OUR TEAM

Tax Law

Maceira Zayas offers strategic tax counsel to individuals, businesses, nonprofits, and investors navigating Puerto Rico’s and the US' complex tax framework. We provide both local and federal tax insight, ensuring clients maximize incentives, minimize liabilities, and stay compliant.
Executive Summary
Client Success Stories

Structured tax-efficient entry into Puerto Rico for a fintech startup using Act 60 incentives

Assisted multiple nonprofits in obtaining IRS tax-exempt status and Act 60 grants

Represented clients in successful audit defenses before the IRS and Hacienda

Guided U.S.-based investors on opportunity zone structuring for real estate development

The Practice

Navigating the complexities of tax law is a critical concern for businesses and individuals operating in Puerto Rico and engaging with federal tax matters. The intersection of local and federal tax regulations creates a dynamic and challenging environment that demands sophisticated and up-to-date legal counsel.

MZLS is a law firm providing comprehensive tax law services—offering strategic legal tax counseling, meticulous planning under tax law, and robust legal representation to clients seeking to understand and optimize their tax positions within the Puerto Rico and U.S. federal legal frameworks. We understand that effective tax management within legal parameters is essential for financial health and achieving business objectives.

Our team brings a unique blend of experience from both the private and public sectors, including insights into how tax laws are developed and administered. This combined perspective allows us to provide accurate, savvy, and practical legal tax advice tailored to the specific needs of our clients—whether they are local businesses, multinational corporations, individual investors, or entities dealing with cross-border transactions.

We are dedicated to helping you navigate the intricate details of tax law to ensure legal compliance, mitigate legal risks, and capitalize on available opportunities through sound legal strategies in Puerto Rico and federally. We are your legal advisors for tax matters, not your accountants.

SERVICES
Tax Counseling & Advisory
We advise clients on federal and Puerto Rico tax implications of business activities, investments, transactions, and residency planning.
Tax Incentives and Decrees
Our team helps clients apply for and manage Puerto Rico tax incentive programs, including Act 60, and ensures ongoing compliance with decree requirements.
Tax Planning and Structuring
We assist in structuring entities, transactions, and cross-border operations to achieve tax efficiency, mitigate risk, and align with long-term goals.
Tax Compliance
We support clients in meeting federal and Puerto Rico filing requirements and navigating audits, disclosures, and information reporting obligations.
Tax Controversies & Disputes
We represent taxpayers in disputes with Hacienda or the IRS, including audits, assessments, appeals, and litigation.
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Our Impact
Notable Client Achievements

Structured tax-efficient entry into Puerto Rico for a fintech startup using Act 60 incentives

Assisted multiple nonprofits in obtaining IRS tax-exempt status and Act 60 grants

Represented clients in successful audit defenses before the IRS and Hacienda

Guided U.S.-based investors on opportunity zone structuring for real estate development

Designed integrated tax strategies for Act 60 Individual Resident Investors and their trusts

Frequently Asked Questions
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Latest News
See more
Maceira Zayas Authors Puerto Rico Chapter for Chambers International Tax 2026
Simón Carlo Valentín, Esq. CPA.
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May 1, 2026
Local Business Owner, Anthony O. Maceira Zayas, Named to NSBA Leadership Council
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March 12, 2026
MZLS and Honra Host First Puerto Rico Hospitality at NCSL 50th Annual Legislative Summit
Anthony O. Maceira
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September 1, 2025
Mabel Sotomayor Hernández Appointed Exclusive IR Global Member for Administrative Law in Puerto Rico
Mabel Sotomayor
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July 14, 2025
CONSULT

Partner with us

Businesses with operations in Puerto Rico that require legal counsel on commercial, corporate, or transactional matters are welcome to schedule a consultation with Maceira Zayas.
2026 Congressional Calendar
The 2026 Congressional Calendar was officially released! Access the combined House and Senate schedules now — downloadable files with full-year and monthly below.