Blog & Resources
Guides, tax news and tips for doing business in Mexico.
Sociedad Civil in Mexico: what it is and when it beats an SA de CV (2026)
The SC pays the same 30% ISR as the SA de CV, but offers one mechanism most overlook: partner anticipos (advances) are deductible for the company and taxed at the partner's progressive rate. Practical guide with comparison table and real cases for professional firms.
Double taxation in Mexico: tax treaties with USA, Spain and other countries (2026)
Most articles about double taxation in Mexico describe the 183-day rule incorrectly, miss the saving clause in the Mexico-US treaty, and don't mention Russia suspended its US treaty in 2024. This guide covers the three treaties most affecting expats: USA, Spain and Russia, withholding rates each reduces, and cases where the treaty exists but doesn't help.
How to declare YouTube, Twitch and social media income to SAT Mexico in 2026
Since April 2026, SAT has real-time access to YouTube, TikTok and Twitch payment data. Complete guide: correct tax regime for content creators, how the W-8BEN form reduces AdSense withholding from 30% to 10%, and what to do if you haven't declared for years.
Accounting for startups in Mexico: what SAT never forgives in the first two years
A startup exceeding $3,500,000 MXN annually loses RESICO and faces ISR up to 35%. Guide on the right tax regime, SA de CV vs sole trader, how Stripe and PayPal are taxed, and the four errors that shut down tech businesses in year one.
SAT tax audit in Mexico: what to do if you receive a tax review
Receiving a SAT notice does not mean you owe something yet — you have 15 business days to respond before silence becomes a fiscal admission. Guide covering all 5 review types, what SAT looks for, your rights and how the Conclusive Agreement can reduce fines by 100%.
How to become tax-compliant in Mexico if you have not filed SAT returns for years
Every month that passes without regularizing with SAT does not just accumulate debt — it grows it with 1.47% monthly surcharges on the inflation-adjusted tax. But the biggest risk is not financial: it is that SAT can come before you go to them, with an audit that closes the negotiation window. This guide explains how long SAT has to collect, what can be negotiated, how to calculate the real debt amount and the concrete process to become compliant before the situation escalates.
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