The Tax Evasion Law (Law No. 21.713) came into effect on January 2, 2026, and is already changing the game for Chilean accountants. The SII (Internal Revenue Service) now receives automatic reports from banks, payment facilitators (Webpay, Flow, Mercado Pago), and marketplaces when they detect >50 monthly transfers or significant digital sales, shining a light on informality like never before.
For accounting firms – which advise 80% of SMEs according to Corfo – this means a tsunami of clients needing urgent formalization, but also fines if they don't provide proper guidance (up to 1 UTA per unissued document). This practical guide equips you with everything: obligations, strategies, and how AI for accountants in Chile turns this law into a growth opportunity for your firm.
What triggers the Tax Evasion Law and why are accountants on the front line?
Since January 2026, the SII cross-references massive data via Circular No. 38:
- Banks: Report accounts with +50 transfers/month from different senders.
- Payment Facilitators: Webpay links, Transbank POS, Flow report amounts > SII thresholds.
- Marketplaces: Mercado Libre, Falabella report active sellers.
- Consequence: SII sends automatic summons requiring Business Startup within 30 days.
Your key role: 70% of those summoned are SMEs/Independents without a corporate RUT. Accountants who lead formalization capture recurring clients (monthly F22, F29 + year-end closures).
Q1 2026 Data: SII identified 165,000 taxpayers with "suspicious" movements. Initial fines: $5-20MM for not issuing receipts.
New obligations for your clients (and how to advise them)
The law forces operational formalization. Checklist for SMEs/freelancers landing in your firm:
- SII Business Startup (24 hours): Corporate RUT + specific business activity. Cost: $0.
- Mandatory Electronic Invoicing: Configure issuance in SII (web receipts, electronic via API).
- Monthly Filings: F22 VAT (15% sales), PPM (if applicable). Fine: 10% of tax owed.
- Electronic VAT/Sales Books: Automate or fines 0.5 UTA/month.
- 2nd Category Withholdings: If you have employees, calculate/withhold for the SII.
| Client Type | Evasion Trigger | Accounting Action | Fine if No Action |
|---|---|---|---|
| Marketing Freelance | 60 Instagram transfers | Startup + Receipts | $3MM + interest |
| Mercado Libre Store | Sales >$10MM/month | Electronic invoices + F22 | Account suspension |
| Home Services | Transbank POS >50 ops | Corporate RUT + RETC | $10MM + seizure |
| Online Coaching | Flow > SII threshold | Monthly declarations | Payment link closure |
| Retail SME | Bank detects pattern | VAT books + PPM | Full audit |
Implementation time: 3-5 days per client with manual processes. With AI: 1 day.
Real impact on accounting firms: Heavy opportunity
Good news: The law multiplies the demand for accounting services 3x in Q1 2026:
- New Clients: 40% of summoned SMEs look for accountants to "save" them.
- Recurrence: Formalized entities issue mandatory daily/monthly documents.
- Upsell: Accounting automation, AI compliance, tax planning.
Risks for you:
- Joint fines if you advise poorly (Law 21.713 Art. 67).
- Competition: Accountants with AI capture 80% of the formalization market.
Providencia Case: A small firm formalized 150 clients in January 2026, revenue +250%. A manual competitor processed 20.
AI: Automate Tax Evasion Compliance and scale your firm 5x
AI for SME accountants reduces compliance time by 80%, turning SII summons into gold:
| Tax Task | Manual (h/client) | AI (h/client) | Tool |
|---|---|---|---|
| Business Startup | 4 | 0.5 | ChatGPT + SII API |
| Invoicing Config | 6 | 1 | Copilot + Defontana |
| Auto F22/F29 | 3/month | 0.2/month | Datapolis IA |
| Electronic Books | 5/month | 0.3/month | Gemini + Excel |
| Summons Response | 8 | 1 | Claude legal |
AI workflow example:
- Client uploads SII summons PDF → ChatGPT extracts data.
- Copilot calculates correct business activity + missing documents.
- Datapolis generates Business Startup + first F22.
- Executive report for client (2 pages).
Savings: A medium firm processes 50 clients/month vs. 10 manually.
Implementation Roadmap: Turn crisis into a recurring system
Week 1: Firm Setup
- Integrate SII API (free for accountants).
- Train AI with Tax Evasion prompts.
- Create "Express Formalization" package ($300K-800K).
Weeks 2-4: Capture Demand
- WhatsApp campaign: "Received an SII summons? Get formalized in 48h."
- Landing page: Testimonials + fine calculator.
- Local marketplace partnerships.
Month 2+: Recurring Scale
- Compliance subscription ($100K/month/client).
- Client dashboard: SII status, upcoming deadlines.
- Tax planning upsell 2026.
Expected Success KPIs:
30 new clients/month, 80% retention, 65% margin.
Real 2026 Accountant Cases
- Ñuñoa Firm: AI processed 200 summons in Q1. Annualized revenue +$150MM.
- Independent Accountant Temuco: Freelance package ($400K), 80 clients/month.
- Lesson: Manual = saturation; AI = infinite scale.
datapolis.cl Offer:AI services for Chilean accountants with direct SII integration. Automate 100% Tax Evasion compliance. AI Chile Courses (2 weeks): From zero to expert in AI invoicing.
Urgent Call: Position yourself as the Anti-Evasion accountant
In 2026, the 26% informality in Chile (INE) = 500,000 potential SMEs/clients. Accountants with AI capture 70% of the market.
Is your firm ready for the avalanche of summons?
Free diagnosis + SII AI demo in 24h.