diff --git a/web/src/lib/api/client/app/crm/tasks/searchTasks.ts b/web/src/lib/api/client/app/crm/tasks/searchTasks.ts
new file mode 100644
index 00000000..05892845
--- /dev/null
+++ b/web/src/lib/api/client/app/crm/tasks/searchTasks.ts
@@ -0,0 +1,21 @@
+import type SearchTasks from "@/lib/api/models/app/crm/SearchTasks";
+import type TasksSearchResult from "@/lib/api/models/app/crm/TasksSearchResult";
+import Request from "../../../Request";
+
+export default async function searchTasks(
+    filters: SearchTasks,
+    offset = 0,
+    limit = 50,
+): Promise<TasksSearchResult> {
+    const qs = new URLSearchParams();
+    if (offset) qs.set("offset", String(offset));
+    if (limit) qs.set("limit", String(limit));
+    const suffix = qs.toString() ? `?${qs.toString()}` : "";
+
+    return await Request<TasksSearchResult>({
+        method: "POST",
+        url: `/crm/tasks/search${suffix}`,
+        data: filters,
+        authorization: true,
+    });
+}
diff --git a/web/src/lib/api/client/app/crm/tasks/tasksSummary.ts b/web/src/lib/api/client/app/crm/tasks/tasksSummary.ts
new file mode 100644
index 00000000..8e184014
--- /dev/null
+++ b/web/src/lib/api/client/app/crm/tasks/tasksSummary.ts
@@ -0,0 +1,12 @@
+import type SearchTasks from "@/lib/api/models/app/crm/SearchTasks";
+import type { TasksSummary } from "@/lib/api/models/app/crm/TasksSearchResult";
+import Request from "../../../Request";
+
+export default async function tasksSummary(filters: SearchTasks): Promise<TasksSummary> {
+    return await Request<TasksSummary>({
+        method: "POST",
+        url: "/crm/tasks/summary",
+        data: filters,
+        authorization: true,
+    });
+}
diff --git a/web/src/lib/api/hooks/app/crm/tasks/useSearchTasks.ts b/web/src/lib/api/hooks/app/crm/tasks/useSearchTasks.ts
new file mode 100644
index 00000000..f71c679e
--- /dev/null
+++ b/web/src/lib/api/hooks/app/crm/tasks/useSearchTasks.ts
@@ -0,0 +1,41 @@
+import { useInfiniteQuery, type InfiniteData } from "@tanstack/react-query";
+import type SearchTasks from "@/lib/api/models/app/crm/SearchTasks";
+import type TasksSearchResult from "@/lib/api/models/app/crm/TasksSearchResult";
+import searchTasks from "@/lib/api/client/app/crm/tasks/searchTasks";
+
+interface UseSearchTasksProps {
+    filters: SearchTasks;
+    limit?: number;
+    enabled?: boolean;
+}
+
+// Server-driven tasks fetch that scales to thousands of rows. Offset-paginated
+// (the backend uses offset rather than a keyset cursor so nullable due-date
+// sorts don't drop rows), so the page param is the next offset. Pages flatten
+// into a single `tasks` list and `total` comes straight off the server so the
+// UI can show "N of M loaded".
+export default function useSearchTasks({ filters, limit = 50, enabled = true }: UseSearchTasksProps) {
+    const queryResult = useInfiniteQuery<
+        TasksSearchResult,
+        Error,
+        InfiniteData<TasksSearchResult, number>,
+        [string, string, string, SearchTasks, number],
+        number
+    >({
+        queryKey: ["crm", "tasks", "search", filters, limit],
+        queryFn: async ({ pageParam }) => searchTasks(filters, pageParam, limit),
+        initialPageParam: 0,
+        getNextPageParam: (lastPage) =>
+            lastPage.pagination.has_more ? (lastPage.pagination.next_offset ?? undefined) : undefined,
+        staleTime: 30_000,
+        enabled,
+    });
+
+    const tasks = queryResult.data?.pages
+        .flatMap((p) => p.data ?? [])
+        .filter((t): t is NonNullable<typeof t> => t != null);
+
+    const total = queryResult.data?.pages[0]?.pagination.total ?? 0;
+
+    return { ...queryResult, tasks, total };
+}
diff --git a/web/src/lib/api/hooks/app/crm/tasks/useTasksSummary.ts b/web/src/lib/api/hooks/app/crm/tasks/useTasksSummary.ts
new file mode 100644
index 00000000..3a1f36a5
--- /dev/null
+++ b/web/src/lib/api/hooks/app/crm/tasks/useTasksSummary.ts
@@ -0,0 +1,15 @@
+import { useQuery } from "@tanstack/react-query";
+import type SearchTasks from "@/lib/api/models/app/crm/SearchTasks";
+import tasksSummary from "@/lib/api/client/app/crm/tasks/tasksSummary";
+
+// Server-aggregated totals for the same filter the table renders. Kept as a
+// separate query (not folded into the list) so the header stats stay correct
+// over the whole set while the rows page in.
