Target Based Bid Strategies: Your August 17 Google Ads Plan

Google Ads just told advertisers that target based bid strategies will behave differently starting August 17, 2026. If any of your campaigns use Target CPA or Target ROAS and get capped by budget, the bidder will start hitting your target more consistently, which means some campaigns that used to overperform will pull back to the target you actually set. There is also a new Bid Target Adjustment Tool launching July 6 to help you review and update those targets before the change hits.

This is one of those quiet Google Ads updates that reads like housekeeping and then punches a hole in Q3 performance if you ignore it. If you run agency accounts and manage more than a handful of campaigns, you have about six weeks to audit, decide, and adjust. Below is the plain-English version of what changed, why it matters, and the audit plan you can run this month.

What changed with target based bid strategies

Google confirmed the update in an email to advertisers, spotted by Search Engine Roundtable on July 2, and then updated the About Target CPA and About Target ROAS help docs. The change applies to Search, Shopping, Performance Max, and Demand Gen campaigns that use target based bid strategies like Target CPA or Target ROAS. Google’s own words at the Target ROAS help page are direct: “Starting August 17, 2026, Google is updating its bidding systems to deliver more consistent and predictable performance for campaigns that are limited by budget.” You can read the full advertiser bulletin coverage at Search Engine Roundtable.

Here is the mechanic in one sentence. If your campaign is Limited by Budget today, the bidder often overdelivers, so your actual CPA can come in lower than your set target and your actual ROAS can come in higher. After August 17, campaigns that are limited by budget and using target based bid strategies will pull toward the set target, so a Target CPA of $10 with a $5 actual will start delivering closer to $10.

Google’s example from the same help doc puts the risk in numbers. If your Target CPA is $10 and your recent actual CPA is $5, your campaign will deliver more closely to a $10 actual CPA if you make no changes. That is a doubling of your effective cost per acquisition on that campaign. Multiply that across a portfolio of accounts and you have a real Q3 problem.

Why this hits agencies harder than in-house teams

Two reasons this update matters more for agency operators. First, agency accounts often carry long tails of small budgets, and small budgets go Limited by Budget faster than a $50,000-per-day flagship. That means more of your book is exposed to the new behavior than you might expect. Second, you probably set target CPAs and ROAS values months ago when the bidder was quietly overperforming, and the report you send to clients has been showing that gap as a win.

Once the bidder stops overdelivering, that gap shrinks. If a client got used to a $5 actual CPA on a $10 target, they will notice the shift, and they will notice it in August, in the middle of back-to-school and pre-holiday plans. This is a conversation you want to have in July, not after the numbers move.

There is also a bidding-goal-selection angle. If you were leaning on value-based bidding for lead generation or on journey-aware bidding, this update reinforces something you already knew. Target based bid strategies work best when the target is honest. If your target has drifted because the bidder was overperforming for you, this is the forced correction that gets it back in line.

Your target based bid strategies audit plan

You have from now until August 17. Google will send an in-account notification starting July 6 that points to the new Bid Target Adjustment Tool. Do not wait for the tool. Run this five-step audit ahead of time so your July client reports and your August action list are ready.

Step one: pull the Limited by Budget list. In Google Ads, filter campaigns by Status equals Limited by Budget across every account. Export the list with campaign name, campaign type, bid strategy, budget, Target CPA or Target ROAS value, actual CPA or actual ROAS, and 30-day conversions. That report is your master audit list.

Step two: rank by gap size. For each row, compute the delta between the target and the actual value. On a Target CPA campaign, that is target minus actual. On a Target ROAS campaign, that is actual minus target. Sort descending. The top of the list is where the biggest performance shifts will land. Those are the campaigns to touch first.

Step three: decide keep the current performance or accept the target. Google’s advice is straightforward. If you want to keep current performance for campaigns that are outperforming their targets, you should update the targets to match the recent actuals. The Bid Target Adjustment Tool will let you apply those updates in bulk once it launches. If you are happy with the target as written, no action is needed and the campaign will drift to the target after August 17.

Step four: check budget headroom. The other option is to increase the budget so the campaign is no longer Limited by Budget. That works when the client has appetite and the incremental conversions still meet CPA or ROAS goals. Cross-reference this against your placement discipline from the Demand Gen placement exclusion audit and any Performance Max asset work sitting inside Asset Studio, so an unlocked budget goes to good placements and good creative.

Step five: brief the client. Send a one-page note. Explain the change, list the campaigns that will move, and state whether you plan to adjust targets, raise budgets, or accept the shift. Ask for approval on any target or budget change before you touch it. This is the step most agencies skip and then get burned on when September QBRs land.

How target based bid strategies pair with recent Google changes

This is the third significant Google Ads bidding-adjacent change you have absorbed in the last month. In June, Google renamed and refined the inventory tiers you mapped during your inventory type rebrand audit. On June 29, Google added attributed branded searches as a global reporting metric. Now target based bid strategies get a predictability nudge that will cost some accounts money if targets are not updated first.

Zoom out and the pattern is clear. Google is tightening how you can lean on Smart Bidding to overperform. The bidder is being asked to stop leaving money on your side of the table. The counter-move on your side is exactly what agencies have always said clients should do. Set honest targets, keep budgets sized to demand, and audit performance quarterly. If you kept a loose target because it looked good on the monthly report, that free win is ending.

If you run a heavy Performance Max book, this pairs with the AI Max September deadline plan. Your September action list already includes ACA and broad match flips. Add a target based bid strategies review to that plan so nothing surprises you when Q4 pacing starts.

Common target based bid strategies mistakes to avoid

Watch for four operator mistakes as you run the audit.

One, treating Limited by Budget as a bad signal to erase. It is not. A campaign that is Limited by Budget with strong performance is often a signal that demand exists at the current target. The right move may be to raise the budget, not to change the target. Reserve target changes for campaigns where the client is genuinely capped on spend.

Two, applying the Bid Target Adjustment Tool in bulk without a client conversation. The tool will make it easy to snap targets to recent actuals. Doing that without approval will freeze in performance the client did not agree to keep. Bulk apply only after your one-pager gets signed off.

Three, forgetting that August 17 changes are per-campaign. A single account can have some campaigns that welcome the pull toward target and some that get hurt. Do the ranking exercise, then treat each row on its merits.

Four, letting this update push you into a full bid strategy switch during peak season. If a campaign is fragile, do not switch from Target CPA to Maximize Conversions in August just to dodge the change. That trades one problem for another. Fix the target instead, or fund the budget, or plan the strategy change for after Cyber Week when you can afford a two-week reset.

Where to focus this week

Between now and August 17, three moves matter most. First, run the five-step audit and rank campaigns by the biggest gaps between target and actual. Second, watch for the in-account Bid Target Adjustment Tool notification on July 6 and set up a bulk-review session with each account manager. Third, send the client one-pager before August 1 so nobody is surprised. Baseline your performance now, so when September numbers come in you can point at a clean before-and-after chart tied to a known Google change, not a mystery slump.

If you want a second set of eyes on your target CPA and target ROAS audit, or if you would like Elevarus to run the review across your book of business, book a call at Elevarus free consultation. Let’s Grow!