Before discussing numbers, it helps to understand what the spend is covering. SEO for a bookkeeping firm is not a single deliverable — it is a set of ongoing activities that, compounded over months, move your firm into positions where prospective clients find you without you paying per click.
At a high level, the monthly fee covers three categories of work:
- Technical and on-page optimization: Making sure your site loads quickly, is structured so Google can crawl it cleanly, and has individual pages that align to the terms your prospects actually search.
- Content development: Publishing pages and articles that answer the questions bookkeeping clients ask before hiring — service pages, local landing pages, and educational content that builds topical authority.
- Authority building: Earning mentions, links, and citations from credible third-party sources that signal to Google your firm is trusted in your market.
Lower-priced engagements tend to do less of each. A $600/month retainer likely means one or two pieces of content per month, minimal link-building, and reactive technical work. A $2,500/month engagement typically means a dedicated content calendar, proactive link outreach, and ongoing technical auditing.
Neither is wrong in isolation — the question is whether the scope matches what your market and website actually require. A bookkeeping firm in a mid-sized city with an already-functional website has different needs than one launching in a competitive metro with a five-page site.