What's the difference between AEO and SEO for accounting firms?

SEO and AEO aren't opposites — they're two different finish lines. SEO, search engine optimisation, is the work of getting your firm's pages to rank in the list of results someone scrolls through and clicks. AEO, answer engine optimisation, is the work of getting your firm named inside the AI-generated answer that now sits above that list, or in place of it. The two share some foundations, but they reward different things, and for accounting firms the second is increasingly where a new client actually makes the decision.

It helps to see that they're not enemies. A clean, reputable, well-structured website is good for both, so the SEO work you've already paid for isn't wasted. The catch is that doing one well doesn't carry you in the other. You can rank on page one for "accountant Cape Town" and still be missing from every AI answer, because being in the list of links is not the same as being in the answer that sits on top of it. The list rewards a strong page. The answer rewards a firm the engine can pull together and trust from many signals at once.

What SEO rewards is fairly well understood: keywords, links from other sites, the authority of your pages, and, in the end, a click. The whole model assumes the person leaves the results page and lands on yours. Your ranking is the prize because the click follows the ranking.

AEO rewards something else. It rewards corroborating, trusted signals an engine can synthesise into a recommendation — a complete Google Business Profile, real reviews, structured data that spells out what you do and where, and content that answers the question directly. Here the model assumes the person may never click at all. The engine reads everything, names two or three firms, and the reader acts on that answer without visiting anyone's site. The prize isn't a ranking; it's being one of the names.

For accounting firms, the reason this matters now is simply that the habit has moved. More business owners open ChatGPT, or read the AI summary at the top of a Google search, and stop there. A strategy built only on winning clicks quietly misses every buyer who never clicks — and that group grows every quarter. Choosing an accountant is a researched, high-trust decision, which is exactly the kind people now hand to an assistant to narrow down for them.

So the practical answer isn't to drop SEO for AEO. It's to keep the SEO foundation and add the layer AEO needs on top, because SEO alone won't put you in the answer. That added layer is specific work your usual SEO doesn't cover: the profile, the reviews, the structured data, the answer-first pages. And one warning — your SEO reports won't tell you whether any of it is working, because they measure rankings and clicks, not whether an assistant names you. The only way to know is to ask the assistants the questions your clients ask, and see who comes back.