diff --git a/frontend/src/api/admin/accounts.ts b/frontend/src/api/admin/accounts.ts
index 40b80c1861..ea9b59b20c 100644
--- a/frontend/src/api/admin/accounts.ts
+++ b/frontend/src/api/admin/accounts.ts
@@ -715,6 +715,8 @@ export interface BatchOperationResult {
   total: number
   success: number
   failed: number
+  success_ids?: number[]
+  failed_ids?: number[]
   errors?: Array<{ account_id: number; error: string }>
   warnings?: Array<{ account_id: number; warning: string }>
 }
@@ -729,6 +731,16 @@ export async function revertProxyFallback(id: number): Promise<{ message: string
   return data
 }
 
+/**
+ * Delete multiple accounts with bounded server-side concurrency.
+ */
+export async function batchDelete(accountIds: number[]): Promise<BatchOperationResult> {
+  const { data } = await apiClient.post<BatchOperationResult>('/admin/accounts/batch-delete', {
+    account_ids: accountIds
+  })
+  return data
+}
+
 /**
  * Batch clear account errors
  * @param accountIds - Array of account IDs
@@ -968,6 +980,7 @@ export const accountsAPI = {
   importCodexSession,
   createOpenAICodexPAT,
   getAntigravityDefaultModelMapping,
+  batchDelete,
   batchClearError,
   batchRefresh,
   setPrivacy,
diff --git a/frontend/src/components/admin/account/AccountBulkActionsBar.vue b/frontend/src/components/admin/account/AccountBulkActionsBar.vue
index f3a062d0d6..64844e0955 100644
--- a/frontend/src/components/admin/account/AccountBulkActionsBar.vue
+++ b/frontend/src/components/admin/account/AccountBulkActionsBar.vue
@@ -1,26 +1,45 @@
 <template>
   <div class="mb-4 flex items-center justify-between rounded-lg bg-primary-50 p-3 dark:bg-primary-900/20">
     <div class="flex flex-wrap items-center gap-2">
-      <span v-if="selectedIds.length > 0" class="text-sm font-medium text-primary-900 dark:text-primary-100">
+      <span v-if="allResultsSelected" class="text-sm font-medium text-primary-900 dark:text-primary-100">
+        {{ t('admin.accounts.bulkActions.selectedAll', { count: selectedIds.length }) }}
+      </span>
+      <span v-else-if="selectedIds.length > 0" class="text-sm font-medium text-primary-900 dark:text-primary-100">
         {{ t('admin.accounts.bulkActions.selected', { count: selectedIds.length }) }}
       </span>
       <span v-else class="text-sm font-medium text-primary-900 dark:text-primary-100">
         {{ t('admin.accounts.bulkEdit.title') }}
       </span>
       <template v-if="selectedIds.length > 0">
-      <button
-        @click="$emit('select-page')"
-        class="text-xs font-medium text-primary-700 hover:text-primary-800 dark:text-primary-300 dark:hover:text-primary-200"
-      >
-        {{ t('admin.accounts.bulkActions.selectCurrentPage') }}
-      </button>
-      <span class="text-gray-300 dark:text-primary-800">•</span>
-      <button
-        @click="$emit('clear')"
-        class="text-xs font-medium text-primary-700 hover:text-primary-800 dark:text-primary-300 dark:hover:text-primary-200"
-      >
-        {{ t('admin.accounts.bulkActions.clear') }}
-      </button>
+        <button
+          @click="$emit('select-page')"
+          class="text-xs font-medium text-primary-700 hover:text-primary-800 dark:text-primary-300 dark:hover:text-primary-200"
+        >
+          {{ t('admin.accounts.bulkActions.selectCurrentPage') }}
+        </button>
+      </template>
+      <template v-if="!allResultsSelected && totalResults > selectedIds.length">
+        <span v-if="selectedIds.length > 0" class="text-gray-300 dark:text-primary-800">•</span>
+        <button
+          :disabled="selectingAll"
+          @click="$emit('select-all-results')"
