Intern Insider
    Job BoardResume BuilderFeaturesBlogUniversities
    Sign InStart for free
    Job BoardResume BuilderFeaturesBlogUniversities
    Internships/Mariner

    Intern, Tax

    Mariner · United States

    Summer 2026On-sitePaidPosted 2025-08-19
    Share on XLinkedIn

    Create a free account to unlock the application link.

    Apply Now

    About the role#

    As a Tax Intern at Mariner, you will gain hands-on experience in personal, fiduciary, S-Corporation, partnership, private foundation, and gift tax returns. This role involves working 30–40 hours per week from late January to mid-April 2026, providing you with foundational knowledge of tax planning and compliance through real client work.

    What you'll do#

    • Work in coordination with Wealth teams to service clients regarding integrated tax and wealth planning.
    • Assist in the preparation of tax returns, income tax projections, estimated tax vouchers, and extension forms.
    • Collaborate with Tax professionals on special projects and work that directly supports clients.

    What you'll need#

    • Pursuing a bachelor’s or master’s degree in Accounting, Finance, Business Administration, or a related field with an expected graduation date within 30 months of January 2026.
    • Demonstrated leadership experience through work or extracurricular activities.
    • Strong aptitude for working with numbers and performing detailed calculations accurately.
    • Basic knowledge of accounting or tax principles.
    • Strong organizational and time management skills to meet multiple deadlines.
    • Ability to work well in a team environment and maintain confidentiality regarding sensitive client information.
    • Proficiency in Microsoft Excel and Word.

    Location & details#

    • Location: United States (On-site).
    • Term: Spring 2026 (late January to mid-April).
    • Compensation: $26 per hour.
    • Status: Paid, full-time internship.
    • Eligibility: Must be authorized to work in the U.S. without sponsorship.
    Relevant fields:AccountingFinanceBusiness Administration

    About Mariner

    Mariner was a privately held IT services and consulting firm headquartered in Charlotte, North Carolina, that operated from 1998 to 2022. With a team of 11 to 50 employees, the company provided technology solutions to clients across North America in sectors including finance, healthcare, manufacturing, and energy. Its work evolved from custom business application development to data analytics and business intelligence, eventually focusing on AI-based computer vision products for manufacturing quality control. The firm specialized in areas such as machine learning, predictive analytics, and nondestructive testing.

    All Mariner internships

    Why students use Intern Insider

    We surface fresh internships early, then hand you the tools to actually land them — so you spend less time hunting and more time interviewing.

    • Postings days before LinkedIn
    • AI resume + cover letter tools
    • Apply from one place
    Create a free account

    More open roles at Mariner

    • Intern, Financial PlanningUnited States
    • Business Development InternUnited States
    • Intern, Practice ManagementUnited States
    • Intern, Tax Summer 2026United States
    • Intern, InstitutionalUnited States

    Know someone who'd be a fit? Pass it along.

    Share on XLinkedIn

    On this page

    • About the role
    • What you'll do
    • What you'll need
    • Location & details

    Land internships at top companies

    140,000+ students have launched their careers with Intern Insider.

    Time Saver
    “I didn't realize how much time I was wasting until I tried Intern Insider. Instead of scrolling for hours, I just apply directly through the platform.”
    Jemma V., Private Wealth Intern

    Jemma V.

    Private Wealth Intern

    BMO
    Time Saver
    “Intern insider has changed the way I apply to jobs. It saves me so much time with applications and curating different resumes for different positions.”
    Samantha C., Mechanical Engineering Student

    Samantha C.

    Mechanical Engineering Student

    University of Waterloo

    For students

    Looking for an internship right now?

    We watch the career pages of 200,000+ companies and post new internships the moment they go live. Set your preferences once and get matched with roles that fit.

    Start for free

    For universities

    Supporting students at scale?

    We work with co-op and career teams across Canada and United States on job development and employer outreach. Happy to show you how it works.

    See how we partner with schools
    Intern Insider

    We land you internships.

    Products

    • Job board
    • Internship collections
    • Newsletter
    • University partnerships

    Resources

    • Blog
    • Internship guides
    • Privacy policy
    • Terms

    Company

    • About
    • Contact
    • Careers

    © 2026 Intern Insider Technologies Inc. All rights reserved.