Google Ads Changes Its Bidding on August 17, 2026: What It Means for All Your Campaigns

Google is changing target-based bidding for budget-limited campaigns across Search, Shopping, Performance Max, Demand Gen, and Travel. What changes, who is affected, and what to do before the deadline.

Author:

René Dallmann

Google is changing how budget-limited campaigns on a target-based strategy get delivered: they will hold their target more consistently instead of beating it. These are campaigns whose budget is maxed out daily and that optimize toward a Target ROAS or Target CPA through Smart Bidding. The change runs across Search, Shopping, Performance Max, Demand Gen, and Travel. If you run more efficiently than your target today, you stand to lose that lead unless you act.

The short version

Deadline August 17, 2026: Budget-limited campaigns on a target-based strategy (Target ROAS, Target CPA, Target CPC for Demand Gen) will then hold their target more consistently, even through budget changes.
It affects several campaign types: Search, Shopping, Performance Max, Demand Gen, Travel. Display and Hotel are already switched over.
Today’s overperformers get pulled toward target, so the CPA rises or the ROAS falls toward it.
Google changes nothing automatically. To keep your performance, you move the targets yourself.
From July 6, 2026, the Bid Target Adjustment Tool helps you do that.
Exception: Manual CPC and Target Impression Share stay untouched.

What changes in Google Ads bidding?

Today the budget is the brake on many campaigns, not the target. The campaign runs above target because the budget caps it first. Google confirms it: budget-limited campaigns overshoot their goals and wobble as soon as you touch the budget.

From now on, the bidding system holds the campaign consistently to the set target and keeps it steady through budget changes. Google’s example: target CPA of $10, actual CPA of $5, and after the switch delivery drifts toward $10. Google’s published example is Target CPA; the same logic applies to Target ROAS, where a ROAS above target would be expected to slide toward it. It reads like stability, but it costs you efficiency unless you actively lock in your lead.

Who is affected, and who isn’t?

It hits every campaign in “Limited by budget” status that runs a target-based bid strategy.

Strategies: Target CPA and Target ROAS, plus Target CPC for Demand Gen.
Campaign types: Search, Shopping, Performance Max, Demand Gen, Travel. Display and Hotel already work this way.
Out of scope: Manual CPC and Target Impression Share. Google’s words: “It does not impact manual CPC or Target Impression Share bid strategies.” App, Video reach, and Video view campaigns also stay unchanged.

So if you run on manual CPC, you do nothing. There is no end for Manual or Enhanced CPC anywhere in this. Everyone else, which is most accounts, is in.

What does it mean per campaign type?

Search: Target CPA and Target ROAS campaigns that run budget-limited above target move toward the target.
Shopping: The classic D2C case, usually Target ROAS. Above-target campaigns hold the ROAS more consistently instead of beating it.
Performance Max: Same mechanics, often on Target ROAS. Capped PMax with a strong ROAS belongs on the list.
Demand Gen: Target CPC counts here too.

What you need to do now

One task: go through your budget-limited target-based campaigns and decide per campaign whether to hold today’s efficiency and move the target, or let the campaign run to its set target. The timeline:

From July 6, 2026: The Bid Target Adjustment Tool is live, and a notification in your account points you to it. Hit “Apply” to set the target to your recent actual performance.
By August 17: Review every budget-limited target-based campaign, mark the overperformers, move the targets where needed.
August 17 to 31: Transition window. Performance Planner gives shaky forecasts, so park big budget calls before or after.

What we do in our accounts

We go through every account once in full, not just Shopping. Filter on “Limited by budget” plus a target-based strategy, drop the manual campaigns. For each overperformer the call is the same: protect margin or release growth. Plus the check most teams skip, whether the targets still match the margin at all.

What else Google announced

Two things from Google Marketing Live 2026 have no date yet, and we flag them as announced. Smart Bidding Exploration is set to expand to Shopping and Performance Max with a product feed soon. Demand-led pacing for Search and Shopping was also announced. Both are worth watching, but neither has a firm date.

Frequently asked questions

What changes in Google Ads bidding on August 17, 2026?

Budget-limited campaigns on a target-based strategy will hold their target more consistently from then on, instead of beating it. It covers Target ROAS and Target CPA, plus Target CPC for Demand Gen, across Search, Shopping, Performance Max, Demand Gen, and Travel.

Which campaigns are affected?

All campaigns in “Limited by budget” status on a target-based strategy. Manually managed campaigns are not included.

What happens to a campaign above its Target ROAS or Target CPA?

It will deliver more consistently to the target instead of past it. The CPA rises or the ROAS falls toward the target, so efficiency drops. To keep the lead, move the target beforehand.

Is manual CPC affected?

No. Manual CPC and Target Impression Share stay untouched, and a sunset of Manual or Enhanced CPC is not part of the announcement.

What is the Bid Target Adjustment Tool?

A tool in your Google Ads account from July 6, 2026. It shows the historical performance of your affected campaigns, and “Apply” sets the target to your recent level before the change takes effect.

In short

A system change with a clear deadline. Filter your budget-limited target-based campaigns, find the overperformers, decide per campaign between margin and growth. Leave the manual campaigns alone. If you want your account run through cleanly before then, see how we run Google Ads for D2C shops, or get a free look at your account.