diff --git a/apps/business/src/components/SmsSettingsSection.tsx b/apps/business/src/components/SmsSettingsSection.tsx
index ddbcb8c..3873dcb 100644
--- a/apps/business/src/components/SmsSettingsSection.tsx
+++ b/apps/business/src/components/SmsSettingsSection.tsx
@@ -8,7 +8,6 @@ import { Tooltip } from './Tooltip'
 import { useToast } from '../context/ToastContext'
 import { useT } from '../i18n/useT'
 import { ApiError, isAbortError } from '../lib/api'
-import { formatIrtPrice } from '../utils/irtPrice'
 import {
   createSmsTemplate,
   deleteSmsTemplate,
@@ -26,7 +25,7 @@ import settingsStyles from '../pages/SettingsPage.module.css'
 import modalStyles from './VariationsModal.module.css'
 
 const SMS_TEMPLATE_VARS = ['{{user.name}}', '{{user.lastname}}', '{{user.title}}'] as const
-const LOW_BALANCE_IRT = 200_000
+const LOW_BALANCE_CREDITS = 400
 const ANIMATION_MS = 220
 const MAX_BODY_LEN = 700
 
@@ -131,7 +130,7 @@ export function SmsSettingsSection() {
   }, [listMounted, editorMounted, editorOpen, listOpen, submitting, removeTarget])
 
   const verifiedCount = templates.filter((item) => item.isVerified).length
-  const isLowBalance = balance < LOW_BALANCE_IRT
+  const isLowBalance = balance < LOW_BALANCE_CREDITS
 
   function openCreate() {
     setEditing(null)
@@ -265,7 +264,11 @@ export function SmsSettingsSection() {
       >
         <span className={settingsStyles.smsCreditLabel}>{t('settings.sms.balance')}</span>
         <strong className={settingsStyles.smsCreditValue}>
-          {loading ? '…' : formatIrtPrice(balance)}
+          {loading
+            ? '…'
+            : t('settings.sms.balanceValue', {
+                count: balance.toLocaleString(isFa ? 'fa-IR' : 'en-US'),
+              })}
         </strong>
       </div>
 
diff --git a/apps/business/src/i18n/messages.ts b/apps/business/src/i18n/messages.ts
index ba56cce..02c418f 100644
--- a/apps/business/src/i18n/messages.ts
+++ b/apps/business/src/i18n/messages.ts
@@ -1694,9 +1694,11 @@ const en = {
   'settings.sms.title': 'SMS settings',
   'settings.sms.desc':
     'View your prepaid SMS balance and manage message templates. Sender numbers are managed by Meshkee.',
-  'settings.sms.balance': 'SMS balance',
+  'settings.sms.balance': 'SMS credits',
+  'settings.sms.balanceValue': '{count} SMS',
   'settings.sms.balanceHint':
-    'Balance is in IRT. Each 64 characters costs 400 IRT per recipient (login, orders, customer SMS, etc.). Contact Meshkee to top up.',
+    'Balance is SMS credits. Each 64 characters costs 1 credit per recipient (login, orders, customer SMS, etc.). Contact Meshkee to top up.',
+  'settings.sms.sentCount': 'SMS sent',
   'settings.sms.credit': 'Account credit',
   'settings.sms.creditUnavailable': 'Unavailable',
   'settings.sms.templates': 'Templates',
@@ -4157,8 +4159,10 @@ const fa: Record<MessageKey, string> = {
   'settings.sms.desc':
     'اعتبار پیش‌پرداخت پیامک و قالب‌های پیام را ببینید. شماره فرستنده توسط مشکی مدیریت می‌شود.',
   'settings.sms.balance': 'اعتبار پیامک',
+  'settings.sms.balanceValue': '{count} پیامک',
   'settings.sms.balanceHint':
-    'اعتبار به تومان (IRT) است. هر ۶۴ کاراکتر برای هر گیرنده ۴۰۰ تومان هزینه دارد (ورود، سفارش، پیامک مشتری و غیره). برای افزایش با مشکی تماس بگیرید.',
+    'اعتبار به واحد پیامک است. هر ۶۴ کاراکتر برای هر گیرنده ۱ اعتبار مصرف می‌کند (ورود، سفارش، پیامک مشتری و غیره). برای افزایش با مشکی تماس بگیرید.',
+  'settings.sms.sentCount': 'پیامک ارسال‌شده',
   'settings.sms.credit': 'اعتبار حساب',
   'settings.sms.creditUnavailable': 'در دسترس نیست',
   'settings.sms.templates': 'قالب‌ها',
diff --git a/apps/business/src/services/smsTemplateService.ts b/apps/business/src/services/smsTemplateService.ts
index 3d89b16..1e5ada6 100644
--- a/apps/business/src/services/smsTemplateService.ts
+++ b/apps/business/src/services/smsTemplateService.ts
@@ -69,6 +69,9 @@ export async function getSmsCredit(signal?: AbortSignal) {
     balance: number
     /** @deprecated use balance */
     credit: number | null
+    /** Lifetime SMS messages billed (one per recipient). */
+    sentCount: number
+    unit: 'credits'
     currency: string | null
     message: string | null
   }>(smsPath('/credit'), { auth: true, signal })
diff --git a/apps/super-admin/src/pages/BusinessesPage.module.css b/apps/super-admin/src/pages/BusinessesPage.module.css
index 97d2ef3..8235243 100644
--- a/apps/super-admin/src/pages/BusinessesPage.module.css
+++ b/apps/super-admin/src/pages/BusinessesPage.module.css
@@ -30,9 +30,11 @@
   min-width: 0;
 }
 
