Quebec directory

Tax Law Firms in Montréal, Quebec

35 law firms.

What does a tax lawyer do?

Tax lawyers advise on income tax, GST/HST, disputes with the Canada Revenue Agency, and the tax side of business deals and estate planning, and they represent clients in tax appeals.

Income tax is mostly federal, administered by the Canada Revenue Agency, with provincial tax layered on top for certain matters.

How do you choose the right firm in Montréal?

Ask whether the firm handles planning, disputes, or both, and how it'll work with your accountant so advice and filings stay aligned.

LawOnline lists 35 tax law firms in Montréal, Quebec, with offices in Pointe-Claire and Kirkland. You can confirm any lawyer's standing on the Barreau du Québec directory. Browse the tax law firms in Montréal below.

Altro LLP

9 lawyers · Est. 1988

Altro LLP is a cross-border tax and estate planning firm founded in 1988 that serves Canadian and American clients from offices in Montreal, Toronto, Calgary, and Vancouver as well as several U.S. Sun Belt states. Its…

Tax LawTax LawWills, Estates & TrustsWills, Estates & TrustsReal Estate LawReal Estate LawBusiness & Corporate LawBusiness & Corporate Law

BA Legal

1 lawyer

BA Legal is a boutique tax, business, and real estate law firm in Pointe-Claire, Quebec, founded by Bardia Afzali. It advises start-ups, entrepreneurs, business owners, high-net-worth individuals, real estate investor…

Tax LawTax LawBusiness & Corporate LawBusiness & Corporate LawReal Estate LawReal Estate Law

BCF Avocats d'affaires (BCF Business Law) is a business law firm headquartered in Montreal, with an additional office in Quebec City and an affiliate office in Paris. The firm says it has more than 560 people, includi…

Employment & Labour LawEmployment & Labour LawReal Estate LawReal Estate LawTax LawTax LawIntellectual PropertyIntellectual Property

BDG Lawyers/Avocats is a Montreal firm, with associated offices in Rennes and Paris, that has advised French and Canadian businesses on cross-border expansion for close to 30 years. It practises corporate, tax, immigr…

Business & Corporate LawBusiness & Corporate LawTax LawTax LawImmigration LawImmigration LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute Resolution

Benabou Avocat

1 lawyer

Benabou Avocat is a downtown Montreal law firm practising commercial law, real estate law, civil law and litigation, estate and family law, tax litigation, intellectual property and employment law. Its lawyer is also …

Business & Corporate LawBusiness & Corporate LawReal Estate LawReal Estate LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute ResolutionFamily LawFamily Law

Bennett Jones LLP

16 lawyers

Bennett Jones LLP is a national Canadian business law firm with more than a century of history, grown from a ten-lawyer prairie town office to a firm with offices in Calgary, Edmonton, Montreal, Ottawa, Toronto, Vanco…

Business & Corporate LawBusiness & Corporate LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute ResolutionTax LawTax LawReal Estate LawReal Estate Law

Blanchard Avocats Inc.

2 lawyers · Est. 2005

Blanchard Avocats inc. is a boutique law firm with offices in Montreal and Quebec City, founded in 2005 by Normand Blanchard. It focuses on corporate, commercial and tax law, and runs a dedicated business-succession d…

Business & Corporate LawBusiness & Corporate LawTax LawTax Law

Cain Lamarre

277 lawyers · Est. 1877

Cain Lamarre is a full-service Québec law firm founded in 1877, with about 300 legal professionals across 15 offices spanning the province, from Montréal and Québec City to the Saguenay-Lac-Saint-Jean, Abitibi-Témisca…

Business & Corporate LawBusiness & Corporate LawConstruction LawConstruction LawEmployment & Labour LawEmployment & Labour LawFamily LawFamily Law

De Grandpré Chait

18 lawyers · Est. 1928

De Grandpré Chait is a Montreal law firm founded in 1928, originally focused on real estate law. The firm now advises on construction, family, business, tax, real estate, public real estate, estates, insolvency and re…

Construction LawConstruction LawFamily LawFamily LawBusiness & Corporate LawBusiness & Corporate LawTax LawTax Law

De Louya Markakis Avocats is a Montreal law firm practising tax law, business and commercial law, civil and commercial litigation, estate law, real estate law and intellectual property. The firm says it launched one o…

Tax LawTax LawBusiness & Corporate LawBusiness & Corporate LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute ResolutionWills, Estates & TrustsWills, Estates & Trusts

Dunton Rainville

138 lawyers · Est. 1954

Dunton Rainville is a full-service Quebec law and notarial firm founded in 1954, with roughly 300 staff including about 135 avocats and notaires. It has offices in Montréal, Laval, Saint-Hubert (Longueuil), Joliette, …

