A is a taxpayer specifically designated by the National Superintendency of Customs and Tax Administration ( SUNAT ) due to their significant impact on national tax revenue. Collectively, these taxpayers represent approximately 70% of Peru's total tax collection , making them the cornerstone of the country's fiscal stability. 2. Classification and Selection Criteria

The following is a structured academic overview of the "Principal Contribuyente" (PRICO) status within the Peruvian tax system administered by SUNAT. 1. Definition and Significance

As of 2025, PRICOs with annual incomes over 300 UIT must use an Operador de Servicios Electrónicos (OSE) to validate their electronic invoices.

SUNAT classifies PRICOs into three categories based on their administrative jurisdiction:

Mandatory use of electronic sales and purchase ledgers (Libros Electrónicos).