Google Ads Target Bid Strategy Changes: What Changed in August 2026 and What to Do Now

For years, budget-limited campaigns were the quiet bargain of Google Ads. You set a Target CPA, capped the budget, and Smart Bidding often delivered well under your number. That overperformance felt like skill. Mostly it was a quirk of how the system handled constrained budgets.

Google has removed the quirk.

Since 17 August 2026, target-based bid strategies on budget-limited campaigns have been optimising to the target you set, not the better number they happened to achieve. Google’s own example: a campaign with a $10 Target CPA that had been converting at $5 now “delivers more closely to a $10 actual CPA”. The rollout is gradual, so some accounts saw the new behaviour on day one and others are still seeing it arrive. Either way, the change is live. The window to prepare has closed, and what’s left is to respond.

What changed

The change applies to Target CPA and Target ROAS across Search, Shopping, Performance Max, Demand Gen, Display, Hotel and Travel campaigns, plus Target CPC on Demand Gen. App campaigns and video reach/view campaigns keep the old behaviour.

Two things stayed the same. Campaigns that aren’t budget-limited were already delivering to target, and they carry on as before. And spend still respects your daily budget. Google didn’t touch your targets or your budgets. That part was always on you.

Which is exactly the risk. If you did nothing before 17 August, a campaign that had been beating a lazy target is now drifting toward that lazy target. Your CPA climbs and nothing in the account “broke”. You just got held to your word, and Google did exactly what you told it to.

If you run SMB accounts, pay attention here. Small budgets mean “Limited by budget” is a permanent state for half your campaigns, and stale targets are everywhere. These are the accounts where the shift shows up first.

What to do now

1. Audit every budget-limited campaign. Filter for “Limited by budget” status, then compare actual CPA or ROAS against the stated target. Look at the 30 to 90 days before 17 August and the period since. Any campaign that was performing meaningfully better than its target is the one to check first, because that gap is what the system is now closing.

2. Set targets you mean. Google gives you three options per campaign: keep the target, align it to recent performance, or raise budget to scale at the stated target. If you want to get back to the efficiency you had before the change, align the target to your pre-change actuals. If your target came from real unit economics, your breakeven CPA and a deliberate margin, keep it and take the extra volume.

3. Adjust gradually. A target change bigger than 20% triggers a fresh learning period, and the last thing a campaign that has just been re-baselined needs is a second reset on top. Move in smaller increments and wait a conversion cycle between changes. This is standard bid strategy hygiene, and it matters more than ever right now.

4. Consider dropping the target entirely. For genuinely fixed budgets, Maximize Conversions or Maximize Conversion Value without a target lets budget act as the only constraint. Google itself suggests this for fixed-budget scenarios.

The mindset shift

Targets are now reservation prices, not aspirations. The system delivers what you state, so state what you mean. Control efficiency with the target. Control spend with the budget. Stop using one to do the other’s job.

The advertisers getting burned by this aren’t the ones with aggressive targets. They’re the ones who set a number two years ago and never looked at it again.

Go look at yours.