From 15 June 2026, Google is changing how data use is controlled between Google Analytics and Google Ads.

If your website uses Google Analytics, Google Ads or both platforms together, this change is not merely a technical detail for developers. It directly affects how tracking works, what data reaches Google Ads, what appears in your reports and what you need to check in your site's consent setup.

Most importantly, Google is trying to simplify an area that has caused widespread confusion. Until now, the use of some advertising data was affected both by settings in Google Analytics and by consent settings for ads. Going forward, Consent Mode—and particularly consent choices such as ad_storage—will be the primary control for matters involving Google Ads.

Put simply, a website owner who assumes they have restricted advertising use solely by disabling a setting in Google Analytics may find that this is no longer enough. The relevant question is now more precise: what consent did the user provide, and did the site communicate it correctly to Google?

A Quick Overview

Here is the short version of what is changing and what you need to do:

What Is Changing

  • Google Ads will rely more heavily on Consent Mode
  • Google signals will no longer be the primary control for ads data use
  • Correctly configuring ad_storage becomes more critical

What You Should Do

  • Check your cookie banner and Consent Mode
  • Make sure the correct defaults apply before consent
  • Check Google Ads, GA4 and Tag Assistant

If Google Analytics and Google Ads are linked, the important question is not only whether the site “tracks”, but whether it accurately tells Google what the user has accepted or rejected.

What Really Changes on 15 June 2026

The major change is that Google wants one clearer control over how data is used in Google Ads.

Until now, when a Google Analytics property was linked to Google Ads, a combination of settings could influence the use of advertising cookies and identifiers. This caused confusion because many people assumed Google signals restricted or permitted more than it actually did.

Going forward, Google is drawing a clearer distinction between the two environments. Google signals will continue to matter for data use within Google Analytics. For data used within Google Ads—including data sent there from Analytics—the primary control will be Google Ads Consent Mode.

This makes your site's consent setup even more important. It is not enough for settings to exist “somewhere”. They must be implemented correctly, updated correctly and synchronised accurately with the visitor's choice in the banner.

In Plain English: What This Means for a Website Owner

Google is essentially saying: for advertising-related data use, I will focus primarily on whether the user gave the relevant consent.

If a visitor accepts advertising cookies and your site sends the correct consent signal, Google Ads may use the relevant data for measurement, optimisation, audiences and campaign improvement.

Conversely, if the visitor does not give the relevant consent, Google Ads should not behave as though full advertising permission were available. What matters here is how you have implemented Consent Mode—not simply whether a particular toggle in Google Analytics is on or off.

The most practical conclusion is that “I have disabled Google signals, so I am covered” is no longer a safe assumption for Google Ads. A correct consent setup matters more.

The Point That Causes the Most Confusion

Many people will assume that this change concerns Google Analytics alone, when in practice it is mainly about how data reaches and is used in Google Ads.

This is the most critical part of the update. Google explains that if Google signals is currently disabled but users give consent for ad_storage, Google Ads may use advertising cookies and identifiers. This can affect audiences, bidding, optimisation and conversion measurement.

For many businesses, the immediate action is therefore not to change Google signals. It is to check whether the cookie banner, GTM or gtag setup, and consent defaults have been configured correctly.

In other words, disabling something in Analytics does not automatically stop Ads-side behaviour if the site continues to signal consent for advertising storage to Google.

What You Should Check First on Your Website

The first step is to confirm that Consent Mode works correctly in practice.

Start with the cookie banner. It needs to be clear, offer a meaningful choice and distinguish at least the main consent categories related to analytics and advertising. If the banner has been implemented carelessly, loads tags before valid consent or fails to communicate the consent state clearly to Google, the setup may be incorrect.

Next, check whether the site sends the correct consent defaults before the user interacts with it. Many errors occur at this stage. Some sites appear to have a banner, while their tag firing or consent states behave differently from what the site owner assumes.

Then confirm that the Google Ads account, conversion actions and Google tag or GTM container work correctly with Consent Mode. If the Ads account expects signals that do not arrive correctly, reporting and optimisation may be affected.

Where to Check These Settings in Google Analytics and Google Ads

Google now provides more specific places to review these settings inside its tools.

In Google Analytics 4, you can review consent-related settings from the consent settings area under Admin. Google also indicates what percentage of traffic or conversions may be affected by consent choices, particularly for traffic from regions such as the EEA.

Google signals remains available in the Data Collection area. Going forward, however, it should be viewed primarily as a setting related to reporting and behavioural data use within Analytics, rather than as the main restriction for Google Ads.

In Google Ads, practical checks include Consent Mode status, conversion diagnostics and tag verification. Google also recommends using Tag Assistant to confirm that consent signals are arriving as expected.

