CSG’s Taxation department offers a broad range of services and give peace of mind by expertly handling all compliance requirements and providing comprehensive tax advisory services.

Our expertise empowers you to make confident decisions, knowing your tax obligations are being managed with care.

Get an overview of our core Taxation services.

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The Taxation department at CSG combines industry experience with technical expertise to deliver practical, tax-efficient solutions tailored to your unique needs. We are dedicated to ensuring all compliance requirements are meticulously met, allowing you to focus on your business with confidence in your tax position.

Our broad and diverse client base means we support everyone from sole traders to large corporations, as well as private clients managing intergenerational wealth transfers. Our expertise covers corporate structuring and reorganisations, trusts and estates, succession planning, Revenue disputes, and R&D tax credits.

With senior team involvement throughout, we maintain the highest standard of service and attention to detail.

We provide a wide range of services

Our Taxation Services

Our tax team works with businesses, individuals, and families to manage compliance and plan strategically.
From annual filings to complex restructuring and intergenerational planning,
we offer tailored solutions that keep you compliant today and prepared for tomorrow.

Corporate tax
compliance

We manage all aspects of corporate tax compliance - from calculating liabilities to preparing and filing returns - ensuring your business meets its obligations accurately and on time.

R&D tax
credit claims

Our team supports companies in identifying qualifying activities, preparing claims, and liaising with Revenue to maximise available R&D tax reliefs efficiently and with confidence.

Capital gains tax compliance

We provide guidance on disposals, reliefs, and reporting obligations to help you manage capital gains tax effectively, avoid unexpected liabilities, and structure transactions tax-efficiently.

Capital acquisitions tax (inheritance and gifts) compliance

We assist individuals and families in meeting compliance obligations for CAT, ensuring transfers are structured correctly and reliefs are applied where available to minimise exposure.

Estate and Trust tax compliance

Our team provides full support on trust and estate tax matters, including registration, ongoing compliance, and reporting - ensuring obligations are met with accuracy and care.

Estate and Succession Planning

We help families plan for the future, advising on tax-efficient ways to transfer wealth, protect assets, and manage obligations across generations.

Tax due diligence
(buy side/sell-side)

We conduct tax due diligence for buyers and sellers to identify potential risks, assess liabilities, and provide clear insights to support informed decision-making during transactions.

Revenue risk
review support

If your business faces a Revenue risk review or audit, we provide experienced guidance, manage interactions with Revenue, and help you navigate the process confidently and efficiently.

See all Services

Discover how we can support your business.

What make CSG's approach different

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Proactive, hands-on leadership

At CSG, you’ll always work directly with experienced people who know your business.
Our partners and senior team stay closely involved from the start - leading your work,
not just signing it off. We believe the best results come from working alongside you,
not at a distance.

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Focused on what really matters

Every business is different, so we take the time to understand yours. We work with you
to plan carefully, identify risks early, and shape our approach around what matters
most to your organisation. It’s about tackling the real issues directly - so they’re
resolved quickly, clearly, and with lasting impact.

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Clear, open communication

Good communication makes everything else work better. We keep conversations
straightforward, consistent, and tailored to how your team works best. Whether that’s
regular onsite time or flexible remote updates, we make sure information flows
smoothly - so there are no surprises, just steady progress.

Learn more

Get in Touch

Reach out to  tax partners Laura Dillon and Damian Clifford to see how CSG can assist you in any tax related matters.

Contact Our Team
Start your career with CSG today!

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Testimonials

What our clients say...

“Working with CSG has brought clarity, structure and peace of mind to how we manage payroll, tax returns and compliance. Their expertise and responsiveness have made a real difference - saving us time and allowing us to focus on running our school. The team is always professional, knowledgeable and detail-oriented.

They explain complex matters in simple terms, and their support gives us the confidence that everything is being handled correctly. We’re so grateful for their continued guidance and look forward to working together as our business grows.”

Young business man talking on phone
Rosemarie McGrath

School Manager, Benin Casa Montessori

What our clients say...

“In Assess Ireland we work with CSG as our trusted partner for all our Audit, Taxation, Corporate Finance and Advisory needs. Their commitment, professionalism and deep understanding of our business have made CSG a partner that adds real value. We look forward to continuing our very successful partnership with CSG as we continue to grow our business.”

Young business man talking on phone
Padraig O’Sullivan

Finance Manager, Assess Ireland

What our clients say...

“Our relationship with CSG began following their acquisition of Philip Manzor’s practice. The transition was seamless, and we’ve continued working with the same trusted team ever since. CSG supports us with business accounts, payroll and personal finances. Their guidance has streamlined our operations and given us more clarity in planning for upcoming tax obligations.

The team’s professionalism is outstanding - from the welcoming front-of-house staff to the advisors at the top level. The advice is always sound, the atmosphere approachable and the team consistently available when we need them. Would we recommend CSG? Absolutely without hesitation.”

Young business man talking on phone
Gerrard O’Sullivan

Director & Co‑Owner, The Castle Bar (A & G O’Sullivan Ltd)

What our clients say...

“We have engaged CSG for audit, tax, and advisory services over the past four years. Initially, we were drawn to their competitive pricing and deep expertise, and they have consistently exceeded our expectations.
Their independent verification of our financial processes has been invaluable to our stakeholders, ensuring compliance with all statutory obligations.

The team provides excellent advice on financial and taxation matters with professionalism and efficiency.
What we value most is their accessibility and clear, straightforward guidance. We’ve truly enjoyed working with CSG and look forward to continuing this professional relationship. I highly recommend them to others.”

Young business man talking on phone
Eugene Maher

CEO, Shannonferry Group Limited

What our clients say...

“I engaged CSG in 2005 for my tax returns following a word-of-mouth recommendation, and I have been a satisfied client ever since. Working primarily with David and Dan, I rely on CSG for both my personal and tax returns.
Their service is consistently excellent and timely, providing year-round support and advice whenever I have queries. The value for money is outstanding - couldn’t be better!
I have confidently recommended CSG to my friends and colleagues.”

Young business man talking on phone
Dr. Kenneth Feeley

Consultant, Histopathology, Kerry Histopathology Services / Bon Secours Hospital Tralee

What our clients say...

“CSG has been a reliable business partner to Clíste Hospitality for the past ten years. Their professionalism, expertise, and attention to detail are what really set them apart.They truly understand our needs and go above and beyond to support our goals. Their team is responsive, proactive, and always a pleasure to work with.
I highly recommend CSG to anyone looking for a dependable and effective business partner.”

Young business man talking on phone
Paul Fitzgerald FCA

CEO, Cliste Hospitality

What our clients say...

“Absolutely brilliant. The people we work with are professional, helpful, and always deliver exceptional results.”

Young business man talking on phone
Matt Walz

Managing Partner, Niedax CMS Limited

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