Welcome to KJO'Brien & Co.

Grow. Increase Profits. Save Tax. Relax.

Building a profitable relationship with you. 

Welcome to KJ O’Brien & Company registered Accountants and Auditors. Located in Wilton, Cork we have been in business for almost 40 years. Our professional team of qualified Accountants specialise in personal & company tax as well as business management services such as Payroll, vat returns, bookkeeping etc.

Our dedicated team of tax Accountants offer the highest level of service and tax advice to ensure you identify possible tax savings and only pay the tax required by the filing deadlines.

We have proven solutions for all of the challenges that SME owners face during their lifecycle. It doesn’t matter whether you’re a start-up business or a well-established one, KJ O’Brien & Co can help you will all of your tax needs.

If you would like more information about KJ O’Brien & Co and our services, or arrange a free no obligations meeting with us, call us today on 021 454 4155.

Compliance Services

Salary payroll detail

All of our compliance services are fully managed by us.

We take you through every step of the process, from gathering the information to preparing the forms and meeting the deadline.


 Find More About Our Compliance Services

Time Saving Services


Our Time-Saving services are the things we can do to make your life easier.

Why waste your valuable time and resources on office chores. We can take care of it for you – properly, efficiently and effectively.


Find Out More About Our Time Saving Services

Value Added Services

Calculator with the word tax written in wooden block letters

Our value added services are focussed on making sure you earn more money and keep more of that money for you, your family and your lifestyle… whatever the size of your business or wallet.


Find Out More About Our Value Added Services

Enquire today for a FREE MEETING with us.

What are people saying?

Real words from real customers!
  • You listened to my plans for the company, advised me on what was sensible, achievable and what made financial sense. I felt very comfortable discussing my business with you and you gave me clarity on the issues I was struggling with. Thank you sincerely for your time, expertise and practical advice. quote2 Find A Conference Venue.com – Cork
  • We really appreciate your contribution to our success and we look forward to our continued relationship.” This testimonial was given by Natacha Nowack Managing Director of Inter Connection - Cork, on the placement of their five thousandth intern student.
  • Nutritionally Yours was a new business starting out and not having enough accountancy knowledge, I headed in the direction of K.J. O’Brien & Co., for my accountancy needs. I was provided with all the necessary compliance services, but more importantly, the business advice I received was second to none. I have no hesitation in recommending K.J. O’Brien & Co., to any business owner requiring exceptionally good business advice.