Expert Tax Services London | Corporation Tax, VAT & Self Assessment
Expert Tax Investigations & Appeals in
London & United Kingdom (UK)
Professional HMRC Defence and Resolution Specialists
Facing an HMRC enquiry can be daunting and time-consuming. AcumenAGC provides robust, compliance-led support for businesses and individuals across London and the UK. We handle the technical complexities of UK tax law, ensuring your rights are protected while seeking the most efficient resolution possible.
Full HMRC Correspondence
Management
We act as your authorized agents.
Technical Tax Defence
Specialist knowledge of UK tax legislation and case law.
Penalty Mitigation
Strategies to minimize or eliminate HMRC penalties.
Fixed-Fee Certainty
No hidden costs during a stressful time.
Service Overview
What is HMRC Enquiries
Acumen Accountants & Tax Advisers provides comprehensive bookkeeping, annual accounts, management accounts, and financial reporting for UK SMEs and limited companies. Whether you need UK GAAP or IFRS compliance, we ensure your financials are accurate, filed on time, and built to support your business growth.”
Who needs it?
Under UK tax law, you should consider professional trust and estate structuring if you meet any of the following criteria:
- SMEs & Limited Companies
- Startups
- High-Net-Worth Individuals
- Contractors & Freelancers
100%
UK GAAP & IFRS Compliance
Who This Service Is For
Tailored Wealth Protection for Every Goal
Our London audit team tailors every review to your specific industry requirements.
SMEs & Limited Companies
Navigating complex Corporation Tax and VAT enquiries.
Startups
Ensuring R&D tax credit claims are defended and compliant.
High-Net-Worth Individuals
Managing lifestyle audits and complex offshore disclosure.
Contractors & Freelancers
Specialist IR35 defence and Self-Assessment support.
Landlords
Addressing undisclosed rental income and Capital Gains Tax enquiries.
10+
Years of Experience
500+
Audits Completed
98%
Client Retention
24h
Response Time
Why Choose AcumenAGC
London’s Leading accountants for tax investigations
Choosing the right UK accountants for tax investigations can be the difference between a minor adjustment and a significant financial penalty.
- London-Based Expertise, UK-Wide Reach While our heart is in London, our digital-first infrastructure allows us to represent clients from Manchester to Cornwall.
- HMRC Experience We understand how HMRC inspectors think. Our team includes professionals seasoned in UK tax compliance.
- Dedicated Accountant You will have a single point of contact who understands your case inside and out.
- Transparent Pricing We believe in fair, fixed pricing to provide peace of mind when you need it most.
OUR PROCESS
Our Proven Process
We use a streamlined, tech-enabled approach to minimize disruption to your daily operations.
Step 01
Initial Case Review
We analyse the HMRC opening letter and your records to identify potential risks.
Step 02
Strategic Defence Planning
We formulate a robust response based on current UK tax statutes.
Step 03
HMRC Liaison
We handle all meetings and phone calls, so you don’t have to speak to the tax office directly.
Step 04
Information Disclosure
We prepare and submit all required documentation in a format HMRC prefers.
Step 05
Settlement & Appeal
If the outcome is unfair, we manage the formal Appeals process or Alternative Dispute Resolution (ADR).
FAQ
Statutory Audit Services: London & UK FAQ
How long does a UK tax investigation take?
The duration varies. A simple aspect enquiry may be resolved in 3–6 months, while a full investigation into a UK limited company can last over a year. Our goal is to expedite the process by providing HMRC with precise, organized data.
Can I appeal an HMRC decision?
Yes. If you disagree with an HMRC assessment or penalty, you usually have 30 days to lodge an appeal. AcumenAGC specializes in representing clients during the appeals process and at Tax Tribunals.
What triggers an HMRC investigation?
Triggers include inconsistencies in filed returns, tip-offs, or simply being part of a “risk sector” targeted by HMRC. Sometimes, businesses are simply selected at random for a compliance check.
Are your fees tax-deductible?
In many cases, the accountancy fees for negotiating an HMRC enquiry are not deductible if they relate to personal tax or if significant errors are found, but we can advise on the specific tax treatment for your business.
Do you offer HMRC compliant services for businesses outside London?
Absolutely. While we are a best tax investigation firm in London for small businesses, our cloud-based systems allow us to serve any UK-registered business or resident.
Our Locations
Expert Tax Investigations & Appeals Specialist in the Heart of London
Based in the heart of the capital, we serve clients across all London boroughs, from the financial hub of the City of London and Canary Wharf to the thriving tech scenes in Shoreditch and Camden.
Canary Wharf &
Docklands (E14)
Westminster & Central London
The City of London (The Square Mile)
Camden, Islington & North London
Canary Wharf HQ
London, UK
Protect Your Business Today
Don’t face HMRC alone. Professional representation is the most effective way to ensure a fair outcome and minimize potential liabilities.
Book a confidential consultation with an AcumenAGC specialist. We respond to all enquiries within 24 business hours.