+          class="text-xs font-medium text-primary-700 hover:text-primary-800 disabled:cursor-not-allowed disabled:opacity-60 dark:text-primary-300 dark:hover:text-primary-200"
+        >
+          {{
+            selectingAll
+              ? t('admin.accounts.bulkActions.selectingAll')
+              : t('admin.accounts.bulkActions.selectAllResults', { count: totalResults })
+          }}
+        </button>
+      </template>
+      <template v-if="selectedIds.length > 0">
+        <span class="text-gray-300 dark:text-primary-800">•</span>
+        <button
+          @click="$emit('clear')"
+          class="text-xs font-medium text-primary-700 hover:text-primary-800 dark:text-primary-300 dark:hover:text-primary-200"
+        >
+          {{ t('admin.accounts.bulkActions.clear') }}
+        </button>
       </template>
     </div>
     <div class="flex gap-2">
@@ -43,13 +62,20 @@
 <script setup lang="ts">
 import { useI18n } from 'vue-i18n'
 
-defineProps<{ selectedIds: number[] }>()
+defineProps<{
+  selectedIds: number[]
+  totalResults: number
+  selectingAll: boolean
+  allResultsSelected: boolean
+}>()
+
 defineEmits([
   'delete',
   'edit-selected',
   'edit-filtered',
   'clear',
   'select-page',
+  'select-all-results',
   'toggle-schedulable',
   'reset-status',
   'refresh-token',
diff --git a/frontend/src/components/admin/account/__tests__/AccountBulkActionsBar.spec.ts b/frontend/src/components/admin/account/__tests__/AccountBulkActionsBar.spec.ts
new file mode 100644
index 0000000000..3316c77935
--- /dev/null
+++ b/frontend/src/components/admin/account/__tests__/AccountBulkActionsBar.spec.ts
@@ -0,0 +1,50 @@
+import { describe, expect, it, vi } from 'vitest'
+import { mount } from '@vue/test-utils'
+
+import AccountBulkActionsBar from '../AccountBulkActionsBar.vue'
+
+vi.mock('vue-i18n', () => ({
+  useI18n: () => ({
+    t: (key: string) => key
+  })
+}))
+
+describe('AccountBulkActionsBar', () => {
+  it('allows selecting all results before any row is selected', async () => {
+    const wrapper = mount(AccountBulkActionsBar, {
+      props: {
+        selectedIds: [],
+        totalResults: 45,
+        selectingAll: false,
+        allResultsSelected: false
+      }
+    })
+
+    const button = wrapper.findAll('button').find(item =>
+      item.text().includes('admin.accounts.bulkActions.selectAllResults')
+    )
+
+    expect(button).toBeDefined()
+    await button!.trigger('click')
+    expect(wrapper.emitted('select-all-results')).toHaveLength(1)
+  })
+
+  it('preserves the upstream billing probe action from v0.1.166', async () => {
+    const wrapper = mount(AccountBulkActionsBar, {
+      props: {
+        selectedIds: [1],
+        totalResults: 45,
+        selectingAll: false,
+        allResultsSelected: false
+      }
+    })
+
+    const button = wrapper.findAll('button').find(item =>
+      item.text().includes('admin.accounts.bulkActions.probeUpstreamBilling')
+    )
+
+    expect(button).toBeDefined()
+    await button!.trigger('click')
+    expect(wrapper.emitted('probe-upstream-billing')).toHaveLength(1)
+  })
+})
diff --git a/frontend/src/i18n/locales/en/admin/accounts.ts b/frontend/src/i18n/locales/en/admin/accounts.ts
index 483459061f..6b17689dd8 100644
--- a/frontend/src/i18n/locales/en/admin/accounts.ts
+++ b/frontend/src/i18n/locales/en/admin/accounts.ts
@@ -388,10 +388,16 @@ export default {
       bulkSchedulableResultUnknown: 'Bulk scheduling result incomplete. Please retry or refresh.',
       bulkActions: {
         selected: '{count} account(s) selected',
+        selectedAll: 'All {count} account(s) selected',
         selectCurrentPage: 'Select this page',
