Microsoft Advertising is phasing out Max CPC, the bid cap that has let advertisers set a hard ceiling on cost-per-click, for new standalone campaigns starting October 1, 2026. The change applies to campaigns built on Target CPA, Target ROAS, Maximize Conversions or Maximize Clicks strategies; campaigns created before the cutoff keep the control, and portfolio bid strategies are unaffected for now.
Why it matters for the marketing leader: this is Microsoft pushing advertisers further away from manual bid controls and toward fully automated, goal-based bidding, the same direction Google has been steering Search advertisers for several years. “Advertisers who lean on conversion based bidding and use targets (TCPA and TROAS) have an easier time meeting their goals than those who rely on legacy controls like Max CPC,” Navah Hopkins, Microsoft Ads Liaison, wrote, adding that “Max CPCs override stated goals and can lead to spend pacing irregularities.” That is a direct statement that a widely used manual safeguard has been working against the algorithm’s own optimization goals, not alongside them.
The original insight: this removes one of the last manual levers advertisers had to cap runaway spend on outlier auctions, and it does so quietly, through an email notice rather than a headline product launch. Search and PPC teams that still lean on Max CPC as a guardrail against volatile auction pricing have five weeks to test removing it on live campaigns before the option disappears for anything new, which matters more for accounts managing tight budget pacing than for accounts already running on target-based strategies. It is one more data point in the shift already visible across ad platforms taking on more of the analyst’s job, and it extends the same logic seen as bid decisioning keeps migrating away from manual, buyer-side control.
Source: Search Engine Roundtable
