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About us

Since 1995, we’ve been providing A1 accountancy services to our clients, steered by our watertight values and principles.



With three comprehensive packages and a number of add-ons, we can equip you with everything you need to help you ride the waves of contracting.



Whatever you’re searching for, our scope of industry knowledge and resources can help.

IT Contractor Seeking an Accountant?

Time at your screen, not with your spreadsheets. Leave your finances to someone else.

  • Instant link to your accountant: no wall of people between you and your accountant, no endless waiting for answers to your questions.
  • Free limited company formation if you’re new to contracting, or work for an umbrella company.
  • Fixed-fee packages. You choose from our packages to suit your needs, from £95+ VAT a month.
  • Specialist IT accountants, with over 20 years’ experience in helping IT professionals like you live their dreams.

Speak to an expert today

01253 362 026

Mon-Thu (8am to 8pm) | Fri (8am to 7pm) | Sat (10am to 4pm)

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From time to time we would like to contact you with news and updates about our services. Please review our privacy policy to see how we use your data.

Who are Nixon Williams?

We’re accountants who have, for the past 23 years, specialised in contractor accountancy services. We offer the most comprehensive IT contractor solutions for a simple fixed fee, with no contract, and no exit fee. We pride ourselves on being your partner and will support you every step of the way, giving the best advice for you and your business.

Why us?

That’s a fair question. There’s a lot of accountants for contractors out there.

Well, we’ve partnered with thousands of IT contractors since 1995, which means we understand the unique needs of the self-employed. We give you direct access to your accountant, so you’ll never be on your own.

We strive to give the best in accountancy advice and knowledge through:

  • An expert team

98% of us have completed, or are studying towards, qualifications including ACCA, CTA, ATT or AAT.

  • Keeping you in the loop

We handle all correspondence and queries with HMRC and will inform you of any important legal changes.

  • Simplifying things

To quote a client, we answer questions in a way that someone who’s not a tax expert can understand.

  • Trust and credibility

Our clients trust us and rate our service as Excellent on Trustpilot.

Step up your contracting journey and maximise your income. Request your free consultation with one of our experts today.

Request a callback


  • All company adminstration
  • VAT & Payroll setup
  • Access to client portal
  • Self-assessment tax-returns
All features


  • Everything in Gold, plus:
  • Registered office
  • 2nd director service
  • Nixon Williams rewards
All features


  • Everything in Platinum, plus:
  • Business insurance
  • IR35 reviews
  • IPSE package
All features

We work hard to deliver a service that’s beyond expectation and we’re proud to see that our clients agree with us by rating us ‘Excellent’ on Trustpilot.

See all 425 reviews on Trustpilot

Very fast professional service

I have been very content with the service I received so far. Simon Millington has always been very helpful for any query I had…

9th July, 2019

As a contractor

As a contractor, it has made my life very easy. They did everything for me Daniel Williams is my accountant. He is always very helpful.  I don’t understand…

9th July, 2019

Great team of professionals

As a new IT contractor there’s a lot to get your head around. Fortunately, the team at Nixon Williams were there every step of the way, helping me navigate…

8th July, 2019

Outstanding service

I’ve been an I.T. contractor for over a decade, and have always used Nixon Williams as my sole accountant. They are incredibly efficient and helpful, and…

5th July, 2019

Great service

Just had a brilliant service provided by Nixon Williams for the processing of my personal tax return. I have now been with Nixon Williams 11 years and the service is always very timely and professional

4th July, 2019

Just started out contracting…

Just started out contracting and Nixon Williams were recommended to me by a colleague. They have impressed me from the moment I engaged with them, specifically their…

3rd July, 2019

Request a Callback

From time to time we would like to contact you with news and updates about our services. Please review our privacy policy to see how we use your data.