Google's Aug 17 bidding change: what budget capped accounts lose

Google's August 17, 2026 bidding change does not fix broken bid targets. It punishes the accounts that set targets loose on purpose, and it quietly breaks the accounts that follow Google's own recommended fix. Googles own example: a campaign with a $10 Target CPA that has actually been converting at $5 will drift back toward $10 once the change lands. Consultant Joey Bidner and Googles own Ginny Marvin have already disagreed, on the record, about who that serves, and neither of them is asking the question that actually decides it.

We run enterprise Google Ads accounts for a living. The answer to who loses is in the search terms report rather than the dashboard or the LinkedIn argument about it, and almost nobody explaining this change has opened one.

What does the August 17 bidding change do?

Target CPA and Target ROAS are both Smart Bidding strategies. With Target CPA you set an average cost per conversion you are willing to pay. Target ROAS asks for a return on ad spend as a percentage instead. Any campaign running one of those strategies that Google Ads currently marks "Limited by budget," meaning the daily budget is capping how often it could otherwise show, gets pulled toward its stated target starting August 17 instead of being allowed to run past it. A campaign with a $10 Target CPA that has been quietly converting at $5 will move toward $10, and a campaign targeting 200 percent ROAS while delivering closer to 400 percent settles back toward 200. Google is not adjusting anyone's numbers directly. It is making the number in the box start to mean what it says.

It applies to Search, Shopping, Performance Max, Demand Gen, and Travel campaigns in Google Ads, Search Ads 360, and Display and Video 360. A separate notice gives Demand Gen line items inside Display and Video 360 the same August 17 deadline, which an agency auditing only its main Google Ads seats will miss. Manual CPC and Target Impression Share are excluded, and so are App campaigns, Video reach campaigns, and Video view campaigns. Hotel and Display campaigns already run this way today, so nothing changes for them on the 17th.

Google shipped a Bid Target Adjustment Tool inside Google Ads accounts on July 6, giving advertisers roughly six weeks to look at exposed campaigns before the change takes effect. Any account with a campaign that was budget limited on an affected strategy at any point in the last twelve months has a notification waiting in it right now.

Two groups of advertisers lose when Google enforces bid targets

Most coverage treats an underperforming target as a bug waiting to be fixed. For two groups of advertisers it was a deliberate setting rather than a bug, and August 17 removes the thing that made it work.

The first group set their targets loose on purpose. Joey Bidner, a freelance Google Ads consultant, said as much in a LinkedIn post: "Some of my best-performing accounts INTENTIONALLY run with low tROAS or high tCPA targets because they give smart bidding the freedom to explore, discover new customers, and find efficiencies over time." We made a version of this argument about Smart Bidding's blind spots two weeks ago: the machine does the math well and has no idea which room to explore is worth keeping. Take that room away and Smart Bidding has less reason to spend on an unproven query when a known converter is sitting right there. Bidner called the update "one of the most self serving Google-centric changes we've seen in years."

Google's Ginny Marvin, the company's Ads Product Liaison, answered him directly in the same thread. The change only touches budget constrained campaigns, she said, because unconstrained campaigns already behave this way: "we're making the controls clearer." Neither is wrong about what the update does, they disagree about who it serves.

Maggie Humphrey, Director of Ecommerce at Cypress North, put the contradiction to Marvin directly: Google says the change only affects budget constrained campaigns, while also describing it as changing bidding systems to deliver more predictable performance generally. Those two claims can both be true and still read like two different pitches to two different audiences.

The second group gets almost no coverage. These are the advertisers who take Google's own recommended fix, open the adjustment tool and match the target to recent performance. Rob Johnston, a digital marketing consultant, explained the problem with that, commenting directly on Bidner's post: "What was an efficient CPA at a particular volume today, won't necessarily be tomorrow... as soon as the SERP gets more competitive, if quality scores reduce, etc., you then need to manually increase the tCPA again when volumes fall. Currently the system figures all of that out for you when setting more conservative targets." A looser target used to absorb that drift automatically. Match the target to today's number and a person now has to notice the drift and fix it by hand, and most accounts do not have anyone assigned to that job.

Does this change affect my account?

Check two things: the bid strategy and the campaign status. If a campaign runs Target CPA or Target ROAS and Google Ads currently shows it as "Limited by budget," it is affected. If it runs Manual CPC, Target Impression Share, or sits in an App, Video reach, or Video view campaign, it is not. A campaign that is not budget limited today is also not affected, regardless of bid strategy, since the new behavior only applies once the budget itself is the constraint.

Google's tool cannot tell you which option to pick

Google's Bid Target Adjustment Tool gives four honest options: keep the current target and accept the drift, match the target to recent performance, set a custom target, or drop the target entirely by switching to Maximize Conversions or Maximize Conversion Value. What it does not do, and cannot do from inside the platform, is tell you which option fits your account. That answer lives one level below the dashboard, in the search terms feeding that campaign right now.

