diff --git a/includes/core/um-actions-login.php b/includes/core/um-actions-login.php
index 20e85f50..dd1ea922 100644
--- a/includes/core/um-actions-login.php
+++ b/includes/core/um-actions-login.php
@@ -362,7 +362,26 @@ function um_add_submit_button_to_login( $args ) {
 	if ( ! isset( $primary_btn_word ) || $primary_btn_word == '' ){
 		$primary_btn_word = UM()->options()->get( 'login_primary_btn_word' );
 	}
-
+	/**
+	 * Filters the classes applied to the primary button on the login form.
+	 *
+	 * @hook um_login_form_primary_btn_classes
+	 * @since 2.10.5
+	 *
+	 * @param {array} $classes An array of CSS classes applied to the primary button.
+	 * @param {array} $args    An array of arguments or configurations used in the login form.
+	 *
+	 * @return {array} Button CSS classes.
+	 *
+	 * @example <caption>Extend the classes applied to the primary button on the login form.</caption>
+	 * function my_custom_classes( $classes, $args ) {
+	 *     // Add a new class to the button
+	 *     $classes[] = 'new-button-class';
+	 *
+	 *     return $classes;
+	 * }
+	 * add_filter( 'um_login_form_primary_btn_classes', 'my_custom_classes', 10, 2 );
+	 */
 	$primary_btn_classes = apply_filters( 'um_login_form_primary_btn_classes', array( 'um-button' ), $args );
 
 	/**
diff --git a/includes/core/um-actions-register.php b/includes/core/um-actions-register.php
index f9d44f0f..ca5e7540 100644
--- a/includes/core/um-actions-register.php
+++ b/includes/core/um-actions-register.php
@@ -597,6 +597,26 @@ function um_add_submit_button_to_register( $args ) {
 		$primary_btn_word = UM()->options()->get( 'register_primary_btn_word' );
 	}
 
+	/**
+	 * Filters the classes applied to the primary button on the registration form.
+	 *
+	 * @hook um_register_form_primary_btn_classes
+	 * @since 2.10.5
+	 *
+	 * @param {array} $classes An array of CSS classes applied to the primary button.
+	 * @param {array} $args    An array of arguments or configurations used in the registration form.
+	 *
+	 * @return {array} Button CSS classes.
+	 *
+	 * @example <caption>Extend the classes applied to the primary button on the registration form.</caption>
+	 * function my_custom_classes( $classes, $args ) {
+	 *     // Add a new class to the button
+	 *     $classes[] = 'new-button-class';
+	 *
+	 *     return $classes;
+	 * }
+	 * add_filter( 'um_register_form_primary_btn_classes', 'my_custom_classes', 10, 2 );
+	 */
 	$primary_btn_classes = apply_filters( 'um_register_form_primary_btn_classes', array( 'um-button' ), $args );
 
 	$secondary_btn_word = $args['secondary_btn_word'];
diff --git a/templates/password-reset.php b/templates/password-reset.php
index 51adbeee..0984a2f7 100644
--- a/templates/password-reset.php
+++ b/templates/password-reset.php
@@ -120,6 +120,26 @@ if ( ! defined( 'ABSPATH' ) ) {
 				 */
 				do_action( 'um_after_password_reset_fields', $args );
 
+				/**
+				 * Filters the classes applied to the primary button on the password reset form.
+				 *
+				 * @hook um_password_reset_form_primary_btn_classes
+				 * @since 2.10.5
+				 *
+				 * @param {array} $classes An array of CSS classes applied to the primary button.
+				 * @param {array} $args    An array of arguments or configurations used in the password reset form.
+				 *
+				 * @return {array} Button CSS classes.
+				 *
+				 * @example <caption>Extend the classes applied to the primary button on the password reset form.</caption>
+				 * function my_custom_classes( $classes, $args ) {
+				 *     // Add a new class to the button
+				 *     $classes[] = 'new-button-class';
+				 *
+				 *     return $classes;
+				 * }
+				 * add_filter( 'um_password_reset_form_primary_btn_classes', 'my_custom_classes', 10, 2 );
+				 */
 				$primary_btn_classes = apply_filters( 'um_password_reset_form_primary_btn_classes', array( 'um-button' ), $args );
 				?>
 				<div class="um-col-alt um-col-alt-b">