Key facts
Start with
Integrated pay
not base salary alone
Key layers
IMSS + INFONAVIT
plus state tax and benefits
Better budget
Annual cost
not one payroll month
A Mexico salary offer is not a Mexico hiring budget. The number on the contract is only the starting point. Employer social-security contributions, housing-fund obligations, risk insurance, state payroll tax and statutory benefits can all sit above it.
The useful question is not “what percentage should I add?” It is “which pay elements create a payroll obligation for this employee, in this state, under this employment arrangement?” That produces a budget someone can audit instead of a multiplier that falls apart when payroll begins.
The short answer: salary is only one layer
For a permanent Mexican hire, model the full year of employment rather than the first monthly payslip. Start with gross salary, then identify the salary base used for social-security calculations, required annual benefits and the employer's state-level obligations.
This is why two employees on similar annual salary can produce different employer cost. Industry risk classification, state payroll tax, the mix of pay elements and statutory changes can affect the result. A recruiter's monthly headline should never be the final approval number.
What usually sits above gross salary
| Cost area | Why it matters |
|---|---|
| IMSS and retirement branches | Multiple employer contributions use the relevant contribution salary base. |
| INFONAVIT | Housing-fund contributions are an employer cost, separate from cash salary. |
| Riesgos de Trabajo | The rate depends on the employer's risk classification, not a generic tech assumption. |
| ISN and benefits | State payroll tax, aguinaldo, vacation premium and company benefits need their own lines. |
Why the contribution base changes the answer
Mexican payroll does not always use the same figure as a job advert. Mandatory benefits and regular compensation can affect the integrated salary used for contributions. That is the reason an employer-cost estimate should ask about the contractual package rather than merely multiply annual base pay.
For an offer that includes allowances, commissions or a bonus, ask payroll which components are part of the contribution base and which are reimbursed expenses. It is a small question before signing and an expensive one after a budget is approved.
A hiring-manager checklist
- Confirm the employee's state of work and the applicable ISN treatment.
- Use the actual employer risk classification, not a default if the business is not office-only.
- Annualise aguinaldo, vacation premium and paid leave before comparing offers.
- Keep equipment, recruitment and health benefits separate from statutory payroll cost.
- Have local payroll validate the final contribution base before issuing the contract.
Do not confuse employee take-home with employer cost
An employee may focus on net salary after ISR and employee deductions. The employer must budget a different set of liabilities. Both views are valid, but they answer different questions. Use the take-home tool to explain the offer to a candidate and the employer-cost calculator to obtain finance approval.
Official checks before a final decision
IMSS provides an employer contribution simulator, and local payroll advice is still important when a role has variable pay or non-standard benefits. Check current state tax rules as well. A calculator is ideal for planning, while the signed offer needs the actual payroll facts.
Official source
IMSS employer contribution simulator is the starting point for current contribution checks. Confirm INFONAVIT and state-tax treatment for the location and employment setup before committing a final budget.
Calculator check: a realistic market scenario
For MX$400,000 annual gross salary, with the legal-minimum aguinaldo and the calculator's default office-risk and state-tax assumptions, the live engine produces MX$520,208 annual ongoing cost, or 1.30× salary. That includes MX$67,770 IMSS, MX$20,000 INFONAVIT, MX$12,000 state payroll tax and MX$16,438 aguinaldo. Change the state, risk class or package and the result changes.
Turn a salary quote into a real Mexico hiring budget
Use the calculator for the statutory baseline, then add your actual benefit and setup choices separately.
Open the Mexico employer-cost calculator →Stay current
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Frequently asked questions
What does an employee cost in Mexico beyond salary?
The cost can include employer IMSS contributions, INFONAVIT, retirement-related contributions, occupational-risk insurance, state payroll tax and mandatory benefits such as aguinaldo. The exact load depends on the salary base, industry risk and state.
Is an IMSS contribution a flat percentage of salary?
No. Mexico payroll has multiple contribution branches, a salary base and caps. A flat percentage is only a rough early-stage estimate, not a payroll calculation.
Does state payroll tax apply everywhere at the same rate?
No. ISN is a state tax, so the rate and treatment should be confirmed for the employee's work location.
Related tools and reading
General information only. Check current official guidance and obtain professional advice for a decision affecting your tax, employment or immigration position.