+        selectAllResults: 'Select all results ({count})',
+        selectingAll: 'Selecting all results...',
+        selectAllFailed: 'Failed to load all accounts. The previous selection was kept.',
         clear: 'Clear selection',
         edit: 'Bulk Edit',
         delete: 'Bulk Delete',
+        confirmDelete: 'Delete the selected {count} account(s)? This action cannot be undone.',
+        deleteSuccess: 'Deleted {count} account(s)',
         enableScheduling: 'Enable Scheduling',
         disableScheduling: 'Disable Scheduling',
         resetStatus: 'Reset Status',
diff --git a/frontend/src/i18n/locales/zh/admin/accounts.ts b/frontend/src/i18n/locales/zh/admin/accounts.ts
index 98d22a453a..5ee9f2733b 100644
--- a/frontend/src/i18n/locales/zh/admin/accounts.ts
+++ b/frontend/src/i18n/locales/zh/admin/accounts.ts
@@ -457,10 +457,16 @@ export default {
       bulkSchedulableResultUnknown: '批量调度结果不完整，请稍后重试或刷新列表',
       bulkActions: {
         selected: '已选择 {count} 个账号',
+        selectedAll: '已选择全部 {count} 个账号',
         selectCurrentPage: '本页全选',
+        selectAllResults: '全选所有结果（{count}）',
+        selectingAll: '正在选择全部结果...',
+        selectAllFailed: '获取全部账号失败，原有选择未改变',
         clear: '清除选择',
         edit: '批量编辑账号',
         delete: '批量删除',
+        confirmDelete: '确认删除选中的 {count} 个账号吗？此操作不可恢复。',
+        deleteSuccess: '已成功删除 {count} 个账号',
         enableScheduling: '批量启用调度',
         disableScheduling: '批量停止调度',
         resetStatus: '批量重置状态',
diff --git a/frontend/src/utils/__tests__/accountSelection.spec.ts b/frontend/src/utils/__tests__/accountSelection.spec.ts
new file mode 100644
index 0000000000..9581beb284
--- /dev/null
+++ b/frontend/src/utils/__tests__/accountSelection.spec.ts
@@ -0,0 +1,68 @@
+import { describe, expect, it, vi } from 'vitest'
+
+import { fetchAllAccountIds } from '../accountSelection'
+
+describe('fetchAllAccountIds', () => {
+  it('loads every page with the same filter snapshot and returns unique account IDs', async () => {
+    const fetchPage = vi.fn(async (page: number, pageSize: number, _filters: Record<string, unknown>) => {
+      const start = (page - 1) * pageSize + 1
+      const end = Math.min(page * pageSize, 2505)
+      return {
+        items: Array.from({ length: end - start + 1 }, (_, index) => ({ id: start + index })),
+        total: 2505,
+        page,
+        page_size: pageSize,
+        pages: 3
+      }
+    })
+
+    const filters = {
+      platform: 'grok',
+      status: 'active',
+      search: 'example'
+    }
+
+    const ids = await fetchAllAccountIds(fetchPage, filters)
+
+    expect(ids).toHaveLength(2505)
+    expect(ids[0]).toBe(1)
+    expect(ids[2504]).toBe(2505)
+    expect(fetchPage).toHaveBeenCalledTimes(3)
+    expect(fetchPage).toHaveBeenNthCalledWith(1, 1, 1000, {
+      ...filters,
+      lite: '1',
+      include_scheduler_score: '0'
+    })
+    expect(fetchPage).toHaveBeenNthCalledWith(3, 3, 1000, {
+      ...filters,
+      lite: '1',
+      include_scheduler_score: '0'
+    })
+  })
+
+  it('rejects an incomplete or duplicated result instead of returning a partial selection', async () => {
+    const fetchPage = vi.fn().mockResolvedValue({
+      items: [{ id: 1 }, { id: 1 }],
+      total: 2,
+      page: 1,
+      page_size: 1000,
+      pages: 1
+    })
+
+    await expect(fetchAllAccountIds(fetchPage, {})).rejects.toThrow('账号列表结果不完整')
+  })
+
+  it('propagates a later page failure', async () => {
+    const fetchPage = vi.fn()
+      .mockResolvedValueOnce({
+        items: Array.from({ length: 1000 }, (_, index) => ({ id: index + 1 })),
+        total: 1001,
+        page: 1,
