diff --git a/src/components/buyer-tasks/buyer-task-group-card.test.tsx b/src/components/buyer-tasks/buyer-task-group-card.test.tsx
new file mode 100644
index 0000000..0ad2182
--- /dev/null
+++ b/src/components/buyer-tasks/buyer-task-group-card.test.tsx
@@ -0,0 +1,63 @@
+import { describe, it, expect, vi } from "vitest";
+import { render, screen, fireEvent } from "@testing-library/react";
+import { BuyerTaskGroupCard } from "./buyer-task-group-card";
+
+const baseGroup = {
+  groupId: "order-1::sup-1",
+  orderId: "order-1",
+  orderNumber: "ORD-001",
+  supplierId: "sup-1",
+  supplierName: "Steel Co",
+  customerName: "J. Smith",
+  companyName: "Acme",
+  items: [
+    { id: "item-1", description: "HSS drill", quantity: 2, costPrice: 25, sellingPrice: 50 },
+  ],
+  itemCount: 1,
+  totalCost: 50,
+  purchaseOrderId: null,
+  poStatus: null,
+  step: "needs_po" as const,
+};
+
+describe("BuyerTaskGroupCard", () => {
+  it("renders order, supplier, customer info", () => {
+    render(<BuyerTaskGroupCard group={baseGroup} onAction={vi.fn()} />);
+    expect(screen.getByText("ORD-001")).toBeInTheDocument();
+    expect(screen.getByText("Steel Co")).toBeInTheDocument();
+    expect(screen.getByText("J. Smith", { exact: true })).toBeInTheDocument();
+    expect(screen.getByText("Acme", { exact: true })).toBeInTheDocument();
+  });
+
+  it("renders the right action button per step", () => {
+    const cases: Array<{ step: "needs_po" | "po_draft" | "po_sent"; label: RegExp }> = [
+      { step: "needs_po", label: /generate po/i },
+      { step: "po_draft", label: /send po/i },
+      { step: "po_sent", label: /mark as ready/i },
+    ];
+    for (const { step, label } of cases) {
+      const { unmount } = render(
+        <BuyerTaskGroupCard group={{ ...baseGroup, step }} onAction={vi.fn()} />
+      );
+      expect(
+        screen.getByTestId(`buyer-task-action-${baseGroup.groupId}-${step}`)
+      ).toHaveTextContent(label);
+      unmount();
+    }
+  });
+
+  it("calls onAction when the button is clicked", () => {
+    const onAction = vi.fn();
+    render(<BuyerTaskGroupCard group={baseGroup} onAction={onAction} />);
+    fireEvent.click(
+      screen.getByTestId(`buyer-task-action-${baseGroup.groupId}-${baseGroup.step}`)
+    );
+    expect(onAction).toHaveBeenCalledWith(baseGroup);
+  });
+
+  it("renders the items list", () => {
+    render(<BuyerTaskGroupCard group={baseGroup} onAction={vi.fn()} />);
+    fireEvent.click(screen.getByTestId("buyer-task-items-toggle"));
+    expect(screen.getByText("HSS drill")).toBeInTheDocument();
+  });
+});
diff --git a/src/components/buyer-tasks/buyer-task-group-card.tsx b/src/components/buyer-tasks/buyer-task-group-card.tsx
new file mode 100644
index 0000000..54e4400
--- /dev/null
+++ b/src/components/buyer-tasks/buyer-task-group-card.tsx
@@ -0,0 +1,60 @@
+"use client";
+
+import { Card, CardContent } from "@/components/ui/card";
+import { Button } from "@/components/ui/button";
+import { BuyerTaskItemsList, type BuyerTaskItem } from "./buyer-task-items-list";
+import type { BuyerTaskGroup } from "@/lib/server/buyer-tasks-service";
+
+const ACTION_LABEL: Record<BuyerTaskGroup["step"], string> = {
+  needs_po: "Generate PO",
+  po_draft: "Send PO",
+  po_sent: "Mark as ready",
+};
+
+const ACTION_CLASS: Record<BuyerTaskGroup["step"], string> = {
+  needs_po: "bg-blue-600 hover:bg-blue-700 text-white",
+  po_draft: "bg-amber-500 hover:bg-amber-600 text-white",
+  po_sent: "bg-purple-600 hover:bg-purple-700 text-white",
+};
+
+export function BuyerTaskGroupCard({
+  group,
+  onAction,
+  disabled,
+}: {
+  group: BuyerTaskGroup;
+  onAction: (group: BuyerTaskGroup) => void;
+  disabled?: boolean;
+}) {
+  return (
+    <Card data-testid={`buyer-task-group-${group.groupId}`}>
+      <CardContent className="p-0">
+        <div className="flex items-start gap-3 p-3">
+          <div className="min-w-0 flex-1">
+            <div className="flex items-baseline gap-2">
+              <span className="font-mono text-sm font-medium">{group.orderNumber}</span>
+              <span className="text-sm text-muted-foreground">·</span>
+              <span className="text-sm font-medium">{group.supplierName}</span>
+            </div>
+            <div className="text-xs text-muted-foreground mt-0.5">
+              <span>{group.customerName}</span><span aria-hidden="true"> · </span><span>{group.companyName}</span>
+            </div>
+            <div className="text-xs text-muted-foreground mt-1">
+              {group.itemCount} item{group.itemCount === 1 ? "" : "s"} · Cost R{group.totalCost.toFixed(2)}
+            </div>
+          </div>
+          <Button
+            type="button"
+            onClick={() => onAction(group)}
+            disabled={disabled}
+            className={ACTION_CLASS[group.step]}
+            data-testid={`buyer-task-action-${group.groupId}-${group.step}`}
+          >
+            {ACTION_LABEL[group.step]}
+          </Button>
+        </div>
+        <BuyerTaskItemsList items={group.items as BuyerTaskItem[]} />
+      </CardContent>
+    </Card>
+  );
+}
diff --git a/src/test-setup.ts b/src/test-setup.ts
index 9a41425..4110b52 100644
--- a/src/test-setup.ts
+++ b/src/test-setup.ts
@@ -1 +1,7 @@
-import "@testing-library/jest-dom/vitest";
\ No newline at end of file
+import "@testing-library/jest-dom/vitest";
+import { afterEach } from "vitest";
+import { cleanup } from "@testing-library/react";
+
+afterEach(() => {
+  cleanup();
+});
\ No newline at end of file