Summer Intern, Tax

Why Work for Frontier Airlines?

At Frontier, we believe the skies should be for everyone. We deliver on this promise through our commitment to Low Fares Done Right. This is more than our tagline — it’s our driving philosophy. Every member of Team Frontier has an important role to play in bringing this vision to life. Our successful business model allows travelers to take advantage of our fast-growing route network while our bundled and unbundled pricing options allow our customers to personalize their travel experience and only pay for the services they need – saving them money along the way.

Low Fares Done Right is our mission and we strive to bring it to life every day. Our ‘Done Right’ promise means delivering not only affordable prices, but making travel
friendly
and easy for our customers. To do this, we put a great deal of
care
into every decision and action we take. We must be efficient with the use of our resources and make smart decisions about how we run our business. We must also innovate and be
pioneers — we’re not afraid to try new things. While our business requires us to fly high in the air, we also consider ourselves
down-to-earth
in our approach, creating a warm and friendly experience that truly demonstrates Rocky Mountain Hospitality.

Frontier Airlines is committed to offering ‘Low Fares Done Right’ to more than 100 destinations and growing in the United States, Canada, Dominican Republic and Mexico on more than 350 daily flights. Headquartered in Denver, Frontier’s hard‑working aviation professionals pride themselves in delivering the company’s signature Low Fares Done Right service to customers. Frontier Airlines is the proud recipient of the Federal Aviation Administration’s 2018 Diamond Award for maintenance excellence and was recently named the industry’s most fuel‑efficient airline by The International Council on Clean Transportation (ICCT) as a result of superior technology and operational efficiencies.

The Tax Intern will assist Frontier’s Tax team with indirect and direct tax compliance obligations. The Intern will also assist with tax research and with monthly‑end, quarter‑end and year‑end closings. The intern will gain experience throughout the Tax team through assigned project work and on the job training. This internship is for Summer 2026 6/1/2026 - 8/28/2026 based in Denver, CO.

• Compilation of information and data for various tax returns, including income, property, excise, fuel and sales/use taxes.
• Compilation of information for the financial statement requirements of the tax department
• Maintain the tax department’s calendar
• Assist with federal and state audit information requests
• Assist with monthly journal entry and tax account reconciliation processes
• Preparation of sales and use tax, excise tax and fuel tax return work papers
• Processing of tax returns and tax payments
• Reconciliation of tax notices with existing records
• Tax research projects as required
• Perform other tax compliance and administrative duties as assigned by management

• Undergraduate sophomore‑level students or above working towards a Bachelor’s Degree in Accounting (concentration in Tax a plus) OR
• Graduate students working towards a Master’s Degree in Taxation or Business Administration (concentration in Accounting of Finance)
• Prior work experience, including a prior co‑op internship in accounting or tax is preferred, but not mandatory
• Experience in Microsoft Excel and Word

• Detail‑oriented and possess good organizational skills
• Strong communication skills
• Demonstrates competency in problem‑solving skills
• Demonstrates interest in learning tax
• Demonstrates values of self‑motivation, integrity, accountability, teamwork and innovation

Standard office equipment, including PC, copier, fax machine, printer

Typical office environment, adequately heated and cooled

Generally, not required.

Freshman

19.50

Sophomore

20.50

Junior

21.50

Senior

22.25

Graduate Program

24.25

Please note: this posting has a closing date of on or before 4/9/2026, midnight MT.