Contractor Tax Companies in the UK: A Practical Selection Guide (2026)
AC
Acumon Chartered Accountants·15 min read
This practical guide maps the companies that work on contractor tax services in the UK. It is an overview of the field rather than ranking names in a fixed order. Some companies run a wide brief – limited company accounts, umbrella payroll, VAT, IR35 and year-end filings – while others stay tightly focused on one part of the same work. The point is to give you context: who these companies are, whom they typically serve, and where their strengths sit, so you can match that picture to your own contracting setup and choose with a clearer head.
Acumon
Acumon is a UK company of chartered accountants and registered auditors that also runs personal and corporate tax work for businesses, charities, regulated organisations and individuals.
The company works with owner-managed businesses, growing companies, charities and groups that need both statutory reporting and tax support. Tax engagements are scoped and quoted up front, with a named specialist as the day-to-day contact.
Acumon is an ICAEW-registered audit company with an FRC-qualified Responsible Individual able to sign Public Interest Entity audits. That audit registration sits alongside a tax team that includes people with HMRC experience, which the company uses on compliance and enquiry work.
In addition to the Ealing office, Acumon lists bases in Pitstone, Aylesbury and Bournemouth, and supports clients across the UK plus international subsidiaries. The team is described as UK-based, with no offshoring of the work.
Contractors who trade through a limited company often sit in the same mix of corporation tax, personal self assessment, MTD and, where construction work is involved, CIS administration. Cross-border contractors may also need residence analysis and double-taxation relief, which the tax pages list as separate services.
Acumon works with finance contacts and company directors on statutory filings while also covering HMRC investigations, relief claims and the tax positions that sit around a limited company as it grows.
Contractor Tax Capabilities:
Acumon does not market a contractor-only brand, but several of its tax and related services map onto how UK contractors actually file.
These include:
Limited companies needing corporation tax support
Directors who also file personal income tax
Construction contractors and subcontractors under CIS
People moving to or from the UK while still contracting
Companies facing an HMRC enquiry
Businesses hitting MTD for Income Tax
Engagements are typically quoted as a fixed fee after a short call with a qualified accountant.
Registrations and Credentials:
Acumon holds several registrations that sit behind the tax and reporting work.
These include:
ICAEW registration for audit, accounts and probate
UK statutory audit registration
Public Interest Entity (PIE) audit authorisation
Xero Gold Partner status used on MTD and digital records
These registrations allow the company to handle both the company filings and the personal tax that usually sits next to a contractor limited company.
Core Services:
In addition to statutory external audit, Acumon lists tax and support services that contractors commonly need.
These include:
Corporation tax and business tax advice
Income tax returns and MTD support
CIS administration (listed with PAYE and pensions)
HMRC tax investigation support
Double taxation relief and expat tax
R&D tax credits and capital allowances
Company secretarial filings at Companies House
Tax work is often delivered alongside conversations with directors about reporting, reliefs and what HMRC is likely to ask for.
Acumon works with organisations that are:
Running or setting up a UK limited company
Approaching their first heavier year of corporation tax and personal filings
Registering for or operating CIS
Dealing with an HMRC enquiry
Working across the UK and another tax residence
Early contact is framed as a no-obligation call, followed by a fixed-fee plan and, if needed, a handover from the previous accountant.
Address: 1-2 Craven Road, Ealing, London, W5 2UA, UK
Go Limited
Go Limited frames contractor tax as something that runs through the year, not a January-only task. The company works with limited companies, umbrella arrangements and sole traders, inside or outside IR35, and keeps the contractor in control of the business. This is presented as making compliance simpler without taking decisions away. “Take the stress out of tax season” is the line the site uses for that mix of routine and more complex years.
Their work covers dividend timing, IR35 contract reviews and status assessments, plus support if HMRC opens an enquiry. The company also files personal Self Assessment where salary, dividends, rental income or crypto sit beside company activity. Corporation Tax year-end work and expense claims sit in the same package. They talk through scheme choice for indirect tax and the quarterly submission cycle so contracting days stay free. Ongoing support and tax education are offered to people who have just incorporated and to contractors who have been trading for years.
TaxRoot presents itself as an HMRC-registered tax agent for UK limited company contractors. The company runs the company year on a fixed-fee engagement, with a quote and letter generated from turnover, registration status and whether a director is paid. This is filed straight to HMRC and Companies House through their agent account. “A contractor accountant for your limited company” is the line the site uses for that stack.
Their work includes IR35 reviews of contracts and Status Determination Statements, plus salary and dividend splits modelled to the current year. They add Confirmation Statements and register updates so Companies House records do not drift. Indirect tax registration and quarterly submissions are included only where the company needs them, with standard and Flat Rate treatment compared. Personal Self Assessment can sit next to the company filings. Company registration is offered separately for contractors who have not incorporated yet.
