The real headline for solo founders looking at Mexico is RESICO, a genuinely simple tax regime capable of bringing your effective rate down to just 1% to 2.5% of gross income. What trips up nearly every registration, sole proprietor or company alike, is the same thing: landing your tax ID appointment. This is what the process actually involves in 2026.
1. Sorting out your structure
Three structures are worth knowing, though most solo founders end up choosing between the first two.
- Persona Física con Actividad Empresarial (sole proprietor). The quickest structure to set up, trading under your own name with full personal liability. Foreign nationals need a valid visa before they can register.
- S de RL (de CV) (Sociedad de Responsabilidad Limitada). The Mexican equivalent of an LLC, offering limited liability, and frequently the pick for US-connected founders because of check-the-box tax transparency under US IRS rules.
- SA de CV (Sociedad Anónima). A stock corporation, generally a better fit for larger capital raises than for a single-founder operation.
2. The registration and notary process
Start by reserving your company name with the Secretaría de Economía, which takes 1 to 5 business days, then get your Articles of Incorporation (Acta Constitutiva) notarized before a Mexican Notario Público, a role quite different from a US-style notary and often the first real slowdown in the process. Registration then goes through the Public Registry of Commerce in whichever state you'll actually operate from, since moving states afterward is genuinely painful. You'll also need a Mexican-resident Legal Representative who holds the e.firma (digital signature) controlling the company's tax filings. Expect total costs of roughly MXN 16,000 to 28,000 for notary and registration fees, or $5,000 to 15,000 all-in once legal and accounting setup are folded in, with the whole process taking 2 to 4 weeks.
3. Getting your RFC, and budgeting real time for it
This step causes more delay than anything else in the process. Your RFC (tax ID) has to come from SAT via an in-person appointment, booked through a digital queue system, Fila Virtual, that can take weeks just to open a slot. Your legal representative usually ends up queuing twice, once for the RFC and again for the e.firma. Plan on 4 to 6 weeks for this alone. If foreign capital owns the company, add registration with the Registro Nacional de Inversiones Extranjeras (RNIE), which needs annual renewal.
4. Licenses, permits, and a note on real estate
There's no single national business license across Mexico. What applies depends on your industry and municipality. Worth flagging if property is anywhere in your plans: foreigners can't directly own land within 50km of the coast or 100km of the borders for residential purposes.
5. How tax works, from ISR to RESICO
Companies pay a flat 30% corporate income tax (ISR) on net profits, plus a 10% withholding surtax whenever dividends go out to shareholders. VAT (IVA) sits at 16% standard, dropping to 8% in eligible regions near the US border.
Sole proprietors (persona física) earning under MXN 3.5 million a year get a genuinely different deal under RESICO: tax of just 1% to 2.5% on gross income, with no deductions allowed, though at that rate deductions wouldn't move the needle much anyway. Payments are filed monthly, and as of 2026 those monthly RESICO payments count as final, so there's no annual return to file on top. The catch is that RESICO only applies to individuals, never to corporate structures like an S de RL de CV; incorporate as a company and you're back at the 30% rate no matter how small the business is.
6. Staying compliant once you're operating
Social security (IMSS) contributions stay optional for sole proprietors with no employees, but become mandatory the moment you hire staff, typically adding 25% to 35% on top of base salaries, a real cost multiplier worth budgeting for ahead of time. Companies have to file VAT returns and annual tax filings on SAT's schedule, and any peso paid to a Mexican vendor is only deductible if it's backed by a valid CFDI (electronic invoice).
Mexico business costs at a glance
| Item | Cost |
|---|---|
| S de RL/SA de CV formation, all-in | ~MXN 16,000 to 28,000 |
| RFC (tax ID) processing time | 4 to 6 weeks |
| Corporate tax (ISR), standard | 30% |
| RESICO (sole proprietors, under MXN 3.5M/yr) | 1% to 2.5% of gross income |
| Dividend withholding surtax | 10% |
| VAT (IVA), standard rate | 16% |
| IMSS (if hiring), true cost multiplier | +25% to 35% of base salary |
Frequently asked questions
What is RESICO in Mexico?
A simplified tax regime for sole proprietors earning under MXN 3.5 million a year, taxing gross income at just 1% to 2.5% with no deductions, and as of 2026 those monthly payments are considered final.
What's the biggest bottleneck when registering a business in Mexico?
Getting your RFC (tax ID) from SAT, which requires an in-person appointment booked through a digital queue system that can take weeks to open up. Realistically budget 4 to 6 weeks for this step alone.
What's the corporate tax rate in Mexico?
A flat 30% on net profits (ISR), plus a 10% withholding surtax on dividends distributed to shareholders.
How much does it cost to form an S de RL in Mexico?
Total costs typically run MXN 16,000 to 28,000 for notary and registration fees, or $5,000 to 15,000 all-in once legal and accounting setup are included.
What's the VAT rate in Mexico?
16% standard (IVA), reduced to 8% in eligible regions near the US border.
Fees and rates above are drawn from SAT and the Secretaría de Economía as of 2026, and they shift over time, so verify before you file. None of this is legal or tax advice. Talk to a Mexico-qualified accountant or lawyer about your specific situation.