Business & Corporate LawBusiness & Corporate LawTax LawTax LawReal Estate LawReal Estate LawConstruction LawConstruction Law

Evolex

2 lawyers

Evolex is a Montreal boutique firm specializing in tax law and tax litigation, representing individuals and small and medium-sized businesses in disputes with the Canada Revenue Agency and Revenu Québec. Founded by Ri…

Tax LawTax LawBankruptcy & InsolvencyBankruptcy & Insolvency

EY Law LLP

63 lawyers

EY Law LLP is a national Canadian law firm affiliated with Ernst & Young LLP, with lawyers based in Toronto, Calgary, Edmonton, Montreal, Ottawa and Vancouver. The firm practises business law, business immigration, em…

Employment & Labour LawEmployment & Labour LawTax LawTax Law

FOLDIAK-Lawyers

1 lawyer

FOLDIAK-Lawyers is a Montreal business law firm led by Maître Jonathan Foldiak, a member of the Quebec bar since 1981. The firm advises businesses and individuals across Canada and internationally on business law, mer…

Business & Corporate LawBusiness & Corporate LawReal Estate LawReal Estate LawTax LawTax LawWills, Estates & TrustsWills, Estates & Trusts

Klyden Legal

2 lawyers

Klyden Legal (formerly Fortin Simard Avocats Fiscalistes) is a Quebec business law firm advising companies from startups to multinationals. The team works in corporate and tax law, mergers and acquisitions, contract l…

Business & Corporate LawBusiness & Corporate LawTax LawTax Law

Lacombe Avocats

1 lawyer

Lacombe Avocats is a Montreal law firm offering legal services and guidance across business law, real estate, co-ownership, estates and estate planning, taxation, bankruptcy and insolvency, employment, immigration, fa…

Business & Corporate LawBusiness & Corporate LawReal Estate LawReal Estate LawWills, Estates & TrustsWills, Estates & TrustsTax LawTax Law

Laguerre Fiscaliste inc.

1 lawyer · Est. 2011

Laguerre Fiscaliste is a Montreal tax practice founded by lawyer Extra Junior Laguerre in 2011, offering tax litigation and advisory services to entrepreneurs and businesses, including representation in disputes with …

Tax LawTax Law

Langlois Avocats

30 lawyers

Langlois is one of Quebec's largest independent law firms, with more than 325 people including over 175 legal professionals across offices in Montréal and Québec City. Practising for more than a century, the firm advi…

Business & Corporate LawBusiness & Corporate LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute ResolutionEmployment & Labour LawEmployment & Labour LawReal Estate LawReal Estate Law

Lavery de Billy

21 lawyers

Lavery de Billy is a Quebec law firm whose family law team was named among Canada's top family law firm teams by Canadian Lawyer in 2026. The firm has been expanding its use of artificial intelligence in legal practic…

Tax LawTax Law

LJT Lawyers

66 lawyers

LJT Lawyers (LJT Avocats) is a Montréal business law firm with around 76 lawyers, notaries and legal professionals covering business, tax, real estate, litigation, family law and intellectual property. It works with c…

Business & Corporate LawBusiness & Corporate LawReal Estate LawReal Estate LawEmployment & Labour LawEmployment & Labour LawTax LawTax Law

Mercier Tax Law

1 lawyer

Mercier Tax Law is a Montréal boutique tax law practice run by Mtre Julien Mercier, a member of the Barreau du Québec. The firm represents individuals and corporations in income tax, GST/QST and source-deduction matte…

Tax LawTax Law

Michaud Giannetti Avocats / Lawyers is a business law firm with offices in Blainville and Montreal. The firm focuses on corporate and commercial law, civil and commercial litigation, taxation, and real estate, and ser…

Business & Corporate LawBusiness & Corporate LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute ResolutionTax LawTax Law

Miller Thomson LLP

28 lawyers

Miller Thomson LLP is a national, full-service business law firm with offices across Canada. Its lawyers work in corporate and commercial law, litigation, real estate, construction, insurance, tax, labour and employme…

Business & Corporate LawBusiness & Corporate LawCivil Litigation & Dispute ResolutionCivil Litigation & Dispute ResolutionConstruction LawConstruction LawInsurance LawInsurance Law

monavocat

3 lawyers

Monavocat is a civil and commercial litigation and arbitration firm based in Montreal, Quebec. It helps business clients avoid, assess and resolve disputes, practising in areas including commercial law, employment law…

Civil Litigation & Dispute ResolutionCivil Litigation & Dispute ResolutionEmployment & Labour LawEmployment & Labour LawWills, Estates & TrustsWills, Estates & TrustsBankruptcy & InsolvencyBankruptcy & Insolvency