Professional accounting, tax, and advisory services for confident business decisions and lasting success.
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Trusted by businesses for reliable accounting, tax, and advisory support that brings clarity and control.
Accurate, timely accounting that helps you make better business decisions and stay fully compliant.
Strategic tax planning that ensures compliance while helping you retain more of your profits.
Reliable payroll management that keeps your employees paid correctly and your business compliant.
Practical, results-driven advice that supports growth, improves performance, and strengthens financial control.
Strategic guidance on financing structures, acquisitions, and business growth capital.
A complete outsourced accounting function - flexible, cost-effective, and tailored to your business.
Statutory compliance handled so you never miss a CRO filing deadline.
Independent financial analysis for disputes, investigations, and legal matters.
O’Donnell Accountants & Business Advisors was founded in 1995 by Paudie O'Donnell, a qualified accountant with experience across both practice and industry. Driven by a dedication to providing clear financial insights and practical business advice, we have grown into a full-service accounting and advisory firm relied upon by hundreds of businesses and individuals.
Whether you are a founder getting your finances in order, a growing business that needs reliable monthly accounts, or an established company managing complex compliance requirements, we tailor our support to fit.

ODA works with a wide range of clients - from solo traders and early-stage founders getting their finances in order, to SMEs managing complex compliance requirements, and established companies across multiple sectors. We also advise private individuals on tax and financial matters.
Larger firms typically mean rotating teams, slower response times, and advice built around standard packages. At ODA, senior professionals work directly on your account. The firm has operated on that basis since 1995.
It starts with a free consultation to understand your current setup and what you need. From there we put together a transition plan and take over your accounting, tax, or payroll with minimal disruption to your day-to-day operations.
Yes. We work with businesses at every stage - from sole traders and founders setting up for the first time, to growing companies with more complex requirements. Early-stage businesses benefit particularly from getting financial foundations right from the start.
We work with all major accounting platforms including Xero, Sage, and QuickBooks. If your current system is not working well for your business, we can advise on alternatives and manage any migration.
Yes. We support clients across Ireland and work remotely where that suits the client better.
ODA works with a wide range of clients - from solo traders and early-stage founders getting their finances in order, to SMEs managing complex compliance requirements, and established companies across multiple sectors. We also advise private individuals on tax and financial matters.
Larger firms typically mean rotating teams, slower response times, and advice built around standard packages. At ODA, senior professionals work directly on your account. The firm has operated on that basis since 1995.
It starts with a free consultation to understand your current setup and what you need. From there we put together a transition plan and take over your accounting, tax, or payroll with minimal disruption to your day-to-day operations.
Yes. We work with businesses at every stage - from sole traders and founders setting up for the first time, to growing companies with more complex requirements. Early-stage businesses benefit particularly from getting financial foundations right from the start.
We work with all major accounting platforms including Xero, Sage, and QuickBooks. If your current system is not working well for your business, we can advise on alternatives and manage any migration.
Yes. We support clients across Ireland and work remotely where that suits the client better.
Book a free consultation and find out how ODA can support your business.