The irony
Google makes Google Forms. Google makes Google Ads. Google makes Google Tag Manager. You'd think tracking a Google Forms submission as a Google Ads conversion would be straightforward. It isn't.
Google Forms embeds in an iframe from docs.google.com. GTM cannot see inside it. When someone submits your Google Form, GTM doesn't fire. Google Ads doesn't know it happened. Three Google products, zero integration.
The workaround stack
The common approach involves Google Apps Script to capture submissions, a webhook or Zapier integration to push data somewhere useful, manual GCLID capture via hidden fields or URL parameters, and a separate process to format and upload offline conversions to Google Ads.
This is a multi-hour setup that requires scripting knowledge. For a small business just trying to track which ads generate form enquiries, it's absurd.
The one-script fix
Tagless tracks the interaction on your page — not inside the Google Forms iframe. When a visitor submits your embedded Google Form, Tagless has already captured the GCLID from the ad click. The submission is logged. You qualify the lead. It syncs to Google Ads.
No Apps Script. No Zapier chain. No hidden fields. One script that works regardless of which form builder you use.
How it works with Google Forms
The Tagless script on your page auto-injects a hidden reference field into your form. When someone submits, that reference travels with the form data. Tagless matches it to the GCLID captured when the visitor arrived from Google Ads.
The only setup step: connect via a webhook.
Google Forms doesn't support webhooks natively. Create a one-step Make.com scenario: trigger on Google Forms submission, add an HTTP module that calls your Tagless webhook URL. Two minutes.
When the submission fires, Tagless receives the data, matches the reference to the GCLID, and the lead appears in your dashboard with full attribution — campaign, ad group, keyword.
For a full explanation of the tracking mechanism, see How Tagless Works.
Should you switch form builders?
If you're using Google Forms because it's free and simple, keep using it. The form builder doesn't matter for tracking. Tagless works with Google Forms, Typeform, JotForm, Fillout, Tally, HubSpot Forms, WordPress forms — anything. The tracking is on your page, not in the form.