GET IN TOUCH

TODAY

Taxation Services

Expert tax advisory and compliance services in Ireland that drives efficiency and 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.

Arrange a meeting with a Tax Specialist Today

Practical tax support, tailored to your business

Corporate Tax Services

  • Corporation tax compliance and filings.
  • Tax planning to improve. efficiency and reduce liabilities.
  • Advice on group structures and group transactions.
  • Revenue audit assistance.

Personal Tax Services

  • Income tax returns and planning.
  • Director and shareholder tax advice.
  • Capital gains tax and capital acquisitions tax guidance.

VAT & Indirect Taxes

  • VAT registration and compliance.
  • VAT returns and advisory.
  • Cross-border VAT and EU trading support.

International & Advisory Tax

  • Tax support for companies expanding into Ireland.
  • Transfer pricing and cross-border structuring.
  • Ongoing tax advisory aligned with your business strategy.

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

  • Accurate and timely tax filings.
  • Improved tax efficiency and cash flow.
  • Reduced risk of penalties or Revenue queries.
  • Clear guidance on complex tax matters.
  • Support with business growth and structuring decisions.
  • Confidence that your tax position is fully compliant.
  • Structured, experienced support available if you do end up in a Revenue Audit.
  • Experience in Revenue engagement and issue resolution.

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.

Who We Work With

Supporting businesses across Ireland and internationally.

Our tax clients include

  • SMEs and owner-managed businesses.
  • Growing and scaling companies.
  • Irish subsidiaries of international groups.
  • High-net-worth individuals and directors.
  • Businesses with complex or cross-border tax requirements.

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.

See our Team in Action

Why Clients Choose CAS for their Irish Company Tax?

  • A responsive and approachable team.
  • Strong focus on practical, commercial advice.
  • Direct access to experienced advisors.
  • Support across both compliance and planning.
  • Experience with Irish companies, international groups operating in Ireland, and cross-border taxation.
  • Efficient delivery with minimal disruption.

A more proactive approach to tax

  • Tax support for companies expanding into Ireland.
  • Transfer pricing and cross-border structuring.
  • Ongoing tax advisory aligned with your business strategy.

What Our Clients Say

“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 & CDO,Ceo & CDO | Zeidler Group
-Maximilian Harper, COO & CDO,
“Stephen and the team at CAS Advisory have played a pivotal role in the success of Clarity VP. Their strategic approach and consistently valuable advice have enabled us to sustain continued growth since launching in 2013. The team at CAS is truly outstanding and I look forward to continuing to work with them well into the future!”
Valerie O‘KeefeCeo | Clarity VP
Valerie O‘Keefe
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 MurphyFinancial Controller | Bargaintown
Michael Murphy
“This is my second scale-up with CAS Advisory. CAS are more than accountants – they’re a sounding board and a strategic partner. I value being able to pick up the phone, get practical advice, and know that they understand our long-term vision. I know they are the right partner for us as we enter this exciting next phase of expansion into the UK.”
Chris RooneyHead of Marketing and Communications | Dabbledoo
Chris Rooney
“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’HareOwner & MD | O’HareTEP
Gavin O’Hare

Looking for clear, practical tax advice?

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

Speak to Our Audit Team

Meet Your Tax Expert

Ronan Mulvihill

Associate Director

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.

Powered by  GDPR Cookie Compliance
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.