A client retainer is not your money until you earn it. That single idea drives every part of how retainers should be tracked in your books.

When a client pays a retainer, those funds go into your IOLTA (Interest on Lawyer Trust Account), not your operating account. In your accounting software, this deposit gets recorded as a liability because you owe those funds back to the client until you perform work against them. Think of it like a gift card someone bought at a store. The store holds the money and only recognizes revenue when the card gets used.

Each client’s retainer balance must be tracked individually. You cannot pool client funds together and treat the IOLTA balance as one lump number. Your books need to show exactly how much of that trust balance belongs to each client at any point in time. In QuickBooks, you can do this with sub-accounts under the IOLTA liability account (one per client) or by using the customer field on every transaction that touches the trust account.

The process for moving funds from trust to operating follows a specific order. First, you perform work on the client’s matter. Then you generate a billing statement showing the time and costs incurred. Then you transfer the earned amount from the IOLTA account to your firm’s operating checking account. Finally, you record that transfer in your books by reducing the client’s trust liability and recognizing the revenue. Doing this monthly keeps everything clean and current.

Never transfer funds before billing. And never transfer more than what’s been billed. These aren’t just bookkeeping best practices. The Wisconsin Supreme Court’s rules on trust accounts are strict, and commingling or premature withdrawal of client funds is one of the fastest paths to a bar complaint.

Reconcile the IOLTA account monthly, just like your operating account. But go a step further and reconcile the individual client balances against the total trust balance. The sum of every client’s sub-ledger should equal the bank balance exactly. If it doesn’t, something was recorded incorrectly and you need to find it before it compounds.

When a client’s retainer runs low, that’s your signal to request a replenishment. When a matter closes with unused funds remaining, those funds get returned to the client promptly. Both of these events need to be reflected in your books right away.

For firms handling multiple matters per client, track retainers at the matter level, not just the client level. A client might have separate retainers for a business formation and a contract dispute. Lumping them together creates confusion about which matter has available funds.

If your firm’s trust accounting has gotten messy or you’re not confident the balances are right, that’s worth fixing immediately. Rock Steady Bookkeeping provides professional services bookkeeping with experience in trust account structures for law firms. Getting IOLTA tracking set up correctly from the start, or cleaned up if it’s fallen behind, removes a real source of risk from your practice.

The firms that handle this well tend to have a consistent monthly routine. Bill clients, transfer earned fees, reconcile the trust account, and review individual balances. It takes discipline but it’s not complicated once the system is in place. If you’re looking for Wisconsin small business bookkeeping services that understand how law firm finances work, that monthly rhythm is exactly the kind of thing a good bookkeeper maintains for you.