diff --git a/packages/react/src/SuperDocEditor.test.tsx b/packages/react/src/SuperDocEditor.test.tsx
index c93b3af722..b944661d85 100644
--- a/packages/react/src/SuperDocEditor.test.tsx
+++ b/packages/react/src/SuperDocEditor.test.tsx
@@ -117,6 +117,46 @@ describe('SuperDocEditor', () => {
         { timeout: 5000 },
       );
     });
+
+    it('should route onTransaction through the latest callback after rerender', async () => {
+      const ref = createRef<SuperDocRef>();
+      const onReady = vi.fn();
+      const firstOnTransaction = vi.fn();
+      const secondOnTransaction = vi.fn();
+
+      const { rerender } = render(<SuperDocEditor ref={ref} onReady={onReady} onTransaction={firstOnTransaction} />);
+
+      await waitFor(() => expect(onReady).toHaveBeenCalled(), { timeout: 5000 });
+
+      const instance = ref.current?.getInstance();
+      expect(instance).toBeTruthy();
+
+      const transactionEvent = {
+        editor: {},
+        sourceEditor: {},
+        transaction: { docChanged: true },
+        surface: 'body',
+      };
+
+      const firstCallCountBeforeManualDispatch = firstOnTransaction.mock.calls.length;
+      (instance as any).config.onTransaction(transactionEvent);
+
+      expect(firstOnTransaction).toHaveBeenLastCalledWith(transactionEvent);
+      expect(firstOnTransaction).toHaveBeenCalledTimes(firstCallCountBeforeManualDispatch + 1);
+      expect(secondOnTransaction).not.toHaveBeenCalled();
+
+      rerender(<SuperDocEditor ref={ref} onReady={onReady} onTransaction={secondOnTransaction} />);
+
+      expect(ref.current?.getInstance()).toBe(instance);
+
+      const firstCallCountBeforeRerenderDispatch = firstOnTransaction.mock.calls.length;
+      const secondCallCountBeforeManualDispatch = secondOnTransaction.mock.calls.length;
+      (instance as any).config.onTransaction(transactionEvent);
+
+      expect(firstOnTransaction).toHaveBeenCalledTimes(firstCallCountBeforeRerenderDispatch);
+      expect(secondOnTransaction).toHaveBeenLastCalledWith(transactionEvent);
+      expect(secondOnTransaction).toHaveBeenCalledTimes(secondCallCountBeforeManualDispatch + 1);
+    });
   });
 
   describe('onEditorDestroy', () => {
diff --git a/packages/react/src/SuperDocEditor.tsx b/packages/react/src/SuperDocEditor.tsx
index b215bdacc0..b022552456 100644
--- a/packages/react/src/SuperDocEditor.tsx
+++ b/packages/react/src/SuperDocEditor.tsx
@@ -17,6 +17,7 @@ import type {
   SuperDocReadyEvent,
   SuperDocEditorCreateEvent,
   SuperDocEditorUpdateEvent,
+  SuperDocTransactionEvent,
   SuperDocContentErrorEvent,
   SuperDocExceptionEvent,
 } from './types';
@@ -46,6 +47,7 @@ function SuperDocEditorInner(props: SuperDocEditorProps, ref: ForwardedRef<Super
     onEditorCreate,
     onEditorDestroy,
     onEditorUpdate,
+    onTransaction,
     onContentError,
     onException,
     // Key props that trigger rebuild when changed
@@ -85,6 +87,7 @@ function SuperDocEditorInner(props: SuperDocEditorProps, ref: ForwardedRef<Super
     onEditorCreate,
     onEditorDestroy,
     onEditorUpdate,
+    onTransaction,
     onContentError,
     onException,
   });
@@ -96,10 +99,11 @@ function SuperDocEditorInner(props: SuperDocEditorProps, ref: ForwardedRef<Super
       onEditorCreate,
       onEditorDestroy,
       onEditorUpdate,
+      onTransaction,
       onContentError,
       onException,
     };
-  }, [onReady, onEditorCreate, onEditorDestroy, onEditorUpdate, onContentError, onException]);
+  }, [onReady, onEditorCreate, onEditorDestroy, onEditorUpdate, onTransaction, onContentError, onException]);
 
   // Queue mode changes that happen during init
   const pendingModeRef = useRef<DocumentMode | null>(null);
@@ -192,6 +196,11 @@ function SuperDocEditorInner(props: SuperDocEditorProps, ref: ForwardedRef<Super
               callbacksRef.current.onEditorUpdate?.(event);
             }
           },
+          onTransaction: (event: SuperDocTransactionEvent) => {
+            if (!destroyed) {
+              callbacksRef.current.onTransaction?.(event);
+            }
+          },
           onContentError: (event: SuperDocContentErrorEvent) => {
             if (!destroyed) {
               callbacksRef.current.onContentError?.(event);
diff --git a/packages/react/src/index.ts b/packages/react/src/index.ts
index dafad66ad4..eba3573a70 100644
--- a/packages/react/src/index.ts
+++ b/packages/react/src/index.ts
@@ -24,6 +24,7 @@ export type {
   SuperDocReadyEvent,
   SuperDocEditorCreateEvent,
   SuperDocEditorUpdateEvent,
+  SuperDocTransactionEvent,
   SuperDocContentErrorEvent,
   SuperDocExceptionEvent,
 } from './types';
diff --git a/packages/react/src/types.ts b/packages/react/src/types.ts
index dfb96a27ce..709a83f6da 100644
--- a/packages/react/src/types.ts
+++ b/packages/react/src/types.ts
@@ -67,6 +67,24 @@ export interface SuperDocEditorUpdateEvent {
   sectionType?: string | null;
 }
 
+/** Event passed to onTransaction callback. Mirrors superdoc's EditorTransactionEvent. */
+export interface SuperDocTransactionEvent {
+  /** The primary editor associated with the transaction. For header/footer edits, this is the main body editor. */
+  editor: Editor;
+  /** The editor instance that emitted the transaction. For body edits, this matches `editor`. */
+  sourceEditor: Editor;
+  /** The ProseMirror transaction or transaction-like payload emitted by the source editor. */
+  transaction: any;
+  /** Time spent applying the transaction, in milliseconds. */
+  duration?: number;
+  /** The surface where the transaction originated. */
+  surface: EditorSurface;
+  /** Relationship ID for header/footer edits. */
+  headerId?: string | null;
+  /** Header/footer variant (`default`, `first`, `even`, `odd`) when available. */
+  sectionType?: string | null;
+}
+
 /** Event passed to onContentError callback */
 export interface SuperDocContentErrorEvent {
   error: Error;
@@ -107,6 +125,7 @@ type ExplicitCallbackProps =
   | 'onEditorCreate'
   | 'onEditorDestroy'
   | 'onEditorUpdate'
+  | 'onTransaction'
   | 'onContentError'
   | 'onException';
 
@@ -127,6 +146,9 @@ export interface CallbackProps {
   /** Callback when document content is updated */
   onEditorUpdate?: (event: SuperDocEditorUpdateEvent) => void;
 
+  /** Callback when a transaction is emitted */
+  onTransaction?: (event: SuperDocTransactionEvent) => void;
+
   /** Callback when there is a content parsing error */
   onContentError?: (event: SuperDocContentErrorEvent) => void;