Can Your Employer Change Your Duties, Salary or Work Location in Portugal?

An employer in Portugal has management powers, but that does not mean every employment condition can be changed unilaterally.

The legal answer depends on what is changing.

A request to perform a related task for a short period is different from:

• permanent demotion;
• salary reduction;
• substantial change of professional role;
• transfer to another workplace;
• relocation to another city;
• a temporary business assignment.

Before accepting or refusing a change, identify which legal rule applies.

Start with the employment contract

The worker should in principle perform the activity for which they were hired.

Portuguese law also recognises that the contracted activity can include functions that are related or functionally connected to that activity, where:

• the worker has suitable qualifications;
• the functions do not cause professional devaluation.

So a job description is not always a frozen list of individual tasks.

But the employer cannot use ordinary flexibility as a way to permanently transform the worker into a substantially different or lower role.

Can the employer temporarily give you different duties?

Yes, in defined circumstances.

Article 120 of the Labour Code allows temporary functional mobility when the company's interest requires it.

The change must not substantially modify the worker's position.

The employer's order should be justified and identify the expected duration.

As a general rule, the temporary period should not exceed two years.

Can temporary different duties reduce your salary?

Not under the ordinary functional-mobility rule.

Article 120 expressly provides that the temporary change cannot reduce remuneration.

If the temporary functions carry more favourable working conditions, the worker is entitled to those more favourable conditions while performing them.

An employer should not use "temporary reassignment" as a salary-cut mechanism.

Can the employer permanently demote you?

A move to a lower professional category is much more restricted.

Portuguese law permits a lower-category change by agreement and where there is a pressing need of the company or worker.

If the lower-category change also reduces remuneration, labour-inspection authorisation is required under Article 119.

So a permanent demotion is not the same thing as temporary functional mobility.

Can the employer cut your salary?

The Labour Code protects remuneration.

Article 129 prohibits the employer from reducing remuneration except in situations allowed by the Labour Code or applicable collective regulation.

A company cannot generally say:

"Business is difficult, so your salary is reduced from next month"

and assume the change is lawful.

The actual legal basis matters.

Variable remuneration, bonuses, allowances and benefits can require a more detailed analysis because not every payment has the same legal character.

Can the employer move you to a different workplace?

Sometimes.

The default rule is that the worker performs the activity at the contractually defined workplace.

Article 194 allows employer-initiated transfer in defined circumstances.

These include:

• total or partial move or closure of the establishment where the employee works;
• another business-interest reason where the transfer does not cause serious harm to the worker.

The second route is not a blank cheque.

The business reason and the effect on the employee both matter.

What is "serious harm" from a workplace transfer?

The Labour Code does not reduce serious harm to one fixed number of kilometres.

The analysis can involve the real consequences of the transfer.

Relevant facts can include:

• increased commuting time;
• transport availability;
• family responsibilities;
• childcare;
• health;
• need to change residence;
• financial burden;
• the worker's personal and professional circumstances.

A transfer from one part of Lisbon to another is not automatically equivalent to relocation across the country.

The real impact matters.

How much notice must the employer give?

For workplace transfer, Article 196 requires written communication with minimum notice of:

• 8 days for temporary transfer;
• 30 days for definitive transfer.

The communication must be reasoned.

For a temporary transfer it should also identify the expected duration.

How long can a temporary transfer last?

The ordinary maximum is six months.

The Labour Code allows an exception where imperative requirements of company operation justify a longer period.

A "temporary" transfer should not simply become permanent by being renewed informally forever.

Who pays the additional costs?

The employer must bear the worker's expenses arising from increased travel costs and a move of residence.

For temporary transfer, accommodation costs can also fall within the employer's responsibility under Article 194.

Keep evidence of the additional expenses.

Can you refuse the transfer?

Do not reduce the question to a simple yes or no.

If the statutory transfer conditions are satisfied, a refusal can create risk for the worker.

If they are not satisfied, the employer may be giving an unlawful instruction.

Before refusing, review:

• contract workplace clause;
• applicable collective agreement;
• employer's written reason;
• temporary or definitive nature;
• serious-harm evidence;
• expense arrangements.

Can you resign because of a workplace transfer?

For a definitive transfer that causes serious harm, Article 194 gives the worker a specific right to terminate the employment contract with compensation calculated under the collective-dismissal compensation framework.

That is different from ordinary resignation.

It is also different from just-cause termination based on culpable employer misconduct.

Use the correct legal route.

What about a substantial long-term change in working conditions?

Article 394 separately recognises a substantial and lasting change in working conditions, made through the lawful exercise of employer powers, as a possible just-cause basis for employee termination.

But not every Article 394 just-cause ground produces the same indemnity framework.

A lawful business change and a culpable employer breach are legally different.

Do not assume that every serious change automatically creates the 15-to-45-day-per-year indemnity available for specified culpable employer conduct.

What if the employer changes your duties after a complaint?

That can raise a different legal issue.

If an employee exercises legal rights or reports harassment, discrimination or another problem, Article 129 protects against unfavourable treatment for exercising rights.

A sudden demotion, isolation or change of duties after a complaint should be examined in context.

The issue may move from ordinary management powers into retaliation, harassment or discrimination.

A practical response to a major change

1. Ask for the change in writing

Do not rely only on a verbal instruction for a major permanent change.

2. Compare it with the contract

Check duties, category, pay and workplace.

3. Identify the legal mechanism

Related functions, temporary mobility, demotion or workplace transfer?

4. Record the impact

Especially for relocation and serious-harm analysis.

5. Do not agree casually to a permanent change

An agreement can change the legal position.

6. Preserve payslips and job descriptions

They can prove salary and professional position.

7. Check whether the change follows a dispute or complaint

Retaliation issues can matter.

8. Get advice before refusing or resigning

The wrong response can create avoidable risk.

Common mistakes

Assuming the employer can change anything because the contract says "other duties"

Portuguese law still limits professional devaluation and substantial changes.

Assuming salary can be cut if the employee keeps the same title

Salary reduction has its own legal restrictions.

Refusing a workplace transfer without analysing the legal basis

Some employer transfers are lawful.

Accepting a "temporary" change that becomes indefinite

Duration and documentation matter.

Treating a serious change as ordinary resignation

Another statutory termination route may be available.

Frequently asked questions

Can my employer change my job duties?

Related duties and temporary functional mobility can be lawful within statutory limits. A substantial permanent change is a different issue.

Can my salary be reduced without my agreement?

Portuguese law generally prohibits employer salary reduction except where the Labour Code or collective regulation allows it.

Can my employer relocate me to another office?

Yes in defined circumstances, subject to the workplace-transfer rules.

How much notice is required for workplace transfer?

Normally 8 days for temporary transfer and 30 days for definitive transfer.

Does the employer pay increased travel costs?

Article 194 places specified additional travel and relocation costs on the employer.

Can I leave with compensation if a permanent transfer seriously harms me?

Article 194 provides a specific termination right with compensation where a definitive transfer causes serious harm.

Has your employer changed your role, salary or workplace?

Send us your employment contract, the employer's written communication and details of the proposed change.

Our lawyers can assess whether the change fits the Labour Code, identify your options and advise on objection, negotiation or termination.