diff --git a/backend/app/models/webhook.py b/backend/app/models/webhook.py
new file mode 100644
index 0000000..2d30618
--- /dev/null
+++ b/backend/app/models/webhook.py
@@ -0,0 +1,15 @@
+"""Webhook config model."""
+from sqlalchemy import Column, String, Integer, Text, Boolean, ForeignKey
+from app.models.base import Base, TimestampMixin, TenantMixin
+
+
+class WebhookConfig(Base, TimestampMixin, TenantMixin):
+    """Webhook subscription for external integrations."""
+    __tablename__ = "webhook_configs"
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    project_id = Column(Integer, ForeignKey("projects.id"), nullable=True)
+    url = Column(String(500), nullable=False)
+    events = Column(Text, default="[]")  # JSON: ["task_completed","review_pending","budget_alert"]
+    secret = Column(String(200), nullable=True)
+    is_active = Column(Boolean, default=True)