What the August 2026 Google Ads Bidding Update Actually Means for Your Budget
Quick Answer: Starting August 17, 2026, Google Ads campaigns using target-based bid strategies (like Target CPA and Target ROAS) that are “limited by budget” will align their performance much more closely with your actual set bid targets. Currently, these campaigns often perform significantly below the target cost because the system only enters the cheapest auctions. The update fixes this so advertisers can confidently increase daily budgets to scale volume without seeing sudden, unpredictable spikes in CPA.
Have you ever looked at your Google Ads account and noticed your campaign is getting a $5 Cost Per Action (CPA), even though you set your target at $10? While getting cheaper leads sounds great, it can make scaling your budget incredibly unpredictable.
Google is rolling out a major update to its bidding systems on August 17, 2026, to fix this exact issue. Here is exactly how this works, step-by-step. No secrets.
Table of Contents
- 1. What is Actually Happening Here?
- 2. This Not That: How to Handle the Update
- 3. Next Steps for Your Business
- Glossary of Terms
- Frequently Asked Questions
1. What is Actually Happening Here?
Currently, campaigns using target-based bid strategies that are “limited by budget” often perform significantly better than their set targets. Because the budget runs out early in the day, the system only enters the absolute cheapest auctions.
While this looks good on paper, it creates a problem: if you decide to increase your daily budget to get more of those $5 leads, the system suddenly enters more expensive auctions, and your actual CPA spikes toward your original $10 target. This unpredictability makes it hard to scale confidently.
This update applies to Search, Shopping, Performance Max, and Demand Gen campaigns.
2. This Not That: How to Handle the Update
If you have budget-limited campaigns using Target CPA or Target ROAS, you need to review your settings today. Look at your actual performance average over the last 28 days and compare it to your set target.
| This (What to Do) | Not That (What to Avoid) |
|---|---|
| Maintain Original Target: Make no changes. Your actual CPA will slowly trend up toward your set target as the system optimizes for more volume at that price point. | Don’t lower your target just because your recent CPA was lower. |
| Maintain Current Performance: Lower your bid target in the Google Ads interface to match your actual average from the last 28 days (e.g., lower from $10 to $5). | Don’t leave the target at $10 and expect the $5 CPA to continue after August 17. |
| Custom Adjustment: Input a custom amount that sits between your recent average and your original target (e.g., $7). | Don’t set a target that is completely unrealistic based on your historical data. |
| Change Strategy: Switch to a “Maximize Conversions” strategy if you care more about volume than a specific cost. | Don’t stick with Target CPA if your primary goal is just getting as many leads as possible within budget. |
3. Next Steps for Your Business
We don’t guess. We partner with you, use the newest technologies, and focus on the data to make better decisions.
If you are managing your own Google Ads, log in today, filter for campaigns that are “limited by budget,” and review your Target CPA or Target ROAS settings against your last 28 days of data. Decide which of the four options above aligns best with your business goals before the August 17 deadline.
Want to learn exactly how to set up your Google Ads tracking and measurement properly? Check out our Complete Measure Setup Guide to stop guessing with your analytics.
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Glossary of Terms
- Target CPA (Cost Per Action): A smart bidding strategy that sets bids to help get as many conversions as possible at or below the target cost per action you set.
- Target ROAS (Return on Ad Spend): A smart bidding strategy that sets bids to help get as much conversion value as possible at the target return on ad spend you set.
- Limited by Budget: A campaign status indicating that your daily budget is lower than the recommended amount, causing your ads to stop showing early in the day.
- Smart Bidding: A subset of automated bid strategies that use machine learning to optimize for conversions or conversion value in each and every auction.
- Maximize Conversions: A bidding strategy that automatically sets bids to help get the most conversions for your campaign while spending your budget.
Frequently Asked Questions
When does the Google Ads bidding update take effect?
The update takes effect on August 17, 2026. After this date, actual campaign performance will begin trending much closer to your set bid targets.
Which campaign types are affected by this update?
This update applies to Search, Shopping, Performance Max, and Demand Gen campaigns that use target-based bid strategies like Target CPA and Target ROAS.
What does “limited by budget” mean in Google Ads?
“Limited by budget” means your campaign’s daily budget is lower than the recommended amount, causing your ads to stop showing early in the day because the funds have been exhausted.
Should I change my bid strategy to Maximize Conversions?
You should consider switching to Maximize Conversions if your primary goal is to get the highest volume of conversions possible within your daily budget, rather than hitting a specific cost per action (CPA).
Where can I find my actual CPA for the last 28 days?
You can find this data in your Google Ads account by setting your date range to the “Last 28 days” and looking at the “Cost / conv.” column for your specific campaigns.