Prepared and filed monthly and annual tax declarations for SAT and SATEG, processed bank transfers, and created invoices and payment complements.

Managed accounting records in Contpaq i (journal, income, expense, and monthly provision entries), performed bank reconciliations and account clean-ups, reconciled IVA for DIOT, supported IVA refund requests, issued checks, managed petty cash, recorded income and applied collections, handled invoicing (CFDI, XML, payment complements, cancellations), processed monthly closings, issued and stamped weekly payroll, prepared interbank payroll layouts, processed bi-weekly payroll with service companies, generated weekly attendance reports, maintained personnel files, processed REPSE, managed IMSS filings (highs, lows, salary modifications), calculated and issued vacation, severance, and Christmas bonus receipts, issued PTU receipts, processed personal loans for employees, followed up on sick leave and work accidents, tracked purchases, controlled supplier payments, managed supplier credit applications, supported sales and accounts receivable, created internal control formats, provided customer service, archived documents, processed point-of-sale transactions and cuts, and issued CFDI SATEG.

Filed monthly and informative declarations on SAT and SATEG portals, handled electronic invoicing, managed employee files, processed IMSS filings (highs, lows, salary modifications), prepared IMSS risk premium, calculated vacations and severance, registered SUA incidents, prepared weekly payroll, archived documents, and provided customer service.

Used SAP system, provided customer service, prepared and followed up on quotations, managed invoicing, logistics, prepared acknowledgment receipts, managed inventories, and controlled client files.

Performed accounting entries in Contpaq i for income, expenses, and daily transactions, and carried out bank reconciliations.

Assisted clients and suppliers, prepared checks, processed interbank transfers for supplier payments, managed accounting records in COI and Contpaq i (daily, income, expense, provisions), performed bank reconciliations, controlled petty cash, processed general cash cuts, maintained personnel files, prepared internal forms for IMSS filings (highs, lows, salary modifications), supported labor contract preparation, processed digital signature renewals, drafted official letters and managed archive, controlled payroll receipt signatures, assisted in overdue portfolio collection, prepared documentation for student medical expense reimbursements, generated weekly and bi-weekly attendance reports, and processed payroll for approximately 100 employees.

Provided customer service, controlled client files, managed tax payments and monthly declarations, performed accounting entries, conducted bank reconciliations, prepared working papers for tax payments, handled SUA (highs, lows, salary modifications), calculated IMSS payments, controlled client payrolls, prepared official letters, managed notices to the Conciliation and Arbitration Board, drafted lease agreements, scheduled appointments at SAT and IMSS, presented IMSS work risk premiums, and supported taxpayer registration.

Assisted in reviewing compliance with standards required by the Secretaría del Trabajo y Previsión Social during professional internships to conclude studies.