The question is whether your current CPA or ROAS is durable efficiency or a temporary accident of this month's query mix. A campaign converting at $5 against a $10 target could be winning because it found a genuinely efficient, repeatable segment of demand. It could also be winning because a handful of unusually cheap, high intent queries happened to convert well this month, queries that will not be there in September. Google's dashboard cannot tell the difference, but a query level pull can, and it takes about fifteen minutes.

Pull the search terms report for the campaign in question over the last 90 days, sort by conversions descending, and add a running cumulative percentage column. If the top 20 percent of converting queries are carrying 70 percent or more of total conversions at well below target cost, and those top queries are branded or clearly high intent rather than long tail guesses, the efficiency is concentrated and probably real. Matching the target to recent performance is a reasonable move. If conversions are spread thin with no query or small group of queries dominating, or if the concentration only shows up in one recent month, pull the same 90 day window from three months earlier and compare. A concentration that shows up once is a seasonal accident rather than a trend, and that $5 CPA was never a stable number to lock in. I no longer trust a single 90 day window on its own for this reason. In that case a custom target, set closer to what the durable segment of queries supports, protects you from committing to a number the account cannot repeat.

None of the four options in Google's tool is wrong. The mistake is picking one without running that query level check first, which is the step every published explainer of this change skips.

What should I do before August 17?

1. Pull every campaign flagged "Limited by budget" running Target CPA or Target ROAS, across Google Ads, Search Ads 360, and Display and Video 360 if you manage across platforms.
2. For each one, run the 90 day search terms concentration check above before opening the adjustment tool.
3. For accounts with durable, concentrated efficiency, match the target to recent performance, or set it slightly above recent performance to leave the campaign a little room.
4. For accounts where the efficiency looks like a seasonal or query mix accident, set a custom target based on what the durable segment supports, not the blended average.
5. Whatever you change, wait one to two full conversion cycles before judging the result. Google's own guidance says the same thing, and it is right: Smart Bidding needs that long to settle into a new target, and judging it on day three just measures the relearning period, not the actual outcome.
6. Do not reach for data exclusions or new bid limits as a response to this change. That is a different tool for a different problem, and using it here adds a second moving variable to a measurement window that needs to stay clean.

Budget capped accounts have to choose a number on purpose now

Google is not wrong that a target nobody has looked at in a year is a real problem worth fixing. Bidner is not wrong that some of those loose targets were never an oversight. Both things are true in different accounts, and the accounts that lose here are the ones that answer that question by guessing instead of checking. Google's tool will take whatever number you give it and hold you to it, honestly and exactly as promised. It was never going to tell you which number to give it. That part was always going to be someone's job, and after August 17, it is worth making sure it is actually someone's.

FAQ

Autopilot Isn't Strategy: The Google Ads Automation Problems Your Dashboard Hides

Google Ads automation tends to look good on the dashboard, and the search terms report is usually where the problems show up. The most common Google Ads automation problems are budget drifting to low intent queries, Smart Bidding optimizing toward conversions that are not sales, and Performance Max spending across channels the advertiser cannot budget individually. None of it shows up as a red number in your reporting, because campaign level averages absorb it.

We run enterprise Google Ads accounts for a living, and we are not anti automation. Nobody can hand calculate a bid for every auction, and the credible data people in this industry stopped arguing for manual bidding years ago. We made the longer version of this argument when over reliance first showed up in growth numbers: automation is a setting, and someone still has to know what that setting can't see.

Is Smart Bidding wasting my money?

Smart Bidding is Googles machine learning bid system that sets a bid for every auction based on predicted conversion likelihood. It does that math better than any human will. It also has no idea which conversions matter. If an account counts form fills, phone calls, and newsletter signups equally, Smart Bidding will chase whichever is cheapest, and the cheapest one is almost never the one worth money. The waste comes from the conversion signal, not the bidding math.

Google's systems take your data at face value, feed them a proxy metric and they will optimize the proxy while your cost per lead climbs. Industry wide, it has: LocaliQ's 2025 benchmarks put the average cost per lead at $70.11, up 5.13% year over year, with 13 of 23 industries paying more than the year before.

Where does Google Ads automation actually waste money?

Google Ads automation wastes money in four places. Broad match wandering into queries that will never buy. Bids on branded terms that would have converted anyway. Conversion definitions that reward volume over value. And the automated campaign types that spread one budget across channels you cannot control separately. Query level waste is usually the largest, and no dashboard view will show it to you.

Finding it takes about an hour and no special tools. Pull the search terms report for the last 90 days, sort by cost. The export itself only takes a few minutes even on a big account. Flag every term with meaningful spend and zero conversions, then trace each one back to the match type or campaign setting that let it in. It is tedious but in most accounts this is where the recoverable spend sits.