-/* Equal width fields; same 12px gap as field→action buttons */
+/* Equal width fields; same 12px gap as field→action buttons.
+   Cap growth so a single filter (e.g. Websites Name) stays compact. */
 .filtersInputs > .field {
   flex: 1 1 160px;
+  max-width: 280px;
   min-width: 0;
 }
 
@@ -78,6 +80,14 @@
   color: var(--text-muted);
 }
 
+.smsTopUpCredits {
+  margin: 8px 0 0;
+  font-size: 13px;
+  font-weight: 600;
+  font-variant-numeric: tabular-nums;
+  color: var(--text-primary);
+}
+
 .entityGroupLabel {
   font-size: 12px;
   font-weight: 500;
@@ -440,6 +450,21 @@
   padding-right: 8px;
 }
 
+.thSms,
+.tdSms {
+  width: 1%;
+  white-space: nowrap;
+  text-align: center;
+  font-variant-numeric: tabular-nums;
+}
+
+.tdSms {
+  padding-left: 8px;
+  padding-right: 8px;
+  color: var(--text-secondary);
+  font-size: 13px;
+}
+
 .thModules,
 .tdModules {
   width: 1%;
@@ -1051,6 +1076,7 @@
 
   .filtersInputs > .field {
     flex-basis: 100%;
+    max-width: none;
   }
 
   .filterActions {
diff --git a/apps/super-admin/src/pages/BusinessesPage.tsx b/apps/super-admin/src/pages/BusinessesPage.tsx
index 1d2527f..e3b4fe8 100644
--- a/apps/super-admin/src/pages/BusinessesPage.tsx
+++ b/apps/super-admin/src/pages/BusinessesPage.tsx
@@ -90,6 +90,7 @@ import {
   type HomeChartId,
 } from '../utils/businessModules'
 import { flattenBusinessCategories } from '../utils/categories'
+import { formatIrtInput, parseIrtInput } from '../utils/irtPrice'
 import { Pagination } from '@meshkee/dashboard-ui'
 import pageStyles from '../components/PageContent.module.css'
 import styles from './BusinessesPage.module.css'
@@ -345,7 +346,7 @@ export function BusinessesPage() {
   const [smsSettingsOpen, setSmsSettingsOpen] = useState(false)
   const [smsSettingsBusiness, setSmsSettingsBusiness] = useState<BusinessListItem | null>(null)
   const [smsSenderNumber, setSmsSenderNumber] = useState('')
-  const [smsBalance, setSmsBalance] = useState('0')
+  const [smsTopUpIrt, setSmsTopUpIrt] = useState('')
   const [smsSettingsSubmitting, setSmsSettingsSubmitting] = useState(false)
   const [smsSettingsError, setSmsSettingsError] = useState('')
 
