Structured data (often called "schema markup") is not a shortcut into AI answers. Google says plainly that there is "no special schema.org structured data that you need to add" to appear in AI Overviews or AI Mode (Google Search Central: AI features and your website, last updated 10 December 2025), and an observational study by Ahrefs found no major citation uplift from adding it. Structured data is still worth getting right for a few basic jobs, such as telling search engines your business name, logo and contact details, and we recommend prioritising clear, visible page content.
This guide separates what official sources say, what the research suggests, and what we'd recommend for a small business.
What structured data actually is
Structured data is machine-readable markup that describes page content using a standard vocabulary such as schema.org. It is often added as a JSON-LD code block that visitors do not see (Google Search Central: Introduction to structured data). For example, it can state "this is an organisation, its name is [Business name], its logo is at this address, its phone number is this".
Search engines and other software can read this markup to help them understand what the page is about.
Historically, its main visible payoff was rich results: star ratings, recipe cards, event dates and similar enhancements in Google Search. That landscape has shrunk, as the next sections explain.
What Google says about structured data and AI features
Google's guidance on AI Overviews and AI Mode is specific:
- There are no additional eligibility requirements or special AI optimisations.
- No special schema.org markup is required.
- A supporting-link page must be indexed and eligible to appear in Google Search with a snippet.
The same page recommends keeping structured data consistent with visible page text (Google Search Central: AI features and your website).
In short, Google treats structured data as part of normal SEO hygiene, not as an AI-specific lever.
What other AI tools say
- OpenAI (ChatGPT search): OpenAI documents OAI-SearchBot as its search crawler and recommends allowing it and its published IP ranges. That crawler guidance does not identify schema markup as a requirement for inclusion (OpenAI: Overview of crawlers).
- Microsoft Bing and Copilot: Bing's Webmaster Guidelines say accurate structured data may support clearer grounding, but do not guarantee visibility or traffic. Markup must match the visible page (Bing Webmaster Guidelines).
- Perplexity: Its public crawler guidance explains crawler access, but does not specify schema markup as a requirement for answers (Perplexity: Crawlers).
What the evidence says about schema and AI citations
Claims that schema causes more AI citations can confuse correlation with cause. Other SEO work on the same pages could explain the association.
An observational study by Ahrefs was published in May 2026. It tracked 1,885 pages that added JSON-LD between August 2025 and March 2026 and compared them with similar pages that didn't. Its headline conclusion: "schema had no clear positive or negative effect" on citations in Google AI Overviews, AI Mode or ChatGPT (Ahrefs: We Tracked 1,885 Pages Adding Schema. AI Citations Barely Moved, 11 May 2026).
The study also found a small, statistically significant 4.6% decline in AI Overview citations relative to matched controls; the authors could not establish whether schema caused it. Simultaneous page changes could not be fully separated from schema.
Every studied page was already cited, follow-up lasted 30 days, and schema types were pooled. The findings do not establish that schema is useless, or justify promising citations.
What structured data is still useful for
For a typical small business website, these are reasonable, low-effort uses:
1. Organization (or LocalBusiness) markup on your home or About page. Google says Organization markup can help it "disambiguate your organization in search results", and the logo property can influence which logo appears in Search results and your knowledge panel. For businesses with a physical location, Google recommends using the most specific LocalBusiness subtype (Google Search Central: Organization structured data, last updated 8 September 2026). This is about getting basic facts right, which can help systems that support that markup.
2. Breadcrumb markup, if your site has a clear page hierarchy. It describes where a page sits in your site.
3. Markup that matches a specific Google feature you qualify for, such as product, event or recipe markup. Check Google's current documentation first, because supported features change.
Your website platform or SEO plugin may already add basic markup. Often the job is checking that it is accurate, not writing it from scratch.
What to skip or stop worrying about
FAQ markup for rich results. Google's documentation changelog records that FAQ rich results stopped appearing in Google Search from 7 May 2026, and the feature's documentation was removed in June 2026 (Google Search Central: Latest documentation updates). Adding FAQPage markup will not bring back that visual feature. A well-written FAQ section on the page can still help readers; see our guide to FAQ pages.
Retired types. Google has also retired practice-problem rich results and removed dataset markup support from Google Search. Dataset markup remains relevant to Google Dataset Search (Google documentation updates). If your site doesn't use these, there's nothing to do.
Marking up things people can't see. Google's rules say "Don't mark up content that is not visible to readers of the page." Breaking its structured data guidelines can lead to a manual action that removes rich result eligibility (Google Search Central: General structured data guidelines, last updated 10 July 2026).
Paying for "AI schema" packages that promise citations. The official guidance cited here does not guarantee citations.
What we recommend prioritising before schema
If your goal is to be understood and quoted by AI answers, spend your time here first:
- Put the key facts in visible text. Your services, areas served, prices or price approach, opening hours and contact details should be readable on the page, not only in code or images.
- Answer questions clearly near the top of each section. We recommend short, specific, standalone answers for clarity, not as a guarantee of citation. See how to write pages AI answers can quote.
- Make sure your pages can be crawled and indexed. A page that isn't indexed can't be a supporting link in Google's AI features.
- Keep facts consistent across your website and other profiles where your business appears.
For more on why being cited matters, see What AI citations are, and why they matter for small businesses.
A quick structured data check for your site
- Run your home page through Google's Rich Results Test for Google-supported rich results, or the Schema Markup Validator for general schema validation.
- Check that Organization or LocalBusiness details (name, logo, address, phone, website) are present and correct.
- Confirm everything in the markup is also visible on the page.
- Remove or fix markup that describes things the page doesn't show.
- Don't add new markup purely to chase AI citations.
What is in your control, and what isn't
In your control: accurate, honest structured data; clear visible content; a site that can be crawled and indexed.
Not in your control: whether Google shows a rich result, whether any AI tool cites your page, and how each tool chooses sources. Structured data can help software understand your business. It doesn't guarantee rankings, rich results or AI citations.