Search engine optimization (SEO) is the practice of making your website visible in Google's organic — meaning unpaid — search results. For an accounting firm, that means showing up when someone in your area searches for "CPA near me", "small business tax accountant [city]", or "audit firm for nonprofits".
The word "optimization" can make it sound more technical than it is. At its core, SEO answers a simple question: Does Google trust your website enough to recommend it to searchers? Trust, in Google's framework, comes from three sources:
- Technical health — your site loads fast, works on mobile, and can be crawled and indexed without errors.
- Content relevance — your pages clearly explain what services you offer, who you serve, and where you're located, using the language your prospective clients actually type into search.
- Off-site authority — other credible websites (local business directories, professional associations, news outlets, referral partners) link to or mention your firm.
When all three are in reasonable shape, Google has the confidence to rank your firm's pages for queries your ideal clients are already searching. When one is missing — for example, you have great content but no external citations — your rankings will plateau.
It's worth stating what SEO is not: it is not social media marketing, it is not email campaigns, and it is not Google Ads. Those are separate channels with different cost structures and timelines. SEO specifically targets the organic results — the non-advertising listings that most searchers click most of the time.