Paid search had a strong run. As organic search traffic declined - squeezed by AI-driven changes to the results page - advertisers shifted more budget into paid. Spend followed impressions. Growth figures looked healthy. But that story had a natural ceiling, and Q2 2026 is where it started showing.
Google paid search growth slowed in Q2 2026, partly because it was measuring against the inflated comparisons set when advertisers first piled in to replace lost organic volume. The tailwind became a headwind. That has direct implications for how PPC teams should plan the second half of the year.
Why the Comparison Period Matters More Than the Trend Line
When paid search absorbed organic's decline, spend and volume both rose from a relatively low base. Any growth measured against that period was always going to look strong. Now those periods are baked into the year-on-year numbers, and Q2 2026 reflects the reality of measuring against already-elevated spend.
This is a reporting and expectation problem as much as a performance problem. If your Q2 numbers look flat or slightly down versus last year, that is not necessarily a signal that campaigns are underperforming. It may simply mean the comparison period was unusually strong. Separating these two things is essential before making budget decisions.
Pull the trailing 24 months in GA4 or your reporting platform. Look at cost per acquisition trends alongside spend trends. If CPAs have held steady while year-on-year growth figures have softened, the campaigns are fine - the benchmark shifted. That is a conversation worth having with clients or internal stakeholders before anyone starts cutting.
What Shifting Ad Spend Actually Signals
The broader signal from Q2 is that ad spend is under more scrutiny. Businesses that moved budget into paid search to compensate for organic losses have now had a year or more to assess whether that worked. Some will renew that commitment. Others will question whether the returns justify the increased investment.
This tends to play out differently by sector. Advertisers in competitive verticals - financial services, legal, home improvement - often found paid search filled the gap effectively, because intent-driven search has always been the right channel for considered purchases. Advertisers in sectors where organic was delivering awareness rather than conversion may find the paid version of that traffic less efficient.
If you are managing accounts where the original rationale for increased paid spend was to replace organic volume, now is the right time to revisit that case. What was the actual conversion value of the organic traffic that was lost? What is the cost per acquisition of the paid traffic that replaced it? If those numbers have never been properly compared, Q2 is a good prompt to do it.
H2 Planning When Growth Assumptions Need Resetting
The instinct when growth slows is to push harder - more budget, broader targeting, new campaigns. That instinct is usually wrong. When the cause is tougher comparisons and market-wide softening, the answer is efficiency, not volume. H2 planning should centre on cost per acquisition rather than click or impression growth.
That means being more deliberate with Smart Bidding target settings. If campaigns are running Target CPA or Target ROAS, check whether those targets are realistic against current market conditions. Targets set during a period of easier growth may now be pushing bidding algorithms into under-delivery or forcing bids down in ways that exclude viable traffic. Adjust gradually rather than making sharp changes, and give the system time to stabilise.
For Performance Max specifically, the same logic applies. If PMax was launched or scaled during a period of higher organic displacement and strong growth, the asset groups, audience signals, and budget allocations may reflect that moment rather than current conditions. Reviewing channel spend data - which is now visible within PMax reporting - gives you a clearer picture of where budget is actually going and where it might be working harder.
The Case for Tightening Account Structure in a Slower Market
When spend was growing quickly, loose account structures were easier to justify. A few wasted impressions here, a broad match term converting at an acceptable CPA there - it all gets absorbed when volume is rising. In a slower market, that tolerance shrinks.
This is a practical argument for reviewing keyword coverage, match type discipline, and negative keyword lists. Broad match and AI-driven query expansion have their place, but in a period where budgets are under pressure, allowing the algorithm too much freedom can erode efficiency faster than it creates it. Exact and phrase match coverage of your core converting terms gives you a reliable floor of performance to measure everything else against.
Search term reports deserve more attention in H2. Run them weekly, not monthly. If AI Max or broad match is expanding into territory that looks tangentially relevant but converts poorly, that is budget leaving the account without return. The slower the market, the more that leakage matters.
Conversion Data Is the Variable You Can Still Control
Market conditions affect volume and competition. They do not affect how well you convert the traffic you do get. In a period of slower growth, conversion rate and lead quality become the primary levers available to paid search teams.
If your conversion tracking is only capturing form submissions or calls, you are giving Smart Bidding an incomplete picture of performance. Feeding enhanced conversions, offline conversion imports, or value-based signals into the account allows bidding to optimise towards outcomes that actually matter - not just the first click or the initial enquiry. That matters more when every pound of budget is under scrutiny.
The same applies to landing pages. A slower growth period is exactly when landing page testing earns its keep. If you have been running the same pages since the organic displacement period, test them now. Small improvements to conversion rate change the economics of a campaign significantly when you cannot rely on increased volume to carry performance.
What to Tell Stakeholders About the Numbers
Q2 slowdown figures will appear in board reports and client reviews. The framing matters. Growth slowing because comparisons are tougher is a different situation from growth slowing because campaigns are failing. The underlying health of an account is visible in CPA trends, conversion volume, and lead quality - not in year-on-year spend growth.
If paid search delivered genuine results during the period when it was absorbing organic losses, document that clearly. Tie spend increases to CPA outcomes, pipeline value, or revenue where possible. That evidence makes the case for maintaining investment through a period of slower headline growth far more robustly than trend lines alone.
H2 2026 does not call for panic or dramatic budget shifts. It calls for tighter management, honest benchmarking, and a clear focus on the metrics that reflect business outcomes. The advertisers who do that well will be better positioned when market conditions ease - and they will have better data to prove it.