If you are managing Google Ads for your SaaS or B2B business, mark your calendar for August 17, 2026. Google is rolling out a massive change to how its bidding algorithm handles campaigns that are “Limited by budget.”
If you don’t take action before this deadline, your most efficient campaigns could see a sudden drop in performance. Here is everything you need to know about the update, why it’s happening, and how to protect your ROAS.
The “Hidden Efficiency” Loophole is Closing
For years, savvy marketers have benefited from a quirk in the Google Ads algorithm. If you set a Target CPA of $50, but your daily budget was severely restricted, the algorithm knew it couldn’t bid on every auction. Instead, it was forced to “cherry-pick” only the absolute cheapest, highest-intent conversions to maximize your tiny budget.
The result? You might set a Target CPA of $50, but enjoy an actual CPA of $20. This hidden efficiency loophole is officially closing.
What Happens on August 17?
Google has announced that moving forward, the algorithm will optimize to hit your stated target—no matter what. If your Target CPA is set to $50, Google will actively try to spend up to $50 per acquisition, even if your campaign is limited by budget.
If your campaigns are currently overperforming their targets because of budget constraints, you will likely see your actual CPA rise to meet your target setting. This means fewer conversions for the same daily budget.
Your 3-Step Action Plan
Don’t wait until your performance drops to react. Take these three steps today:
- Identify Vulnerable Campaigns: Go into your Google Ads dashboard and filter for any campaigns using Target CPA or Target ROAS that are flagged as “Limited by budget.”
- Audit Your Actuals vs. Targets: Look at your actual CPA or ROAS over the last 30 days and compare it to the target you typed into the settings.
- Lower Your Targets: If your actual CPA is significantly lower than your target setting (e.g., Target is $50, Actual is $20), lower your target setting to match your actual performance. This tells the algorithm to maintain your current efficiency.
Need Help Navigating the Update?
At B Creative Studios, we help B2B and SaaS founders build data-backed growth funnels that survive algorithm updates. If you want an expert team to audit your ad accounts and ensure you aren’t bleeding budget, let’s talk strategy.