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Google Ads Is Changing How It Counts Your Leads

September 17, 2026

Google Ads just announced a shift toward what it's calling "causality" in its data and measurement tools, meant to prove which clicks actually cause a conversion instead of just correlating with one. The company's own framing is blunt: data plus causality plus better decisions equals profitable growth. Fine as a slide. The part that matters to you is quieter: this changes what counts as a lead in Google's system, and Google's system feeds the budget recommendations your agency is probably already following.

Here's why that's not background noise for an apartment operator. Your funnel is weird by industry standards. Someone clicks an ad in March, tours in April, applies after checking three other communities and their college roommate's Yelp review of your leasing office. Attribution windows that assume a fast retail-style path already struggle with that. If Google's new causal model changes how it credits assisted conversions or long-lag conversions, your cost-per-lead numbers could move for reasons that have nothing to do with your actual performance. And if your agency's optimization is tied to Smart Bidding, which leans hard on Google's own conversion signals, your budget could start shifting toward channels or campaigns that look causally stronger under the new math, whether or not they're stronger for you.

None of this is bad news by default. Better causal attribution could mean your brand campaigns finally get credit for the tour they actually influenced three weeks before the lease-up ad closed it. It could also mean the opposite: a channel you've trusted for two years suddenly looks weaker because the new model discounts assists it used to get full credit for. Nobody outside Google knows yet which way it breaks for a leasing funnel specifically. That's exactly why the question isn't "are you watching this," it's "what does this do to our numbers next month."

Ask your PPC vendor or in-house specialist these, and expect real answers, not a status update:

Google hasn't published a rollout date in the material available, so the vendor who tells you "it's already live and here's the impact" is either ahead of the public announcement or guessing. Ask them to show you the source. A good answer names your account's current attribution model, states plainly whether it changes under the new causal framework, and gives you a number, even a rough one, for how lead volume or CPL might shift. An evasive answer talks about Google's vision for the future of measurement and never mentions your budget by name.

Source: Google Ads, September 10, 2026