No Worries works only with contractors, freelancers and limited companies. The company pairs a dedicated accountant with in-house software, Joy Pilot, which covers invoices, receipts, expenses and AI-assisted scanning and comes with every package. This is sold as a calmer, contractor-shaped relationship rather than a generic practice. “Your accounts, sorted. Your life, lived.” is the line on the homepage.
Their work includes limited company support, sole traders, personal tax, landlord work and an umbrella route through No Worries Red Umbrella, listed as FCSA-accredited and SafeRec-certified. They keep Capital City Accountancy in the same group for contractor and SME clients. The company publishes calculators for dividends, corporation tax, umbrella take-home and salary. Switching from another accountant is treated as a guided handover. Day-to-day questions on expenses and deadlines are part of the ongoing contact, not only year-end.
Aardvark Accounting describes a contractor-focused practice built around a personal, responsive accountant and FreeAgent as standard. The company calls out tax legislation, including IR35, as part of the advice brief and lists FCSA accreditation. This can be taken as a set monthly package or built as a bespoke service, with unlimited advice included. “You earn the money and we’ll be your expert advisers in all things contractor accounting” is the line the specialist page uses.
Their work covers limited company contractors plus sole traders, partnerships and the self-employed. They include FreeAgent so invoices, expenses and bank feeds sit in one place before filings are prepared. The company states there are no set-up fees, tie-in periods or leaving fees, and offers a current-year catch-up so a switch does not have to wait for year-end. The same Wimborne registered office appears as on related contractor pages, with separate numbers for new enquiries and existing clients. Business insurance is signposted alongside the core accounting relationship.
The Accountancy Partnership runs an online contractor desk with a named accountant and free access to Pandle, its MTD-ready software. The company also gives Client Hub access, with a timeline of deadlines and reminders rather than a generic inbox. This is sold as unlimited contact by email, phone or video, with no long-term lock-in. “Your own dedicated contractor accountant” is the line the contractor page leads with.
Their work includes talking through limited company, sole trader or umbrella structure, and IR35, before a package is chosen. They handle the switch from another accountant, including contacting the previous practice and telling HMRC who now acts. Annual reviews look at whether the contracting setup still fits the year. CIS returns, MTD Income Tax updates and company formations can be added when the work needs them. Guides on contracting, IR35 and the Construction Industry Scheme sit on the same site. Staff listed on the page hold AAT, ACCA and ICAEW qualifications.
Business Accounting writes for limited company contractors who know their day rate but not the gap to take-home after corporation tax, dividends and company admin. The company uses fixed monthly fees and says there are no long-term contracts – cancel with notice. This sits next to a same-day response claim for questions to a dedicated accountant. Expense and mileage guidance is framed as keeping claims inside what HMRC will accept.
Their work covers salary and dividend extraction based on actual income for the year. They track corporation tax, Self Assessment and annual accounts so deadlines are not left to the contractor. The company publishes guides on contractor rates, mileage, work-from-home allowances and accounting software. Limited company versus umbrella is treated as a live choice, including what follows if a contract is classed inside IR35. Switching accountants is offered as a separate path on the site.
Key Highlights:
Fixed monthly fees
Same-day responses
Contractor expense and mileage guidance
No long-term contracts
Services:
Expense and mileage guidance
Limited company accounts and corporation tax
Director Self Assessment
Salary and dividend extraction
Contractor rate guides
Contact Information:
Website: www.business-accounting.co.uk
Reflex Accounting
Reflex Accounting describes itself as specialist contractor accountants for UK contractors, freelancers and limited company owners. The company lists IR35 reviews of contracts and working practices as a core piece of that brief. This is aimed at IT consultants, locum clinicians, engineers, finance contractors, creatives and management consultants, each with a short sector note on the who-we-serve page. “Stay compliant, maximise your take-home pay, and avoid costly mistakes” is the promise attached to that mix.
Their work includes company accounts and corporation tax filings to Companies House and HMRC standards. They advise on salary, dividends and allowable costs, and on Flat Rate versus standard treatment for indirect tax. IR35 support is described as strengthening the file and cutting the chance of an unexpected bill. Pension contributions through the company and capital allowances are set out as legal routes to lower taxable profit. Unlimited advice and early flags on rule changes sit in the same pitch. Reflex Accounting Limited is registered as auditors in the UK by ACCA, with an office in Hall Green, Birmingham.
