The short answer up front. On August 17, 2026, Google changed how target CPA and target ROAS behave for campaigns with the "Limited by budget" status. Before, such a campaign could consistently overshoot its target: you set a target ROAS of 300% and got an actual 400–500%, and the difference stayed with you. Now the system pulls your actual results toward the number you specified. Set 300% — you will get roughly 300%. Overshooting is no longer a bonus; it is a deviation that Google levels out.
Google announced this change on June 15, 2026 and updated the Google Ads Help documentation. Below I break down the mechanics, exactly who this affects, and three working courses of action — from my own practice: hundreds of tests and campaigns across different niches.
What exactly changed
The logic of target-based strategies before August 17 worked like this. A campaign gathers 30–50 conversions, the advertiser moves it from maximize conversions to target CPA, or from maximize conversion value to target ROAS, and sets a target. If the campaign was limited by budget, the system often found conversions cheaper than the target. Target CPA £50, actual — £25 per conversion. Target ROAS 300%, actual — 400–500%. The advertiser got a result better than ordered, for the same money.
After August 17, this behavior was reversed. Google officially phrases it this way: budget-limited campaigns now "more consistently work toward your target bid, including when you adjust budgets." In its documentation, Google gives its own example: target CPA $10, actual CPA $5 — the campaign will now deliver a result closer to $10. If you want to keep the actual $5, set your target to $5.
In other words, the target stopped being a guideline of "no worse than." It became a value the system pulls the result toward from both sides. Better than target — it will pull it down to the target. For an advertiser this means one simple thing: the number in the target field now has to be the number you actually want to get. Not a buffer, not a ceiling "just in case," but a working value.
Two more facts from the documentation that are easy to miss. Google does not change your targets and budgets automatically — all responsibility lies with the advertiser. And the change applies specifically to the combination of two conditions: a target-based strategy plus the "Limited by budget" status. Campaigns that are not limited by budget are not affected by this logic — they already worked close to the target before.
<!-- VISUAL: "before / after" diagram — actual 400–500% against a 300% target before 17.08.2026, and the actual result pulled to 300% after — caption: The gap between actual and target no longer stays with the advertiser -->
Who this affects
The campaign types for which Google changed the behavior of target-based strategies:
- Search
- Shopping
- Performance Max
- Demand Gen
- Travel
For Display and Hotel, the new behavior was already in effect earlier — nothing changed there. App campaigns, Video reach campaigns and Video view campaigns keep working under the old logic.
In practice, the "Limited by budget" status is the norm, not the exception. The system shows it wherever it predicts: with a larger budget you would get more conversions. Almost every profitable campaign sees this warning — and those are exactly the campaigns we launch. Comforting yourself with "this is about isolated cases" is not worth it.
One category got luckier. If a campaign already captures almost all available search inventory (search impression share close to the maximum), this update will most likely affect it only weakly. But such campaigns are a minority.
A separate nuance for Performance Max and Demand Gen: Google warns that in multichannel campaigns the distribution of traffic across channels may also change, because the system optimizes more strictly toward the set target.
Why Google did this
The official version goes like this: overshooting made results unpredictable when an advertiser changed the budget. You raised the budget — efficiency jumped. The new logic gives predictable scaling: results stay near the target at any budget.
There is another side to this coin, and here is how I see it. When you tell a seller your budget, the seller adjusts the price exactly to it. Verified at a car dealership: tell a dealer "my budget is $20,000" and they will sell you a car for $20,000, even if it costs $10,000. A target in Google Ads now works the same way. You tell the system your number; the system could do better, but it takes the extra efficiency for itself, leveling the result to the number you named.
So the main practical takeaway of this article is simple: the number in the target field is information you voluntarily hand to the system. After August 17, it works against you if it diverges from your actual results.
Honestly: this is one of the boldest updates in Google Ads across all my 17+ years of working with the platform. It will hit hardest those who do not follow platform changes: the campaign will not "break," no errors will appear in the account. The CPA will simply start rising toward the target level, and ROAS will slide down toward it — quietly and within "normal" range.
What to do: three options
Option 1. Pull the target to the actual result. You are overshooting your target ROAS — raise it to the actual values or slightly above. Your actual CPA is below your target CPA — lower the target to the actual. Google directly advises this in its documentation: if you want to keep your recent efficiency, update the target to match it. This option works for those who regularly look into the account and are ready to adjust manually. Setting an unrealistic target with a "ceiling" is now twice as dangerous: either the campaign will not launch properly, or the system will honestly bring the actual result exactly to that number.
