When Google Analytics GA4 does not track form submissions as events, you lose important conversion data. By default, GA4 does not automatically track form submits since no standard event exists for this. Therefore, you need to set up a custom event. In this guide to tracking GA4 form submissions, we show the best method. We use Google Tag Manager for a reliable implementation.

Why Are GA4 Form Submissions Not Tracked?

GA4 only captures certain automatic events by default, such as page_view, scroll, and click. However, form_submit is not one of these enhanced measurement events. This means you must set up tracking manually via Google Tag Manager or gtag.js. The GTM method is more reliable since you can precisely configure the trigger for your form. Also check whether your form has a thank-you page with conversion tracking.

The Two Best Methods for Form Tracking

There are two proven approaches for form tracking in GA4. The first method uses the form submit trigger in GTM, which fires on every submission. However, this does not work reliably with all form plugins, especially AJAX forms. Therefore, we recommend the second method: tracking via the thank-you page. The GTM documentation on form triggers explains both options in detail.

Our Recommendation

Use Google Tag Manager and create a pageview trigger for your thank-you page. Then send a GA4 event named ‘generate_lead’ and mark it as a conversion. This gives you reliable data without double counting. Additionally, you can send event parameters like form_name or form_id to distinguish different forms. Test everything in GTM preview mode before publishing.

Conclusion

GA4 does not track forms automatically, but setup with GTM is quick and straightforward. The thank-you page method is the most reliable solution. Our Google Ads agency sets up your conversion tracking professionally. Also read why GA4 conversions may not be showing.