@@ -534,7 +535,7 @@ export function BusinessesPage() {
   function openSmsSettings(b: BusinessListItem) {
     setSmsSettingsBusiness(b)
     setSmsSenderNumber(b.smsSenderNumber ?? '')
-    setSmsBalance(String(b.smsBalance ?? 0))
+    setSmsTopUpIrt('')
     setSmsSettingsError('')
     setSmsSettingsOpen(true)
   }
@@ -917,18 +918,28 @@ export function BusinessesPage() {
     if (!smsSettingsBusiness) return
 
     const sender = smsSenderNumber.replace(/\D/g, '')
-    const balanceParsed = Number.parseInt(smsBalance.replace(/\D/g, '') || '0', 10)
-    if (!Number.isFinite(balanceParsed) || balanceParsed < 0) {
-      setSmsSettingsError('SMS balance must be a non-negative integer.')
+    const topUpParsed = parseIrtInput(smsTopUpIrt) ?? undefined
+    if (
+      topUpParsed !== undefined &&
+      (!Number.isFinite(topUpParsed) || topUpParsed < 1)
+    ) {
+      setSmsSettingsError('Top-up amount must be a positive integer (IRT).')
       return
     }
+    if (topUpParsed !== undefined && topUpParsed < 500) {
+      setSmsSettingsError('Minimum top-up is 500 IRT (1 SMS credit).')
+      return
+    }
+
+    const creditsAdded =
+      topUpParsed !== undefined ? Math.floor(topUpParsed / 500) : 0
 
     setSmsSettingsSubmitting(true)
     setSmsSettingsError('')
     try {
       await updateBusiness(smsSettingsBusiness.id, {
         smsSenderNumber: sender || null,
-        smsBalance: balanceParsed,
+        ...(topUpParsed !== undefined ? { smsTopUpIrt: topUpParsed } : {}),
       })
       setData((prev) => {
         if (!prev) return prev
@@ -939,7 +950,7 @@ export function BusinessesPage() {
               ? {
                   ...item,
                   smsSenderNumber: sender || null,
-                  smsBalance: balanceParsed,
+                  smsBalance: (item.smsBalance ?? 0) + creditsAdded,
                 }
               : item,
           ),
@@ -947,7 +958,12 @@ export function BusinessesPage() {
       })
       setSmsSettingsOpen(false)
       setSmsSettingsBusiness(null)
-      showToast('SMS settings saved.', 'success')
+      showToast(
+        creditsAdded > 0
+          ? `SMS settings saved. Added ${creditsAdded.toLocaleString('en-US')} credits.`
+          : 'SMS settings saved.',
+        'success',
+      )
     } catch (err) {
       setSmsSettingsError(
         err instanceof ApiError ? err.message : 'Unable to save SMS settings.',
@@ -1546,6 +1562,7 @@ export function BusinessesPage() {
                   <th className={styles.th}>Contract Data / Renewal</th>
                   <th className={styles.th}>Domain</th>
                   <th className={styles.th}>Owner</th>
+                  <th className={`${styles.th} ${styles.thSms}`}>SMS sent</th>
                   <th className={`${styles.th} ${styles.thTheme}`}>Theme</th>
                   <th className={`${styles.th} ${styles.thLocale}`}>Lang</th>
                   <th className={`${styles.th} ${styles.thModules}`}>Modules</th>
@@ -1555,7 +1572,7 @@ export function BusinessesPage() {
               <tbody>
                 {loading && (
                   <tr>
-                    <td className={styles.td} colSpan={8}>
+                    <td className={styles.td} colSpan={9}>
                       Loading...
                     </td>
                   </tr>
@@ -1563,7 +1580,7 @@ export function BusinessesPage() {
 
