Step-by-Step Guide to Registering for Monotributo in Buenos Aires, Argentina

Registering for Monotributo in Argentina, specifically in Buenos Aires, involves several steps. The Monotributo system is a simplified tax regime for small businesses and self-employed individuals. Please note that regulations and procedures may change, so it’s essential to check with the relevant authorities or consult a professional for the most up-to-date information. Here’s a general step-by-step guide:

Determine Eligibility for Argentine Monotributo

Before you start the registration process, ensure that you meet the eligibility criteria for Monotributo. Typically, this includes having an annual income within the Monotributo category limits and not being involved in certain excluded activities.
Monotributo categories and their annual income limits as of my last update:

1. Category A: Up to ARS 370,000 per year.

2. Category B: Up to ARS 550,000 per year.

3. Category C: Up to ARS 770,000 per year.

4. Category D: Up to ARS 1,100,000 per year.

5. Category E: Up to ARS 1,450,000 per year.

6. Category F: Up to ARS 1,800,000 per year.

7. Category G: Up to ARS 2,200,000 per year.

8. Category H: Up to ARS 2,750,000 per year.

9. Category I: Up to ARS 3,300,000 per year.

10. Category J: Up to ARS 3,850,000 per year.

11. Category K: Up to ARS 4,500,000 per year.

12. Obtain a CUIT (Clave Única de Identificación Tributaria):
If you don’t already have a CUIT, you’ll need to obtain one. This is your tax identification number. You can apply for it at an AFIP (Administración Federal de Ingresos Públicos) office or through their website.

13. Collect Required Documents:Gather the necessary documents, including:

– Photocopy of your ID or passport.

– Proof of address (utility bill or rental agreement).

– Information about your business activities and location.

– Bank account information.

14. Choose a Monotributo Category:
Determine which Monotributo category is suitable for your business based on your expected annual revenue and other factors. Categories are labeled from A to K, with each having different income limits and monthly payments.

15. Complete the Online Registration:
Visit the AFIP website ( and navigate to the Monotributo section. Follow the instructions for online registration, providing all the required information. You’ll need to create an AFIP account if you don’t have one.

16. Pay the First Month’s Fee:
After completing the online registration, you’ll receive a payment voucher (Volante Electrónico de Pago or VEP) for the first month’s Monotributo fee. Pay this fee at a bank or through the online payment system.

17. Obtain a Monotributo Certificate:
Once your payment is confirmed, you’ll receive a Monotributo certificate. This certificate serves as proof of your enrollment in the Monotributo system.

18. Comply with Ongoing Obligations:
As a Monotributo taxpayer, you’ll have ongoing obligations, including monthly payments and annual renewals. Make sure to pay your monthly fees on time and complete the annual renewal process.

19. Keep Records:
Maintain accurate records of your income and expenses to ensure compliance with tax regulations.

20. Seek Professional Advice:
It’s advisable to consult with an accountant or tax professional to ensure you are meeting all your tax obligations and to get guidance tailored to your specific situation.

Remember that tax regulations can change, and requirements may vary depending on your specific circumstances. It’s essential to stay informed about any updates or changes to the Monotributo system in Argentina.


Understanding Monotributo and SAS

Monotributo and SAS (Sociedad por Acciones Simplificada) are two different tax and legal structures used by businesses in some countries, primarily in Latin America. They serve different purposes and have distinct characteristics:

Monotributo (Monotributista)

Monotributo is a simplified tax regime used in countries like Argentina, Uruguay, and Mexico, among others.
It is designed for small businesses, sole proprietors, and freelancers.
Monotributistas pay a fixed monthly or quarterly tax, which is determined based on their revenue, activity, and location.
They have a simplified reporting and tax payment process, making it easier for small businesses to comply with tax obligations.
There are usually limitations on annual revenue and the types of activities that can be registered under Monotributo.
Monotributistas may not be able to claim certain tax deductions or credits available to businesses under other tax regimes.
It is generally suitable for small businesses with relatively low revenue and straightforward operations.

SAS (Sociedad por Acciones Simplificada)

SAS is a simplified form of a corporation or company structure used in several Latin American countries, such as Colombia and Peru.
It is a legal entity separate from its owners, providing limited liability to shareholders, which means their personal assets are generally protected from business debts.
SAS is designed to simplify the process of starting and operating a company, with fewer bureaucratic requirements compared to traditional corporate structures.
It allows for a flexible distribution of profits and management structure, making it suitable for various business types, including startups and small to medium-sized enterprises (SMEs).
SAS is typically subject to regular corporate income tax, and the tax treatment may vary depending on the country’s tax laws.
SAS is often chosen by businesses looking for the advantages of a legal entity structure while minimizing administrative and legal complexities.


In summary, Monotributo is a simplified tax regime primarily for individual small businesses and freelancers, while SAS is a simplified legal entity structure used for forming companies, providing limited liability to shareholders. The choice between the two depends on factors such as the size and nature of the business, the applicable laws in the country, and the specific goals of the business owners. It’s important to consult with a local accountant or legal expert to determine the most appropriate option for your particular situation and jurisdiction.