+        page_size: 1000,
+        pages: 2
+      })
+      .mockRejectedValueOnce(new Error('page 2 failed'))
+
+    await expect(fetchAllAccountIds(fetchPage, { group: '7' })).rejects.toThrow('page 2 failed')
+  })
+})
diff --git a/frontend/src/utils/accountSelection.ts b/frontend/src/utils/accountSelection.ts
new file mode 100644
index 0000000000..7afc1dfda2
--- /dev/null
+++ b/frontend/src/utils/accountSelection.ts
@@ -0,0 +1,45 @@
+interface AccountIDRow {
+  id: number
+}
+
+interface AccountListPage {
+  items: AccountIDRow[]
+  total: number
+  pages?: number
+}
+
+type AccountPageFetcher = (
+  page: number,
+  pageSize: number,
+  filters: Record<string, unknown>
+) => Promise<AccountListPage>
+
+const SELECT_ALL_PAGE_SIZE = 1000
+
+export async function fetchAllAccountIds(
+  fetchPage: AccountPageFetcher,
+  filters: Record<string, unknown>
+): Promise<number[]> {
+  const requestFilters = {
+    ...filters,
+    lite: '1',
+    include_scheduler_score: '0'
+  }
+  const firstPage = await fetchPage(1, SELECT_ALL_PAGE_SIZE, requestFilters)
+  const pageCount = Math.max(
+    firstPage.pages ?? 0,
+    Math.ceil(firstPage.total / SELECT_ALL_PAGE_SIZE)
+  )
+  const ids = firstPage.items.map(account => account.id)
+
+  for (let page = 2; page <= pageCount; page++) {
+    const result = await fetchPage(page, SELECT_ALL_PAGE_SIZE, requestFilters)
+    ids.push(...result.items.map(account => account.id))
+  }
+
+  const uniqueIDs = Array.from(new Set(ids))
+  if (uniqueIDs.length !== firstPage.total) {
+    throw new Error('账号列表结果不完整')
+  }
+  return uniqueIDs
+}
diff --git a/frontend/src/views/admin/AccountsView.vue b/frontend/src/views/admin/AccountsView.vue
index 892fd4c22e..bf636a8d14 100644
--- a/frontend/src/views/admin/AccountsView.vue
+++ b/frontend/src/views/admin/AccountsView.vue
@@ -177,6 +177,9 @@
       <template #table>
         <AccountBulkActionsBar
           :selected-ids="selIds"
+          :total-results="pagination.total"
+          :selecting-all="selectingAllResults"
+          :all-results-selected="allResultsSelected"
           @delete="handleBulkDelete"
           @reset-status="handleBulkResetStatus"
           @refresh-token="handleBulkRefreshToken"
@@ -185,6 +188,7 @@
           @edit-filtered="openBulkEditFiltered"
           @clear="clearSelection"
           @select-page="selectPage"
+          @select-all-results="handleSelectAllResults"
           @toggle-schedulable="handleBulkToggleSchedulable"
         />
         <div ref="accountTableRef" class="flex min-h-0 flex-1 flex-col overflow-hidden">
@@ -505,6 +509,7 @@ import PlatformTypeBadge from '@/components/common/PlatformTypeBadge.vue'
 import Icon from '@/components/icons/Icon.vue'
 import ErrorPassthroughRulesModal from '@/components/admin/ErrorPassthroughRulesModal.vue'
 import TLSFingerprintProfilesModal from '@/components/admin/TLSFingerprintProfilesModal.vue'
+import { fetchAllAccountIds } from '@/utils/accountSelection'
 import { buildOpenAIUsageRefreshKey } from '@/utils/accountUsageRefresh'
 import { formatDateTime, formatRelativeTime } from '@/utils/format'
 import { proxyExpiryBadgeClass, proxyExpiryLabelKey } from '@/utils/proxyExpiry'
@@ -913,6 +918,7 @@ const {
 })
 
 const {
+  selectedSet,
   selectedIds: selIds,
   allVisibleSelected,
   isSelected,
@@ -920,16 +926,36 @@ const {
   select,
   deselect,
   toggle: toggleSel,
-  clear: clearSelection,
+  clear: clearSelectedIds,
   removeMany: removeSelectedAccounts,
   toggleVisible,
-  selectVisible: selectPage,
+  selectVisible: selectCurrentPage,
   batchUpdate
 } = useTableSelection<Account>({
   rows: accounts,
   getId: (account) => account.id
