Tax Law Firms Worldwide (2026)
Find tax law firms worldwide, by country and city.
- Law firms
- 3,306
There are 3,306 tax law firms in 168 countries on Global Law Lists. The largest markets are Brazil (816), United States (814) and Germany (295); the cities with the most firms are Paris (67), Madrid (35) and Belo Horizonte (34). Pick your country or city to compare firms near you, or see tax lawyers with individual profiles.
Ofori Law is a law firm in Mississauga, Ontario, Canada.
Capabilities/Areas:Practice: Tax Law
Address: Mississauga, Canada
State: Ontario
Country: Canada
Oglaw - Oliveira Gonçalves & Guerra Consultores e Advogados is a law firm in Sao Paulo, Brazil.
Capabilities/Areas:Practice: Contract Law
Address: São Paulo, Brazil
State: São Paulo
Country: Brazil
Oksandro Gonçalves Advogados Associados is a law firm in Brazil.
Capabilities/Areas:Practice: Business and Corporate Law
Address: Brazil
Country: Brazil
Okumura Sociedade de Advogados is a law firm in Sao Paulo, Brazil.
Capabilities/Areas:Practice: Contract Law
Address: São Paulo, Brazil
State: São Paulo
Country: Brazil
Olaia & Associados is a law firm in Brazil.
Capabilities/Areas:Practice: Tax Law
Address: Brazil
Country: Brazil
Old Colony Law is a law firm in South Hadley, Massachusetts, United States.
Capabilities/Areas:Practice: Trusts and Estates Law
Address: South Hadley, United States
State: Massachusetts
Country: United States
Old Square Tax Chambers is a law firm in London, Greater London, United Kingdom.
Capabilities/Areas:Practice: Tax Law
Address: London, United Kingdom
State: England
Country: United Kingdom
Oliveira & Antunes Advogados is a law firm in Blumenau, Santa Catarina, Brazil.
Capabilities/Areas:Practice: Litigation
Address: Blumenau, Brazil
State: Santa Catarina
Country: Brazil
Oliveira & Coêlho Sociedade de Advogados is a law firm in Ceará, Brazil.
Capabilities/Areas:Practice: Consumer Protection Law
Address: Ceará, Brazil
State: Ceará
Country: Brazil
Oliveira & Testa is a law firm in Brazil.
Capabilities/Areas:Practice: Consumer Protection Law
Address: Porto Alegre, Brazil
Address: Porto Alegre
State: Rio Grande do Sul
Country: Brazil
Practice area guide
What does a tax lawyer do?
Tax law covers income, corporate, indirect and property taxes, tax planning and structuring, cross-border issues such as double tax treaties and transfer pricing, and disputes and audits with the tax authority. Lawyers work alongside accountants, focusing on legal interpretation, structuring and contentious matters.
How do I choose a tax lawyer?
- Decide whether you need planning or a dispute; ask for experience in that specific kind of work.
- For cross-border matters, ask how the lawyer coordinates with advisers in the other countries involved.
- Bring tax returns, assessments, audit letters and the documents behind the transactions in question.
Where can I find a tax lawyer near me?
Open your country or city: each page lists the law firms there that practise Tax Law, with office addresses and websites, and the nearest firms outside the city. Figures are the number of firms (Updated November 2026).
Tax Lawyers by country
Tax Lawyers by city
Tax lawyer questions
How do I find a tax lawyer near me?
Pick your country or city from the lists on this page: each page shows the tax law firms there with office addresses and websites, and the nearest ones outside the city when few are listed. Most tax lawyer matters are handled by a lawyer licensed where the matter arises.
Is this a ranking?
No. Listings are ordered with network members first; you can sort by name, newest or popularity. Editorial rankings are decided separately, on evidence, by the Global Law Awards.
How can a firm be added to this practice area?
Profiles are added from public records at no cost. A firm that joins the network manages its own profile, chooses its practice areas and can complete verification.
For law firms and lawyers
Is your firm listed?
Firms already in our records are listed at no cost. Claim your profile to manage it, or join the network to add your firm and get verified.