HVAC Service Invoice

Free Legal Invoice Template in PDF

Billing clients accurately and professionally is one of the most important administrative responsibilities a law practice faces. A well-structured invoice does more than request payment — it documents the value of your work, reinforces client trust, and satisfies professional responsibility obligations imposed by your state bar. Whether you are a solo practitioner, a boutique litigation firm, or a general practice attorney handling a mix of transactional and advisory matters, having a clean, consistent invoice template saves time and projects credibility.

Our free legal invoice template is available in PDF format. It is fully print-ready, renders identically on every device, and requires no account, no subscription, and no software installation. Download it, fill in your matter details, and send it to your client in minutes.

Why PDF Is the Right Format for Legal Invoices

When you send an invoice to a client, you want it to look exactly the way you designed it — not reformatted by a different version of word processing software, not reflowed because the recipient is on a mobile device, and not altered in any way before it reaches the client's accounts payable department. PDF eliminates all of those risks.

Formatting integrity. Every font, margin, table column, and line break appears precisely as intended, regardless of the operating system or device the recipient uses.

Non-editable presentation. A PDF invoice signals professionalism and finality. Clients cannot accidentally (or intentionally) alter figures before forwarding to their accounting department.

Universal compatibility. Every modern smartphone, tablet, laptop, and desktop computer can open a PDF without additional software.

Archiving and compliance. PDF is a widely accepted archival format. Law firms subject to document retention requirements can store PDF invoices alongside other matter records without format-conversion concerns.

Easy printing. Clients who prefer paper records can print a PDF invoice at exact scale without cropping, scaling errors, or missing content.

For attorneys who handle a modest volume of invoices each month, a PDF template is an efficient, zero-cost solution. For firms with higher billing volume, the template can serve as a design reference when configuring legal billing software.

Sample

HENDERSON & CROSS LLP

499 Seventh Avenue, Suite 1200 | New York, NY 10018

Phone: (212) 555-0190 | Fax: (212) 555-0191

Email: billing@hendersoncross.com | Bar No. NY-0044821

INVOICE

Invoice No.: HC-2026-0412

Invoice Date: April 12, 2026

Due Date: May 12, 2026

Matter: Hargrove Industries, Inc. v. Meridian Supply Co. — Commercial Contract Dispute

Billed To:

Hargrove Industries, Inc.

Attn: James D. Hargrove, CEO

88 Warehouse Blvd., Suite 300

Buffalo, NY 14202

Subtotal (Fees): $5,565.50

Disbursements: Court filing fee $350.00 | Courier $45.00

Total Disbursements: $395.00

Invoice Total: $5,960.50

Retainer Applied: ($2,500.00)

Balance Due: $3,460.50

Payment due within 30 days. Overdue balances accrue interest at 1.5% per month. Please reference Invoice No. HC-2026-0412 with your payment.

What to Include in a Legal Invoice

A complete, well-organized legal invoice protects you and your client. Below are the essential fields every law firm invoice should contain.

1. Firm Identification

Include the full legal name of your firm (or your name as a sole practitioner), your office address, phone number, email address, website, and your state bar number or registration number. This establishes your identity unambiguously and satisfies professional responsibility requirements in most jurisdictions.

2. Client and Matter Information

Identify the client by their full legal name — not just a nickname or company abbreviation. For business clients, include the legal entity name (LLC, Inc., etc.) and the attention line for the person who handles billing. Include a matter name or matter number so the client can easily match the invoice to their internal records. For firms handling multiple matters for the same client, a matter-specific reference is essential.

3. Invoice Number and Dates

Assign a unique sequential invoice number for internal record-keeping and easy reference when clients make payments or inquire about a bill. Include both the invoice date (the date you issued the invoice) and the payment due date (typically 30 days after the invoice date). Clear dates prevent ambiguity about when payment is expected.