 })
 
+const selectingAllResults = ref(false)
+const selectedAllResultIDs = ref<Set<number> | null>(null)
+const selectionRequestVersion = ref(0)
+const allResultsSelected = computed(() => {
+  const snapshot = selectedAllResultIDs.value
+  if (!snapshot || snapshot.size === 0 || snapshot.size !== selectedSet.value.size) return false
+  return Array.from(snapshot).every(id => selectedSet.value.has(id))
+})
+
+const clearSelection = () => {
+  selectionRequestVersion.value++
+  selectingAllResults.value = false
+  selectedAllResultIDs.value = null
+  clearSelectedIds()
+}
+
+const selectPage = () => {
+  selectCurrentPage()
+}
+
 const swipeVirtualContext: SwipeSelectVirtualContext = {
   getVirtualizer: () => dataTableRef.value?.virtualizer ?? null,
   getSortedData: () => dataTableRef.value?.sortedData ?? accounts.value,
@@ -997,6 +1023,7 @@ const refreshUpstreamBillingSortedList = async (force = false) => {
 }
 
 const debouncedReload = () => {
+  clearSelection()
   syncAccountListDerivedParams()
   hasPendingListSync.value = false
   resetAutoRefreshCache()
@@ -1491,7 +1518,27 @@ const toggleSelectAllVisible = (event: Event) => {
   const target = event.target as HTMLInputElement
   toggleVisible(target.checked)
 }
-const handleBulkDelete = async () => { if(!confirm(t('common.confirm'))) return; try { await Promise.all(selIds.value.map(id => adminAPI.accounts.delete(id))); clearSelection(); reload() } catch (error) { console.error('Failed to bulk delete accounts:', error) } }
+const handleBulkDelete = async () => {
+  const accountIds = [...selIds.value]
+  if (!confirm(t('admin.accounts.bulkActions.confirmDelete', { count: accountIds.length }))) return
+  try {
+    const result = await adminAPI.accounts.batchDelete(accountIds)
+    if (result.failed > 0) {
+      appStore.showError(t('admin.accounts.bulkActions.partialSuccess', {
+        success: result.success,
+        failed: result.failed
+      }))
+      setSelectedIds(result.failed_ids?.length ? result.failed_ids : accountIds)
+    } else {
+      appStore.showSuccess(t('admin.accounts.bulkActions.deleteSuccess', { count: result.success }))
+      clearSelection()
+    }
+    await reload()
+  } catch (error) {
+    console.error('Failed to bulk delete accounts:', error)
+    appStore.showError(String(error))
+  }
+}
 const handleBulkResetStatus = async () => {
   if (!confirm(t('common.confirm'))) return
   try {
@@ -1675,6 +1722,32 @@ const buildBulkEditFilterSnapshot = () => {
   }
 }
 
+const handleSelectAllResults = async () => {
+  if (selectingAllResults.value || pagination.total === 0) return
+
+  const requestVersion = ++selectionRequestVersion.value
+  const filters = buildBulkEditFilterSnapshot()
+  selectingAllResults.value = true
+  try {
+    const ids = await fetchAllAccountIds(
+      (page, pageSize, requestFilters) => adminAPI.accounts.list(page, pageSize, requestFilters),
+      filters
+    )
+    if (requestVersion !== selectionRequestVersion.value) return
+
+    setSelectedIds(ids)
+    selectedAllResultIDs.value = new Set(ids)
+  } catch (error) {
+    if (requestVersion !== selectionRequestVersion.value) return
+    console.error('Failed to select all account results:', error)
+    appStore.showError(t('admin.accounts.bulkActions.selectAllFailed'))
+  } finally {
+    if (requestVersion === selectionRequestVersion.value) {
+      selectingAllResults.value = false
+    }
+  }
+}
+
 const collectSelectionMetadata = (rows: Account[]) => {
   const selectedPlatforms = Array.from(new Set(rows.map(account => account.platform)))
   const selectedTypes = Array.from(new Set(rows.map(account => account.type)))