                 {!loading && data?.items?.length === 0 && (
                   <tr>
-                    <td className={styles.td} colSpan={8}>
+                    <td className={styles.td} colSpan={9}>
                       No results found.
                     </td>
                   </tr>
@@ -1654,6 +1671,9 @@ export function BusinessesPage() {
                           </div>
                         </div>
                       </td>
+                      <td className={`${styles.td} ${styles.tdSms}`}>
+                        {(b.smsSentCount ?? 0).toLocaleString('en-US')}
+                      </td>
                       <td className={`${styles.td} ${styles.tdTheme}`}>
                         <PrimaryColorSwatchControl
                           value={normalizeBusinessPrimaryColorId(b.primaryColor)}
@@ -2088,20 +2108,64 @@ export function BusinessesPage() {
           </p>
         </div>
         <div className={styles.field}>
-          <label htmlFor="sms-settings-balance">SMS balance (IRT)</label>
+          <label>Current SMS balance</label>
           <input
-            id="sms-settings-balance"
+            value={`${(smsSettingsBusiness?.smsBalance ?? 0).toLocaleString('en-US')} credits`}
+            readOnly
+            disabled
+            aria-label="Current SMS credit balance"
+          />
+          <p className={styles.helperText}>
+            Prepaid SMS credits. 1 credit = one 64-character segment per recipient (OTP,
+            customer SMS, partner SMS). New businesses start with 1,000 credits. Values below
+            400 credits show as low balance in the business dashboard.
+          </p>
+        </div>
+        <div className={styles.field}>
+          <label htmlFor="sms-settings-topup">Add top-up (IRT)</label>
+          <input
+            id="sms-settings-topup"
+            type="text"
             inputMode="numeric"
-            value={smsBalance}
-            onChange={(e) => setSmsBalance(e.target.value.replace(/\D/g, '').slice(0, 12))}
-            placeholder="0"
+            value={smsTopUpIrt}
+            onChange={(e) => {
+              const digits = e.target.value.replace(/\D/g, '').slice(0, 12)
+              setSmsTopUpIrt(formatIrtInput(digits))
+            }}
+            placeholder="e.g. 1,000,000"
             disabled={smsSettingsSubmitting}
             autoComplete="off"
           />
+          {(() => {
+            const irt = parseIrtInput(smsTopUpIrt) ?? 0
+            const credits = Math.floor(irt / 500)
+            const current = smsSettingsBusiness?.smsBalance ?? 0
+            const next = current + credits
+            return (
+              <p className={styles.smsTopUpCredits} aria-live="polite">
+                {irt > 0
+                  ? `SMS credit charge: +${credits.toLocaleString('en-US')} → new balance ${next.toLocaleString('en-US')} (was ${current.toLocaleString('en-US')})`
+                  : 'SMS credit charge: —'}
+              </p>
+            )
+          })()}
           <p className={styles.helperText}>
-            Prepaid SMS balance in IRT. Billing: 400 IRT per 64 characters per recipient
-            (OTP, customer SMS, partner SMS). New businesses start with 500,000 IRT. Values
-            below 200,000 IRT show as low balance in the business dashboard.
+            Each SMS credit costs 500 IRT (1,000,000 → +2,000 credits). Top-ups are added to
+            the current balance — they never reset it. Leave empty to only update the sender
+            number.
+          </p>
+        </div>
+        <div className={styles.field}>
+          <label>SMS sent</label>
+          <input
+            value={(smsSettingsBusiness?.smsSentCount ?? 0).toLocaleString('en-US')}
+            readOnly
+            disabled
+            aria-label="SMS messages sent"
+          />
+          <p className={styles.helperText}>
+            Lifetime messages billed for this business (one per recipient). Updated automatically
+            when SMS is charged or refunded.
           </p>
         </div>
         <div style={{ height: 12 }} />
@@ -2607,8 +2671,8 @@ export function BusinessesPage() {
           </p>
         ) : null}
         <p className={styles.helperText} style={{ marginTop: 0, marginBottom: 12 }}>
-          New businesses receive an initial SMS balance of 500,000 IRT (400 IRT per 64 characters
-          per recipient).
+          New businesses receive an initial SMS balance of 1,000 credits (1 credit = 64 characters
+          per recipient; top-ups cost 500 IRT per credit).
         </p>
         <div className={styles.formGrid}>
           <div className={styles.field}>
diff --git a/apps/super-admin/src/services/businessService.ts b/apps/super-admin/src/services/businessService.ts
index 6fa96c9..831a820 100644
--- a/apps/super-admin/src/services/businessService.ts
+++ b/apps/super-admin/src/services/businessService.ts
@@ -25,7 +25,8 @@ export interface UpdateBusinessPayload {
   oldBusinessId?: number | null
   annualRenewalAt?: string | null
   smsSenderNumber?: string | null
-  smsBalance?: number
+  /** IRT amount to convert into SMS credits and add (floor(irt / 500)). */
+  smsTopUpIrt?: number
 }
 
