7 Bookkeeping Habits That Keep Solo Law Firms Out of Trouble at Tax Time
Sam's List Editorial | 2026-07-21
7 Bookkeeping Habits That Keep Solo Law Firms Out of Trouble at Tax Time Solo attorneys are great at practicing law and often terrible at their own books. That is not an insult. It is a time problem. Billable hours pay the bills, so reconciling the trust account and tracking unbilled time slide to the bottom of the list until April, when everything lands at once. The trouble is that law firm bookkeeping has a compliance layer most small businesses never touch. Mishandle client money in a trust account and the risk is not just a bad tax return. It is a bar complaint. Here are seven habits that keep a solo or small firm out of both kinds of trouble. 1. Keep Operating and Trust Money Completely Separate The single most important rule in law firm bookkeeping is that client funds held in trust, often an IOLTA account, are not your money and cannot mix with operating funds. Most state bars follow the principle in ABA Model Rule 1.15: client property stays separate and identifiable. In practice that means a dedicated trust bank account, its own ledger, and never paying a business expense from it. Commingling is one of the fastest ways to draw discipline from your bar, even when the mistake was innocent. 2. Reconcile the Trust Account Every Month, Three Ways A three-way reconciliation matches your trust bank statement, your trust account ledger, and the individual client ledgers, so all three agree to the penny. Do it monthly, not annually. The benefit is that errors surface while they are small and fixable. The catch is that it takes discipline, and if you are behind, the first reconciliation can be painful. That is exactly the point where many solos bring in a bookkeeper who knows legal work. 3. Track Unbilled Time and Work in Progress Revenue you have earned but not billed is invisible on a cash-basis bank balance, which is why so many firm owners are shocked at year-end. Tracking work in progress and unbilled time gives you a real picture of what the practice actually produced. It also smooths tax planning. When you can see earned but uncollected revenue through the year, April stops being a surprise and starts being a number you saw coming. 4. Set Aside Taxes Every Month, Not Every April Solo attorneys usually owe quarterly estimated taxes, and self-employment tax stacks on vetted of income tax. Moving a fixed percentage of every deposit into a separate tax savings account turns a terrifying spring bill into money you already have. There is no reliable right percentage, since it depends on your income and entity, but building the habit matters more than...