Option 2. Increase the budget. The change hits campaigns with the "Limited by budget" status. Remove the limitation — and you remove the main condition for the new logic to apply. The price is that at a larger budget, ROAS and CPA usually deteriorate slightly on their own. For campaigns that overshoot their target, this is often an acceptable trade. A combination also works: raise the target ROAS a little, increase the budget a little, and find the point where the actual result holds near the values you need.
Option 3. Drop target-based strategies. My main option. Move to maximize conversions or maximize conversion value: the system spends the budget on maximum results and does not have your number to "level" efficiency toward. Yes, these strategies either constrain delivery when a target is set too tightly, or deliver an actual result with no target to aim at. I hesitated about target-based strategies for a long time for exactly this reason, and after this update, for most accounts I manage, the choice is obvious.
Pick one option for your situation — and do it consciously, not when the numbers have already started sliding. The worst strategy right now is to do nothing and learn about the change from a monthly report.
When this change is not a problem
Honestly, the cases where you can take your time:
- Your campaigns do not have the "Limited by budget" status. The new logic applies only to this combination of conditions.
- Your targets are already set at the level of actual results or below. The system simply has nothing to pull up.
- Predictability of results matters more to you than squeezing the maximum efficiency out of every dollar. For some businesses, a stable CPA at the target level is an acceptable price for calm budget scaling.
- You work with App campaigns or reach/view video formats — behavior there has not changed.
In all other cases, especially if the actual result has long and noticeably exceeded the target, an account check is needed right now.
Not sure whether this is already hitting your campaigns
The symptom of the new logic is insidious: the account shows no error, the budget is spent as usual, and efficiency slowly slides toward the level of targets you once set "with a buffer." On its own, this is easy to write off as seasonality or competition.
I do Google Ads audits: I look at your bids, budgets and targets specifically through this change — which campaigns are limited by budget, where the actual result diverges from the target, and what exactly to move. One step: an application on the audit page.
<!-- VISUAL: chart — a line of actual CPA rising from $5 to the $10 target after 17.08.2026 — caption: This is what "working more consistently toward the target" looks like in a campaign report -->
Frequently asked questions
What changed in target CPA and target ROAS on August 17, 2026? Google changed how target-based strategies behave for campaigns with the “Limited by budget” status: the system now keeps actual results closer to the target you set. Overshooting — for example, an actual 400–500% against a 300% target ROAS — no longer stays with the advertiser: the result is pulled toward the target.
Which campaign types does the change apply to? Search, Shopping, Performance Max, Demand Gen and Travel. For Display and Hotel the new behavior was already in effect earlier, while App campaigns, Video reach and Video view campaigns keep working under the old logic.
Does Google change my targets and budgets automatically? No. Google does not change your targets and budgets automatically — all responsibility lies with the advertiser. In its documentation, Google gives an example: a target CPA of $10 with an actual CPA of $5 — if you want to keep the actual $5, set your target to $5.
What should I do if a campaign consistently overshoots its target? Three options: pull the target to the actual values; increase the budget and remove the “Limited by budget” status; or drop target-based strategies in favor of maximize conversions or maximize conversion value.
When is this change not a problem? If your campaigns do not have the “Limited by budget” status, if your targets are already set at the level of actual results or below, or if predictability of results matters more to you than maximum efficiency.
Sources
- Google Ads Help. Changes to target-based bid strategies — the official documentation of the change: the date of August 17, 2026, the example of a $10 target CPA with a $5 actual, the list of campaign types and the courses of action: support.google.com/google-ads/answer/17061251
- PPC Land. Google Ads gets promotion mode and a major bidding overhaul this August — coverage of Google's announcement of June 15, 2026 (Ginny Marvin, Ads Product Liaison; the Accelerate with Google blog): a package of three updates that includes the target-strategy change: ppc.land/google-ads-gets-promotion-mode-and-a-major-bidding-overhaul-this-august
About the author
Ievgen Kovalevskyi has worked on websites and advertising since 2009, and for the last 3 years — on artificial intelligence. He builds full multi-agent systems that replace entire departments in businesses and for experts. Google Partner, co-founder of Digital Agency WebCet.