diff --git a/frontend/src/views/admin/__tests__/AccountsView.selectAllResults.spec.ts b/frontend/src/views/admin/__tests__/AccountsView.selectAllResults.spec.ts
new file mode 100644
index 0000000000..e3fe225224
--- /dev/null
+++ b/frontend/src/views/admin/__tests__/AccountsView.selectAllResults.spec.ts
@@ -0,0 +1,228 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+import { flushPromises, mount } from '@vue/test-utils'
+
+import AccountsView from '../AccountsView.vue'
+
+const {
+  listAccounts,
+  listWithEtag,
+  getBatchTodayStats,
+  getUpstreamBillingProbeSettings,
+  getAllProxies,
+  getAllGroups,
+  showError
+} = vi.hoisted(() => ({
+  listAccounts: vi.fn(),
+  listWithEtag: vi.fn(),
+  getBatchTodayStats: vi.fn(),
+  getUpstreamBillingProbeSettings: vi.fn(),
+  getAllProxies: vi.fn(),
+  getAllGroups: vi.fn(),
+  showError: vi.fn()
+}))
+
+vi.mock('@/api/admin', () => ({
+  adminAPI: {
+    accounts: {
+      list: listAccounts,
+      listWithEtag,
+      getBatchTodayStats,
+      getUpstreamBillingProbeSettings,
+      batchDelete: vi.fn(),
+      batchClearError: vi.fn(),
+      batchRefresh: vi.fn(),
+      bulkUpdate: vi.fn()
+    },
+    proxies: {
+      getAll: getAllProxies
+    },
+    groups: {
+      getAll: getAllGroups
+    }
+  }
+}))
+
+vi.mock('@/stores/app', () => ({
+  useAppStore: () => ({
+    showError,
+    showSuccess: vi.fn(),
+    showInfo: vi.fn()
+  })
+}))
+
+vi.mock('@/stores/auth', () => ({
+  useAuthStore: () => ({
+    token: 'test-token'
+  })
+}))
+
+vi.mock('vue-i18n', async () => {
+  const actual = await vi.importActual<typeof import('vue-i18n')>('vue-i18n')
+  return {
+    ...actual,
+    useI18n: () => ({
+      t: (key: string) => key
+    })
+  }
+})
+
+const makeAccounts = (count: number) => Array.from({ length: count }, (_, index) => ({
+  id: index + 1,
+  name: `account-${index + 1}`,
+  platform: 'grok',
+  type: 'oauth',
+  status: 'active',
+  schedulable: true,
+  created_at: '2026-07-23T00:00:00Z',
+  updated_at: '2026-07-23T00:00:00Z'
+}))
+
+const AccountBulkActionsBarStub = {
+  props: ['selectedIds', 'totalResults', 'selectingAll', 'allResultsSelected'],
+  emits: ['select-all-results', 'select-page', 'clear'],
+  template: `
+    <div>
+      <span data-test="selected-count">{{ selectedIds.length }}</span>
+      <span data-test="total-results">{{ totalResults }}</span>
+      <span data-test="all-results-selected">{{ String(allResultsSelected) }}</span>
+      <button data-test="select-page" @click="$emit('select-page')">select page</button>
+      <button data-test="select-all-results" @click="$emit('select-all-results')">select all</button>
+      <button data-test="clear" @click="$emit('clear')">clear</button>
+    </div>
+  `
+}
+
+const AccountTableFiltersStub = {
+  emits: ['change'],
+  template: '<button data-test="change-filter" @click="$emit(\'change\')">change filter</button>'
+}
+
+const mountView = () => mount(AccountsView, {
+  global: {
+    stubs: {
+      AppLayout: { template: '<div><slot /></div>' },
+      TablePageLayout: {
+        template: '<div><slot name="filters" /><slot name="table" /><slot name="pagination" /></div>'
+      },
+      DataTable: { props: ['data'], template: '<div data-test="data-table"></div>' },
+      Pagination: true,
+      ConfirmDialog: true,
+      AccountTableActions: { template: '<div><slot name="beforeCreate" /><slot name="after" /></div>' },
+      AccountTableFilters: AccountTableFiltersStub,
+      AccountBulkActionsBar: AccountBulkActionsBarStub,
+      AccountActionMenu: true,
+      ImportDataModal: true,
+      ReAuthAccountModal: true,
