Free Lawyer Invoice Template & Generator

Lawyer Invoicing by the Numbers

Solo attorneys and small law firms bill against the clock, so a clear invoice that itemizes hours, retainer draws, and disbursements is how legal work actually gets paid. Late payment is a real risk: 56% of US small businesses are owed money from unpaid invoices, averaging about $17,500 each, and 47% report a portion of those invoices overdue by more than 30 days, according to the Intuit QuickBooks 2025 US Small Business Late Payments Report. Cash flow follows closely, with 51% of small employer firms citing uneven cash flow as a financial challenge, according to the Federal Reserve's 2025 Report on Employer Firms. Offering online payment options helps; invoices that do get paid up to twice as fast, according to Xero (2024).

What every lawyer invoice needs

Include the client and matter name, the dates of service, and itemized time entries with a brief description of each task and the hours billed — clients and courts expect detailed narratives, not lump sums. Keep professional fees separate from advanced costs like filing and expert fees. Note your hourly rate, any retainer applied against the balance, and the payment terms and trust-account handling required by your jurisdiction.

Trust accounts, retainers, and billing ethics

Unearned retainers and advances generally must sit in a client trust (IOLTA) account and only move to your operating account as you earn the fees or incur costs — your invoice should show the retainer balance and amounts drawn down. Time should be billed in tenth-of-an-hour increments with clear task descriptions. Follow your state bar's rules on reasonable fees and billing disclosures when you set up each invoice.

How do I write a legal invoice for billable hours?

Name the client and matter, then list each task as a dated line item with a short description and the time billed, usually in tenth-of-an-hour increments. Multiply hours by your rate, add advanced costs on separate lines, and apply any retainer to show the balance due. Detailed narratives help clients understand the work and satisfy fee-review standards.

Do lawyers charge sales tax on legal services?

Most U.S. states do not impose sales tax on legal services, but a small number tax certain professional or specified services. Reimbursed costs you advanced, like filing fees, are typically pass-through and not taxable. Confirm the rules with your state's department of revenue and your state bar, and only add a tax line if it genuinely applies.

How should retainer funds appear on a lawyer's invoice?

Show the starting trust or retainer balance, the fees and costs earned this period, and the remaining balance after the draw. Unearned retainer funds belong in a client trust (IOLTA) account and move to your operating account only as you earn them. This transparency keeps you compliant with state bar trust-accounting rules and prevents fee disputes.