As A Dunfermline Accountant With 30 Years Experience, With My Team I Can Help Your Business Succeed & Beat The Taxman.

We Can Help You.

Jason Nellyer Founded OnTax Accountants in 2002.

Jason Nellyer (Director)

Business Planning




Reliable & Effective

OnTax Accountants are a dunfermline based firm with national reach. Using cloud based solutions and the extensive business experience of our staff, we deliver intelligent, clever solutions.

Why Choose Us As Your Accountant?

As accountants we see many business make fatal flaws by trying to "do it all themselves" or picking the cheapest accountant they find. In doing so, they miss some amazing opportunities. This video illustrates this and why selecting the right accountant to work with is the best move you can make.

Jason Nellyer Founded OnTax Accountants in 2002.

Meet The Owner...

My name is Jason Nellyer, founder of OnTax Accountants Ltd in 2002. I have 30 years commercial & accounting experience working with businesses from kitchen table startups to enterprises with turnovers up to £50 million.

Feel free to drop in and meet myself and the team, we are always looking to help local businesses thrive and you are sure to feel peace of mind in whatever task we undertake for you. Looking forward to meeting you soon!

My team work with me and are trained to the highest standards so that we can look after your needs in the most professional & efficient manner.

Selecting The Right Accountant In Dunfermline
Is Paramount To Your Success...

Helpful & Friendly

We are always available and on hand to answer your queries and advise you


30 years of commercial experience in traditional and online businesses

Communication Skills

We avoid jargon so that you understand clearly what we mean

Attention To Detail

We implement a bulletproof approach to our client book-keeping

Technical Skills

We have specialist Sage and Xero skills in house should you need them

Client Care

We care about your opinion of us and work hard to keep you happy

Our Team, Services, Expertise & Reputation
Are Geared To Your Success
Why Go Anywhere Else?

Our Team

Our team at Ontax Accountants Ltd benefits from a mix of Book-Keeping, Accounting, Taxation, Vat and Payroll skills & in depth knowledge of web marketing & online technologies. The practice is headed up by Mr Jason Nellyer, owner & founder since 2002 who has 30 years experience in business (22 years as an Accountant).

Our Services

We provide advice on book-keeping, vat, payroll, sole traders, partnerships & limited companies when your business needs it, not just when you ask for it. We are able to advise on a range of complex matters. We establish a one-on-one relationship with each of our valued client, ensuring that our advice is tailored to their needs.

Our Expertise

We pride ourselves in being "tech savvy" Accountants who can show you solutions to streamline your business. Our expertise will save you a fortune and give you a good nights sleep without the worry of book-keeping, paye, vat and taxes.

Our Reputation

Our 225+ clients have always been our greatest asset. We have helped so many of them achieve amazing things and have been rewarded with 65+ testimonials. From table top startups to £6M turnovers, we have assisted many achieve their goals.

Nightmares End ... And Peace Of Mind Starts ... When You Call 01383 729053

Changing To OnTax Accountants In Dunfermline?

We Make It Easy & Hold Your Hand The Whole Way

Our "No Hassle" Changing Accountants Guide

Starting A Business?

We Can Help You Every Step Of The Way...

Our "Everything You Need To Know About Starting A Business" Free Guide

My Clients Will Tell You How Good We Are...

These are just a few testimonials from current and previous clients. The words of appreciation speak volumes about the service we supply and the standard we supply it to.

  • Thanks for your perseverance in recovering £19K vat!

    STEPHEN HADDOW - Owner of Shadow Marine

  • Jason, you never cease to give us excellent service!

    MR SIMON HOLLOWAY - Holloway Interiors, Dunfermline

  • Awesome service, I have been well looked after.

    Mrs J OSLER - Bubblesonic, Cowdenbeath

  • You’re always there for me when I need you mate..

    MR MIKE LEES - Active Industrial Training Ltd, Cowdenbeath

You'll Find OnTax Accountants Ltd Here

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Frequently Asked Questions

Call us and arrange a free meeting. At this meeting, we will discuss your needs, what the solution is, how we will go about it and the charges. It's an informal meeting with your very best interests at heart.

Absolutely! We take care of everything. It's as simple as a standard letter called a "professional clearance letter" being sent from us to your existing accountant. They will then provide us with a "handover pack" containing all the information we require to set up your opening position. 

We then commence our usual services for you leaving you to focus on what matters most in your business.

We are very experienced at helping people who are new to business.

We have strong internal processes that will take you through registering for self assessment as well as complying with all legal requirements as you go forward. We will guide you at each step of the way and will always be there to take your phone call queries.

Some people have friends who offer to help them complete their tax return. Others feel they can tackle it themselves.

Given that obtaining an accounting qualification is 6 years hard studying along with extremely difficult exams and years of practical, it's unlikely that any route other than using an Accountant is going to be successful for you. Wanting to dodge accounting fees doesn't make someone an expert. It may seem like you are saving money, but at what other costs?

Is your tax bill higher than it should be? Or your accounting records just plain wrong? Is a liability to the taxman building up in the background only to erupt at the most inconvenient moment?

Whoever you choose, make sure they are suitably qualified and able to look after your best interests...

Run Your Business.
Let Us Do The Numbers.

You Went Into Business To Specialise. Why Become An Accountant As Well? Every Minute Spent Away From Your Specialism Is A Minute Wasted. Let Us Help You Reclaim That Time.

Ready To Take The Next Step??

Drop me a line today for a free meeting and a free quote!