-
Business Risk Services
Our Business Risk Services team deliver practical and pragmatic solutions that support clients in growing and protecting the inherent value of their businesses.
-
Consulting
Tailored consulting solutions that deliver measurable results through digital, regulatory and strategic transformation.
-
Corporate Finance and Deal Advisory
We offer a dedicated team of experienced individuals with a focus on successfully executing transactions for corporates and financial institutions. We offer an integrated approach, with our corporate finance specialists working seamlessly with tax and other specialists to ensure that every angle is covered.
-
Forensic Accounting
We have a different way of doing business by delivering real insight through a combination of technical rigour, commercial experience and intuitive judgment. We take pride in delivering responsive and tailored solutions to all our clients, capitalising on the wealth of experience housed within our Belfast and wider Forensics team
-
Restructuring
We work with a wide variety of clients and stakeholders such as high street banks, private equity funds, directors, government agencies and creditors to implement solutions which provide the best possible outcomes.

-
Audit and Assurance FRS 102 Periodic Review Series – Other changesOn 27 March 2024, the Financial Reporting Council issued amendments to FRS 100 – 105 (known as GAAP, or Generally Accepted Accounting Practice), a suite of accounting standards applicable in the UK and Ireland. These are used by an estimated 3.4 million businesses in preparing their financial statements.
-
Audit and Assurance ID Verification: Economic Crime & Corporate Transparency Act 2023Companies House is introducing mandatory identity verification requirements for Directors and People with Significant Control (PSCs), as the next step towards full implementation of the Economic Crime and Corporate Transparency Act 2023.
-
Audit and Assurance FRS 102 Periodic Review Series – Accounting for LeasesOn 27 March 2024, the Financial Reporting Council issued amendments to FRS 100 – 105 (known as GAAP, or Generally Accepted Accounting Practice), a suite of accounting standards applicable in the UK and Ireland. These are used by an estimated 3.4 million businesses in preparing their financial statements.
-
Article Changes to company size thresholds in the UKOn 10 December 2025 the UK Government laid The Companies (Accounts and Reports) (Amendment and Transitional Provision) Regulations 2024, which will take effect on 6 April 2025.
-
Corporate and International Tax
Northern Ireland businesses face further challenges as they operate in the only part of the UK that has a land border with a country offering a lower tax rate.
-
Employer Solutions
Our team specialises in remuneration and incentive planning and works closely with employers, shareholders and employees to ensure that business strategies are aligned and goals achieved in the most tax efficient, cost-effective manner.
-
Entrepreneur and Private Client Taxes
Our team of experienced advisors are on hand to guide you through any decision or transaction ranging from the establishment of new business ventures, to realising value on exit, to succession planning and providing for loved ones.
-
Global Mobility Services
Grant Thornton Ireland offer a different approach to managing global mobility. We have brought together specialists from our tax, global payroll, people and change and financial accounting teams across Ireland and Northern Ireland, while drawing on the knowledge and insights of our global network of over 143 offices of mobility professionals to provide you with a holistic approach to managing global mobility.
-
Outsourced Payroll
Our outsourced service provides valued service to over 150 separate PAYE schemes. These ranging from 1 to 1000 employees, working for micro, SME and global employers. The service is supported by the integrated network of tax and global mobility teams and the wider Grant Thornton network delivering a seamless service. Experienced staff deliver a personal service built around your business needs.
-
Tax Disputes and Investigations
Our Tax Disputes and Investigation team is made up of tax experts and former HMRC investigators who have years of experience in dealing with a variety of tax investigations. Our expertise and insight can guide you through all interactions, keeping your cost at a minimum while allowing you to continue with the day to day running of your business.
-
VAT and Indirect Taxes
At Grant Thornton (NI) LLP, our team helps Northern Ireland businesses manage their UK and global indirect tax risks which, as transactional taxes, can quickly become big liabilities.

One of the challenges in any investigation, regulatory or compliance review, or expert witness assignment is to quickly access and analyse the important data. This challenge is complicated by the fact that the amount of data that organisations’ typically hold grows at a rate of 40% per annum.
In addition, Forensic Data Analytics (FDA) is an extremely helpful technique that can be deployed proactively in the prevention of fraud or reactively during the investigation of fraudulent activities.
FDA is used to assess, manage and mitigate risk within organisations as well as identify possible occurrences of fraud. Investigative techniques and analytics are used to examine data with the aim of identifying anomalies or unusual patterns that could lead to the identification of fraud or the identification of weak internal controls.
Our Services
We can provide both proactive and reactive Forensic Data Analytics to meet your requirements.
Forensic Data Analytics is embedded by our team on all tasks we carry out from investigations and expert witness assignments. This helps us to identify and define the important facts from information provided by clients.
Our team have assisted clients by providing Forensic Data Analytics in the following instances:
Why Grant Thornton
Our service offering provides customised forensic analytical solutions that are developed to meet client challenges. The Forensic Data Analytics team leverages their analytics and accounting expertise along with industry experience to deliver a customised offering to our clients. We work closely with our colleagues in eDiscovery and Cybersecurity to ensure a comprehensive approach to all investigations.