Accounting and Tax Compliance
At Estudio Legal & Finanzas MX, we provide accounting services with a strategic approach, integrating regulatory compliance, internal control, and support during reviews conducted by tax authorities. We develop reliable alternatives that strengthen financial management and corporate transparency.
We advise on International Financial Reporting Standards (IFRS/NIIF), from the initial and subsequent diagnosis, impact measurement, and adoption, as well as their convergence with Mexican Financial Reporting Standards (NIF). We implement technological tools for reconciliations between local and international frameworks, ensuring traceability and consistency.
We manage compliance through the determination and filing of federal and local taxes, the preparation and submission of informational returns, electronic accounting, and interaction with internal and external oversight and supervisory bodies.
Accounting and Financial Advisory, Consulting, and Planning
We advise with a comprehensive perspective and execute operationally to ensure that every record and obligation is supported by the applicable regulatory framework, documentary evidence, and effective controls.
Technical Advisory on IFRS/NIIF and NIF
IFRS/NIF Alignment
Recognition and measurement criteria, disclosures, mappings, and reconciliations between frameworks.
We align IFRS/NIF
Recognition and measurement criteria, disclosures, mappings and reconciliations between frameworks.
Design and Updating of Accounting Policies and Procedures
Manuals, role definitions, and accounting judgment logs.
Preparation of Financial Studies and Memoranda
Estimates, impairment, provisions, financial instruments, deferred taxes, consolidation, etc.
Definition and Structuring of Accounting Recording Schemes
Charts of accounts, rules, automations, and data quality controls.
Preparation of Financial Statements and Reports
For specific purposes (boards of directors, banking, transactions, accounting due diligence).
Operational Support (FAAS) and Reporting
Management of Monthly and Annual Closings
Consolidation packages and data packs for management and board members.
Coordination with External Auditors
Audit readiness, PBC submissions, handling of requests, and ensuring consistency of disclosures.
Accounting and Reporting Co-sourcing / Outsourcing
Provided when operational continuity is required.
Tax Compliance and Tax Governance
Design of calendars, checklists, and obligation matrices
Roles, policies, and performance dashboards (KPIs).
Preparation and review of periodic and informational tax filings
Monitoring regulatory changes and administrative criteria.
Implementation of controls for CFDI, electronic accounting, and the tax mailbox
Organization of repositories and traceable evidence.
Tax Advisory, Consulting, and Tax Planning
Implementation of automations
For data uploads, reconciliations, validations, and audit trails.
Development of dashboards
Financial–tax dashboards and metrics for risk and performance monitoring.
Integramos soluciones “tax-tech”
We manage adoption in coordination with the operational team.
Compliance and Operations with Authorities Tax Administration Service (SAT)
SAT-related procedures
We manage RFC matters, e.firma, use of the Tax Portal, and the activation/administration of the Tax Mailbox (Buzón Tributario).
Electronic accounting
We structure and validate electronic accounting in accordance with applicable tax regulations.
Social Security and Local Agencies
Social Security Procedures
We handle matters before IMSS, INFONAVIT and INFONACOT, including registrations and deregistrations, SUA filings, contribution reconciliations, and responses to official requirements.
Payroll tax and local levies
We calculate and file payroll tax and other applicable local taxes.
Banking processes and electronic invoicing
We establish related processes, including bank account opening and electronic invoicing, covering process setup and internal controls.
Audit, Internal Control and Reviews
Risk assessment and internal control maturity (COSO/ICFR)
Control matrices, testing of controls and remediation.
Implementation of specific preventive controls
Periodic reconciliations, inventories, provisions, integrations and supporting documentation for journal entries.
Support during reviews and audits
Preparation of working papers, response to information requests and electronic reviews; coordination with legal teams when required.
Audit readiness
We prepare our clients for internal and external audits and provide follow-up through the closure of findings.
What Sets Us Apart
Business-focused rigor
Decisions that safeguard cash flow and compliance.
End-to-end traceability
Repositorios y trail de auditoría “audit-ready”.
Governance and control
COSO/ICFR, KPIs, and compliance matrices.
Practical technology
Automations, validations, and dashboards.
Frictionless closing
Data packs and coordination with the auditor.
Operational flexibility
Co-/outsourcing based on peaks and operational needs.
NIIF/NIF Proactivity
Ongoing updates (incl. NIIF 18).
Do you need support in accounting and tax compliance?
Our team combines accounting, tax, technological, and legal expertise to strengthen internal controls, reduce risk exposure, and ensure sustainable tax compliance.
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