Tel: +44 (0)2871 360 821

Tel: +44 (0)2871 360 821

L. Duffy & Co. of Derry are chartered accountants and Registered Auditors. Based in Derry City / Londonderry, Northern Ireland, we have clients from all over the UK and Ireland.

Our clients include individuals with simple tax affairs, small traders and partnerships, small to medium sized companies, charities, community groups, voluntary organisations and wealthy individuals.

What sets L. Duffy & Co. Derry apart is the service that we provide. No client is too small or too big. All our clients receive the time, attention and expertise needed to ensure that they receive the best advice possible. Our clients know that we are always there for them through the good times and the bad times and that we really do make a difference to their business.

Laurie has been dealing with my tax affairs for the last 7 years. He has always provided a terrific service and I can drop in and see him any time. I would recommend him highly. Michelle Kelly, Hairdresser (07834 170941)
We have worked closely with L Duffy & Co since we started in business 9 years ago. They have always been at hand when we needed any help or assistance and have provided us with invaluable business and taxation advice as our business has grown to where it is today. Sacha Dolan, Managing Director, Border Service Station Ltd
We would recommend L Duffy & Co to any charitable or non-profit organisation. They have assisted us with countless grant applications, forms and accounts over the years. It is safe to say that they are one of the reasons behind our success. Anne Craig, Chair of Stage Beyond Theatre Company For Adults With Learning Disabilities
Moving to L Duffy & Co last year from our previous accountants has transformed our knowledge of the business. Laurie provides us with up to date information that we can understand and use in the business. We now understand the numbers, whereas before we couldn't understand what our accountant said or what they actually did. Laurie is an accountant who speaks in plain English and understands our business. Kevin Foley, North West MOT Services
Laurie has been a great help to our group since the day we first walked into his office. We were a small group struggling to get funding. Now we have our funding and Laurie has been there every step of the way helping us across many hurdles and obstacles. I highly recommend Laurie and his firm L Duffy & Co to anyone who needs a top class accountant who is down to earth and easy to talk to. Lillian Seenoi, North West Migrants Forum
L Duffy & Co helped us through the start-up of our hairdressing salon. They take care of all our accounts, payroll and taxation work. They are excellent to work with, very down to earth and approachable, totally unlike your stereotypical accountants. Five Star Service. Michael Shevlin, Partner, Michael Tomasz Hairdressing, Rock Mills, Strand Rd, Derry (028 7126 8172)
We have had to call Laurie at the 11th hour on many occasions and he has always come through. Cyril Kelly, Soupstone Productions Ltd (Film Production Company)
I would have no hesitation in recommending L Duffy & Co to any business start-up. I have been dealing with Laurie for 3 years now while doing my accounts and I have found him to be very professional, efficient, approachable and helpful. Chris McSwiggan, Asset Finance/Contract Hire and Mortgage and Insurance Broker, (07738 727025)
We have been a client of L Duffy & Co for a number of years and have always been provided with a very efficient and reliable service. We believe that Laurie provides a very detailed service and is always at hand for advice when needed. If you are looking for a good, sound and friendly accountancy firm, then we would recommend L Duffy & Co. Andrew McCartney, Director, Derry Taxis
I have dealt with L Duffy & Co for many years now in my capacity as director of a company and also my personal family tax affairs. I have found Laurie to be a down to earth bloke, very professional but at the same time very approachable. I consider him to be an excellent accountant and a good friend and would highly recommend L Duffy & Co to anyone looking for a good accountant. Frank Brufton, Director, B5 Technology Ltd, Lincolnshire, England
I would highly recommend L Duffy & Co Accountants to any business. Laurie is plain talking and always puts your company's best interests first. As a new start up business with no previous experience I found his advice and expertise invaluable and having such a good accountant is an asset which you will call on time and time again. Freddie Billington, Bits-Network (07850453115)
L Duffy & Co has been providing auditing and other accountancy advice to our group since 2007. We have always found the service to be excellent. Laurie has an appreciation of the objectives and priorities of the not for profit sector and is extremely cooperative, accessible and helpful. I would have no hesitation in recommending this company to any community group seeking auditing or accountancy services. Mura Mac Lochlainn, Muff Community Development Co-op
We have been with L Duffy & Co since 2001 and have always found them to be very professional, efficient and courteous. I would recommend them to anybody who is looking for a first class accountant and tax consultant. Eamonn McCusker, McCusker Surveying
