Percentology Review 2026: Scope, Pricing & How It Compares

Percentology (Bookkeeping for Dentists LLC) is arguably the best-known dental-only bookkeeping service in the US — founded in 2013 by Sona Wegner, a former dental-CPA-firm tax associate, and serving 100+ dental practices with QuickBooks Online bookkeeping plus a proprietary overhead-benchmarking dashboard. In this review we look at what Percentology does well, where its scope ends, and how it compares with Maxim Liberty for dental practices weighing their options.

Transparency Note: This review is researched and published by Maxim Liberty. While we are a direct competitor, we have utilized objective pricing data, BBB ratings, and verified customer reviews to provide a fair market analysis of the best bookkeeping services available. Every third-party fact on this page is sourced and dated, and quotes are verbatim and linked. Ratings, pricing and company details change over time, so please check the linked source before relying on any figure. If you find an inaccuracy, tell us and we will correct it.

At a Glance: Percentology vs. Maxim Liberty

What Percentology Does Well

Credit where due: Percentology is a serious specialist. Their client testimonials are consistently excellent, their bookkeepers are US-based degreed accountants, and their standout feature is real — a benchmarking dashboard that reorganizes your P&L into dental overhead categories and compares your percentages against their client base and industry averages. For a dentist whose main frustration is “I don’t know how my overhead compares,” that is a genuinely useful product, and their dental-specific chart of accounts is well designed.

Where the Scope Ends

Percentology is deliberately narrow, and says so plainly on its own site. It is record-keeping only: the site does not advertise payroll, bill pay, or 1099 services, and states it does not offer tax preparation (as of Aug 2026) — and no reconciliation of deposits against your practice management system’s receivables, which they suggest your office manager handle in-house daily. Bookkeeping is updated weekly, with a monthly email of questions, and onboarding runs around six weeks by their own estimate. Pricing is not published; you schedule a call to get a quote. QuickBooks Online is the platform they work in (their site says bookkeeping is done “primarily using QuickBooks Online”).

None of that makes it a bad service — it makes it a specific one. If your practice wants one team to also run payroll, manage AP, file 1099s, tie the books to PMS production reports, or simply update the books daily rather than weekly, you are outside Percentology’s scope by design.

Pricing: Quote-Only vs. Published Rates

Percentology asks you to schedule a call for pricing. Maxim Liberty publishes its rates: $15/hour for businesses, which for a typical single-location practice works out to roughly $75–$300 per month depending on transaction volume — with supervisor review included, catch-up work included in every plan, and a 100% money-back guarantee on 1st retainer, refundable on the unused balance so you can evaluate the work on your real books with little to no risk. See full pricing or our dental bookkeeping service.

Which Should a Dental Practice Choose?

Choose Percentology if your books are simple, you live in QuickBooks Online, your office manager handles payroll and deposits in-house, and overhead benchmarking against other practices is the feature you care about most.

Choose Maxim Liberty if you want daily-capable bookkeeping at a published price, PMS-report-to-deposit reconciliation, payroll/AP/1099 support under one roof, software freedom beyond QBO, and faster onboarding — from a team doing this since 2005.

Frequently Asked Questions