fiyatla(p)).toLocaleString('tr-TR')} tasarruf
+                      </span>
+                    </>
+                  )}
+                </p>
+              )}
             </div>
 
             <ul className="space-y-2 text-xs text-slate-700 flex-1">
@@ -125,8 +138,8 @@ export const Pricing = () => {
             ) : (
               <button
                 onClick={() => upgrade(p.id)}
-                disabled={!p.satinAlinabilir || busy === p.id || !authUser}
-                title={!authUser ? 'Önce giriş yapın' : !p.satinAlinabilir ? 'Ödeme altyapısı bağlanmadı' : ''}
+                disabled={!(yillik ? p.satinAlinabilirYillik : p.satinAlinabilir) || busy === p.id || !authUser}
+                title={!authUser ? 'Önce giriş yapın' : !(yillik ? p.satinAlinabilirYillik : p.satinAlinabilir) ? 'Ödeme altyapısı bağlanmadı' : ''}
                 className={`w-full font-extrabold text-xs py-3 rounded-xl flex items-center justify-center gap-2 transition-colors disabled:opacity-40 disabled:cursor-not-allowed ${
                   p.vurgu ? 'bg-blue-600 hover:bg-blue-500 text-white' : 'bg-slate-900 hover:bg-slate-800 text-white'
                 }`}