diff --git a/.changeset/sparkly-paths-sort.md b/.changeset/sparkly-paths-sort.md
new file mode 100644
index 000000000..bd47578b3
--- /dev/null
+++ b/.changeset/sparkly-paths-sort.md
@@ -0,0 +1,5 @@
+---
+'@tanstack/form-core': patch
+---
+
+Bump TanStack pacer to pacer-lite for reduced custom event emissions.
diff --git a/packages/form-core/package.json b/packages/form-core/package.json
index 898c25e38..a6db884f3 100644
--- a/packages/form-core/package.json
+++ b/packages/form-core/package.json
@@ -52,7 +52,7 @@
   ],
   "dependencies": {
     "@tanstack/devtools-event-client": "^0.3.5",
-    "@tanstack/pacer": "^0.15.3",
+    "@tanstack/pacer-lite": "^0.1.1",
     "@tanstack/store": "^0.7.7"
   },
   "devDependencies": {
diff --git a/packages/form-core/src/FormApi.ts b/packages/form-core/src/FormApi.ts
index 319b98531..2247e0590 100644
--- a/packages/form-core/src/FormApi.ts
+++ b/packages/form-core/src/FormApi.ts
@@ -1,5 +1,4 @@
 import { Derived, Store, batch } from '@tanstack/store'
-import { throttle } from '@tanstack/pacer'
 import {
   deleteBy,
   determineFormLevelErrorSourceAndValue,
@@ -12,16 +11,18 @@ import {
   isNonEmptyArray,
   mergeOpts,
   setBy,
+  throttleFormState,
   uuid,
 } from './utils'
 import { defaultValidationLogic } from './ValidationLogic'
-
 import {
   isStandardSchemaValidator,
   standardSchemaValidators,
 } from './standardSchemaValidator'
 import { defaultFieldMeta, metaHelper } from './metaHelper'
 import { formEventClient } from './EventClient'
+
+// types
 import type { ValidationLogicFn } from './ValidationLogic'
 import type {
   StandardSchemaV1,
@@ -1310,20 +1311,9 @@ export class FormApi<
 
     this.update(opts || {})
 
-    const debouncedDevtoolState = throttle(
-      (state: AnyFormState) =>
-        formEventClient.emit('form-state', {
-          id: this._formId,
-          state: state,
-        }),
-      {
-        wait: 300,
-      },
-    )
-
     // devtool broadcasts
     this.store.subscribe(() => {
-      debouncedDevtoolState(this.store.state)
+      throttleFormState(this)
     })
 
     // devtool requests
diff --git a/packages/form-core/src/utils.ts b/packages/form-core/src/utils.ts
index cf9383d84..788c7c14b 100644
--- a/packages/form-core/src/utils.ts
+++ b/packages/form-core/src/utils.ts
@@ -1,7 +1,8 @@
-import { defaultValidationLogic } from './ValidationLogic'
+import { liteThrottle } from '@tanstack/pacer-lite'
+import { formEventClient } from './EventClient'
 import type { ValidationLogicProps } from './ValidationLogic'
 import type { FieldValidators } from './FieldApi'
-import type { FormValidators } from './FormApi'
+import type { AnyFormApi, FormValidators } from './FormApi'
 import type {
   GlobalFormValidationError,
   ValidationCause,
@@ -603,3 +604,14 @@ export function uuid(): string {
   IDX++
   return out
 }
+
+export const throttleFormState = liteThrottle(
+  (form: AnyFormApi) =>
+    formEventClient.emit('form-state', {
+      id: form.formId,
+      state: form.store.state,
+    }),
+  {
+    wait: 300,
+  },
+)
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 6236d8c4e..2f30b1fee 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -1233,9 +1233,9 @@ importers:
       '@tanstack/devtools-event-client':
         specifier: ^0.3.5
         version: 0.3.5
-      '@tanstack/pacer':
-        specifier: ^0.15.3
-        version: 0.15.4
+      '@tanstack/pacer-lite':
+        specifier: ^0.1.1
+        version: 0.1.1
       '@tanstack/store':
         specifier: ^0.7.7
         version: 0.7.7
@@ -4791,8 +4791,8 @@ packages:
     resolution: {integrity: sha512-B7+x7eP2FFvi3fgd3rNH9o/Eixt+pp0zCIdGhnQbAJjFrlwIKGjGnwyJjhWJ5fMQlGks/E2LdDTqEV4W9Plx7g==}
     engines: {node: '>=12'}
 
-  '@tanstack/pacer@0.15.4':
-    resolution: {integrity: sha512-vGY+CWsFZeac3dELgB6UZ4c7OacwsLb8hvL2gLS6hTgy8Fl0Bm/aLokHaeDIP+q9F9HUZTnp360z9uv78eg8pg==}
+  '@tanstack/pacer-lite@0.1.1':
+    resolution: {integrity: sha512-y/xtNPNt/YeyoVxE/JCx+T7yjEzpezmbb+toK8DDD1P4m7Kzs5YR956+7OKexG3f8aXgC3rLZl7b1V+yNUSy5w==}
     engines: {node: '>=18'}
 
   '@tanstack/query-core@5.90.5':
@@ -14259,10 +14259,7 @@ snapshots:
 
   '@tanstack/history@1.133.28': {}
 
-  '@tanstack/pacer@0.15.4':
-    dependencies:
-      '@tanstack/devtools-event-client': 0.3.5
-      '@tanstack/store': 0.7.7
+  '@tanstack/pacer-lite@0.1.1': {}
 
   '@tanstack/query-core@5.90.5': {}