diff --git a/frontend/playwright/data/register/prepare-register-profile-email-already-exists.json b/frontend/playwright/data/register/prepare-register-profile-email-already-exists.json
new file mode 100644
index 0000000000..e1cecccbaf
--- /dev/null
+++ b/frontend/playwright/data/register/prepare-register-profile-email-already-exists.json
@@ -0,0 +1,5 @@
+{
+  "~:type": "~:validation",
+  "~:code": "~:email-already-exists",
+  "~:hint": "email already exists"
+}
diff --git a/frontend/playwright/ui/pages/RegisterPage.js b/frontend/playwright/ui/pages/RegisterPage.js
index ef43f56469..324a4fd1c2 100644
--- a/frontend/playwright/ui/pages/RegisterPage.js
+++ b/frontend/playwright/ui/pages/RegisterPage.js
@@ -21,6 +21,14 @@ export class RegisterPage extends BasePage {
     await this.registerButton.click();
   }
 
+  async setupEmailAlreadyExistsError() {
+    await this.mockRPC(
+      "prepare-register-profile",
+      "register/prepare-register-profile-email-already-exists.json",
+      { status: 400 },
+    );
+  }
+
   async setupMismatchedEmailError() {
     await this.mockRPC(
       "prepare-register-profile",
diff --git a/frontend/playwright/ui/specs/register.spec.js b/frontend/playwright/ui/specs/register.spec.js
index 24e835c829..aaaaf0f035 100644
--- a/frontend/playwright/ui/specs/register.spec.js
+++ b/frontend/playwright/ui/specs/register.spec.js
@@ -24,4 +24,23 @@ test.describe("Register form errors", () => {
       page.getByText("Email does not match the invitation."),
     ).toBeVisible();
   });
+
+  test("User gets the already used email error on the email input", async ({
+    page,
+  }) => {
+    const registerPage = new RegisterPage(page);
+    await registerPage.setupEmailAlreadyExistsError();
+
+    await registerPage.fillRegisterFormInputs(
+      "John Doe",
+      "john.doe@example.com",
+      "password123",
+    );
+    await registerPage.clickRegisterButton();
+
+    await expect(page.getByTestId("email-input-error")).toHaveText(
+      "Email already used",
+    );
+    await expect(page.getByRole("alert")).toHaveCount(0);
+  });
 });
diff --git a/frontend/src/app/main/ui/auth/register.cljs b/frontend/src/app/main/ui/auth/register.cljs
index e6cd8197f5..152201261b 100644
--- a/frontend/src/app/main/ui/auth/register.cljs
+++ b/frontend/src/app/main/ui/auth/register.cljs
@@ -79,6 +79,7 @@
 
         on-error
         (mf/use-fn
+         (mf/deps form)
          (fn [cause]
            (reset! submitted? false)
            (let [{:keys [type code] :as edata} (ex-data cause)]
@@ -98,8 +99,12 @@
                [:restriction :email-has-complaints]
                (st/emit! (ntf/error (tr "errors.email-has-permanent-bounces" (:email edata))))
 
+               ;; Reported on the email input itself, the way the recovery and
+               ;; password forms report server side errors, so the field that
+               ;; needs fixing is the one marked as invalid
                [:validation :email-already-exists]
-               (st/emit! (ntf/error (tr "errors.email-already-exists")))
+               (swap! form assoc-in [:extra-errors :email]
+                      {:message (tr "errors.email-already-exists")})
 
                [:validation :email-as-password]
                (st/emit! (ntf/error (tr "errors.email-as-password")))