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About Ultra Tax Ltd
Trusted Accountants in Castle Eden

Welcome to Ultra Tax Ltd, where award-winning tax expertise meets genuine care for your financial success. As Castle Eden's Tax Team of the Year 2024, we've transformed traditional accounting by offering what businesses really need: fixed pricing, unlimited consultations, and a dedicated accountant who truly understands your goals. From self-employed professionals to growing businesses, we're proud to maintain a 100% client retention rate through our commitment to honest, transparent service.

global award for Ultra Tax Ltd Tax Advisory Firm of the Year
Voted Best Tax Service in Sunderland, UK 2024
Ultra Tax Ltd Voted best business of 2025 In Sunderland
Best Tax Service in Sunderland, UK 2023
Voted Best Tax Team UK 2024
Global Awards Winner Tax Team of the Year 24/25 Ultra Tax Ltd

Our Story: Built on Trust and Excellence

At Ultra Tax Ltd, we're more than just accountants in Castle Eden – we're partners in your financial success. Founded with a clear vision to revolutionise accounting services in the North East, we’ve grown from a passionate startup into an award-winning firm that always puts clients first.

Why We're Different

As forward-thinking accountants based in Castle Eden, we've torn up the traditional rulebook. We believe in fixed pricing, unlimited support, and long-term client relationships. This modern approach hasn’t just won us loyal clients — it earned us the title **"Tax Team of the Year 2024"**, a true reflection of our commitment to excellence.

Our Mission

We're on a mission to help businesses and individuals thrive through honest, transparent, and proactive tax and accounting services. Whether you're a contractor, influencer, landlord or small business owner, our goal is to maximise your returns and ensure complete compliance.

Our Core Values

Transparency

Fixed pricing with no hidden charges

Excellence

Award-winning expertise you can rely on

Accessibility

Unlimited consultations with your dedicated accountant

Innovation

Using cutting-edge cloud software for accuracy and speed

Integrity

100% client retention through honest service

Proactivity

Year-round monitoring and strategic tax planning

Meet Your Tax Experts

Our team of qualified accountants and tax professionals blend deep technical knowledge with a genuine passion for helping clients succeed. We're small business tax specialists who truly understand your journey — because we've been there ourselves.

Ellen Drewett Director Ultra Tax Ltd

Ellen Drewett - Director & Accountant

 

Ellen is a cornerstone of Ultra Tax Ltd, bringing years of accounting experience to the firm. Ellen has worked extensively in various sectors, including corporate tax, tax planning, and tax compliance. Her dedication to delivering exceptional service and her keen eye for detail ensure that our clients receive the best possible advice and support. Her passion for continuous learning keeps her at the forefront of industry changes, allowing her to provide cutting-edge solutions to our clients.

John-Ross Thubron - Director & Accounts Assistant

 

John-Ross brings a fresh perspective and a strong background in finance to his role as Accounts Assistant at Ultra Tax Ltd. John-Ross is well-equipped to handle various accounting tasks, from bookkeeping to financial analysis. His dedication to accuracy ensures that our clients' financial records are meticulously maintained. His enthusiasm for continuous improvement and his commitment to delivering high-quality service make him a valuable member of our team.

John Ross Thubron Director Ultra Tax Ltd
Connor Thubron Director Ultra Tax Ltd

Connor Thubron - Director & Marketer

 

Connor is the creative force behind Ultra Tax Ltd. As our Chief Marketing Director, Connor oversees all aspects of digital marketing, social media management, and website development. With extensive experience in crafting effective marketing campaigns, Connor has significantly enhanced our online presence and client engagement. His innovative strategies and keen understanding of market trends ensure that Ultra Tax Ltd remains at the forefront of the accounting industry.

What We Offer

As specialist accountants in Castle Eden, we provide comprehensive services including:

Self-Assessment Tax Returns

HMRC-compliant tax returns and timely submissions service in North East England. Maximise your tax savings with our award-winning team. Fixed-rate pricing with unlimited support.

Limited Company Accounts

Comprehensive limited company accounting in the North East. Dedicated accountant, year-round monitoring, and unlimited consultations. Industry-leading software for precise financial management.

Tax Rebate Claims

90% success rate in tax rebate claims. Fast processing with our Tax Team of the Year 2024. Free initial assessment available.

CIS & Contractor Services

Specialist CIS accounting in North East England. Quick refunds, monthly CIS returns, and dedicated construction expertise. Fixed-rate solutions.

Property Tax Services

Expert property tax accounting for North East landlords. Maximise rental income and minimise tax liability with our award-winning property specialists.

VAT & Payroll Services

Expert VAT management and payroll solutions in North East England. Monthly/quarterly VAT filing, PAYE management, and auto-enrolment support. Fixed-rate packages available.

Why Clients Choose Ultra Tax Ltd

When you choose Ultra Tax Ltd, you’re not just getting an accountant — you’re gaining a trusted partner invested in your success. Our 100% client retention rate speaks volumes about the trust we've built and the results we deliver.

Tax Team of the Year 2024

Recognised nationally for outstanding results, client service, and innovation in the tax and accounting industry.

Dedicated Accountant for Every Client

You’ll never deal with a call centre. We assign you a personal accountant who understands your business and is available when you need them.

Fixed, Transparent Pricing

No surprise invoices — just clear, upfront pricing so you always know what you're paying for and why.

Unlimited Expert Consultations

Got a question? Need advice? You’ll have unlimited access to your accountant by phone, email, or in person.

Proactive Tax-Saving Advice

We don’t just file your returns — we actively look for ways to reduce your tax bill and improve your finances.

Free Initial Consultation

Sit down with us (in person or online) with zero commitment. We’ll review your situation and explain how we can help — no pressure, no jargon.

Ready to Get Started?

Book your free consultation today and experience accounting done differently.

Or

to begin your journey with Ultra Tax Ltd — the most trusted accountants in Castle Eden.

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