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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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We will never share your data without permission. Read 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

One of our main focuses is consistently exceeding expectations. We work hard to achieve this, and we’re honoured our clients agree by rating us as one of the Top 5 Rated Accounting Firms on Trustpilot.

See our 450+ reviews on Trustpilot

Extremely professional

Extremely professional, polite and courteous onboarding experience.

21st January, 2020

Awesome customer experience!!

Awesome customer experience!!

20th January, 2020

Very professional and quick to respond…

Very professional and quick to respond to any questions

10th January, 2020

By far the best service I have ever…

By far the best service I have ever received in a B2B environment. Highly recommend

6th January, 2020

Satisfied Customer

I have been dealing with Nixon Williams since 2014. In that time they have provided an excellent service. My current accountant Rizwan Khan is always quick to respond to any requests and keeps me up to date.

20th December, 2019

Excellent team

Excellent team. Very proactive. Dedicated teams for different functions providing specialised services, and efficient handshake between teams making it seamless for the customer. Very customer centric, always works in the interest of the clients. Excellent tools. Highly recommended.

18th December, 2019

Request a call back

We will never share your data without permission. Read our privacy policy to see how we use your data.