 export interface AddDomainPayload {
diff --git a/apps/super-admin/src/types/business.ts b/apps/super-admin/src/types/business.ts
index 7d85be4..e90f3b3 100644
--- a/apps/super-admin/src/types/business.ts
+++ b/apps/super-admin/src/types/business.ts
@@ -40,8 +40,10 @@ export interface BusinessListItem {
   oldBusinessId: string | null
   /** Gama shortcode for customer SMS; null → Meshkee advertising number. */
   smsSenderNumber: string | null
-  /** Prepaid SMS balance in IRT (400 IRT per 64 chars / recipient). */
+  /** Prepaid SMS credit units (1 = 64 chars × recipient). Top-up at 500 IRT/credit. */
   smsBalance: number
+  /** Lifetime SMS messages billed (one per recipient; decremented on refund). */
+  smsSentCount: number
 }
 
 export type MigrateFromOldEntity =
diff --git a/docs/PROJECT_CONTEXT.md b/docs/PROJECT_CONTEXT.md
index b13f6c8..52e525b 100644
--- a/docs/PROJECT_CONTEXT.md
+++ b/docs/PROJECT_CONTEXT.md
@@ -319,11 +319,13 @@ Products accept optional `brandId` on create/update.
 - `POST /businesses/:businessId/customers/sms` — bulk SMS via Gama **SendBulk** (or per-recipient when template/vars); body `{ message, userIds?, templateId? }` — empty/omitted `userIds` → all enabled customers
 - Free-text SMS source: `settings.sms.senderNumber` (Super Admin only) or advertising shortcode `5000990009`
 - Verified SMS template → service shortcode `5000110005` (fixed); unverified template → `5000990009`
-- Per-business prepaid `businesses.sms_balance` (IRT) — all Meshkee SMS (OTP login/forgot-password, customer SMS, partner/public SMS for linked domains) costs **400 IRT per 64 characters** per recipient (`ceil(len/64)*400`). Insufficient balance blocks send.
-- New businesses created in Super Admin start with **500,000 IRT** SMS balance
+- Per-business prepaid `businesses.sms_balance` (**SMS credits**) — all Meshkee SMS (OTP login/forgot-password, customer SMS, partner/public SMS for linked domains) costs **1 credit per 64 characters** per recipient (`ceil(len/64)`). Insufficient balance blocks send.
+- Top-up (Super Admin): enter IRT amount → adds `floor(IRT / 500)` credits (e.g. 1,000,000 IRT → 2,000 credits)
+- New businesses created in Super Admin start with **1,000** SMS credits
+- `businesses.sms_sent_count` — lifetime messages billed (one per recipient)
 - External domains (no Meshkee website) still bill via their business row once the domain is linked
-- Business Settings → **SMS settings**: balance (read-only) + template CRUD
-- Super Admin business overflow → **SMS settings** modal: sender number + SMS balance top-up
+- Business Settings → **SMS settings**: credit balance (read-only) + template CRUD
+- Super Admin business overflow → **SMS settings** modal: sender number + current credits + IRT top-up
 - Super Admin → **SMS Templates** (`/sms-templates`): verify / unverify
 - Online payment gateways live under **Website → Settings** (not main Settings)
 - Template vars: `{{user.name}}`, `{{user.lastname}}`, `{{user.title}}`