Compliance
Compliance Boost: Key Tax Return and Regulator Deadlines in Chile & Argentina
Staying compliant in Chile and Argentina means tracking upcoming deadlines for annual returns, tax tables, and benefit applications to avoid fines. Here's what you need through the rest of 2026.
By NomadicTax Research Team • 5-8 min read • September 2, 2026
## Chile: What Individuals and Businesses Need to Know
| Requirement | Deadline | Who’s affected | Notes |
|---|---|---|---|
| **Beneficio Persona Mayor (Senior Citizen Benefit)** | Sept-Nov 2026 (for periods under review in August 2026) | Seniors who qualify based on income and property eligibility | Rebates for property taxes; no application needed; county verifies automatically. ([sii.cl](https://www.sii.cl/destacados/avaluaciones/bam/aplicacion.html?utm_source=openai)) |
| **Renta de personas naturales (Annual individual tax returns)** | Forms and proposals to be available from **14 Sept 2026**, with «Declarar sin pagar» option | All Chilean residents who have to file F22 for years affected by “Préstamo Solidario” obligations | Helps taxpayers with debt to declare and generate debt voucher for later payment or using agreement with Treasury (TGR). ([sii.cl](https://www.sii.cl/noticias/2026/200826noti01smn.htm?utm_source=openai)) |
| **Tax tables and rates updates** | Effective **17 August 2026 onwards** for September for Multifactor and rates; monthly thresholds adjusted in September 2026 | Applies to public office holders & second-category incomes | SII publishes new tables via circulars that adjust thresholds and effective tax rates. ([sii.cl](https://www.sii.cl/valores_y_fechas/impuesto_2da_categoria/impuesto2026_art52.htm?utm_source=openai)) |
## Argentina: Key Deadlines and Updates
- **Recaudación Tributaria de agosto**: Argentina’s national revenue report was updated 1 September 2026, showing VAT, income tax, and import/export duties with year-over-year increases. Not a regulatory change, but important for assessing government revenue trends. ([servicioscf.afip.gob.ar](https://servicioscf.afip.gob.ar/publico/sitio/contenido/novedad/ver.aspx?id=5882&utm_source=openai))
- **Impuesto a las Ganancias – declaration deadlines**: Declarations of “Impuesto a las Ganancias” and related withholdings (e.g., from permanent establishments or remittances abroad) for August 2026 are due mid-September 2026, depending on CUIT endings. ([seti.afip.gob.ar](https://seti.afip.gob.ar/av/viewVencimientosSintetica.do?utm_source=openai))
- **Liquid fuels & hydrocarbons – fixed amounts updated**: AFIP updated fixed values and per-liter pricing for liquid fuels and special hydrocarbon zones effective **1 August 2026**. Businesses dealing in fuels will need to update with their declarations using the new amounts. ([ftp.afip.gob.ar](https://ftp.afip.gob.ar/aplicativos/oProgramasImpositivos/combustiblesLiquidos.asp?utm_source=openai))
## Actionables to Avoid Penalties
- In **Chile**, mark **14 September 2026** in your calendar to access the “Declarar sin pagar” option if required; don’t miss late-filing windows or benefit loss.
- In **Argentina**, ensure your declarations for “Ganancias” are submitted on time (mid-September for many taxpayers) and your CUIT-based schedules are known. Check fuelling business or fuel usage if fixed hydrocarbon values affect you.
- Always cross-check any newly released circulars (Chile) or ARCA deadlines (Argentina) for your specific obligations.
- Keep all supporting documents digital and organized—recibos, comprobantes, etc.—they may be required for audit verification.
## Example Scenario
Maria is a small business owner in Santiago receiving “Préstamo Solidario” assistance debts from 2020-21. She has been avoiding filing because of the old deadline of **30 August 2026**, but with the extension to **30 November 2026**, she can file via SII.cl using the “Declarar sin pagar” option beginning **14 September**, generating a debt voucher and later comply at her pace. Missing that deadline would risk penalties or losing ability to set up a payment agreement.
## Bottom Line
Compliance isn’t just about avoiding penalties—missing deadlines can affect credit rating, access to benefits, foreign investment incentives, or treaty‐based reliefs. With several moving parts, setting reminders well ahead and understanding local circulars and ARCA tables is your best safeguard.