2026 Summer Internship: ROI Audit & Assurance

Deloitte is the biggest professional services Firm in the world and making an impact is more than just what we do: it’s why we’re here. We’re driven to create positive progress for our clients, community, people, and the planet. This sense of purpose inspires us to work to the highest standards, to tackle the challenges that matter.

A summer at Deloitte is more than just an internship—it’s your gateway to the world of business and to Deloitte Ireland’s award-winning graduate programme - Future Leaders Academy. Over your internship you will dive into real-world challenges, gain hands-on experience, and uncover what truly excites and inspires you. Through innovative, impactful projects, you’ll get a taste of what a full-time role at Deloitte feels like, setting the stage for you to become a leader of tomorrow.

Who are we

Deloitte is the world’s largest professional services firm, delivering expertise in Audit & Assurance, Tax & Legal, and Consulting. With a global network of 450,000 professionals globally - including 3,400 in Ireland—we provide world-class solutions. 

How to Apply

You will be asked to confirm which role you are applying to, please select:

• Audit & Assurance ROI

What is Audit & Assurance at Deloitte?

Audit & Assurance is about much more than the numbers. We provide independent challenges and relevant insights so our clients and their stakeholders can make the best decisions about their business.

Whether it’s conducting statutory audits or providing accounting advice on technical issues we provide our clients with key diagnostics and processes to inspire their confidence and trust. Our relentless drive for quality and talent is what enables our engagements to support clients in all different industries and sectors. You will have the opportunity to gain broad exposure to one or more of the following areas: Financial Services Consumer & Technology Business or Advisory services.

What Does an Audit & Assurance Intern Do?

As a member of our dynamic team of 1,000+ Audit & Assurance professionals, you’ll bring your unique background—whether in Commerce, Science, Engineering, or another field—to a role where you’ll work with cutting-edge teams and senior client stakeholders.  

• Collaborate and Innovate: Work alongside innovative audit and assurance teams to deliver high-quality insights and solutions.  
• Analyze and Assure: Use advanced analytical tools to dissect client data, review operations and controls, and address strategic and financial challenges.  
• Provide Insight: Identify key areas for improvement, ensuring the accuracy and reliability of financial statements, and instilling trust in their users.  
• Lead and Grow: Engage in a diverse range of client engagements and take on leadership roles early in your career.  

What we are looking for

• Academic Achievement: On track for, or have achieved, a 2.1 honors degree or higher. 
• Work Eligibility: Legal right to work in the Republic of Ireland. 
• Skillset: Demonstrated numerical fluency, leadership potential, creative problem-solving, and strong communication skills.

Ready to Launch Your Career?

Location: Hybrid roles based in Dublin, Cork, Galway or Limerick.

Important: You can apply to only one summer internship opportunity—choose wisely!

If you believe that you meet most of the criteria above, we encourage you to apply. Deloitte is an equal opportunities employer and will ensure any reasonable accommodations are implemented as part of the recruitment and selection process.

What makes the FLA graduate programme different?

• It focuses on building leadership capability for the future, offering all graduates a permanent contract.
• It is a multi-award-winning graduate programme recognised by gradireland and The Irish Accountancy Awards.
• Rewards and benefits include a market leading professional services salary, immediate access to paid private health insurance and a pension scheme from day one with matching employer contributions.
• Enhanced professional and financial education support is provided through comprehensive study leave and focused learning and development programmes.

Ongoing performance feedback on client assignments drives improved advisory skills.