+export default function useTasksSummary(filters: SearchTasks, enabled = true) {
+    return useQuery({
+        queryKey: ["crm", "tasks", "summary", filters],
+        queryFn: () => tasksSummary(filters),
+        staleTime: 30_000,
+        enabled,
+    });
+}
diff --git a/web/src/lib/api/models/app/crm/SearchTasks.ts b/web/src/lib/api/models/app/crm/SearchTasks.ts
new file mode 100644
index 00000000..8548d327
--- /dev/null
+++ b/web/src/lib/api/models/app/crm/SearchTasks.ts
@@ -0,0 +1,42 @@
+// Filter body for POST /crm/tasks/search and /crm/tasks/summary. Every field
+// is optional; an empty body matches every task in the org (the "All tasks"
+// default). The same body drives the rows and the summary totals, so a header
+// number always reflects the exact filter shown below it.
+
+import type { CRMTaskPriority, CRMTaskStatus } from "@/lib/api/models/app/crm/CRMTask";
+
+export type TaskSortBy =
+    | "created_at"
+    | "updated_at"
+    | "due_date"
+    | "priority"
+    | "title";
+
+export default interface SearchTasks {
+    query: string;
+    statuses: CRMTaskStatus[];
+    priorities: CRMTaskPriority[];
+    // Task type NAMEs (crm_tasks.type), e.g. ["Call", "Email"].
+    types: string[];
+    // User UUIDs (assigned_to). String-matched on the server.
+    assigned_to: string[];
+    contact_id?: string;
+    deal_id?: string;
+    due_after?: string;
+    due_before?: string;
+    // due_date < now() AND status NOT IN ('completed','cancelled').
+    overdue?: boolean;
+    sort_by: TaskSortBy;
+    // false => DESC (default), true => ASC.
+    reverse: boolean;
+}
+
+export const EMPTY_TASK_SEARCH: SearchTasks = {
+    query: "",
+    statuses: [],
+    priorities: [],
+    types: [],
+    assigned_to: [],
+    sort_by: "created_at",
+    reverse: false,
+};
diff --git a/web/src/lib/api/models/app/crm/TasksSearchResult.ts b/web/src/lib/api/models/app/crm/TasksSearchResult.ts
new file mode 100644
index 00000000..b962af8a
--- /dev/null
+++ b/web/src/lib/api/models/app/crm/TasksSearchResult.ts
@@ -0,0 +1,29 @@
+import type CRMTask from "@/lib/api/models/app/crm/CRMTask";
+
+export interface TasksSearchPagination {
+    total: number;
+    limit: number;
+    offset: number;
+    has_more: boolean;
+    next_offset?: number | null;
+}
+
+export default interface TasksSearchResult {
+    data: CRMTask[];
+    pagination: TasksSearchPagination;
+}
+
+// Server-aggregated totals over a SearchTasks filter. Every number here is a
+// COUNT over the whole matching set — never a client reduce over a loaded
+// page — so the header stats stay honest at scale.
+export interface TasksSummary {
+    total: number;
+    pending_count: number;
+    in_progress_count: number;
+    completed_count: number;
+    cancelled_count: number;
+    // due_date < now() AND status NOT IN ('completed','cancelled').
+    overdue_count: number;
+    // priority IN ('high','urgent').
+    high_priority_count: number;
+}