Lou Celli

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Services Overview
Audit & Assurance
Tax
Advisory
Cloud Accounting
Indigenous Services
Environmental, social, and governance (ESG) and sustainability
Family Business Services

Services Overview

See the whole picture and strategically move forward with the business advisors at Grant Thornton. We’re focused on helping you thrive. See Overview

Audit & Assurance

Team up with advisors who look beyond the audit itself to create value for your business and stakeholders. See Overview

Financial reporting and accounting advisory services
You trust your external auditor to deliver not only a high-quality, independent audit of your financial statements but to provide a range of support, including assessing material risks, evaluating internal controls and raising awareness around new and amended accounting standards.
Accounting Standards for Private Enterprises
Get the clear financial picture you need with the accounting standards team at Grant Thornton LLP. Our experts have extensive experience with private enterprises of all sizes in all industries, an in-depth knowledge of today’s accounting standards, and are directly involved in the standard-setting process.
International Financial Reporting Standards
Whether you are already using IFRS or considering a transition to this global framework, Grant Thornton LLP’s accounting standards team is here to help.
Accounting Standards for Not-for-Profit Organizations
From small, community organizations to large, national charities, you can count on Grant Thornton LLP’s accounting standards team for in-depth knowledge and trusted advice.
Public Sector Accounting Standards
Working for a public-sector organization comes with a unique set of requirements for accounting and financial reporting. Grant Thornton LLP’s accounting standards team has the practical, public-sector experience and in-depth knowledge you need.

Tax

Let us provide you with the insightful and strategic advice needed to navigate the rapidly changing tax landscape. See Overview

Tax planning and compliance
Whether you are a private or public organization, your goal is to manage the critical aspects of tax compliance, and achieve the most effective results. At Grant Thornton, we focus on delivering relevant advice, and providing an integrated planning approach to help you fulfill compliance obligations.
Research & development, government incentives
Are you developing innovative processes or products, undertaking experimentation or solving technological problems? If so, you may qualify to claim SR&ED tax credits. This Canadian federal government initiative is designed to encourage and support innovation in Canada. Our R&D professionals are a highly-trained, diverse team of practitioners that are engineers, scientists and specialized accountants.
Indirect tax
Keeping track of changes and developments in GST/HST, Quebec sales tax and other provincial sales taxes across Canada, can be a full-time job. The consequences for failing to adequately manage your organization’s sales tax obligations can be significant - from assessments, to forgone recoveries and cash flow implications, to customer or reputational risk.
US corporate tax
The United States has a very complex and regulated tax environment, that may undergo significant changes. Cross-border tax issues could become even more challenging for Canadian businesses looking for growth and prosperity in the biggest economy in the world.
Cross-border personal tax
In an increasingly flexible world, moving across the border may be more viable for Canadians and Americans; however, relocating may also have complex tax implications.
International
While there is great opportunity for businesses looking to expand globally, organizations are under increasing tax scrutiny. Regardless of your company’s size and level of international involvement—whether you’re working abroad, investing, buying and selling, borrowing or manufacturing—doing business beyond Canada’s borders comes with its fair share of tax risks.
Transfer pricing
Transfer pricing is a complex area of corporate taxation that is concerned with the intra-group pricing of goods, services, intangibles, and financial instruments. Transfer pricing has become a critical governance issue for companies, tax authorities and policy makers, and represents a principal risk area for multinationals.
Succession & estate planning
Like many private business owners today, you’ve spent your career building and running your business successfully. Now you’re faced with deciding on a successor—a successor who may or may not want your direct involvement and share your vision.
Tax Reporting & Advisory
The financial and tax reporting obligations of public markets and global tax authorities take significant resources and investment to manage. This requires calculating global tax provision estimates under US GAAP, IFRS, and other frameworks, and reconciling this reporting with tax compliance obligations.

Related insights:

Budget 2023 Summary: Prince Edward Island Budget 2023

1 min read | 26 May 2023

Our tax advisors highlight key insights from PEI Budget 2023. Read our full summary.

Advisory

A differentiated approach relevant to the unique opportunities and challenges you are faced with today. See Overview

Transactions
Our transactions group takes a client-centric, integrated approach, focused on helping you make and implement the best financial strategies. We offer meaningful, actionable and holistic advice to allow you to create value, manage risks and seize opportunities. It’s what we do best: help great organizations like yours grow and thrive.
Restructuring
We bring a wide range of services to both individuals and businesses – including shareholders, executives, directors, lenders, creditors and other advisors who are dealing with a corporation experiencing financial challenges.
Forensics
Market-driven expertise in investigation, dispute resolution and digital forensics
Cybersecurity
Viruses. Phishing. Malware infections. Malpractice by employees. Espionage. Data ransom and theft. Fraud. Cybercrime is now a leading risk to all businesses.
Consulting
Running a business is challenging and you need advice you can rely on at anytime you need it. Our team dives deep into your issues, looking holistically at your organization to understand your people, processes, and systems needs at the root of your pain points. The intersection of these three things is critical to develop the solutions you need today.
Creditor updates
Updates for creditors, limited partners, investors and shareholders.

