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How can I create a custom post type with its own taxonomy in WordPress?

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How can I create a custom post type with its own taxonomy in WordPress?

Asked on Apr 09, 2026

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Creating a custom post type with its own taxonomy in WordPress involves registering both the post type and the taxonomy using WordPress functions. This is typically done in your theme's `functions.php` file or a custom plugin.

<!-- BEGIN COPY / PASTE -->
    function my_custom_post_type() {
        // Register Custom Post Type
        register_post_type('book', array(
            'labels' => array(
                'name' => __('Books'),
                'singular_name' => __('Book')
            ),
            'public' => true,
            'has_archive' => true,
            'rewrite' => array('slug' => 'books'),
            'supports' => array('title', 'editor', 'thumbnail'),
        ));

        // Register Custom Taxonomy
        register_taxonomy('genre', 'book', array(
            'labels' => array(
                'name' => __('Genres'),
                'singular_name' => __('Genre')
            ),
            'hierarchical' => true,
            'rewrite' => array('slug' => 'genres'),
        ));
    }
    add_action('init', 'my_custom_post_type');
    <!-- END COPY / PASTE -->

Additional Comment:

Ensure you use unique slugs for your post type and taxonomy to avoid conflicts with existing content.
After adding the code, visit "Settings → Permalinks" in your WordPress dashboard and click "Save Changes" to flush rewrite rules.
Consider using a child theme or a custom plugin to keep your changes separate from the main theme files.

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How can I create a custom post type with its own taxonomy in WordPress?

Asked on Apr 09, 2026

Answer

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