Where 2026 Marketing Budgets Are Actually Going — and Why

The Flat Budget Problem Nobody Wants to Say Out Loud

Marketing budgets in 2026 are, by almost every measure, stuck. Gartner's CMO Spend Survey — drawn from 401 senior marketing leaders across North America, the UK, and Europe — puts total marketing spend at 7.8% of company revenue, up exactly 0.1 percentage points from 2025. Meanwhile, 56% of those same CMOs say they don't have enough budget to deliver their strategy this year, and 54% report insufficient resources. The money hasn't grown. The ambition has.

This is the operating reality for most marketing functions right now: a budget envelope that is effectively flat against a strategy that keeps expanding. Something has to give. What the data shows is that the first casualties are the old, familiar channels — and the money is being rerouted in ways that aren't always obvious from the outside.

AI Is Taking the Money, But Not Delivering the Returns (Yet)

The single largest internal reallocation happening inside marketing budgets is into AI. CMOs now direct an average of 15.3% of their total marketing budgets to AI initiatives, according to Gartner — up sharply from prior years. Seventy percent say becoming an AI leader is a critical goal for 2026. The catch: only 30% of marketing organisations report mature or fully developed AI readiness capabilities. The same cohort calling AI leadership "critical" mostly admits their internal processes aren't built to implement and scale it effectively. That gap is a structural problem, not a temporary lag.

AI-ready organisations — the 30% who actually have operational maturity — allocate 21.3% of budgets to AI, nearly 50% more than the survey average, and they carry larger overall marketing budgets too (8.9% of revenue versus the 7.8% mean). Readiness is what separates cost from return. One data point that signals this clearly: labour's share of the marketing budget rose from 21.9% to 24.5% in Gartner's data. AI was supposed to reduce headcount costs. Instead, it is raising the price of the people who can run it.

Search Changed Structurally — and Most Measurement Hasn't Caught Up

Multiple independent panels now confirm that somewhere between 58% and 68% of Google searches in the US end without a single click to any website. AI Overviews appear on roughly 48% of tracked queries, and when they do, the top organic result loses between 34% and 58% of its click-through rate, depending on the study. US organic search traffic fell 2.5% year over year as of April 2026 — the first sustained structural decline on record. Long-tail keywords (four or more words), the traditional backbone of content-led acquisition strategies, dropped 4.7% year on year in Q1 2026 according to Semrush.

These are permanent redistributions of attention, not algorithm fluctuations. Here's what actually matters for budget decisions: the traffic that survives is qualitatively different. Clicks coming through after an AI Overview convert 23% better than standard organic clicks, and visitors from AI-generated results show 41% lower bounce rates. The stream is smaller and considerably hotter. That demands a measurement rethink — ranking position and raw session volume have become unreliable proxies for search-driven business value. Brands still optimising for keyword rankings without tracking AI Overview citations are watching the wrong number entirely.

Where the Growth Channels Actually Are in 2026

Against those headwinds, the IAB's 2026 Outlook Study — based on surveys of buy-side media investment decision-makers — identifies a clear hierarchy of channel growth. Social media leads all categories at 14.6% projected year-over-year ad spend growth. Connected TV follows at 13.8%. Commerce media is growing at 12.1%, roughly 30% faster than the overall advertising market.

Social commerce is driving a significant share of social's numbers. US social commerce sales are projected to surpass $100 billion for the first time in 2026, with TikTok Shop expected to account for roughly half of all US social buyers by year-end. HubSpot's State of Social 2026 found that 76.5% of marketers say authenticity now matters more than production quality when it comes to content performance. That figure should prompt a real look at creative budgets, not just channel budgets.

Retail media carries the most counterintuitive momentum of any channel right now. US advertisers are projected to spend $71 billion on retail media in 2026, up from $60 billion in 2025, and brands are engaging with an average of six different retail media networks, per the 2026 State of Retail Media Report by Skai and Stratably. The appeal is direct: these environments carry purchase-intent signals that search used to own, with attribution that links ad exposure straight to transaction data. As on-site inventory within major retail networks tightens, spending has begun spilling into off-site formats and Connected TV overlaid with retailer first-party data — a format that didn't exist at meaningful scale three years ago.

What the Benchmarks Actually Require You to Do

Budget constraints are forcing prioritisation choices that were previously optional. With 56% of CMOs saying they lack the resources to execute their full strategy, there's no longer room to maintain underperforming channels out of inertia. Zero-click search is one casualty of this reckoning. Broadly distributed martech stacks are another — Gartner's data shows martech's share of budget has hit a five-year low as teams consolidate fragmented tools rather than keep paying for overlap.

AI spend without AI readiness is a liability. The 40-percentage-point gap between how many CMOs want to be AI leaders (70%) and how many can actually scale those capabilities (30%) is precisely where budget goes to produce nothing measurable. The organisations pulling ahead are building data infrastructure and internal capability before scaling tool spend — a sequencing decision that sounds obvious but runs against the pressure most procurement and leadership cycles create.

Across ecommerce, real estate, and financial services clients Transformics works with, the pattern is consistent: channel mix assumptions built in 2022, never stress-tested against data that looks fundamentally different four years later. The benchmarks in this piece exist. The harder part — the part that actually determines whether 2026 budgets produce returns or regrets — is acting on them before the next planning cycle forces the decision anyway.