Google Ads Bidding Update 2026: Critical Changes Before August 17

The key change is that Google Ads will enforce target-based bidding strategies more consistently for campaigns limited by budget starting August 17, 2026. This update affects Search, Shopping, Performance Max, and Demand Gen campaigns that use Target CPA or Target ROAS and are constrained by budget. Advertisers must use the new Bid Target Adjustment Tool to review and adjust their targets; otherwise, Google will not automatically apply changes, potentially causing performance shifts.

What Is Changing in Google Ads Bidding?

Google Ads announced a significant update to how target-based bidding strategies operate for campaigns that are limited by budget. According to Search Engine Roundtable, starting August 17, 2026, campaigns using Target CPA or Target ROAS will more rigidly adhere to their set targets when budget constraints prevent full spend. Previously, such campaigns could exceed targets (e.g., delivering a lower CPA than the target) if budget limited delivery. The new behavior means Google will prioritize hitting the target even if that reduces conversion volume.

The rationale is to provide more predictable performance. However, advertisers whose campaigns were over-performing (delivering below target CPA) may see their actual CPA rise to match the target, which could increase cost per conversion. Google has provided an official example: if a campaign with a $50 Target CPA was previously achieving a $40 CPA due to budget limits, after the update it will aim for exactly $50, potentially reducing the number of conversions while increasing the CPA.

Which Campaign Types Are Affected?

The update applies to several campaign types. As detailed on UAMaster, the affected campaign types are:

• Search campaigns
• Shopping campaigns
• Performance Max campaigns
• Demand Gen campaigns

Campaigns that are not limited by budget—those that can spend their entire budget—are not impacted. Also, campaigns using other bid strategies like Maximize Clicks or Maximize Conversions (without a target) remain unchanged. The following table summarizes the scope:

Campaign Type	Affected by Update?	Bid Strategies Impacted
Search	Yes	Target CPA, Target ROAS
Shopping	Yes	Target CPA, Target ROAS
Performance Max	Yes	Target CPA, Target ROAS
Demand Gen	Yes	Target CPA, Target ROAS
Display	No	—
Video	No (unless Demand Gen)	—
App	No	—

Advertisers running video campaigns via Demand Gen should note that those fall under the update. Standalone Video campaigns are not directly affected unless they use a target-based strategy with budget limitations.

The New Bid Target Adjustment Tool

To help advertisers prepare, Google released the Bid Target Adjustment Tool on July 6, 2026. This tool, accessible within the Google Ads interface, allows advertisers to see which campaigns are budget-limited and how their current performance compares to targets. The tool also provides recommendations for adjusting targets to maintain current performance levels.

According to UAMaster, the tool will not make automatic changes. Advertisers must proactively use it to review and adjust targets before August 17. After the deadline, campaigns that have not been adjusted will start operating under the new stricter enforcement. Google has published a help article and a YouTube video explaining the process.

Implications for Video Advertisers

While the update primarily targets budget-limited campaigns, video advertisers using Demand Gen should pay close attention. Demand Gen campaigns, which serve ads across YouTube, Discover, and Gmail, rely heavily on Target CPA or Target ROAS. If a Demand Gen campaign is budget-limited, its bidding behavior will change.

For example, a video ad campaign promoting a new product with a Target ROAS of 3x might have been over-performing at 4x ROAS due to budget constraints. Post-update, Google will aim to spend at the target ROAS, which could reduce the number of conversions or impressions. Advertisers may need to lower their ROAS target to maintain volume, or increase their budget to remove the budget-limiting flag.

Other Recent Google Ads Updates

The bidding change is not the only update rolling out. Google Ads has been actively refining its platform. Notable recent changes include:

• Separation of Target CPA and Target ROAS as explicit bidding strategy options: Google Ads now lists these as separate strategies rather than sub-options under 'Target CPA/Roads mixed'. This change, reported by Search Engine Land and Search Engine Roundtable, simplifies selection but may confuse some advertisers.

• Lead Journey Mapping: A new feature that uses Google AI to show how ad interactions lead to conversions across touchpoints. According to Search Engine Roundtable, this helps advertisers understand the real value of video views and clicks.

• Budget Panel Overhaul: Google Ads rolled out a redesigned budget panel for easier management, as covered by Search Engine Roundtable. The new panel shows budget pacing and recommendations.

• New Status Label: "Has Improvements": Campaigns that can benefit from automated recommendations get a new status indicator. Search Engine Roundtable explains this helps advertisers identify optimization opportunities.

• Product Clicks & Non-Product Clicks Metrics: For Shopping campaigns, Google Ads now separates product clicks from non-product clicks (e.g., brand clicks). See Search Engine Roundtable for details.

• AI-Generated Images with Upload Image Feature: Advertisers can now upload an image and have Google AI generate variations. Search Engine Roundtable reports this feature is live.

How to Prepare for the August 17 Deadline

Advertisers should take the following steps before August 17, 2026:

1. Identify budget-limited campaigns: Use the Bid Target Adjustment Tool or check the Budget column in campaigns. Any campaign with an overspend or limited budget label is affected.

2. Review current performance: Compare actual CPA/ROAS against targets. If a campaign is over-performing, decide whether to adjust the target (lower CPA or higher ROAS) or increase the budget to remove the budget limitation.

3. Use the Bid Target Adjustment Tool: As highlighted by Practical Ecommerce, the tool provides a straightforward way to preview changes. 'Adjust now' or 'skip' options are available.

4. Consider budget increases: If maintaining current performance is critical, raising the daily budget may remove the 'budget limited' status and prevent the bidding change from kicking in.

5. Monitor after the rollout: After August 17, check performance daily for the first week. Look for changes in CPA, ROAS, conversion volume, and impression share.

Expert Analysis: What This Means for Advertisers

Industry analysts have mixed views. Some see the update as a positive step toward transparency—advertisers know exactly what they are getting. Others warn that it could penalize campaigns that were efficiently delivering below target. A Search Engine Journal article by Lisa Raehsler advises focusing on bid strategy fundamentals: know your true target, use conversion tracking, and regularly review budgets.

The update also signals Google's increasing reliance on automated bidding. With AI managing more decisions, advertisers must ensure their goals align with the algorithm's constraints.

Conclusion

The Google Ads bidding update 2026 is a significant shift for budget-limited campaigns. By understanding which campaigns are affected, using the Bid Target Adjustment Tool, and adjusting targets proactively, advertisers can avoid disruptions. The changes take effect on August 17, 2026, so time is of the essence. For video advertisers running Demand Gen campaigns, the same rules apply—review your targets now.

Google continues to evolve its platform with other updates like lead journey mapping, budget panel redesign, and AI image generation. Staying informed about these changes will help advertisers maintain a competitive edge in the increasingly automated advertising landscape.