4. Itemized Legal Services

This is the heart of the invoice. For each billable entry, record:

• Date the work was performed
• Timekeeper name or initials (attorney, paralegal, law clerk)
• Detailed description of the work — vague entries like "legal services rendered" are unprofessional and may be disputed; write a clear narrative of what was done
• Hours spent, typically recorded in 0.1-hour increments
• Hourly rate for that timekeeper
• Line-item subtotal (hours × rate)

Clients review invoices carefully, and detailed descriptions reduce disputes and write-off requests. If your engagement involves flat-fee work, list the service and the agreed flat fee in place of the hours-and-rate breakdown.

5. Disbursements and Expenses

List all out-of-pocket costs incurred on the client's behalf as a separate section from fees. Common legal disbursements include court filing fees, process server fees, transcript costs, expert witness deposits, travel expenses, courier and overnight delivery charges, document reproduction, and third-party research database charges. Itemize each expense with a description and amount. Clients expect to reimburse these costs but appreciate transparency about what they are paying for.

6. Subtotals, Taxes, and Invoice Total

Present subtotals for fees and disbursements separately before combining them into the invoice total. Although legal services are generally not subject to sales tax in most U.S. states, confirm whether your jurisdiction imposes tax on legal fees or disbursements. If taxes apply, show the taxable base, applicable rate, and tax amount as separate line items.

7. Retainer and Trust Account Reconciliation

If the client has paid a retainer held in your IOLTA trust account, show the prior trust balance, the amount applied to this invoice, and the remaining trust balance after application. This accounting is required under the professional responsibility rules of most state bars and is fundamental to maintaining client trust. Never apply trust funds without a corresponding invoice or written authorization from the client.

8. Payment Terms and Instructions

State your payment terms explicitly — for example, "Payment due within 30 days of invoice date." Specify accepted payment methods: check (payable to firm name), ACH/wire transfer (include routing and account numbers or a secure payment link), credit card, or online payment portal. If your engagement letter provides for interest on overdue balances, restate the rate on the invoice. Some firms include a remittance slip or reference code to help their accounting department match incoming payments.

9. Attorney-Client Confidentiality Notice

Consider adding a brief confidentiality notice at the bottom of the invoice, particularly when billing through a client's employer or when the invoice may pass through multiple hands. A simple line such as "This document contains attorney-client privileged information and is intended solely for the named recipient" provides an additional layer of protection.

Best Practices for Legal Billing

Beyond the structural elements of the invoice, adopting sound billing habits will improve collections and strengthen client relationships.

Bill regularly. Monthly billing is the standard in most practices. Delayed billing — sending a large invoice months after the work was done — leads to sticker shock, disputes, and delayed payment. Clients are more comfortable paying invoices when the work described is fresh in their memory.

Be specific in your descriptions. "Telephone conference with client re: deposition preparation strategy and review of witness list" is more defensible and more convincing than "Phone call — 0.4 hrs." Specificity demonstrates the value of your time and discourages disputes.

Set expectations in the engagement letter. Your invoice should never surprise the client. A well-drafted engagement letter covers hourly rates, billing frequency, payment terms, retainer requirements, and interest on overdue balances. When clients know what to expect, they pay faster.

Respond promptly to billing inquiries. If a client questions a charge, address it professionally and quickly. A short explanation of what the work entailed often resolves the issue. Prompt responses signal that you take billing seriously and that you stand behind your work.

Keep records. Retain a copy of every invoice you send, along with proof of delivery (email confirmation or certified mail receipt). In the event of a fee dispute or bar complaint, your invoice records are critical documentation.

How to Use This Template

1. Download the PDF template using the button on this page.
2. Open the file in Adobe Acrobat Reader, Preview (Mac), or any PDF editor.
3. Fill in your firm's name, address, bar number, and contact information in the header section.
4. Enter the client's name, matter description, invoice number, and dates.
5. Add your time entries and disbursements in the itemized table.
6. Calculate subtotals, apply any retainer balance, and confirm the balance due.
7. Save a copy for your records and email the completed PDF to your client.

The template is designed to be clean, legible, and professional — suitable for sending directly to clients or attaching to a cover letter on your firm's letterhead.