Complete Guide to RUC Registration for Businesses in Paraguay

Table of Contents


What is it?

RUC, short for Registro Único del Contribuyente, is a unique taxpayer registry in Paraguay necessary for businesses to operate legally, file taxes, and issue invoices. It is an essential step for both new and established businesses to ensure compliance with Paraguayan tax regulations.

Who needs it?

Ideal customers for RUC registration in Paraguay include entrepreneurs starting a new business, foreign investors seeking to establish a presence in the country, existing companies expanding their operations, and any individual or entity engaged in commercial activities that require legal recognition and tax compliance.


  1. Gather all necessary documentation, including personal and business details.
  2. Visit the Paraguayan Tax Authority (SET) website and fill out the RUC application form.
  3. Submit the completed application form and required documents either online or at the local SET office.
  4. Pay any applicable fees associated with the registration process.
  5. Wait for the processing and approval of your RUC application, which typically takes a few business days.
  6. Receive your RUC number and official documentation, allowing you to legally conduct business in Paraguay.

Required documents

  • Valid passport or national ID card - obtainable from your home country or local embassy.
  • Proof of residence in Paraguay - utility bills or rental agreement.
  • Business registration certificate - available from Paraguayan business registration authorities.
  • Completed RUC application form - found on the SET website.
  • Tax compliance certificate - obtainable from the Paraguayan Tax Authority after registration.

Providers that can do it for you

(We are currently curating the best providers. If you are or know a provider, please contact us or edit the page directly)


Additional details

  • For more information, visit the Paraguayan Tax Authority (SET) website .
  • Ensure all documents are translated into Spanish if not already.
  • Seek assistance from a local legal advisor or accountant for a smoother process.
  • RUC registration is mandatory for issuing VAT receipts and fulfilling tax obligations.


Improve this article by using the contact form or editing it through our open-source GitHub repository: tramitit/guides