diff --git a/.changeset/rude-panthers-cough.md b/.changeset/rude-panthers-cough.md
new file mode 100644
index 000000000..2881dc920
--- /dev/null
+++ b/.changeset/rude-panthers-cough.md
@@ -0,0 +1,5 @@
+---
+"bits-ui": patch
+---
+
+fix: bug where menu `onChange` functions were being called before change  
diff --git a/src/lib/bits/context-menu/components/ContextMenuCheckboxItem.svelte b/src/lib/bits/context-menu/components/ContextMenuCheckboxItem.svelte
index 2d6c1359a..3cbea2b9e 100644
--- a/src/lib/bits/context-menu/components/ContextMenuCheckboxItem.svelte
+++ b/src/lib/bits/context-menu/components/ContextMenuCheckboxItem.svelte
@@ -18,8 +18,10 @@
 		disabled,
 		defaultChecked: checked,
 		onCheckedChange: ({ next }) => {
-			checked = next;
-			onCheckedChange?.(next);
+			if (checked !== next) {
+				onCheckedChange?.(next);
+				checked = next;
+			}
 			return next;
 		}
 	});
diff --git a/src/lib/bits/context-menu/components/ContextMenuRadioGroup.svelte b/src/lib/bits/context-menu/components/ContextMenuRadioGroup.svelte
index ff5dbc3cc..15accf94b 100644
--- a/src/lib/bits/context-menu/components/ContextMenuRadioGroup.svelte
+++ b/src/lib/bits/context-menu/components/ContextMenuRadioGroup.svelte
@@ -14,7 +14,7 @@
 	} = setRadioGroupCtx({
 		defaultValue: value,
 		onValueChange: ({ next }) => {
-			if (next) {
+			if (next && value !== next) {
 				onValueChange?.(next);
 				value = next;
 			}
diff --git a/src/lib/bits/dropdown-menu/components/DropdownMenuCheckboxItem.svelte b/src/lib/bits/dropdown-menu/components/DropdownMenuCheckboxItem.svelte
index 2f6d89bc4..054536d19 100644
--- a/src/lib/bits/dropdown-menu/components/DropdownMenuCheckboxItem.svelte
+++ b/src/lib/bits/dropdown-menu/components/DropdownMenuCheckboxItem.svelte
@@ -19,8 +19,10 @@
 		disabled,
 		defaultChecked: checked,
 		onCheckedChange: ({ next }) => {
-			onCheckedChange?.(next);
-			checked = next;
+			if (checked !== next) {
+				onCheckedChange?.(next);
+				checked = next;
+			}
 			return next;
 		}
 	});
diff --git a/src/lib/bits/dropdown-menu/components/DropdownMenuRadioGroup.svelte b/src/lib/bits/dropdown-menu/components/DropdownMenuRadioGroup.svelte
index ff5dbc3cc..15accf94b 100644
--- a/src/lib/bits/dropdown-menu/components/DropdownMenuRadioGroup.svelte
+++ b/src/lib/bits/dropdown-menu/components/DropdownMenuRadioGroup.svelte
@@ -14,7 +14,7 @@
 	} = setRadioGroupCtx({
 		defaultValue: value,
 		onValueChange: ({ next }) => {
-			if (next) {
+			if (next && value !== next) {
 				onValueChange?.(next);
 				value = next;
 			}
diff --git a/src/lib/bits/menubar/components/MenubarCheckboxItem.svelte b/src/lib/bits/menubar/components/MenubarCheckboxItem.svelte
index 8f11b69d3..1fb390c09 100644
--- a/src/lib/bits/menubar/components/MenubarCheckboxItem.svelte
+++ b/src/lib/bits/menubar/components/MenubarCheckboxItem.svelte
@@ -19,8 +19,10 @@
 		disabled,
 		defaultChecked: checked,
 		onCheckedChange: ({ next }) => {
-			onCheckedChange?.(next);
-			checked = next;
+			if (checked !== next) {
+				onCheckedChange?.(next);
+				checked = next;
+			}
 			return next;
 		}
 	});
diff --git a/src/lib/bits/menubar/components/MenubarRadioGroup.svelte b/src/lib/bits/menubar/components/MenubarRadioGroup.svelte
index 9787b406b..493883fc6 100644
--- a/src/lib/bits/menubar/components/MenubarRadioGroup.svelte
+++ b/src/lib/bits/menubar/components/MenubarRadioGroup.svelte
@@ -14,9 +14,9 @@
 	} = setRadioGroupCtx({
 		defaultValue: value,
 		onValueChange: ({ next }) => {
-			if (next) {
-				value = next;
+			if (next && next !== value) {
 				onValueChange?.(next);
+				value = next;
 			}
 			return next;
 		}