How Do You Track Conversions on Google Ads?

You track conversions on Google Ads in three core steps: define a conversion action in your account (a purchase, sign-up, lead form, or call), install the Google Tag on your site through Google Tag Manager or directly in your code, and verify it fires correctly with Google Tag Assistant — then layer on Enhanced Conversions, which Google reports improves reported conversion volume by an average of 5%.

The Three-Step Base Setup

• Define the conversion action: in Google Ads, go to Goals, then Conversions, and specify exactly what counts — a completed purchase, a form submission, a phone call, or an app install
• Install the Google Tag: either through Google Tag Manager or by adding the tag directly to your site's code, so Google Ads can detect when the defined action happens
• Test with Google Tag Assistant: confirm the tag fires correctly before relying on the data for optimization or reporting

Conversion tracking itself is a free tool included in every Google Ads account — there's no separate cost to turn it on, only the engineering time to implement the tag correctly.

What Enhanced Conversions Adds

Enhanced Conversions supplements your existing conversion tags with hashed first-party customer data — email, phone number, or name that a user provides on your site — matched against signed-in Google accounts to recover conversions that cookie restrictions, ad blockers, or cross-device behavior would otherwise cause you to miss. Google reports an average 5% improvement in reported conversions for advertisers who turn it on, which reflects conversions that were genuinely happening but going unmeasured, not new conversions created by the tracking method.

How to Turn On Enhanced Conversions

In your Google Ads account, navigate to Goals, then Conversions, then Settings, and find the Enhanced Conversions section to turn it on. Google offers three implementation paths: manual code modification, Google Tag Manager, or automatic detection — though Google Tag Manager guidance specifically recommends manual configuration of the user-provided data variables over automatic detection, since automatic detection carries higher GDPR compliance risk by potentially capturing more personal data than intended.

A 2026 Change Worth Knowing About

Starting in June 2026, Google combined Enhanced Conversions for web and for leads into a single feature controlled by one on/off switch, replacing the separate method selections advertisers previously had to configure individually. Anyone who set up Enhanced Conversions before that change should confirm their account reflects the simplified single-toggle setup rather than an outdated configuration from the old two-method system.

Common Setup Mistakes Worth Checking For

The most common failure point isn't the conversion action definition — it's the tag never firing correctly in the first place, often because it was installed on the wrong page (a thank-you page that isn't actually reached on every completed purchase) or because a site redesign silently broke the trigger. Running Tag Assistant periodically, not just once at initial setup, catches these breaks before they distort weeks of reporting and bidding decisions.

Bottom Line

Get the free, three-step base conversion tracking working first — conversion action, Google Tag, Tag Assistant verification — then add Enhanced Conversions using manual (not automatic) data configuration to recover the roughly 5% of conversions that basic tracking alone typically misses.

Sources: Google Ads Help, "Updates to your enhanced conversions settings" (support.google.com); Factors.ai, "Google Ads Conversion Tracking: Setup Guide (2026)."