President Abelardo de la Espriella ordered the immediate creation of a new Anti-Corruption Search Block to identify and dismantle criminal networks infiltrated in public institutions. ^[1] According to the Dian tax calendar, the income tax filing deadlines for the week of 2026-09-01 to 2026-09-04 are: September 1 for NIT endings 27 and 28, September 2 for 29 and 30, September 3 for 31 and 32, and September 4 for 33 and 34. ^[2] The block will also incorporate the Attorney General's Office (Fiscalía), the Comptroller General (Contraloría), the Procuraduría, and international cooperation mechanisms. ^[3] The new Anti-Corruption Search Block will depend directly on the Presidential Office and will include the Judicial Police, intelligence agencies, the Financial Information and Analysis Unit (Uiaf), and the National Tax and Customs Directorate (Dian). ^[4] The President stated that the block will trace the path of public resources that have been compromised and gather evidence to be delivered to judicial authorities. ^[5] Colombia's income tax declaration season for tax year 2025 runs from 2026-08-12 to 2026-10-26, with each taxpayer's deadline set by the last two digits of their NIT (tax identification number). ^[6] In Colombia, individuals are required to file income tax returns for tax year 2025 if they were VAT-responsible as of 2025-12-31, had gross assets exceeding 224,096,000 pesos, or earned gross income of 69,719,000 pesos or more in 2025; the same 69,719,000-peso threshold triggers filing if exceeded by credit card spending, total purchases/consumption, or bank deposits/investments during 2025. ^[7] Under Article 639 of Colombia's Tax Statute, the minimum penalty for filing income tax declarations late is 10 UVT (Unidades de Valor Tributario); with each UVT set at 52,374 Colombian pesos for 2026, the approximate minimum fine is 524,000 pesos. ^[8]