I have been a client of L Duffy & Co for the last ten years. Throughout I have always received a first class, quick and efficient service. I have relied on the clear, unambigous advice which has been provided. I continue to be a client and actively recommend the firm. Laurie is always approachable and resourceful. He is well versed in both Northern and Southern Ireland business and tax matters and is my first call for advice. Terry Deehan, Bsc FCCA, Direcor Mayhugh Ltd
We've been working with Laurie from the early days of our business. In that time his advice has been invaluable as we've grown our business. Laurie has always been available for a chat and showed a great interest in our business. I believe Laurie has an understanding of his client's business that other firms lack. I couldn't recommend him highly enough, especially to a new business, where his experience and knowledge really can be invaluable. Andrew Montgomery, Dano's Petshops, Strabane and Stranorlar and Ballymore Farm Pet Foods, wholesale producer of dog foods
Laurie is a pleasure to work with, extremely proficient and thorough in his discipline, and always delivers accounts in a timely manner. He's very easy to get along with and has a great sense of humour. I would highly recommend him to any business. Paul McCauley, G&P McCauley Ltd and online car sales firm
Laurie has been working with us for the last 10 years. He has helped us out at a moment's notice on countless occasions (bookkeeping and accounts, not being one of our strengths). We feel exceptionally fortunate to have his firm as our accountants. Tom Kelly, The Bogside Artists, Derry
I found L Duffy & Co to be an extremely flexible and professional organisation to work with. I look forward to working with them in the years to come. Eddie Friel
If you are looking for an approachable, professional, down to earth accountant you can trust look no further than Laurie Duffy. We have been clients for almost ten years now and would highly recommend L Duffy & Co to any business. James McDonough, The Wheelie Bin Sanitation Company
We have been working with L Duffy & Co for the last year. We visited several different accountancy firms before choosing L Duffy & Co. I can safely say that it has been one of the best business decisions we have made. I would highly recommend L Duffy & Co to any new business or long established business. You won't be disappointed. Gavan Duffy, Inteachan Technologies Ltd, 14 Teversham Rd, Fulbourn, Cambridge
Laurie has been my accountant for the last 7 years. In that time I have found him brilliant to deal with. He is very helpful, always ready to see you at a moment's notice, even if only for a quick chat. Apart from being a great accountant, he's also a very genuine person. Mark Olphert, Swift Cabs, L'Derry
Looking for a good accountant? Then look no further. C.A.L.M.S have dealt with Laurie Duffy since 2006 during which time Laurie has provided our organization with excellent support and assistance in the areas of Financial Management, P.A.Y.E. and preparation of our Annual Accounts. His services have been a major factor in C.A.L.M.S success. C.A.L.M.S., Community Action for Locally Managing Stress
I'd have no hesitation in recommending L. Duffy & Co. Accountants to any SME. Always courteous and diligent, Laurie Duffy offers good advice and is very professional in his dealings. Zoocreative Design
After years of PAYE employment, we were new to the business world and a trading partnership. We had left things very late and were feeling overwhelmed by tax returns and accounts. However, once Laurie took over, he dealt with everything in a simple, manageable way for us and provided a prompt, efficient and timely service and good advice throughout. We would recommend Laurie and his firm, L Duffy & Co to any start up business or anyone dissatisfied with their present accountants. Dominic and Maria Whitehouse, Sussex Heritage Centre, Arundel, West Sussex
Laurie has always been attentive to my needs and often over delivers with his service. As a relatively new limited company (Sole Trader in the past) I often have questions and Laurie is never tired of explaining even the seemingly most obvious things. Have been using his services for a few years and was never disappointed while he provides fantastic, dependable, fast and reliable advice so I can do what I do best without having to worry about my accounting. Muhammad Yahya – Wightcode Consulting Ltd


  • Accounts preparation
  • Management accounts
  • Bookkeeping service
  • Audit


  • Tax refunds
  • Self-assessment tax returns for UK and Republic of Ireland
  • Corporation tax
  • Capital gains tax
  • Inheritance tax
  • VAT
  • PAYE and NI

Consultancy and other services

  • Business start-up service
  • Financial projections and cashflow forecasting for management, banks, funders
  • Accountancy software advice on purchase and implementation
  • Risk assessment and policy statements for money service businesses
  • CIS, construction industry scheme
  • Charities
  • Company secretarial services
  • Feasibility study reports
  • Business appraisal reports

Any questions, comments or queries?

Contact us using the details or form below:

L.Duffy & Co.
12 Queen Street,
Derry / Londonderry,
BT48 7EG

Tel: 028 7136 0821