Enter your contact details and we will call you or contact you by email
We are OSA McQuillan, a firm of Professional Accountants, we offer a range of accounting services to businesses. We have over 25 years experience working with small and medium sized enterprises and business owners, and we are well placed to provide business advice on a wide range of areas from cash flow and debt management, tax planning, and profit improvement plans. In the delivery of our accounting services and in our regular meetings with business owners, we develop an in-depth awareness of the main drivers in your business.
Accounting – All companies are required to prepare and file accounts in the Companies Registration Office ( CRO ). At OSA McQuillan Accountants Dublin, we take our duty to our client's compliance needs very seriously. We advise on accounting systems and can help set up finance departments for our clients. We can also advise on the best accounting policies and standards for your business to adopt.
Taxation – Our internal tax experts will review all areas of tax exposure for our clients. They make sure that your company does not fall foul of tax laws and will then come up with tax plans to reduce tax bills for companies, their owners and directors. Why not make an appointment to speak to one of our partners in Dublin and find out how we at OSA McQuillan can help you to improve your business.
Management Accounts – we can provide management accounts services to our clients. These services include monthly/quarterly accounts, key performance indicator reporting, working capital management, sourcing of finance and industry benchmarking and margin analysis.
So if you are looking for a trusted accountant firm that can provide a full suite of accounting services designed with your business in mind. Then give us a call today on the number below. We are based on Blackrock, Dublin.
You can see a full list of what we can do for you if you have a look here: https://www.osamcquillan.ie/register-with-us/
''Eamon O'Sullivan has a stress-free way of getting accounts done while still getting the advice across to help raise my profit.'' Robert Dill
Specialist Accounting advice and expertise
We switched our business to OSA McQuillan's automatic accounts system and it totally revolutionised how we do our accounts. We do ZERO paperwork outside of work hours now, whereas before we spent hours manually entering invoices onto the laptop. Now the invoice comes in, I take my phone out and take a photo and I forget all about it. I can honestly say I would never be without it again.
Keith Grant, Grants Master Butchers, Roundwood, Co Wicklow
I have worked with Eamon O'Sullivan as my accountant for years and would highly recommend him. He has a no nonsense approach to getting accounts done while still getting the advice across to help raise my income level.
Robert Dill, Director Robert Dill Computing
I cannot recommend Eamon and his team enough, they have a system that not only made my job easier in getting my accounts in order, but they were also incredibly patient and understanding with my current situation and taking the time to demonstrate how to best to get all my papers ready. As someone who is new to doing my own taxes I cannot thank them enough for their help.
Barti Murthy
OSA McQuillan provide no-fuss advice on any topic small or large. Their staff have a genuine interest in helping us succeed as well as the attention to detail to keep the day to day on track.
James Kennedy, CEO Piehole
Eamon undertook an accounts job for Age Action Ireland in our office in Dublin. He was a pleasure to deal with, professional in all aspects of the job and excellent value for money. I will be working with Eamon in the near future.
David Fraser, Head of Finance and Commercial Activities Age Action Ireland, Dublin
Eamon was my accountant for a number of years and during that time was always extremely approachable and provided me with invaluable advice time and again. I found him to be highly organised, efficient and very helpful in terms of growing my business. I am happy to recommend Eamon to any owner managed business looking for a personalised, professional service.
Gilly Balmer, Balmer Recruitment, Dublin
Eamon O'Sullivan's firm were our accountants for four years and performed a very good service. They worked well with staff, were timely in doing their work and were good value for money.
Eric Conroy, Former Treasurer An Taisce, Dublin
Eamon has done work for me for a number of years. His attention to detail has more than once resulted in my receiving tax reabates I didn't know I was due. His service is efficient and punctual.
Padraig O Nualllain, Traditional Irish Singer Ballyfermot College of Further Education, Dublin
We switched our business to OSA McQuillan's automatic accounts system and it totally revolutionised how we do our accounts. We do ZERO paperwork outside of work hours now, whereas before we spent hours manually entering invoices onto the laptop. Now the invoice comes in, I take my phone out and take a photo and I forget all about it. I can honestly say I would never be without it again.
Keith Grant, Grants Master Butchers, Roundwood, Co Wicklow
I have worked with Eamon O'Sullivan as my accountant for years and would highly recommend him. He has a no nonsense approach to getting accounts done while still getting the advice across to help raise my income level.
Robert Dill, Director Robert Dill Computing
I cannot recommend Eamon and his team enough, they have a system that not only made my job easier in getting my accounts in order, but they were also incredibly patient and understanding with my current situation and taking the time to demonstrate how to best to get all my papers ready. As someone who is new to doing my own taxes I cannot thank them enough for their help.
Barti Murthy
OSA McQuillan provide no-fuss advice on any topic small or large. Their staff have a genuine interest in helping us succeed as well as the attention to detail to keep the day to day on track.
James Kennedy, CEO Piehole
Eamon undertook an accounts job for Age Action Ireland in our office in Dublin. He was a pleasure to deal with, professional in all aspects of the job and excellent value for money. I will be working with Eamon in the near future.
David Fraser, Head of Finance and Commercial Activities Age Action Ireland, Dublin
Eamon was my accountant for a number of years and during that time was always extremely approachable and provided me with invaluable advice time and again. I found him to be highly organised, efficient and very helpful in terms of growing my business. I am happy to recommend Eamon to any owner managed business looking for a personalised, professional service.
Gilly Balmer, Balmer Recruitment, Dublin
Eamon O'Sullivan's firm were our accountants for four years and performed a very good service. They worked well with staff, were timely in doing their work and were good value for money.
Eric Conroy, Former Treasurer An Taisce, Dublin
Eamon has done work for me for a number of years. His attention to detail has more than once resulted in my receiving tax reabates I didn't know I was due. His service is efficient and punctual.
Padraig O Nualllain, Traditional Irish Singer Ballyfermot College of Further Education, Dublin
The benefit of dealing with OSA McQuillan Accountants is that you can rely on us respond to your phone calls and emails that day.
Read More
Many of our clients are with us for years, trusting us to take care of their accounting and tax needs.
Read More
We produced business accounts for our clients in 2017 on average within 24 days of getting the books and records.
Read More