Related insights:

Advisory Four ways to boost your whistleblower program's effectiveness

6 min read | 26 May 2023

Whistleblower program is an affordable fraud detection tool. There are four ways to ensure your whistleblower program effective.

Cloud Accounting

Cloud accounting is an innovative new service from Grant Thornton that allows you and your Grant Thornton advisor to collaborate seamlessly. See Overview

Indigenous Services

Legacy is not only about honouring the past—it’s also about looking forward and continuing to build upon those values, traditions, and achievements to create... See Overview

Environmental, social, and governance (ESG) and sustainability

Our team is made up of multi-disciplinary, dedicated advisors that can assist your business with a range of ESG considerations, including strategy development,... See Overview

Family Business Services

Our experienced Family Enterprise Advisors (FEAs) can help establish harmony among all stakeholders in your family business by maintaining a neutral position... See Overview

Agriculture

Farming is a lifestyle and a legacy. It’s the heartbeat of your family and the backbone of our communities. Success grows from hard work, patience and... See Overview

Related insights:

ASPE Sec. 3041 Agriculture Understanding and applying the new ASPE Section 3041 Agriculture

The Canadian Accounting Standards Board (AcSB) has released new guidance on recognizing, measuring and disclosing biological assets and the harvested products of bio assets.

16 Feb 2022
Tax alert Agricultural Clean Technology Program

The Agricultural Clean Technology Program will provide financial assistance to farmers and agri-businesses to help them reduce greenhouse gas (GHG) emissions.

17 Jun 2021
Tax alert ACT Program – Research and Innovation Stream explained

The ACT Research and Innovation Stream provides financial support to organizations engaged in pre-market innovation.

17 Jun 2021
Tax alert ACT Program – Adoption Stream explained

The ACT Adoption Stream provides non-repayable funding to help farmers and agri-business with the purchase and installation of clean technologies.

17 Jun 2021

Cannabis

Whatever your goal, the experts at Grant Thornton are ready to work with you to map out a plan for success. As members of the Global Cannabis Partnership... See Overview

Charities & not-for-profit

Here’s to the change-makers, the believers and the community-builders. Charities and not-for-profit organizations truly stand apart from the crowd. In today’s... See Overview

Real Estate And Construction

In the world of real estate and construction, timing is everything. From acquisition to exit—and every point in between—you need high-quality information and... See Overview

Builders And Developers
Every real estate project starts with a vision. We help builders and developers solidify that vision, transform it into reality, and create value.
Rental Property Owners And Occupiers
In today’s economic climate, it’s more important than ever to have a strong advisory partner on your side.
Real Estate Service Providers
Your company plays a key role in the success of landlords, investors and owners, but who is doing the same for you?

Related insights:

Real estate and construction 2023 real estate outlook: A year of cautious optimism

2 min read | 15 Mar 2023

As the Canadian economy confronts conditions not seen in decades, the real estate industry is challenged with an uncertain landscape in 2023.

Energy and natural resources

It’s not business as usual within the energy and natural resources sectors. Change has become constant and disruptive, in part a result of consolidation and... See Overview

Mining
There’s no business quite like mining. It’s volatile, risky and complex – but the potential pay-off is huge. You’re not afraid of a challenge: the key is finding the right balance between risk and reward. Whether you’re a junior prospector, a senior producer, or somewhere in between, we’ll work with you to explore, discover and extract value at every stage of the mining process.
Oil & gas
The oil and gas industry is facing many complex challenges, beyond the price of oil. These include environmental issues, access to markets, growing competition from alternative energy sources and international markets, and a rapidly changing regulatory landscape, to name but a few.

Financial Services

Financial Services See Overview

Manufacturing & distribution

Canadian manufacturers seeking to grow their businesses must address common issues, including limited access to finance, high raw material costs, inflexible... See Overview

Private equity

To acquire high-quality assets in today’s unprecedented competitive global market, private equity firms and their portfolio companies must be increasingly... See Overview

Professional services

Professional services firms face a dual challenge: anticipating and managing change not only for your clients, but also for your business. In today’s... See Overview

Public companies

Public companies See Overview

Private business

Your hard work has taken your business where it is today. Having a clear vision, a strong team and a solid plan are all key to your continued success.... See Overview

Public sector

Public sector See Overview

Power & Utilities

At Grant Thornton, we have the real-world experience and knowledge that can help you in considering all of your strategic alternatives. Whether it be managing... See Overview

I joined Grant Thornton in 2011 and was pleased to become a partner in the firm’s Accounting and Business Assurance practice. I am the Southern Ontario lead for Grant Thornton’s Private Business Services, and I was appointed Chair of the National Partnership Board in July 2017.

I focus on providing sound business advice to clients, including strategy, financing, taxation, divestiture planning, acquisitions, succession planning and visioning.

In 2016 I achieved my Family Enterprise Advisory designation. I specifically enjoy working with family-led businesses to plan for generational transition, all while maintain harmony among family members.

I reside in Ancaster ON and personally enjoy researching my family roots while travelling through Europe and especially Italy.

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Lou Celli

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