diff --git a/apps/hq-web/src/api.ts b/apps/hq-web/src/api.ts
index 134249c..82ce4fb 100644
--- a/apps/hq-web/src/api.ts
+++ b/apps/hq-web/src/api.ts
@@ -90,6 +90,8 @@ export interface Client {
   ownerId?: string
   /** D18 WS-F support-access data; the DB password itself is reveal-only. */
   anydesk?: string; os?: string; district?: string; sector?: string
+  /** D35: 'PACS' (co-op society) or 'Store' (retail). */
+  clientType: string
   hasDbPassword: boolean
 }
 
@@ -232,12 +234,13 @@ export interface ClientWrite {
 }
 
 export const getClients = (
-  q?: string, filters?: { district?: string; sector?: string },
+  q?: string, filters?: { district?: string; sector?: string; clientType?: string },
 ): Promise<Client[]> => {
   const params = new URLSearchParams()
   if (q !== undefined && q !== '') params.set('q', q)
   if (filters?.district !== undefined && filters.district !== '') params.set('district', filters.district)
   if (filters?.sector !== undefined && filters.sector !== '') params.set('sector', filters.sector)
+  if (filters?.clientType !== undefined && filters.clientType !== '') params.set('clientType', filters.clientType)
   const qs = params.toString()
   return apiFetch<{ clients: Client[] }>(`/clients${qs !== '' ? `?${qs}` : ''}`).then((r) => r.clients)
 }
diff --git a/apps/hq-web/src/pages/Clients.tsx b/apps/hq-web/src/pages/Clients.tsx
index e57e04f..646253d 100644
--- a/apps/hq-web/src/pages/Clients.tsx
+++ b/apps/hq-web/src/pages/Clients.tsx
@@ -94,10 +94,12 @@ export function Clients() {
   // D18 WS-F: the old book's two working filters, applied server-side.
   const [district, setDistrict] = useState('')
   const [sector, setSector] = useState('')
+  const [typeFilter, setTypeFilter] = useState('all') // D35: PACS / Store
   // Debounced so typing in the search box doesn't fire a server request per keystroke.
   const qDebounced = useDebounced(q)
   const { data, error, reload } = useData(
-    () => getClients(qDebounced, { district, sector }), [qDebounced, district, sector],
+    () => getClients(qDebounced, { district, sector, ...(typeFilter !== 'all' ? { clientType: typeFilter } : {}) }),
+    [qDebounced, district, sector, typeFilter],
   )
   const [sp, setSp] = useSearchParams()
   const toast = useToast()
@@ -164,6 +166,15 @@ export function Clients() {
             ...CLIENT_STATUSES.map((s) => ({ key: s, label: s, count: counts.get(s) ?? 0 })),
           ]}
         />
+        <FilterChips
+          active={typeFilter}
+          onChange={setTypeFilter}
+          chips={[
+            { key: 'all', label: 'All types' },
+            { key: 'PACS', label: 'PACS' },
+            { key: 'Store', label: 'Store' },
+          ]}
+        />
         <span className="spacer" />
         {isOwner && (selecting ? (
           <>
@@ -189,6 +200,7 @@ export function Clients() {
           columns={[
             ...(selecting ? [{ key: 'sel', label: '' }] : []),
             { key: 'code', label: 'Code', mono: true }, { key: 'name', label: 'Name' },
+            { key: 'type', label: 'Type' },
             { key: 'status', label: 'Status' }, { key: 'state', label: 'State' },
             { key: 'contact', label: 'Contact' },
           ]}
@@ -203,6 +215,7 @@ export function Clients() {
               ),
             } : {}),
             code: c.code, name: c.name,
+            type: <Badge tone={c.clientType === 'Store' ? 'violet' : undefined}>{c.clientType}</Badge>,
             status: <Badge tone={CLIENT_TONE[c.status]}>{c.status}</Badge>,
             state: c.stateCode,
             contact: c.contacts[0]?.email ?? c.contacts[0]?.phone ?? '—',
diff --git a/apps/hq/src/api.ts b/apps/hq/src/api.ts
index d14eccb..03077a2 100644
--- a/apps/hq/src/api.ts
+++ b/apps/hq/src/api.ts
@@ -260,6 +260,7 @@ export function apiRouter(
       const filters = {
         ...(typeof req.query['district'] === 'string' ? { district: req.query['district'] } : {}),
         ...(typeof req.query['sector'] === 'string' ? { sector: req.query['sector'] } : {}),
+        ...(typeof req.query['clientType'] === 'string' ? { clientType: req.query['clientType'] } : {}),
       }
       res.json({ ok: true, clients: await listClients(db, q, filters) })
     } catch (err) {