This is not just us seeing it. Optmyzr's 2026 study of 30,000 accounts found that exact match leads on efficiency in nearly every non brand segment, while broad match has become the dominant match type by budget. Exact match lost 9.5 points of spend share since 2022. On branded terms the same study found broad match means more spend and fewer conversions. Automation moved budget toward the match type that performs worst on brand and loosest everywhere else. Reversing that takes manual match type review.

Five Smart Bidding problems that never show up in your dashboard

You probably know the first three already. Four and five are the ones that get ignored, and they usually cost more.

1. Learning phases spend real money to learn

A target change can push Smart Bidding back into learning. So can a conversion tracking edit or a big budget shift. The system spends while it relearns. A large account can absorb that as noise. On a $5,000 per month account it is real money buying data instead of customers.

2. It optimizes to the easiest conversion, not the one you sell

Open the conversion actions column and count what is in it. Takes about two minutes. Do it now if you have the account open. An account counting five conversion actions equally is telling the machine that a newsletter signup equals a demo request, and the machine believes you. Bids flow to whatever converts cheapest, and the pipeline quietly fills with the conversion nobody can invoice. There is no setting that fixes this. You need one primary conversion action per campaign goal, valued the way the business values it.

3. Target tinkering resets the machine

Nudging tCPA every few days feels productive. Each change just restarts the learning clock. Change targets rarely, and only when there is enough conversion volume to judge the result.

4. Performance Max harvests the brand traffic you already owned

In Optmyzr's 2024 study of 503 accounts, run before Google added Performance Max negative keywords, 91.45% had search term overlap between Performance Max and their Search campaigns, and exact match keywords did not prevent it. When PMax captures your brand queries, its reported ROAS inflates on conversions your plain brand campaign would have won for less.

5. On low volume, the algorithm is guessing

Machine learning needs data, and a handful of conversions a month does not give Smart Bidding enough of it to predict anything reliably. Long B2B sales cycles and niche products feel this hardest so those accounts need a person reading query intent.

One more that sits just outside Smart Bidding: Google's auto apply recommendations can change bids, budgets, and keywords without approval, and every one of those changes should get looked at by a person before it stands.

Can you see what Performance Max is spending on?

Partially. Performance Max is Googles automated campaign type that takes one budget and spends it across Search, Display, YouTube, Gmail, Discover, and Maps, and the visibility into where that money actually goes arrived years late and is still not complete.

For its first three years, advertisers could not see full search terms or apply negative keywords at any real scale. Campaign level negative keywords only launched in January 2025 capped at 100, raised to 10,000 that March, and full search terms reporting rolled out from May 30, 2025. Those controls exist because advertisers spent three years demanding them. Channel level budget control still does not exist.

When smec analyzed 250+ retail campaigns, the traffic AI Max matched itself delivered roughly 35% lower ROAS than the keyword matched traffic in the same campaigns, with campaign level results swinging from 42% above baseline to 35% below. Googles own numbers say AI Max typically adds 14% more conversions or conversion value at similar cost. Both can be true in different accounts, which is why someone needs to read yours.

When to override Smart Bidding

Let the automation run when volume is high, the conversion data is clean, and the thing it is optimizing toward actually produces revenue. Otherwise override it. In practice that means brand search, where you are usually paying an algorithm to win auctions you already owned. Low conversion volume too, the predictions down there are guesses. And long sales cycles, where the real conversion happens months after the click and all the machine ever sees is an early proxy.

And watch what Google itself changes. Smart Bidding Exploration, launched in 2025, lets Google relax your ROAS target by a chosen 10 to 30 percent to chase unproven queries. On August 17, 2026, a bidding change takes effect that will make budget limited campaigns on Target CPA or Target ROAS bidding deliver toward their stated targets even where actual performance has been beating them. If your account runs hands off, that one deserves attention now; we are publishing a full breakdown of who loses and what to do about it in two weeks.

Human guided automation: what to control and what to release

Human guided automation means the machine keeps the bidding and the matching, and a person keeps the three calls it cannot make: which conversions actually count as success, which queries and placements are off limits, how much budget each objective deserves. Everything else the machine can keep.

In practice: a weekly search query based review with a real negative keyword program behind it, one meaningful conversion action per campaign goal, targets changed rarely and measured properly, PMax watched at the channel and brand level. None of it is complicated, it is just work the dashboard will not do for you, and the results of doing it show up in numbers.

Autopilot is a fine setting, it is not a strategy. The parts you can do yourself are all in this article, starting with the search terms report. Where accounts usually need help is wiring conversions to the CRM so the machine optimizes to deals instead of form fills, and untangling what Performance Max is really doing under the brand line. That is the conversation we are useful for.

FAQ