Gartner's CMO Spend Survey has found that marketing budgets have flatlined, delivering a blunt verdict to marketing leaders: the era of budget expansion is on hold, and CMOs now operate in a zero-growth planning environment.

The finding comes from the annual Gartner CMO Spend Survey, the research firm's benchmark study of how marketing leaders allocate their budgets across channels, capabilities and headcount. Demand Gen Report flagged the results, which carry direct consequences for how chief marketing officers build their 2025 and 2026 plans.

What does flatlined budget growth mean for CMOs?

A flat budget is not a neutral event. When overall marketing spend holds steady while media costs, technology prices and customer-acquisition expenses keep rising, CMOs absorb an effective cut. Marketing leaders must now fund every new priority — from generative AI tooling to retail media and first-party data programs — from within an allocation that is no longer growing.

That forces three hard trade-offs:

• Channel consolidation. CMOs have to prune lower-performing channels rather than add new ones on top.
• Technology rationalization. Stacked martech subscriptions compete for a fixed pool of dollars, pushing vendors to prove measurable ROI to keep their contracts.
• Headcount pressure. Agency fees and internal staffing often take the first hit when budgets cannot expand to cover rising input costs.

For a marketing-leadership reader, the signal is clear: the case for every incremental dollar now has to be made against a replacement, not an addition. Budget defense becomes as important a CMO skill as budget deployment.

Why does this survey matter to marketing leaders?

Gartner's CMO Spend Survey is one of the most closely watched benchmarks in the industry because it tracks what CMOs across North America and Europe actually spend, not what they intend to spend. Procurement teams, agency networks and martech vendors all price and plan against its findings.

When a survey of this standing reports that budgets have flatlined, the practical effects spread quickly:

• Agencies should expect scope renegotiations rather than scope growth.
• Martech vendors face sharper scrutiny on renewal cycles.
• CMOs themselves face higher board-level pressure to tie spend to measurable revenue outcomes.

The result also raises the bar for marketing's internal narrative. A flat budget year means CMOs who cannot quantify contribution to pipeline, revenue and retention will struggle to defend even their current allocation in the next planning cycle.

What should marketing leaders do next?

The flatline does not demand retreat. It demands discipline. Marketing leaders who run a fixed-cost portfolio well — cutting underperforming programs fast, consolidating overlapping tools, and concentrating spend where attribution is strongest — can still outperform competitors who treat a flat budget as business as usual.

The Gartner data point serves as a planning assumption, not just a statistic: build the next budget on the expectation of zero growth, and make the value of every existing dollar defensible line by line. CMOs who plan for expansion this cycle are planning against the survey's own evidence.