What's the ROI of investing in client retention vs. new client acquisition?

Client retention delivers significantly higher ROI because acquiring new clients costs 5-25x more than retaining existing ones (futurefirm.co/accounting-client-retention-strategies-growing-firms/), and existing clients are more likely to purchase additional services. Top accounting firms achieve 90-96% retention rates (cpajournal.com/2024/01/23/state-of-the-profession-3/), creating predictable revenue and reducing the constant pressure to find new clients.