What May Change in Reports and Conversions

The most significant practical effect is a possible change in how conversions, attribution and advertising signals appear across Google's tools.

When Consent Mode is implemented correctly, Google Ads can use modelling to account for part of the gap created when full consent is unavailable. This does not mean that it “sees everything”; it means that it attempts to reconstruct part of the missing picture through modelled conversions.

If the setup is wrong, however, the results may be misleading. You may see fewer measured conversions, discrepancies between Google Ads and GA4 or weak signals—not because the marketing is failing, but because consent has been implemented incorrectly.

In some cases, Google reports that correctly enabling Consent Mode may even produce an uplift in conversions reported by Ads, precisely because modelling begins to work more effectively.

If your reports change after consent fixes, that does not always mean campaign performance changed. The quality of the measurement may have changed instead.

What Google Signals Will Continue to Affect

Google signals is not disappearing. It simply stops being the main control for Ads-side data use.

Google signals remains connected with capabilities that use signed-in Google user information and behavioural reporting within Analytics. It also affects functionality based on advertising features, including certain demographic or interest data and some remarketing or downstream uses associated with Google Analytics advertising features.

It is therefore not “useless”. It simply should not be used as the primary mental shortcut for deciding what is or is not permitted in Google Ads after the June 2026 change.

The Most Common Mistakes Websites Are Likely to Make

This change will create fresh confusion for sites that already have an incomplete or poorly implemented consent setup.

A common mistake is to display a cookie banner without sending the correct default consent states before the user interacts. Another is to block the wrong tags, preventing both measurement and modelling from working correctly.

Some people will also check a single GA4 setting and assume that the work is complete. In practice, the review needs to cover the banner, GTM or gtag, Google Ads diagnostics, GA4 consent settings and real verification through debugging tools.

A quick practical review can start with the following questions:

  • Are the correct consent defaults set before acceptance?
  • Does the site distinguish analytics consent from advertising consent correctly?
  • Does the Google tag or GTM read and send consent updates correctly?
  • Does Google Ads show the correct Consent Mode status?
  • Does Tag Assistant confirm that the signals are arriving correctly?
  • Does the privacy policy clearly explain advertising cookies and Google services?

Confused about Consent Mode, GA4 and Ads?

If you are unsure whether your site's tracking setup is correct, a focused review is worthwhile before misleading reports lead to the wrong conclusions.

Request a tracking and consent setup review

What This Means for Businesses That Run Ads

For organisations investing in Google Ads, this change is operational rather than theoretical.

When consent is configured correctly, there is greater clarity over which setting controls which behaviour. This should help reduce longstanding inconsistencies between Analytics and Ads.

If the setup is wrong or incomplete, however, conversion tracking may lose accuracy, audiences may become less effective, bidding may be affected and sound budget and optimisation decisions may become harder.

This change therefore matters to agencies, freelancers, online stores, lead-generation sites and anyone whose growth depends partly on paid traffic.

What the Right Next Step Looks Like

The right next step is neither panic nor a hurried settings change. It is a focused review.

First, establish how Consent Mode is currently implemented. Then confirm that Google Ads receives the correct consent signals. Finally, check that the site loads tags and cookies consistently with the choices made by the user.

If all of this is correct, Google's change may require little practical intervention. If it is not, this is a useful opportunity to fix an area that affects tracking accuracy, compliance and the quality of marketing decisions.

Conclusion

Google's change in June 2026 does not remove consent. It makes correct implementation even more important.

The central message is simple: for data use in Google Ads, Consent Mode and the related consent signals become the main control. Google signals remains useful, but it is no longer the first place to look when assessing whether the Ads-side setup is correct.

For any website using Google Analytics, Google Ads and a cookie banner, this is a good time for an audit—not merely to ensure that settings are ticked correctly, but to avoid basing strategic decisions on incomplete, inconsistent or misleading data.

Frequently Asked Questions

When does this change take effect?

Google gives 15 June 2026 as the effective date.

If Google signals is disabled, does that mean Google Ads cannot use advertising cookies?

Not necessarily. If the user gives the relevant consent and Consent Mode has been configured correctly, Google Ads may use advertising cookies and identifiers for advertising-related use cases.

Do I need to change something in Google Analytics immediately?

Not necessarily in Google Analytics itself as the first step. The priority is to review Consent Mode, the cookie banner and the overall implementation of consent signals.

Could the conversions I see in Google Ads change?

Yes. If the Consent Mode setup changes or is corrected, the conversion picture may also change because measurement improves or modelling begins to work properly.

No. The banner needs to connect correctly with the Google tag or GTM so that the user's consent choices are communicated accurately to Google.

How can I check this in practice?

The most useful combination is a review of GA4 consent settings, Google Ads diagnostics and a Tag Assistant test to confirm which signals the site actually sends.