Social Security, IMSS & INFONAVIT Lawyers in Mexico City

Social Security, IMSS & INFONAVIT Attorneys for Employers in Mexico

At Zozaya e Ibáñez, our team of Social Security Lawyers focuses exclusively on representing and advising employers in matters involving the Mexican Social Security Institute (IMSS) and the National Workers’ Housing Fund Institute (INFONAVIT).

We help businesses prevent legal contingencies, strengthen regulatory compliance, optimize employer obligations, and protect their interests against governmental actions, tax assessments, audits, and administrative proceedings initiated by IMSS and INFONAVIT.

By combining extensive experience in Labor & Employment Law, Tax Law, and Social Security Law, we deliver comprehensive legal solutions tailored to businesses across every industry.

Employer Social Security Legal Services

We provide preventive, advisory, and litigation services covering every aspect of employer obligations before IMSS and INFONAVIT.

Our legal services include:
• IMSS compliance advisory
• INFONAVIT compliance
• Employer audits
• Social Security litigation
• Administrative defense
• Payroll compliance
• REPSE compliance
• SIROC compliance
• Employer tax assessments
• Administrative appeals
• Nullity actions
• Regulatory compliance programs

Our objective is to reduce legal exposure while allowing businesses to focus on growth and operational efficiency.

IMSS Employer Compliance

Our attorneys advise employers regarding full compliance with the Mexican Social Security Law, helping companies reduce the risk of tax assessments, penalties, contribution differences, and employer liabilities.

Our services include:
• Social Security legal consulting
• Employer compliance programs
• Payroll tax contribution analysis
• Employer contribution calculations
• Occupational Risk Insurance classification
• Annual risk premium adjustments
• Salary Base Contribution (SBC) analysis
• Review of employee benefits for IMSS purposes
• Employer regularization programs
• Preventive workforce restructuring

Our preventive approach minimizes the likelihood of costly disputes with the Social Security authorities.

Defense Against IMSS Tax Assessments

Our attorneys have extensive experience defending employers against actions initiated by IMSS.

We regularly represent businesses in matters involving:
• IMSS tax assessments
• Constitutional capital assessments (Capitales Constitutivos)
• Assessment notices
• Employer contribution differences
• IMSS administrative penalties
• Administrative Collection Proceedings
• Asset seizures
• Payment demands
• Cancellation of tax assessments

We develop sophisticated legal strategies to challenge unlawful administrative resolutions through administrative appeals and Nullity Actions before the Federal Administrative Court of Mexico.

IMSS Audits & Workplace Inspections

Proper legal representation during an IMSS inspection can significantly reduce financial exposure.

Our attorneys represent employers throughout:
• Workplace inspections
• Desk audits
• Employer audits
• Information requests
• Tax examination procedures
• Compliance inspections

Our priority is to protect our clients’ procedural rights while minimizing operational and financial risks throughout every stage of the administrative process.

Social Security Compliance Audits

Preventive legal audits allow businesses to identify compliance risks before they are detected by government authorities.

Our Social Security audits include:
• Salary Base Contribution (SBC) review
• SUA compliance review
• Employee registration verification
• Disability compliance
• Occupational risk assessments
• Employee benefits review
• Employment structure analysis
• Outsourcing compliance
• REPSE compliance review
• SIROC compliance
• Documentation review

These preventive audits significantly reduce the likelihood of future assessments, penalties, and administrative disputes.

INFONAVIT Employer Advisory Services

Our attorneys provide comprehensive legal representation regarding employer obligations before INFONAVIT.

Our services include:
• Responses to government information requests
• Defense against administrative penalties
• Challenges to employer assessments
• Employer audits
• Housing loan contribution reviews
• Employer regularization
• Tax audit representation
• Administrative litigation

We help businesses maintain full compliance while protecting their financial interests.

SIROC Compliance for Construction Projects

Construction companies, developers, and contractors must comply with numerous Social Security reporting obligations under the SIROC system.

Our attorneys advise clients regarding:
• Construction project registrations
• Construction notices
• Project modifications
• Project completion filings
• IMSS construction audits
• Defense against IMSS assessments
• Preventive compliance strategies

Our legal guidance helps construction companies minimize regulatory exposure throughout every stage of a project.

REPSE Compliance

The proper implementation of REPSE has significant implications in Labor Law, Tax Law, and Social Security Law.

Our attorneys assist companies with:
• REPSE compliance
• Specialized service agreements
• Documentation reviews
• Preventive compliance audits
• Regulatory compliance strategies
• Administrative defense

We work proactively to ensure our clients remain compliant while minimizing legal and tax risks.

Administrative Litigation & Employer Defense

Our litigation team represents employers before administrative authorities and federal courts in matters involving:
• Nullity Actions
• Administrative Appeals
• Collection Proceedings
• Cancellation of Tax Assessments
• Challenges to Administrative Penalties
• IMSS and INFONAVIT audit disputes

Our litigation strategy focuses on protecting our clients’ assets through technically sound and business-oriented legal solutions.

Why Choose Zozaya e Ibáñez?

At Zozaya e Ibáñez, we understand that an effective Social Security, IMSS, and INFONAVIT compliance strategy does more than reduce legal risks—it also creates measurable financial and operational advantages for businesses.

