Individual or legal entity before Mexico's SAT: how to choose

A designer who invoices her own work, a store that carries inventory, and a company owned by three partners do not need the same structure. All three can sell and issue CFDI invoices, but they face different tax calculations, paperwork, and liability.

Separate the tax question from the operating question

Entity choice affects more than the rate on a return. Review who signs contracts, who owns the assets, how money will be withdrawn, whether partners are involved and what liability the activity creates. Put those answers beside the tax estimate so the decision reflects the business that will actually operate.

People often mix up two separate decisions:

1. Legal form. Operate under your own name as an individual or through a company with its own legal identity.
2. Tax regime. Use RESICO, business activity, the general corporate regime or another applicable regime.

Incorporating does not guarantee a lower income tax bill. Operating as an individual does not make a business informal. A useful comparison starts with cash collected, expenses, owners, contracts, and risk.

What changes between an individual and a legal entity

An individual taxpayer carries out economic activities under a personal RFC. An individual can provide services, sell products, lease property, and hire employees. A legal entity is a company or other organization, such as an S. de R.L., S.A. de C.V., or SAS, with its own RFC, accounts, and filing duties.

An RFC does not tell the whole story. A company may use the general regime or, if it qualifies, corporate RESICO. An individual can also have more than one activity and set of duties. Define how the business operates first, then test which tax regimes are available.

When operating as an individual may be enough

An individual structure often fits when one person performs the work or runs the business, there are no investors, and the operation does not need corporate governance.

Consider this route if:

• clients are hiring your work directly;
• there are no partners or informal profit-sharing arrangements;
• contractual risk is limited;
• business expenses are low or fit the proposed tax regime;
• you can keep business cash in a dedicated account, even if the account remains legally yours.

RESICO may be available to individuals carrying out certain business, professional, or leasing activities. Article 113-E of Mexico's Income Tax Law sets an annual MXN 3.5 million income limit and calculates income tax on CFDI income actually collected, without deductions. A low rate therefore does not settle the question. A low-margin business may pay tax on a base far above its profit.

Ask both questions: "individual or company?" and "which tax regime, and why?"

When a company solves a real problem

A legal entity becomes useful when the business needs to exist apart from its founder. Revenue does not have to be large. Partners, investment, or a high-risk contract may justify a company much earlier.

These situations call for a closer look:

• two or more people will contribute cash, work, or intellectual property;
• an investor needs shares or equity interests;
• the business will sign leases, loans, or contracts with meaningful liability;
• it will employ staff on a recurring basis;
• clients or public tenders require a company as the contracting party;
• the owners need written rules for voting, representation, and profit distributions.

Limited liability helps, but it is not absolute. Personal guarantees, tax breaches, unlawful conduct, and other exceptions can expose owners, directors, or legal representatives. A poorly run company is not an automatic shield.

A SAS is one specific option

Mexico's Simplified Stock Corporation, or SAS, can be formed online by one or more individuals. The Ministry of Economy's SAS filing has no government fee and makes the use of a notary optional. Every shareholder needs an e.firma, and the company must meet ownership restrictions and the annually updated revenue ceiling.

Easy formation does not make a SAS the right answer in every case. An S. de R.L. or S.A. de C.V. may fit better when the company needs complex investment terms, custom owner rights, or room to grow past the SAS limits. That is a legal and tax decision, not a race to file the shortest form.

How to compare income tax without being misled by rates

The statement "a company pays 30%" is incomplete. Article 9 of Mexico's Income Tax Law applies the 30% rate to taxable profit, not gross revenue. Taxable profit takes taxable income, authorized deductions, paid employee profit sharing, and available tax-loss carryforwards into account.

Individual RESICO, by contrast, applies income tax to cash collected without subtracting deductions. A comparison needs at least the following inputs:

Do not compare the structures solely by "2.5% versus 30%." Include the business tax, the cost of compliance, and the tax treatment of cash paid to its owners.

Corporate RESICO has its own eligibility rules

The revenue limit is only one test. Article 206 of the Income Tax Law covers Mexican resident legal entities owned solely by individuals when prior-year revenue does not exceed MXN 35 million, or when a new company expects to remain under that amount. It also contains exclusions involving ownership, control, and related parties.

A company does not qualify for RESICO merely because it invoices less than MXN 35 million. Its ownership and each exclusion need to be checked. The regime changes the timing of certain income and deductions, but it does not remove a company's accounting and filing duties.

Make sure the operation can handle the duties

Before choosing a structure, decide who will perform each task and where the data will come from:

• issue CFDI invoices and payment supplements;
• reconcile bank transactions, collections, and invoices;
• submit monthly payments and annual returns;
• control VAT and withholding;
• run payroll and meet labor and social security duties;
• retain contracts, bank statements, and support for deductions;
• maintain ledgers, minutes, and powers of attorney for a company.

The DIOT information return may apply depending on the taxpayer's regime and registered duties. Check the SAT's DIOT guidance against the tax situation certificate and actual activity. It should not be assumed or dismissed without that check.

Signs the current structure no longer fits

Review the choice when:

1. informal partners share a business that invoices through one person's RFC;
2. operating costs are high, but the regime does not recognize them for income tax;
3. personal spending and business collections use the same accounts;
4. no one can say which contracts, assets, or debts belong to the business;
5. registered activities no longer describe what the business sells;
6. growth depends on credit, investment, or clients that require a company;
7. monthly returns are prepared from incomplete records.

One issue may be fixed with better controls. Several at once usually call for a legal and tax review, not a rushed change in the SAT portal.

Build a file for the decision

Gather evidence before asking for a tax projection:

1. invoices issued and cash collected during the past 12 months;
2. sales and collection forecast for the next 12 months;
3. expenses supported by CFDI, payroll, inventory, and investments;
4. bank statements and business debt;
5. current contracts and the risks they create;
6. a list of owners, contributions, and agreements;
7. the tax situation certificate and compliance opinion;
8. filed returns, outstanding returns, and payments made.

With this file, an accountant can compare outcomes in pesos. The projection should state its assumptions, the added duties under each route, and the cost of maintaining the structure.

Choose for the operation, not the label

A well-run individual business may be enough for years. A company may be needed before the first major contract. Size alone does not decide.

Fintax offers accounting plans for RESICO, individuals, and legal entities and a consultation to compare your case. The review should end with a documented route: tax regime, duties, compliance cost, and a date to reassess the choice.

Frequently asked questions

Which pays less tax in Mexico, an individual or a legal entity?

Legal form alone cannot answer that. The result depends on the tax regime, income, authorized deductions, and how owners receive profits. Compare the options with the business's actual figures.

Can an individual taxpayer hire employees in Mexico?

Yes. The individual must meet payroll, withholding, social security, labor, and tax duties. Having employees does not by itself require incorporation.

Is RESICO always best when the revenue is below the limit?

No. The limit only makes the regime a possibility. For individuals, the lack of income tax deductions and other restrictions matter. For companies, ownership and statutory exclusions must also be reviewed.

When should a business consider a legal entity?

Before admitting partners, accepting investment, signing major contracts, applying for credit, or separating business assets and risks from personal property.

Official links to complete the task

Open official services from a new browser tab, confirm the taxpayer and period, and save the resulting acknowledgment or evidence with the case.

• SAT: reprint tax-return acknowledgments