@@ -840,7 +841,7 @@ export function apiRouter(
       const client: Client = picked ?? {
         id: '', code: '—', name: '— pick a client —',
         stateCode: company['company.state_code'] ?? '32',
-        address: '', contacts: [], status: 'lead', notes: '', hasDbPassword: false,
+        address: '', contacts: [], status: 'lead', notes: '', clientType: 'PACS', hasDbPassword: false,
       }
       const t = prepared.totals
       const doc: Doc = {
diff --git a/apps/hq/src/db.ts b/apps/hq/src/db.ts
index 1d4b8df..c606173 100644
--- a/apps/hq/src/db.ts
+++ b/apps/hq/src/db.ts
@@ -168,6 +168,8 @@ CREATE TABLE IF NOT EXISTS client (
   -- D18 WS-F: support-access data from the APEX book. db_password_enc is AES-256-GCM
   -- (HQ_SECRET_KEY) and never appears in list/get payloads — reveal-only, audited.
   anydesk TEXT, os TEXT, district TEXT, sector TEXT, db_password_enc TEXT,
+  -- D35: 'PACS' (co-op society) vs 'Store' (retail); backfilled by name, editable per client.
+  client_type TEXT NOT NULL DEFAULT 'PACS',
   notes TEXT NOT NULL DEFAULT '', source TEXT NOT NULL DEFAULT 'hq', created_at TEXT NOT NULL
 );
 CREATE TABLE IF NOT EXISTS module (
@@ -443,6 +445,12 @@ function migrate(db: SqliteRaw): void {
       db.exec(`ALTER TABLE client ADD COLUMN ${col} TEXT`)
     }
   }
+  // D35: client type — 'PACS' (co-op society) vs 'Store' (retail). Backfilled by name:
+  // a name ending in STORE/STORES is a Store, everything else a PACS. Editable per client.
+  if (!clientCols.some((c) => c.name === 'client_type')) {
+    db.exec(`ALTER TABLE client ADD COLUMN client_type TEXT NOT NULL DEFAULT 'PACS'`)
+    db.exec(`UPDATE client SET client_type='Store' WHERE UPPER(TRIM(name)) LIKE '%STORE' OR UPPER(TRIM(name)) LIKE '%STORES'`)
+  }
   // …and the same fields on the import staging table so the cutover carries them.
   const stgClientCols = db.prepare(`PRAGMA table_info(stg_client)`).all() as { name: string }[]
   for (const col of ['anydesk', 'os', 'district', 'sector']) {
diff --git a/apps/hq/src/migrations-pg.ts b/apps/hq/src/migrations-pg.ts
index c6e88ef..4fdfdfa 100644
--- a/apps/hq/src/migrations-pg.ts
+++ b/apps/hq/src/migrations-pg.ts
@@ -312,4 +312,13 @@ CREATE TABLE IF NOT EXISTS sms_balance_check (
     id: '011-staff-must-change-password',
     sql: `ALTER TABLE staff_user ADD COLUMN IF NOT EXISTS must_change_password integer NOT NULL DEFAULT 0;`,
   },
+  {
+    // D35: client type (PACS vs Store), backfilled from the name.
+    id: '012-client-type',
+    sql: `
+ALTER TABLE client ADD COLUMN IF NOT EXISTS client_type text NOT NULL DEFAULT 'PACS';
+UPDATE client SET client_type='Store'
+ WHERE UPPER(TRIM(name)) LIKE '%STORE' OR UPPER(TRIM(name)) LIKE '%STORES';
+`,
+  },
 ]
diff --git a/apps/hq/src/repos-clients.ts b/apps/hq/src/repos-clients.ts
index ee2df2d..6432350 100644
--- a/apps/hq/src/repos-clients.ts
+++ b/apps/hq/src/repos-clients.ts
@@ -16,6 +16,8 @@ export interface Client {
   /** D18 WS-F support-access data (APEX parity). The DB password is NOT here —
    *  it is encrypted at rest and readable only via revealClientDbPassword (audited). */
   anydesk?: string; os?: string; district?: string; sector?: string
+  /** D35: 'PACS' (co-op society) or 'Store' (retail). */
+  clientType: string
   /** True when an encrypted DB password is stored (the UI shows •••• + Reveal). */
   hasDbPassword: boolean
 }
@@ -24,6 +26,7 @@ interface ClientRow {
   id: string; code: string; name: string; gstin: string | null; state_code: string
   address: string; contacts: string; status: string; owner_id: string | null; notes: string
   anydesk: string | null; os: string | null; district: string | null; sector: string | null
+  client_type: string | null
   db_password_enc: string | null
   source: string; created_at: string
 }
@@ -40,6 +43,7 @@ function toClient(r: ClientRow): Client {
     ...(r.os !== null ? { os: r.os } : {}),
     ...(r.district !== null ? { district: r.district } : {}),
     ...(r.sector !== null ? { sector: r.sector } : {}),
+    clientType: r.client_type ?? 'PACS',
     hasDbPassword: r.db_password_enc !== null, // the ciphertext itself never leaves the repo
   }
 }
@@ -50,7 +54,7 @@ function assertGstin(gstin: string): void {
 }
 
