diff --git a/core/src/components/accordion/accordion.tsx b/core/src/components/accordion/accordion.tsx
index 8da0a312ff..41d1449400 100644
--- a/core/src/components/accordion/accordion.tsx
+++ b/core/src/components/accordion/accordion.tsx
@@ -417,7 +417,7 @@ export class Accordion implements ComponentInterface {
           'accordion-disabled': disabled,
           'accordion-readonly': readonly,
 
-          'accordion-animated': config.getBoolean('animated', true),
+          'accordion-animated': this.shouldAnimate(),
         }}
       >
         <div
diff --git a/core/src/components/accordion/test/accordion.spec.ts b/core/src/components/accordion/test/accordion.spec.ts
index 4eefb14423..56c5162d93 100644
--- a/core/src/components/accordion/test/accordion.spec.ts
+++ b/core/src/components/accordion/test/accordion.spec.ts
@@ -163,3 +163,24 @@ it('should set default values if not provided', async () => {
 
   expect(accordion.classList.contains('accordion-collapsed')).toEqual(false);
 });
+
+// Verifies fix for https://github.com/ionic-team/ionic-framework/issues/27047
+it('should not have animated class when animated="false"', async () => {
+  const page = await newSpecPage({
+    components: [Item, Accordion, AccordionGroup],
+    html: `
+      <ion-accordion-group animated="false">
+        <ion-accordion>
+          <ion-item slot="header">Label</ion-item>
+          <div slot="content">Content</div>
+        </ion-accordion>
+      </ion-accordion-group>
+    `,
+  });
+
+  const accordionGroup = page.body.querySelector('ion-accordion-group')!;
+  const accordion = accordionGroup.querySelector('ion-accordion')!;
+
+  expect(accordionGroup.animated).toEqual(false);
+  expect(accordion.classList.contains('accordion-animated')).toEqual(false);
+});