AEO Budget Planning: How to Allocate AI Search Spend

Last updated - October 2026

98% of CMOs are investing in Answer Engine Optimization. 55% of marketers now have a dedicated AEO/GEO budget. Yet most B2B companies are still guessing how much to spend or treating AEO as a throwaway experiment.

The market is clear enough to budget with confidence. Many teams converge around 25% of search budgets for AI search optimization. Forrester has recommended allocating about 15% of content budget to AI search visibility as a floor.

Austin Heaton is a B2B SEO and AEO consultant. Pricing depends on scope and goals and is shared on a short call. A local AEO add-on is also available. White-label AEO is offered. This guide is the budget plan for AI search in 2027.

Key Takeaways

• Allocate 10-25% of search and marketing budget to AEO/GEO in 2027 based on stage and competitive intensity.
• Pricing depends on scope and goals and is shared on a short call. A local AEO add-on is also available.
• Layer spend: 40-50% content, 20-25% entity authority, 15-20% technical, 10-15% monitoring.
• AI-referred traffic converts far higher than classic organic in published benchmarks, so per-dollar ROI can beat higher-volume SEO.
• Use /pricing and the AEO ROI calculator before finance locks the annual line item.

What Is AEO Budget Planning?

AEO budget planning decides how much to invest in Answer Engine Optimization and how to allocate across content, technical infrastructure, entity authority, and platform-specific work so AI systems cite your brand on buyer prompts.

It differs from classic SEO budgeting because conversion economics differ. Published AI referral conversion rates are often several times higher than average organic, so a smaller AEO line can still move pipeline when the spend maps to extractable money pages and citation measurement.

How Much to Spend by Company Stage

Early-stage B2B SaaS

Pricing depends on scope and goals and is shared on a short call.

Growth-stage B2B SaaS

Priorities shift to competitive displacement, multi-engine coverage, and monthly refresh cycles on BOFU pages. Allocate 15-20% of marketing budget when AI research already shows up in sales calls.

Enterprise

Total GEO programs that include tools and PR can reach hundreds of thousands per year for large brands.

How to Allocate Across Layers

Content (40-50%). Passage-level answers, comparison pages, pricing clarity, freshness cycles, and FAQ blocks that models can extract without inventing claims.

Entity authority (20-25%). Review platforms, earned media, Reddit and LinkedIn presence, and consistent brand language so engines can resolve who you are.

Technical (15-20%). Schema, crawler access, IndexNow where relevant, and Core Web Vitals that keep pages eligible.

Monitoring (10-15%). Weekly citation checks across ChatGPT, Perplexity, Gemini, Copilot, and Claude, plus GA4 AI referral attribution.

Platform Priorities

Weight effort toward where your buyers already research. ChatGPT usually takes the largest share of platform-specific work because of volume and conversion. Perplexity rewards freshness and original research. Gemini overlaps with Google SEO. Copilot and Claude get targeted investment based on buyer ecosystem, not equal split by default.

ROI Timeline

Expect early Perplexity citations in days to weeks, broader ChatGPT movement in weeks to a couple of months, and clearer pipeline signal by months two to three when money pages and prompts are instrumented. Austin Heaton client averages include large AI impression lifts inside 60 days when the operating system is complete, not when a dashboard is the only deliverable.

AEO Budget FAQ

How much should B2B companies spend on AEO in 2027?

Plan 10-25% of search/marketing budget. Pricing depends on scope and goals and is shared on a short call.

What is the local AEO add-on?

Pricing depends on scope and goals and is shared on a short call.

Where should most of the budget go?

Content extractability and freshness usually take 40-50%, followed by entity authority, technical access, and monitoring.

How do you model ROI?

Start with the AEO ROI calculator, then validate against citation baselines and AI referral conversions in GA4.

When should you book a planning call?

Before the annual plan locks. Review pricing, then book a 30-minute strategy call to turn ranges into a 90-day pilot.

Conclusion

AEO budget planning for 2027 is an allocation problem, not a yes/no experiment. Set a stage-fit band, fund the four layers, prioritize platforms by buyer behavior, and measure citations against pipeline.