Bolton Tax Accountants, the trading name of Genko Ltd, publishes a contractor accounting and tax page aimed at HMRC compliance and a cleaner tax position. The company covers limited company records, corporation tax, dividends and Self Assessment. This is paired with MTD support using Xero, QuickBooks or Sage. Fixed pricing and clear reporting are the commercial terms on the page.
Their work includes contractor payroll and dividend handling for limited companies. They also list HMRC registration help, the Worldwide Disclosure Facility and the Let Property Campaign on related service pages. Capital gains submissions sit in the same menu. The company is based in Bolton, with a client portal for ongoing files. Contact is by email or phone rather than an instant-quote widget on the contractor page.
Page Kirk treats CIS contractor and CIS sub-contractor tax as a distinct construction brief, not a generic contractor page. The company says tax reporting in construction is more involved than in other sectors and offers help with deductions, compliance and the tax position. This sits inside a wider Nottingham practice that also lists accountancy, audit and assurance, and tax services for limited companies, sole traders and partnerships. Page Kirk is the trading name of Page Kirk LLP.
Their work on the CIS page is framed as navigating the scheme and keeping deductions accurate. They invite contact rather than publishing a long contractor package list. The company also offers outsourced payroll among its general services. The registered office is Sherwood House, Gregory Boulevard, Nottingham. Enquiries go through a central phone line and email.
Streets publishes a freelance and contractor accounting page aimed at creative professionals, media talent and IT consultants. The company works with people trading through a limited company and with self-employed contractors. This brief is built around HMRC rules on IR35, plus how income and expenses are structured. Graphic designers, videographers, software developers and IT consultants are named as typical clients.
Their work includes IR35 risk assessments and guidance on status determination, contracts and working practices. They form personal service companies and look at tax structuring at the point of setup. Ongoing support covers dividend optimisation, allowable deductions and Self Assessment. The company lists a contractor team across multiple UK offices and an enquiry route through [email protected]. Related pages also mention revenue and investigation cover as something clients have used Streets for.
Stewart Accounting Services Limited works with contractors and freelancers from an office in Alloa. The company treats IR35 as the first filter for anyone trading through a limited company, using HMRC’s status tests on substitution, equipment, premises, insurance and prior employment. This is offered as a contract review and a risk assessment, not a slogan. A discovery call is the usual starting point.
Their work includes forming the limited company and registering it with HMRC. They set up a record-keeping system and walk through income tax, National Insurance, corporation tax and registration for indirect tax. Fund extraction from the company is framed as choosing a structure that stays inside the rules. Year-end accounts and online accounts sit on the general services list. Tax investigation insurance is signposted among resources. Landlords, sole traders and partnerships are served from the same practice.
DS Burge & Co runs a contractor accountants page from Wimbledon, offering bespoke personal and business tax support rather than a single package. The company covers IR35 status, CIS obligations for subcontractors, and the usual limited-company filings. This is aimed at people who have left regular employment and now handle their own compliance. Personalised support and a free consultation are the entry points on the site.
Their work includes forming a limited company, corporation tax, statutory accounts and Self Assessment. They handle CIS record-keeping where subcontractors are paid, and R&D tax credits where the work qualifies. Auto-enrolment and workplace pensions are listed for contractors who take on staff, with pension pointers for the self-employed. Xero is the software named on the wider site. Capital gains and crypto tax advice appear on related service pages. Reviews on the contractor page talk about PSC tidy-ups and HMRC reviews handled by the same team.
Key Highlights:
IR35 status advice
CIS compliance for subcontractors
Personal and business tax in one place
Limited company setup
R&D tax credits where relevant
Services:
Construction Industry Scheme support
Limited company setup
IR35 guidance
Corporation tax return
Self Assessment
R&D tax credits
Contact Information:
Website: www.dsburge.co.uk
Phone: 020 4538 4573
Address: The Courtyard, 7 Francis Grove, Wimbledon, SW19 4DW
Conclusion
Which contractor tax company fits depends on the size of the business, the sector it works in, how settled the filings already are, and which rules – IR35, CIS, MTD, or HMRC enquiry work – actually apply. Some companies wrap limited company support, personal tax and status advice into one relationship; others stay narrow and deal with one slice, such as off-payroll reviews or construction deductions. This guide is not a ranking. It is a neutral map of who these companies are and where they concentrate, so a contractor can compare that picture with their own setup. A suitable partner is the one that can give an independent view of the position and then set out practical steps that cut avoidable risk and keep the contracting model steady when rules or contracts change. Use the notes above to shortlist, then test that shortlist against the work you actually need this year.
AC
Written by the Acumon team
Acumon is an ICAEW-registered firm of chartered accountants and registered auditors
based in London, with offices in Pitstone, Aylesbury and Bournemouth. Need advice on
anything covered here? Talk to us.
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