-
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.

Last month the spotlight was turned on Her Majesty's Revenue and Customs (HMRC) after its decision to backtrack on around 2,000 Accelerated Payment Notices (APNs) relating to taxpayers who were part of Montpelier IR 35 Manx Partnership arrangements.
Whilst the conditions for issuing the APNs were not satisfied in this case, the reality is that many taxpayers, including businesses, have already felt the impact of the initiative with many forced to sell their assets in order to pay the amounts demanded from the payment notice. To date, HMRC has issued more than 32,000 APNs and collected more than £1billion of tax since the payments were introduced in 2014.
Prior to the introduction of APNs, taxpayers were aware of HMRC’s ability to recover tax, together with penalties and interest where, following an inspection or enquiry, the taxpayer has been found to have underpaid tax.
However, under the 2014 Finance Act, HMRC was granted significant new powers allowing payment of disputed tax arising from the use of avoidance schemes to be requested prior to the conclusion of investigation.
The estimated tax liability, whether in respect of income tax, corporation tax, VAT, PAYE, or a combination of taxes, will generally be due for payment within 90 days, making affordability a huge concern for taxpayers.
APNs are calculated to a rough estimate and as a result, the final settlement of the tax will likely be very different to the original assessment. This is not always in the taxpayer’s favour and could result in a payment even more significant than first expected. Unfortunately this then has the potential to affect the taxpayer’s cash flow on two occasions, firstly when the APN is issued and secondly when the final amounts including interest and penalties are due.
The APNs do not include penalties or interest themselves, but late payment of an APN can result in surcharges and potential enforcement action being taken to recover the tax or National Insurance Contributions.
All participants in avoidance schemes should take the opportunity to review planning arrangements and consider whether early settlement may be advisable. Perhaps more importantly, if funds to pay the disputed tax upfront are limited, it may be necessary to consider requesting time-to-pay arrangements with HMRC to minimise the scope for late payment penalties.
The key advice is not to ignore the matter, particularly in light of HMRC increasing the capacity of its APN team to enforce payment.
It is expected that all APNs will be issued by March 2016, so if you have entered into any avoidance arrangements, whether before or after APN was introduced in July 2014, now is the time to seek professional advice on the risks of non-settlement with HMRC and the commercial impact of an APN on your company’s cash flow.