Chartered Accountants & Tax Advisors based in Warrenpoint, Northern Ireland

The firm is a full-service accountancy firm dealing mainly with small businesses and individuals. The firm specialises in the taxation of, and accounting for, cryptocurrency and cryptoassets. Adrian is also a Certified Customs Advisor.

The firm is also highly experienced in cross-border taxation and accounting across the island of Ireland, as well as other international tax matters.

We’ve Reopened Our Client List

For the first time in months, we’re accepting a limited number of new clients.
We intentionally limit onboarding to ensure every client receives responsive, high-quality support.

Request a Consultation

Advisory

Business planning, strategy, and reverse engineering your end goals to guide your towards success.

- Learn More

Software

When it comes to running almost any business, the right software and systems can help things run much more smoothly.

- Learn More

Tax

Whether you need help with tax compliance such as PAYE, VAT and annual tax return.

- Learn More

Accounting

Whether you are a sole trader, landlord, or run a limited company, we can keep you compliant.

- Learn More

About Adrian Markey

Adrian Markey FCA FIATI Director

Adrian Markey | Chartered Accountants is a Warrenpoint-based practice serving small businesses, contractors and individuals across the UK and the island of Ireland.

Founded in 2016 by Adrian Markey, the firm has grown into a team of Chartered Accountants, Accounting Technicians and trainees who handle day-to-day client work.

Two specialisms set the firm apart from a typical practice: cross-border taxation across NI and ROI, and an unusually heavy use of AI and automation in both our own work and what we build for clients. The latter spans finance-function automation, integrating AI tools into existing workflows, and lightweight app development for specific business problems.

Beyond the specialisms, we work with contractors, sole traders and small limited companies on both sides of the border, with the level of involvement shaped to what each client actually needs — some closely, across bookkeeping, management accounts, tax and ongoing advice; others once a year for compliance. As an Authorised Corporate Service Provider (ACSP) registered with Companies House, the firm also handles director and PSC identity verification.

Twice nominated for Accounting Excellence awards (New Firm of the Year 2017, Practice Pioneer 2018). Adrian has also been featured in the national press for his work on cryptocurrency taxation, a niche the firm continues to support.

Learn More

Testimonials

We’ve been working with Adrian for the past couple of years and it’s been a pleasure. His team have been instrumental in streamlining our financial processes and setting up automations that have saved us countless hours of manual work. The accounts preparation and bookkeeping services have been top-notch and always delivered on time.

Gary Carruthers

Director at UnderwaterPistol

We love working with Adrian and his team. They are always so responsive and supportive.

Marine Tanguy

CEO & Founder of MTArt Agency

Adrian is a true gentleman and carries out his job with high standards of excellence. Highly recommended. Always meets deadlines and keeps me on track.

Maria McGuinness

Director - Scissor Sister

Adrian has provided us with a very professional and comprehensive accountancy service across our numerous operations. We have been particularly impressed by the "personal approach" that we have received from Adrian and his team, with our numerous enquiries in relation to tax, accounting software and general accounting affairs. It's nice to know that we have professionals working with us that have a working knowledge of our businesses.

Steve Turner

Managing Director of Galaxy Coaching & Sinclair Property Group

Adrian has always proven to be professional, courteous and hard working. He is knowledgeable and passionate about his work - which means our business prospers. Working with Adrian has not only saved us money, but also precious time and sanity with his advice and expertise.

Shane & Dorothy Neary

Owners - NearyNogs Stoneground Chocolate

Adrian was recommended to me by a friend in 2014, and I have worked with him ever since. He makes the world of accountancy very understandable and explains things very clearly. Adrian has made the running of 2 business extremely easy and affordable from an accounts perspective and he is always on hand to take a phone call and offer advice. I have recommended Adrian to several friends and colleagues and I will continue to do so in the future.

Ciaran Kelly

Director - CPJK Consulting & GMS Servicing

Accreditation

Latest Posts

Accounting

Making Tax Digital for Income Tax: Starting April 2026

From April 2026, big changes are coming to the way many self-employed people and landlords report their income to HMRC. The Making Tax Digital for Income Tax Self Assessment (MTD ITSA) system will replace the traditional Self-Assessment tax return for those above certain income thresholds. Instead of submitting one yearly return, you’ll be required to […]

Guides

Dext – A Complete How-To Guide for Clients

A complete how-to guide for clients using Dext. Learn how to set up your account, upload receipts and invoices using the mobile app, email-in feature, browser upload, Dropbox, and automated forwarding rules. Ideal for new users looking to streamline their bookkeeping and avoid common mistakes.

Tax

Back To Basics: Self Assessment – Deadlines and Payment Dates Explained

Confused by Self-Assessment tax deadlines? Here's a simple guide to when you need to file, how to pay, and what happens if you're late.

Tourism

New Guide: Starting an Airbnb – Key Insights for First-Time Hosts and Investors

We’re excited to announce the release of our comprehensive guide, “Starting an Airbnb: A Comprehensive Guide for First-Time Hosts and Investors.” Whether you’re looking to invest in a new property or convert an existing one into a short-term holiday let, this guide covers all the key areas to help you make informed decisions. What’s Covered […]

Xero Partner

Xero – for bookkeeping, analysis, integration and growth.

Find out why we recommend Xero and what it can do to help you keep you business compliant whilst easing the admin burden and giving you the tools to help grow your business. Read More…