Our attorneys work closely with Human Resources, Finance, Payroll, Tax, and Executive Management teams to develop preventive legal strategies that strengthen compliance, minimize liabilities, and allow companies to focus on their long-term business objectives.

We are recognized for providing:
• Experienced IMSS & INFONAVIT Attorneys dedicated to employer representation.
• Preventive legal strategies that go beyond litigation.
• Comprehensive legal services integrating Labor Law, Tax Law, Corporate Law, and Social Security Law.
• Representation during audits, inspections, tax assessments, and administrative proceedings.
• Tailored legal solutions for domestic and international companies.
• Business-focused legal advice designed to reduce operational and financial risk.
• Fast response times and personalized legal support.

Our mission is to become a long-term legal partner, helping employers navigate Mexico’s complex Social Security and labor compliance framework with confidence.

Protect Your Business with Experienced Social Security Lawyers

If your company is facing an IMSS audit, an INFONAVIT assessment, a tax assessment, an IMSS workplace inspection, or needs assistance optimizing employer Social Security contributions, REPSE compliance, or implementing preventive compliance strategies, Zozaya e Ibáñez is prepared to provide sophisticated legal representation.
Our attorneys work proactively to protect employers from unnecessary liabilities while ensuring full compliance with Mexican labor, tax, and Social Security regulations.
Contact our Social Security Law team today to learn how we can help your business reduce legal risks, strengthen regulatory compliance, and safeguard its long-term success.

Client Testimonials

Chief Executive Officer – Manufacturing Company
“As the CEO of a manufacturing company, we needed a law firm that truly understood the interaction between IMSS regulations and REPSE compliance. Zozaya e Ibáñez helped us regularize our operations, strengthen our compliance program, and prevent future liabilities. Their technical expertise and personalized service were outstanding.”

Owner – Professional Services Company
“We received an IMSS assessment that represented a significant financial risk for our business. The attorneys at Zozaya e Ibáñez developed a solid legal strategy, handled the entire administrative process, and successfully protected our interests. They are true specialists in employer defense.”

Human Resources Director
“The firm’s guidance regarding Social Security compliance was instrumental in reviewing our Salary Base Contribution calculations and employer obligations. Today we operate with greater legal certainty and significantly lower IMSS exposure.”

Chief Financial Officer
“We were looking for attorneys who understood both IMSS and INFONAVIT from a financial perspective. Zozaya e Ibáñez helped us improve our internal processes and avoid future contribution discrepancies. I highly recommend their services.”

Partner – Construction Company
“In the construction industry, proper compliance with IMSS and SIROC regulations is essential. Zozaya e Ibáñez advised us from the very beginning of the project and provided exceptional legal guidance throughout the entire construction process.”

Chief Executive Officer
“Thanks to the support of Zozaya e Ibáñez, we successfully completed an IMSS audit without complications. From our first meeting, their attorneys demonstrated extensive knowledge of Mexican Social Security legislation and defended our company with professionalism.”

Owner – Logistics Company
“They advised us on every aspect of REPSE compliance and specialized service contracting. Their preventive legal strategy allowed us to comply with all applicable regulations while minimizing labor and tax risks.”

Administrative Director
“Before working with Zozaya e Ibáñez, we had numerous concerns regarding our employer obligations before IMSS. Today our internal compliance procedures are significantly stronger thanks to their legal recommendations and preventive audits.”

Chief Executive Officer – Commercial Company
“What I value most is their preventive approach. Rather than waiting for legal problems to arise, they reviewed our Social Security compliance, identified areas for improvement, and significantly reduced our legal exposure.”

Technology Company Executive
“Their expertise in REPSE compliance proved invaluable to our business. Throughout the entire compliance process, they provided practical legal solutions with a clear understanding of our commercial objectives.”

Human Resources Director
“The preventive IMSS audit conducted by Zozaya e Ibáñez identified compliance issues we had not detected internally. We corrected our Salary Base Contribution calculations in time and successfully avoided potential tax assessments.”

Owner – Transportation Company
“When our company received an IMSS workplace inspection, we immediately contacted Zozaya e Ibáñez. They represented us throughout the administrative process and defended our rights as an employer with exceptional professionalism.”

Chief Executive Officer
“It is difficult to find attorneys who truly understand the intersection of Labor Law, Social Security Law, and Tax Law. Zozaya e Ibáñez possesses outstanding expertise in all three areas, providing business owners with tremendous confidence.”

Finance Director
“We retained Zozaya e Ibáñez to review our REPSE and IMSS obligations. Their legal analysis was thorough, allowing us to implement stronger internal controls that now provide greater legal certainty. An excellent investment for any business.”

Chairman of the Board
“After working with several law firms, we decided to entrust all of our Social Security, IMSS, and INFONAVIT matters to Zozaya e Ibáñez. Their technical expertise, personalized attention, and preventive approach make them a true strategic legal partner for any company.”

Client Testimonials Disclaimer
The testimonials presented above are based on interviews conducted with clients of the firm and reflect their independent opinions regarding the legal services provided by Zozaya e Ibáñez.