 export async function listClients(
-  db: DB, q?: string, filters: { district?: string; sector?: string } = {},
+  db: DB, q?: string, filters: { district?: string; sector?: string; clientType?: string } = {},
 ): Promise<Client[]> {
   let where = ' WHERE 1=1'
   const args: unknown[] = []
@@ -70,6 +74,9 @@ export async function listClients(
   if (filters.sector !== undefined && filters.sector !== '') {
     where += ` AND LOWER(sector) LIKE LOWER(?)`; args.push(`%${filters.sector}%`)
   }
+  if (filters.clientType !== undefined && filters.clientType !== '') {
+    where += ` AND client_type=?`; args.push(filters.clientType)
+  }
   const rows = await db.all<ClientRow>(`SELECT * FROM client${where} ORDER BY name`, ...args)
   return rows.map(toClient)
 }
@@ -82,7 +89,12 @@ export async function getClient(db: DB, id: string): Promise<Client | null> {
 export interface ClientInput {
   code?: string; name: string; gstin?: string; stateCode: string; address?: string
   contacts?: ClientContact[]; status?: Client['status']; notes?: string
-  anydesk?: string; os?: string; district?: string; sector?: string
+  anydesk?: string; os?: string; district?: string; sector?: string; clientType?: string
+}
+
+/** New clients default their type from the name (…STORE → Store), like the backfill. */
+function typeFromName(name: string): string {
+  return /store[s]?$/i.test(name.trim()) ? 'Store' : 'PACS'
 }
 
 export async function createClient(db: DB, userId: string, input: ClientInput): Promise<Client> {
@@ -92,12 +104,13 @@ export async function createClient(db: DB, userId: string, input: ClientInput):
   const code = input.code ?? `CL${String(n + 1).padStart(4, '0')}`
   await db.run(
     `INSERT INTO client (id, code, name, gstin, state_code, address, contacts, status,
-       anydesk, os, district, sector, notes, created_at)
-     VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
+       anydesk, os, district, sector, client_type, notes, created_at)
+     VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
     id, code, input.name, input.gstin ?? null, input.stateCode,
     input.address ?? '', JSON.stringify(input.contacts ?? []),
     input.status ?? 'active',
     input.anydesk ?? null, input.os ?? null, input.district ?? null, input.sector ?? null,
+    input.clientType ?? typeFromName(input.name),
     input.notes ?? '', new Date().toISOString(),
   )
   const client = (await getClient(db, id))!
@@ -110,6 +123,7 @@ export interface ClientPatch {
   contacts?: ClientContact[]; status?: Client['status']; notes?: string
   /** '' clears the field (stored NULL). */
   anydesk?: string; os?: string; district?: string; sector?: string
+  clientType?: string
 }
 
 export async function updateClient(db: DB, userId: string, id: string, patch: ClientPatch): Promise<Client> {
@@ -125,6 +139,7 @@ export async function updateClient(db: DB, userId: string, id: string, patch: Cl
   if (patch.contacts !== undefined) { sets.push('contacts=?'); args.push(JSON.stringify(patch.contacts)) }
   if (patch.status !== undefined) { sets.push('status=?'); args.push(patch.status) }
   if (patch.notes !== undefined) { sets.push('notes=?'); args.push(patch.notes) }
+  if (patch.clientType !== undefined) { sets.push('client_type=?'); args.push(patch.clientType) }
   const optText = (col: string, v: string | undefined) => {
     if (v !== undefined) { sets.push(`${col}=?`); args.push(v.trim() === '' ? null : v.trim()) }
   }
diff --git a/apps/hq/src/templates.ts b/apps/hq/src/templates.ts
index 39a978d..3e329af 100644
--- a/apps/hq/src/templates.ts
+++ b/apps/hq/src/templates.ts
@@ -413,7 +413,7 @@ export function documentHtmlSample(company: Record<string, string>, opts: { cont
   const client: Client = {
     id: 'sample', code: 'SAMPLE', name: 'Sample Client Pvt Ltd', gstin: '32ABCDE1234F1Z5',
     stateCode, address: '1st Floor, MG Road, Kochi', contacts: [], status: 'active', notes: '',
-    hasDbPassword: false,
+    clientType: 'PACS', hasDbPassword: false,
   }
   const line: BillLine = {
     itemId: 'sample', name: 'POS Billing — Yearly', hsn: '998313', qty: 1, unitCode: 'NOS',