Google Ads Bidding Change: What to Do Before August 17, 2026

What Home Service Businesses Should Know

Google is introducing a Smart Bidding update that could affect how some advertisers manage their campaigns. Beginning August 17, budget-limited campaigns using Target CPA and Target ROAS will optimize differently, making it an important time for home service businesses to review their bidding settings.

While the update happens behind the scenes, its impact could be noticeable if your campaigns consistently outperform their bidding targets. Understanding what's changing now can help you protect your cost per lead and avoid unnecessary increases once the update takes effect.

What Are Target CPA and Target ROAS Bidding?

Target Cost Per Acquisition (Target CPA) and Target Return on Ad Spend (Target ROAS) are Google Ads Smart Bidding strategies that automatically adjust bids based on your campaign goals. Instead of manually changing bids for every auction, Google uses machine learning to optimize bids in real time.

Here's how each strategy works:

• Target Cost Per Acquisition (Target CPA): You set the average amount you're willing to pay for a conversion, such as a phone call or form submission.
• Target Return on Ad Spend (Target ROAS): You set the return you want from your advertising spend, and Google optimizes bids based on conversion value to help achieve that goal.

These automated bidding strategies help improve campaign efficiency while reducing manual bid management. Understanding how they work makes it easier to evaluate the upcoming changes.

What Is the Google Ads Bidding Change on August 17?

Beginning August 17, 2026, Google will update how budget-limited campaigns using Target Cost Per Acquisition (Target CPA) and Target Return on Ad Spend (Target ROAS) optimize toward their bidding targets.

According to Google's official announcement, advertisers can expect the following changes:

• Budget-limited campaigns will optimize more consistently toward their Target CPA or Target ROAS.
• Campaigns that have historically outperformed their Target CPA or Target ROAS may begin delivering performance closer to the targets you've set if no adjustments are made before August 17.
• This could result in a higher cost per acquisition (CPA), lower return on ad spend (ROAS), or changes in conversion volume and advertising spend.
• Google will not automatically change your budgets or bidding targets.
• Reviewing your bidding targets before August 17 can help reduce the risk of unexpected increases in cost per lead.

Understanding how this update could affect your PPC campaigns can help you make informed bidding decisions before the rollout.

How the Change Affects Home Service Campaigns

For home service businesses, maintaining a predictable cost per lead is critical. Whether you're advertising plumbing, heating, ventilation, and air conditioning (HVAC), roofing, electrical, restoration, or garage door services, even a modest increase in lead costs can affect your marketing budget and profitability.

For example, imagine a plumbing campaign consistently generating leads for $40 while using a Target CPA of $70. Under the updated bidding behavior, Google may begin optimizing the campaign closer to the Target CPA you've set, potentially increasing your cost per lead.

Budget-limited campaigns that consistently outperform their Target CPA or Target ROAS goals are most likely to be affected. Before the rollout, advertisers should:

• Review recent cost per lead and return on ad spend.
• Compare actual campaign performance with current bidding targets.
• Ensure phone calls and form submissions are accurately tracked before making bidding adjustments.

Action Items to Take Before the Deadline

Google will not automatically change your budgets or bidding targets, but the updated bidding behavior will still take effect on August 17.

Before the deadline, you should:

• Review every campaign marked “Limited by budget” that uses Target CPA or Target ROAS.
• Compare your current cost per lead with your Target CPA, or your actual return on ad spend with your Target ROAS.
• Use Google's Bid Target Adjustment Tool to review recommendations.
• Update bidding targets if they no longer reflect recent campaign performance.
• Monitor campaign results after the August 17 rollout.

Businesses without the resources to review every campaign internally may benefit from professional Google Ads campaign management. Taking these steps now can help reduce the risk of unexpected increases in advertising costs.

How Activate Digital Media Helps Protect Your Cost Per Lead

At Activate Digital Media, we're reviewing every home service client's bidding targets before the August 17 update. Our team identifies campaigns that may be most affected, recommends strategic target adjustments, and monitors performance as Google's changes roll out.

Rather than reacting after costs increase, we help clients prepare in advance through bidding strategy reviews, proactive target adjustments, and ongoing performance monitoring. We also use detailed marketing reporting and analytics to identify changes in cost per lead and overall campaign performance.

Act Before the August 17 Google Ads Bidding Change

The Google Ads bidding change on August 17 may seem like a small platform update, but it could significantly affect budget-limited campaigns using Target CPA or Target ROAS, particularly those currently performing better than their stated targets. Reviewing your bidding targets before the deadline can help protect your cost per lead and keep your campaigns performing efficiently.

Not sure whether your campaigns could be affected? Request a free Google Ads audit before August 17 to identify opportunities and help protect your cost per lead.

---