+      AccountTestModal: true,
+      AccountStatsModal: true,
+      ScheduledTestsPanel: true,
+      SyncFromCrsModal: true,
+      TempUnschedStatusModal: true,
+      ErrorPassthroughRulesModal: true,
+      TLSFingerprintProfilesModal: true,
+      CreateAccountModal: true,
+      EditAccountModal: true,
+      BulkEditAccountModal: true,
+      PlatformTypeBadge: true,
+      AccountCapacityCell: true,
+      AccountStatusIndicator: true,
+      AccountTodayStatsCell: true,
+      AccountGroupsCell: true,
+      AccountUsageCell: true,
+      Icon: true
+    }
+  }
+})
+
+describe('admin AccountsView select all filtered results', () => {
+  beforeEach(() => {
+    localStorage.clear()
+    listAccounts.mockReset()
+    listWithEtag.mockReset()
+    getBatchTodayStats.mockReset()
+    getUpstreamBillingProbeSettings.mockReset()
+    getAllProxies.mockReset()
+    getAllGroups.mockReset()
+    showError.mockReset()
+
+    listWithEtag.mockResolvedValue({
+      notModified: true,
+      etag: null,
+      data: null
+    })
+    getBatchTodayStats.mockResolvedValue({ stats: {} })
+    getUpstreamBillingProbeSettings.mockResolvedValue({ enabled: true, interval_minutes: 30 })
+    getAllProxies.mockResolvedValue([])
+    getAllGroups.mockResolvedValue([])
+  })
+
+  it('selects all matching IDs in one commit and clears the selection when filters change', async () => {
+    const allAccounts = makeAccounts(45)
+    listAccounts.mockImplementation(async (_page: number, pageSize: number) => {
+      if (pageSize === 1000) {
+        return {
+          items: allAccounts,
+          total: 45,
+          page: 1,
+          page_size: 1000,
+          pages: 1
+        }
+      }
+      return {
+        items: allAccounts.slice(0, 20),
+        total: 45,
+        page: 1,
+        page_size: 20,
+        pages: 3
+      }
+    })
+
+    const wrapper = mountView()
+    await flushPromises()
+
+    await wrapper.get('[data-test="select-all-results"]').trigger('click')
+    await flushPromises()
+
+    expect(wrapper.get('[data-test="selected-count"]').text()).toBe('45')
+    expect(wrapper.get('[data-test="total-results"]').text()).toBe('45')
+    expect(wrapper.get('[data-test="all-results-selected"]').text()).toBe('true')
+    expect(listAccounts).toHaveBeenCalledWith(1, 1000, expect.objectContaining({
+      lite: '1',
+      include_scheduler_score: '0'
+    }))
+
+    await wrapper.get('[data-test="change-filter"]').trigger('click')
+
+    expect(wrapper.get('[data-test="selected-count"]').text()).toBe('0')
+    expect(wrapper.get('[data-test="all-results-selected"]').text()).toBe('false')
+  })
+
+  it('keeps the original page selection when loading all results fails', async () => {
+    const currentPage = makeAccounts(20)
+    listAccounts.mockImplementation(async (_page: number, pageSize: number) => {
+      if (pageSize === 1000) {
+        throw new Error('load all failed')
+      }
+      return {
+        items: currentPage,
+        total: 45,
+        page: 1,
+        page_size: 20,
+        pages: 3
+      }
+    })
+
+    const wrapper = mountView()
+    await flushPromises()
+
+    await wrapper.get('[data-test="select-page"]').trigger('click')
+    expect(wrapper.get('[data-test="selected-count"]').text()).toBe('20')
+
+    await wrapper.get('[data-test="select-all-results"]').trigger('click')
+    await flushPromises()
+
+    expect(wrapper.get('[data-test="selected-count"]').text()).toBe('20')
+    expect(wrapper.get('[data-test="all-results-selected"]').text()).toBe('false')
+    expect(showError).toHaveBeenCalledWith('admin.accounts.bulkActions.selectAllFailed')
+  })
+})