Simplifying corporate tax with expert advice

Corporation tax is growing in complexity, with evolving legislation, increasing reporting demands and scrutiny from HMRC. Meeting your compliance obligations is just the starting point, what businesses really need is a strategic tax partner to support governance, reduce risk and identify opportunities to increase retained profit.

Our team supports companies and groups of all sizes by combining expert compliance management with proactive tax advice. We simplify corporate tax obligations, strengthen your governance position and develop strategies to reduce your tax burden. Whether you need annual filings, support through an audit, or longer-term planning, we work closely with you to align our advice to your commercial goals.

Image

Our solutions

Stay compliant while improving efficiency and reducing risk

We take ownership of your company or group’s compliance requirements, ensuring all submissions are accurate, timely and tax-efficient.

Our approach includes:

  • Detailed reviews to identify all relevant tax obligations;
  • Calculation of corporation tax provisions for your accounts;
  • Preparation and filing of corporation tax returns;
  • Strategic planning to improve future tax efficiency;
  • Ongoing advisory support to align tax planning with commercial goals.

By combining compliance delivery with proactive guidance, we reduce the time and resource burden on your team, helping you stay compliant while driving better outcomes.

Simplify tax reporting and reduce audit complexity

Preparing for a statutory audit can be time-consuming and technically challenging. We help eliminate the complexity by providing end-to-end support during the audit process.

We assist with:

  • Reviewing corporation tax provisions for audit purposes;
  • Addressing technical accounting and tax treatment queries;
  • Responding to audit teams and managing liaisons;
  • Ensuring documentation aligns with governance expectations.

Our support reduces audit risk, saves time and ensures your tax position is clearly documented and defensible, allowing you to focus on the wider audit process.

Resolve HMRC enquiries quickly and minimise tax impact

Even fully compliant businesses can face HMRC enquiries, either at random or due to perceived risk areas. We provide hands-on support to manage these processes from start to finish.

Our team helps with:

  • Communication and negotiation with HMRC;
  • Technical defence of tax positions under review;
  • Mitigation of penalties and tax exposure;
  • Alternative dispute resolution and appeals where necessary.

With considerable experience managing HMRC enquiries, we work to resolve matters efficiently and protect your business from disruption and financial loss.

Improve tax efficiency through strategic, forward-looking advice

Our advisers work with you year-round to identify ways to manage and reduce your corporation tax liabilities. We provide tailored advice that reflects your short-, medium- and long-term goals.

This includes:

  • Cashflow-sensitive tax planning;
  • Profit retention strategies;
  • Business expansion or restructuring considerations;
  • Tax incentives and reliefs to reduce liability.

We aim to deliver practical, commercially grounded guidance that supports smarter decision-making and greater tax efficiency at every stage of your growth journey.

Navigate complex corporate tax rules with confidence

Larger companies and groups face additional tax governance requirements that demand prompt attention and expert handling. We help you manage these proactively and avoid unexpected penalties.

This includes:

  • Senior Accounting Officer regime and Business Risk Reviews;
  • Corporate Interest Restriction calculations and planning;
  • Tax strategy publication and governance review;
  • Bespoke advice to support large-group tax compliance.

We identify what applies to your business and develop efficient strategies to meet these obligations, ensuring strong compliance, reduced risk and minimal disruption to operations.

Peter Legge
Get in touch
Peter Legge
Partner - Head of Tax (UK)
Contact Peter Legge Learn more about Peter Legge
Peter Legge
Contact Peter Legge Learn more about Peter Legge
Peter Legge
Partner - Head of Tax (UK)
Peter Legge
+44 28 9587 1081
Image

Why Grant Thornton

We don’t just handle tax compliance, we help you use it as a strategic tool to increase efficiency, manage risk and protect business value. Our advisers build deep relationships with clients, delivering practical, commercially aligned advice at every stage.

With Grant Thornton, our clients receive:

  • End-to-end support: Seamless delivery of compliance, advisory and audit-related services;
  • Stronger governance: Confidence that tax obligations are identified, understood and met;
  • Efficient structures: Ongoing planning to improve your corporation tax position;
  • Tailored insights: Tax strategies aligned to your growth and commercial goals.

Get in touch today to take the complexity out of corporate tax and plan more effectively for the future.

Contact our corporate tax compliance experts

Peter Legge
Peter Legge
Partner - Head of Tax (UK)
Belfast
View full profile
Clare M. Fitzgerald
Clare M. Fitzgerald
Director - Tax
Belfast
View full profile
Neill McKillop
Neill McKillop
Associate Director - Tax
Belfast
View full profile