Taxation Services

Expert tax advisory & compliance services in Ireland that drives efficiency & savings

We work closely with business owners, in-house finance teams, and international groups to provide clear, practical tax advice that supports your goals. Or, avail of our fully outsourced tax compliance service, where we complete every aspect of your taxation, including corporation tax, VAT, PAYE, Employer PRSI, RCT, R&D, and more.

Our clients include Directors, SMEs, owner-managed businesses, and Irish subsidiaries of multinational groups. We work across various sectors and have clients in many different industries, including property and construction, eCommerce and retail, pharmaceutical, manufacturing, service-based businesses, and professional service firms.

Led by our experienced tax advisors and senior leadership team, we provide a proactive service focused on responsiveness, laser focus on detail, and accessible support.

Practical tax support, tailored to your business

Corporate Tax Services

Personal Tax Services

VAT & Indirect Taxes

International & Advisory Tax

Smarter tax support for growing businesses

Effective tax management helps you stay compliant while improving financial outcomes. With the right advice, you can plan ahead and ultimately, reduce your overall tax liability.

Key benefits of professional tax services

Experts in R&D Tax Efficiency

Over the past number of years, we’ve seen a growing demand for R&D tax support and an increasing appetite from Irish government to support firms that are investing in research and development. This is good news on both fronts as R&D (whether that be lab or desk-based) can really advance your offering as a company, as well as enabling you to maximise tax credits. 

Underused in many respects, we ensure the companies we work with avail of the maximum credits available under R&D, where applicable.

CAS Accountants SMEs & International Businesses

Who We Work With

Supporting businesses across Ireland and internationally.

Our tax clients include

We tailor our tax services to your structure, sector, and growth plans.

What You Can Expect with a CAS-Led Tax Service

We take time to understand your business and tax position. Advice is clear, organised, accessible, and tailored to your needs. You have a defined ‘no surprises’ plan.

Your tax matters are handled by experienced advisors. You have rapid access to senior support when needed.

We keep things simple and easy to understand. You are kept informed of changes and obligations. No technical jargon, just practical guidance.

All filings are completed accurately and on time. Revenue deadlines are managed proactively. You stay on track without pressure.

Staying ahead of regulatory compliance and revenue changes on your behalf. Your tax affairs are aligned with Irish regulations. Documentation and filings are handled correctly.

Why Clients Choose CAS for their Irish Company Tax?

A more proactive approach to tax

What Our Clients Say

Looking for clear, practical tax advice?

Let’s make your tax position more efficient, structured, and easier to manage.

Meet Your Tax Expert

Associate Director

How CAS Advisory supports O’Hare Technical Production (OHareTEP)

  • Outsourced Accountancy
  • Taxation
  • Payroll
  • Business Advisory
  • Scale-up support

What do O’HareTEP value most about the team at CAS Advisory?

  • Knowledge and expertise.
  • Ability to pick up the phone and get quick, yet expert advice.
  • Organised, no surprises approach.
  • Strategic mindset & support with sustainable growth.
  • Their understanding of a growing services-based business.
  • VAT experts across various jurisdictions – valuable in our business.
“The team at CAS are a huge support to O’HareTEP. We’ve been steadily growing over the past few years and that’s partially down to my ability to focus on business growth, while CAS Advisory looks after all my accounts, tax, payroll, and audit. They’ve been particularly valuable in helping me navigate the purchase of equipment from various locations across Europe – they’re genuine experts. I’d highly recommend CAS.”
Gavin O’Hare -Owner and MD
O’Hare TEP

Growth aligned with a thriving industry

Since its establishment in Ireland, Zeidler Group has grown steadily to a significant team locally, expanding with the growth of the funds and asset management industry in Ireland. 

What sets them apart is their technology-driven legal approach and expansive network, which allows them to remain highly responsive to client and industry needs while leveraging longstanding expertise in cross-border distribution and licensing.

What do Zeidler Group (Ireland) value most about the team at CAS Advisory?

  • Partnership approach.
  • Direct access to senior management.
  • Hands-on, local Irish advice.
  • Clear, reliable service with no surprises.
  • Invaluable support during a restructure.
“We’ve been with CAS Advisory for over ten years now. Their reliable, hands-on approach is exactly what we need on the ground in Ireland. We know the services they provide to us are in hand, with no surprises. And if we need to seek expert advice, we can get it quickly through their senior management. We’ve grown (and continue to grow) together, and I can’t recommend them enough.”
Maximilian Harper -COO and CDO
Zeidler Group

Francis Mc Carron

Director

Francis is a Director at CAS Advisory, where he leads the firm’s Audit department. He manages a team of qualified accountants and trainees, overseeing statutory audits and ensuring clients receive a responsive, high-quality service.

He works with businesses across a range of sectors, including retail and e-Commerce, property management and healthcare, providing support with financial statement preparation, taxation and payroll.

Known for his technical expertise and plain-speaking approach, he helps clients navigate complex problems and stay ahead of their compliance obligations.

Originally from Co. Fermanagh, Francis is a passionate supporter of Liverpool FC and the Philadelphia Eagles.

Touch Case Studies Supporting one of Ireland’s largest furniture retailers with business advisory, audit, and CRO compliance

About Bargaintown

Bargaintown is one of Ireland’s largest furniture retailers, with 5 stores in Dublin and a thriving online business. 100% family owned, Bargaintown has been in business over 50 years, providing cost-effective furniture and carpets for the rental and domestic markets. Known for being a ‘one-stop-shop’ in beds, mattresses, and furniture, Bargaintown offers full outfitting, installation, and assembly, as well as supply.

How CAS Advisory supports Bargaintown

  • Audit
  • Company Secretarial
  • Financial Strategy
  • Previously supported the secondment of an on-site accounts assistant.
  • Businesses with complex or cross-border tax requirements.

What do Bargaintown value most about the team at CAS Advisory?

  • Access to expertise.
  • Rapid response times.
  • Organised, ‘no surprises’ approach.
  • Strategic mindset & support.
  • Ability to deal with the complex (5 companies, mix of E-Commerce & Retail + Property Co.)
  • Advice during business change.
“With our previous firm, everything last minute. Since switching to CAS Advisory, we’ve gained a partner — responsive, knowledgeable, and always one step ahead. They understand our sector, offer solid advice, and deliver a hassle-free audit across all our companies. Stephen, Corina, and the who team there are responsive, flexible, and great to deal with- I’d be happy to recommend CAS!”
Michael Murphy - Financial Controller
Bargaintown
“With our previous firm, everything last minute. Since switching to CAS Advisory, we’ve gained a partner — responsive, knowledgeable, and always one step ahead. They understand our sector, offer solid advice, and deliver a hassle-free audit across all our companies. Stephen, Corina, and the who team there are responsive, flexible, and great to deal with- I’d be happy to recommend CAS!”
Michael Murphy - Financial Controller
Bargaintown

Contact Us

Fill out the form below, and we will be in touch shortly.

Privacy Overview

This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.