How to Set Up a Legal Chart of Accounts: A 2026 Foundation Guide for Law Firms (Trust, Operating, and Cost Accounts Done Right)

A generic QuickBooks chart of accounts wasn't built for trust liabilities, client cost advances, or contingency revenue — and retrofitting one is where most law firm bookkeeping problems begin. This 2026 guide walks through building a legal-specific chart of accounts from the ground up, with the trust, operating, and cost structures that keep you compliant and your reports meaningful.