Commercial Assurance Intern - 2026

Join our Team!

We work in an environment where everyone’s voice is heard

We are one of the largest regional accounting firms headquartered in Orange County, California. We are accountants providing solid guidance, support & solutions to businesses, governments, and non-profits. Our outstanding employees are crucial to our unique, diverse culture and talent development, as well as our ability to attract clients successfully. At LSL, you will discover an atmosphere that motivates and encourages you to succeed personally and professionally.

Commercial Assurance Intern

What You Will Be Doing

As an LSL Intern, you will have the opportunity to work alongside all professional levels that will provide you with a real-world understanding of public accounting. You will have the opportunity to learn the LSL firm culture and values and at the same time gain valuable knowledge and experience at a top regional accounting firm in Orange County. Our Commercial Assurance Interns will assist the Assurance and Advisory Department during the busy season starting January 2026.

What Is In It For You

• Challenging work
• Flexible work schedule based on your class schedule, with a minimum of 20 hours per week; you can work in blocks of at least 4 hours, and if your school schedule allows, you can even work up to 40 hours per week.
• Positive work environment
• Mentor guidance
• Networking
• Professional training, you will gain experience with LSL’s tax process which help you build your resume with relevant work experience
• Similar responsibilities as our first year, full-time staff
  
  

During Your Internship, You Will

• Assist with audit, review, and compilation procedures under the guidance of senior team members.
• Help analyze client financial information and prepare supporting workpapers.
• Participate in testing internal controls and documenting findings through inquiry and observation.
• Support the team in performing year-end and interim audit procedures, such as inventory counts and reconciliations.
• Work closely with in-charge auditors to prepare concise, well-organized documentation that clearly communicates your work.
• Learn how to apply basic audit and accounting principles (FASB, GAAP, SSARS/GAAS) in a real-world setting.
• Gain exposure to audit software and technology tools used to improve efficiency and quality.
• Communicate progress and ask questions regularly — collaboration and curiosity are key!
• Develop professional skills in teamwork, communication, and problem solving.
  
  

Education Level: Junior or Senior level currently pursuing a Bachelor’s Degree in accounting, finance, or economics

Requirements To Be Successful

• Minimum 3.0 GPA preferred
• Excellent verbal and written communication skills with the ability to read, write, speak, and interpret rules, procedures, and routine correspondence in English
• Organized, with an ability to prioritize time-sensitive assignments
• Proficient with Microsoft Suite (i.e. Word, Excel, PowerPoint, Outlook)
• Well-rounded knowledge of accounting principles
• Demonstrated leadership skills
• Eligibility to work in the U.S. is required
  
  

Work Authorization

• Must be authorized to work in the United States permanently without the requirement of sponsorship at any point in the future.