Accounting & Tax Services for US-Registered International Business
We provide tax compliance, bookkeeping, entity formation and advisory services for US-registered companies owned by international founders.
Accounting & Tax Firm
Comprehensive Tax & Accounting Solutions
End-to-end support for US-registered businesses owned by international founders.
Our Services
LLC Formation
Full-service entity formation. Articles of Organization, EIN, registered agent, and Operating Agreement.
Annual tax return preparation and filing for single-member and multi-member LLCs.
US Federal Tax Returns
Annual Compliance
State annual reports, registered agent renewals, FinCEN BOI reporting, and ongoing compliance to keep your entity in good standing.
Bookkeeping
Dual-currency bookkeeping and financial reporting for businesses operating in US dollars and local currencies.
Tax Advisory & Planning
Strategic tax planning and cross-border advisory to optimize your tax position across US and home-country jurisdictions.
Banking Guidance
Assistance with US business bank account setup and payment processing configuration for international operations.
Comprehensive Tax & Accounting Solutions
End-to-end support for US-registered businesses owned by international founders.
Our Services
LLC Formation
Full-service entity formation in Wyoming, New Mexico, Delaware and Florida. Articles of Organization, EIN, registered agent, and Operating Agreement.
Annual tax return preparation and filing for single-member and multi-member LLCs.
US Federal Tax Returns
Annual Compliance
State annual reports, registered agent renewals, FinCEN BOI reporting, and ongoing compliance to keep your entity in good standing.
Bookkeeping
Dual-currency bookkeeping and financial reporting for businesses operating in US dollars and local currencies.
Tax Advisory & Planning
Strategic tax planning and cross-border advisory to optimize your tax position across US and home-country jurisdictions.
Banking Guidance
Assistance with US business bank account setup and payment processing configuration for international operations.
Our Clients Operate US-Registered Businesses
We work with international professionals who have formed or are forming US entities to serve clients worldwide.
Who We Serve
Software Developers & Engineers
Freelance developers and contractors who invoice US and international clients through their US LLC.
Designers & Creative Professionals
UX/UI designers, graphic designers, and creative professionals providing services to global clients.
Digital Marketing & Consulting
Marketing agencies, consultants, and service providers with US-registered businesses.
Startups & Digital Businesses
Early-stage companies and SaaS businesses incorporated in the US to access global markets and investment.
Our Clients Operate US-Registered Businesses
We work with international professionals who have formed or are forming US entities to serve clients worldwide.
Who We Serve
Software Developers & Engineers
Freelance developers and contractors who invoice US and international clients through their US LLC.
Designers & Creative Professionals
UX/UI designers, graphic designers, and creative professionals providing services to global clients.
Digital Marketing & Consulting
Marketing agencies, consultants, and service providers with US-registered businesses.
Startups & Digital Businesses
Early-stage companies and SaaS businesses incorporated in the US to access global markets and investment.
Built by Accountants, for International Entrepreneurs
We are an accounting and tax consulting firm specializing in serving Latin American professionals and businesses that operate internationally.
Our team combines deep expertise in US federal tax compliance with hands-on knowledge of Latin American tax systems, foreign exchange regulations, and cross-border business structures.
Unlike formation-only services, we provide end-to-end support: from entity creation through ongoing tax compliance, bookkeeping, and strategic advisory. Our clients benefit from having a single firm that understands both US requirements and their home-country obligations.
We serve freelancers, independent contractors, remote workers, startups, and digital businesses across Latin America — with a particular focus on the Argentine market, one of the largest sources of international tech talent.
About the Firm
CPN Evelyn Asmus
Founder & Lead Accountant
CPN Hernan Dalzotto
Tax & Compliance Manager
BBA Fabricio Asmus
Marketing & Communications
THE TEAM
Contact Us
Ready to started? Book a free 30-minute call to discuss your business needs.
Get in Touch
© 2026 Conta Online Consulting LLC - All rights reserved.
20900 NE 30th Ave Ste 410, Aventura FL 33180, US
Colon 78, Paraná (3100), Argentina
office
hours
Monday – Friday: 9:00 AM – 6:00 PM (EST)
Consultations available by appointment
languages
English · Spanish (native)