diff --git a/.changeset/chilled-rivers-grab.md b/.changeset/chilled-rivers-grab.md
new file mode 100644
index 000000000..5b3b27ebb
--- /dev/null
+++ b/.changeset/chilled-rivers-grab.md
@@ -0,0 +1,5 @@
+---
+"@trigger.dev/core": patch
+---
+
+feat: Add $not to eventFilters
diff --git a/packages/core/src/eventFilterMatches.ts b/packages/core/src/eventFilterMatches.ts
index 27c7a573b..c175797a5 100644
--- a/packages/core/src/eventFilterMatches.ts
+++ b/packages/core/src/eventFilterMatches.ts
@@ -198,5 +198,15 @@ function contentFilterMatches(actualValue: any, contentFilter: ContentFilters[nu
     return actualValue !== null;
   }
 
+  if ("$not" in contentFilter) {
+    if (Array.isArray(actualValue)) {
+      return !actualValue.includes(contentFilter.$not);
+    } else if (typeof actualValue === 'number' || typeof actualValue === 'boolean' || typeof actualValue === 'string') {
+      return actualValue !== contentFilter.$not;
+    }
+
+    return false;
+  }
+
   return true;
 }
diff --git a/packages/core/src/schemas/eventFilter.ts b/packages/core/src/schemas/eventFilter.ts
index d07dc9009..81be2e7c1 100644
--- a/packages/core/src/schemas/eventFilter.ts
+++ b/packages/core/src/schemas/eventFilter.ts
@@ -52,6 +52,9 @@ const EventMatcherSchema = z.union([
       z.object({
         $includes: z.union([z.string(), z.number(), z.boolean()]),
       }),
+      z.object({
+        $not: z.union([z.string(), z.number(), z.boolean()])
+      })
     ])
   ),
 ]);
diff --git a/packages/core/test/eventFilterMatches.test.ts b/packages/core/test/eventFilterMatches.test.ts
index 4a9249b45..9209ed3c8 100644
--- a/packages/core/test/eventFilterMatches.test.ts
+++ b/packages/core/test/eventFilterMatches.test.ts
@@ -252,6 +252,54 @@ describe("eventFilterMatches", () => {
     expect(eventFilterMatches(payload, filter)).toBe(true);
   });
 
+  it("should return true when payload matches an not condition", () => {
+    const payload = {
+      name: "John",
+      age: 30,
+      score: 100,
+      isAdmin: false,
+      hobbies: ["reading", "swimming"],
+      address: {
+        street: "123 Main St",
+        city: "Anytown",
+        state: "CA",
+        zip: "12345",
+      },
+    };
+    const filter: EventFilter = {
+      hobbies: [{ $not: "gaming" }],
+      age: [{ $not: 39 }],
+      isAdmin: [{ $not: true }],
+      name: [{ $not: 'Test' }]
+    };
+
+    expect(eventFilterMatches(payload, filter)).toBe(true);
+  });
+
+  it("should return false when payload not matches an not condition", () => {
+    const payload = {
+      name: "John",
+      age: 30,
+      score: 100,
+      isAdmin: false,
+      hobbies: ["reading", "swimming"],
+      address: {
+        street: "123 Main St",
+        city: "Anytown",
+        state: "CA",
+        zip: "12345",
+      },
+    };
+    const filter: EventFilter = {
+      hobbies: [{ $not: "reading" }],
+      age: [{ $not: 30 }],
+      isAdmin: [{ $not: false }],
+      name: [{ $not: 'John' }]
+    };
+
+    expect(eventFilterMatches(payload, filter)).toBe(false);
+  });
+
   it("should return true when payload matches an ignoreCaseEquals condition", () => {
     const payload = {
       name: "John",