Google Ads Is About to Quietly Raise Your Cost Per Lead (Unless You Do One Thing Before 17 August)

From 17 August 2026, Google Ads will make budget-limited campaigns spend up to the Target CPA you set, even if they've been beating it for months. If your target says $100 but you've been getting leads at $50, say goodbye to the $50. Google emailed affected advertisers on 2 July. Most of those emails are still sitting unread. Don't be that advertiser.

What is actually changing on 17 August 2026?

Right now, a budget-capped campaign with a Target CPA can overachieve. Set a $100 target, and if Google finds leads at $50, you pocket the difference. Lovely.

From 17 August, Google stops being generous. Budget-limited campaigns will be steered back toward the target you actually typed in. Google's own example: a campaign with a $10 target that's been converting at $5 will drift back to $10.

In other words, your performance no longer reflects what your campaign can do. It reflects what you said you'd accept, even if that number was set two years ago by an agency you've since fired.

This hits Search, Shopping, Performance Max, Demand Gen and Travel campaigns. Google won't touch your targets or budgets for you. There's a new Bid Target Adjustment Tool (live since 6 July) to review everything, but the reviewing is your job.

Why is Google doing this?

Google says it's about "consistency and predictability." And sure, there's some truth there. The old behaviour got a bit weird whenever you changed budgets.

But let's be honest about the incentives. Under the old rules, Google was leaving money on the table. Under the new rules, every lazy advertiser with a padded, stale or forgotten target automatically starts paying more. Same leads, higher prices, and Google didn't have to lift a finger.

Here's the sentence that matters: this change is a tax on inattention. It doesn't punish advertisers. It punishes neglect. One of those is fixable.

Will this make my leads worse too?

Here's my slightly spicy take: tight CPA targets were already a lead-quality trap, and this makes them worse.

Target CPA chases cheap conversions, not good ones. And the cheapest leads are reliably the worst. Form spam. Tyre-kickers. People downloading a brochure between Netflix episodes. Squeeze the target hard enough and you're literally instructing Google to fill your CRM with junk.

It's why I rarely cap CPA on lead gen at all. Most of my campaigns run Maximise Conversions with a budget cap, and I feed real sales outcomes back into Google so the algorithm learns what a good lead looks like, not just a cheap one.

What happens to advertisers who do nothing?

Three things, in order:

1. August and September get pricier for everyone. Set-and-forget accounts drift up to their loose targets and start bidding harder, which inflates auction prices across the board.
2. Then they run out of puff. Bigger bids on the same capped budget means fewer clicks. Their impression share shrinks.
3. Then they quit. Cost per lead doubles toward some stale target, they decide "Google Ads doesn't work anymore," and they leave. That's real competition exiting your market.

If your account is well managed, you just have to hold your nerve for six weeks while the autopilot crowd self-destructs.

What should I do before 17 August?

The whole audit takes about an hour:

1. Filter your campaigns for "Limited by budget." Anything with that status plus a Target CPA or ROAS is in scope. Check the last 12 months, not just today.
2. Compare each target to actual performance. Beating your target? From 17 August, that gap gets donated to Google. Brand campaigns are the usual suspects. They smash loose targets all day.
3. Pick a move per campaign:
4. Tighten the target to match your recent actuals, or
5. Ditch the target and run Maximise Conversions with your budget as the throttle, or
6. Set the target at your true walk-away cost per lead, or
7. Uncap the budget so the change doesn't apply at all.
8. Check again in early September once the dust settles.

The bottom line

Google built a system where doing nothing costs you money, sent one email, and shipped one tool. Advertisers who look at their accounts keep their efficiency. Everyone else donates it.

And if your agency hasn't mentioned any of this, six weeks from the deadline, that's worth thinking about too.