Severance for an unjustified dismissal in Mexico is three months of integrated salary, plus a seniority premium of 12 days per year of service, plus everything already accrued. Where reinstatement is excused or refused, add 20 days of salary for every year worked. If it reaches a labor court and you cannot prove cause, add back wages of up to 12 months, then interest.
US plant managers tend to read that list once, assume it is the worst case, and move on. It is the ordinary case. There is no at-will employment in Mexico, so the question is never whether a termination costs money, only how much and who decides the figure.
This sits inside the wider picture of what it costs to employ someone in Mexico, and it is the line item most likely to be missing from a first-year budget.
The Components, and Which Cap Applies to Each
Most English-language summaries get one thing wrong, and it is an expensive thing: they apply the two-times-minimum-wage cap to the whole package. It does not work that way. The cap reaches the seniority premium and nothing else.
| Component | Amount | Salary used |
|---|---|---|
| Constitutional indemnity | 3 months | Integrated daily salary, no cap |
| 20 days per year of service | 20 days for each year worked | Integrated daily salary, no cap |
| Seniority premium | 12 days for each year worked | Daily wage, capped at twice the minimum wage |
| Accrued vacation | Days not taken | Daily wage |
| Vacation premium | 25% of the vacation pay | Daily wage |
| Proportional aguinaldo | 15 days a year, prorated | Daily wage |
| Back wages, only if litigated and lost | Up to 12 months, then 2% monthly interest on 15 months of salary | Daily wage at the time of payment |
Every figure above comes from the Federal Labor Law, published in full by the Mexican Congress and last amended in May 2026. Two definitions do the heavy lifting. Integrated salary is the daily wage plus the proportional value of everything else the worker receives, so aguinaldo and the vacation premium get folded in before you multiply. The capped salary applies only to the seniority premium, and in 2026 the ceiling is twice 315.04 pesos a day in most of the country, or twice 440.87 pesos in the northern border zone, per the 2026 minimum wage increase.
That border figure is why the cap almost never bites in Tijuana or Ciudad Juarez, and bites much sooner on a technician in Queretaro. Same law, different arithmetic, which is a sentence you will read a lot in Mexican payroll.
A Worked Example: Five Years on the Line
Take an operator at a border plant on 420 pesos a day, five years of service, dismissed without a provable cause.
- Integrated daily salary: 420 pesos plus the proportional aguinaldo and vacation premium, which works out to roughly 441 pesos
- Three months: 90 days at 441 pesos, so about 39,700 pesos
- Seniority premium: 12 days times 5 years is 60 days at 420 pesos, well under the border cap of 881.74, so 25,200 pesos
- Accrued vacation, premium and aguinaldo: depends on the date, but budget 8,000 to 12,000 pesos
- Running total: roughly 73,000 to 77,000 pesos, about six months of that worker’s pay
Now add the two escalators. If the case is one where reinstatement is excused, the 20 days per year adds 100 days at 441 pesos, another 44,100 pesos. If it reaches a court and you lose, back wages of up to 12 months add roughly 153,000 pesos more.
The same worker, same five years, costs 73,000 pesos or 270,000 pesos depending entirely on paperwork you either kept or did not keep.
The Notice That Decides the Case
Mexican law does recognise dismissal for cause, and the list of causes is long and fairly sensible: dishonesty at hiring, violence, repeated safety breaches, more than three unjustified absences in thirty days.
The catch is procedural, and it has ended more cases than any argument about conduct. You must give the worker a written notice stating clearly the conduct behind the dismissal and the dates it happened. It goes to the worker in person at the moment of the dismissal, or to the labor court within the next five business days. Miss that, and the law itself presumes the separation was unjustified, leaving you to prove otherwise.
There is a second trap in the same article: the clock on the worker’s right to sue does not even start running until that notice reaches them personally. A dismissal handled by phone call does not quietly age out of risk.
And a third, which catches managers who prefer to wait and build a file: your right to dismiss for a particular act expires one month after it happens. Misconduct from last quarter is a performance conversation now, not a cause.
Why Almost Everything Settles
Since the 2019 labor justice reform, a worker cannot go straight to court. The case starts at a conciliation center, and only moves to a labor tribunal if that stage fails.
Conciliation is not a formality designed to waste an afternoon. It exists because the alternative is a back wages meter running at the worker’s full salary for up to twelve months, after which interest accrues at 2% a month on fifteen months of salary. Time is on precisely one side of that table, and it is not yours.
Which is why experienced employers in Mexico treat the settlement figure as the real price of a termination, and the statutory calculation as the floor it negotiates up from.
What a Shelter Absorbs, and What It Does Not
Under a shelter the provider is the legal employer, so the claim, the conciliation hearing and the court exposure belong to them. That is one of the clearest risk transfers in the model, and we describe the full split of duties in what a shelter company actually does.
The economics still reach you. The one shelter agreement that is public, filed with the SEC, requires the client to fund a severance reserve equal to 10% of weekly payroll, held by the provider. You are prefunding the exposure, week by week, long before anyone is let go.
So the questions for a provider are specific: who decides whether a dismissal is with cause, who signs the written notice, who attends conciliation, and what happens to the unused reserve when you move to your own entity. A shelter that cannot answer the last one is telling you something.
What to Do Before You Terminate Anyone
Everything that makes a Mexican termination cheap happens months before the termination. In order:
- Document conduct as it happens, with dates. The written notice has to name conduct and dates, so a file assembled afterwards reads exactly like what it is.
- Get attendance records right. Absence cases are the most winnable and the most often lost on recordkeeping.
- Calculate the full package first. Know the floor before any conversation starts.
- Deliver the notice correctly. In person at the moment of dismissal, or to the court within five business days.
- Treat the settlement range as the plan, not the failure. Budget it and move on.
And one thing not to do: a quiet cash deal with no signed release. It buys a few days of peace and leaves the full claim entirely intact.
Severance is one of three labor costs with dates attached, alongside aguinaldo in December and profit sharing every May. Budget all three in year one and the second year stops producing surprises.
Frequently Asked Questions
How is severance calculated in Mexico?
For an unjustified dismissal: three months of integrated salary, a seniority premium of 12 days per year of service, and all accrued vacation, vacation premium and proportional aguinaldo. Where reinstatement is excused, add 20 days of salary per year of service.
Can you fire someone in Mexico without severance?
Only for a cause listed in the law, documented in a written notice delivered to the worker in person or filed with the labor court within five business days. Even then, accrued benefits and, in most cases, the seniority premium are still payable.
What is the difference between finiquito and liquidacion?
A finiquito is what a worker is owed when they resign or leave with cause on their side: accrued vacation, vacation premium and proportional aguinaldo. A liquidacion is the larger package owed after an unjustified dismissal, with the three months of indemnity on top.
Is the seniority premium always payable?
It is payable on any dismissal, justified or not, and on resignation only after 15 years of service. It is 12 days per year, using a daily wage capped at twice the minimum wage.
How long does a worker have to file a claim?
Two months from the dismissal, but the period does not begin until the worker personally receives the written dismissal notice. Where no notice was delivered, that clock has not started.
Terminations in Mexico are manageable when the paperwork is built in advance and expensive when it is not. Tell us your headcount and your ramp plan and we will model the labor exposure with you, free of charge, including how it is handled inside our shelter program.
