If your company is active in multiple European markets, pretty soon you’ll probably need to send staff to Spain for a project, client meeting, or a stint at a group company. The rules on posting workers to Spain are quite detailed, and trust us, the authorities are keen to enforce them – so get it right, or you’ll be facing a hefty bill.
Key Points to Keep in Mind
- Posted workers are non-Spanish employees who are temporarily sent to Spain while still on their home country’s payroll and social security scheme. Law 45/1999 is the main Spanish law covering these situations – it’s the Spanish interpretation of an EU Directive on this subject.
- You’ll need an A1 certificate to confirm the posted workers’ social security arrangement and it’s mandatory. You have to get it before you send your team.
- Before your staff start work, you’ll need to send an electronic notification to the relevant Spanish labour authority – there are very few exceptions to this rule.
- Your posted workers in Spain need to get at least the Spanish minimum wage and be treated in line with any relevant collective agreements – especially in the construction sector.
- Carway Migrate can act as your go-to person in Spain to help with all the logistics, like notifications, A1 certificates and tax planning, especially when dealing with longer-term postings.
So What Exactly is a Posted Worker and When Do the Spanish Rules Apply?
Let’s say a German construction company wins a contract to fit out an office tower in Madrid. They send five fitters for three months – they’re still on German pay, but working on a Spanish construction site. These guys are posted workers.
According to EU law and Spanish Law 45/1999 – a posted worker is anyone employed in an EU country (or the broader EEA area) who is temporarily sent to work in Spain. Spanish labour law applies, even if the contract was signed in Berlin – so Spanish minimum conditions apply to the work they do in Spain.
If your employees are just visiting Spain to attend a meeting, trade fair or some internal training and aren’t actually working for a Spanish client, then the posting rules probably don’t apply. And if you have workers commuting daily from Portugal or France, then they’re not treated as posted workers, they’re covered by Spanish law from day one.
Legal Framework – EU Directives and Spanish Law
The posting rules work on two levels – EU directives and Spanish national law. You need to comply with both.
The key bits of legislation are the EU’s Posted Workers Directive (96/71/EC) and the Enforcement Directive (2014/67/EU), as well as Spain’s Law 45/1999 – which has been tweaked in April 2021. The 2021 update tightened up the rules on pay, equal treatment and introduced a longer posting threshold of 12-18 months.
When it comes to social security, regulation (EC) 883/2004 coordinates coverage across member states. Your workers can stay under their home country’s social security scheme for up to two years if they’ve got a valid A1 certificate. You need to get the certificate before you post them – or else Spanish authorities may start charging contributions from day one.
The Spanish Ministry of Labour and the social security inspectorate (ITSS) are responsible for enforcing these rules, with help from other member states.
Who Can Post Workers to Spain and When?
Law 45/1999 covers any company established in an EU country or one of the EEA countries that temporarily sends staff to Spain.
There are three classic scenarios where the posting rules kick in. First, if you’ve got a contract to work with a Spanish client – like a French engineering firm sending engineers to Valencia to fit out a new building. Second, if you’re transferring staff between group companies in different countries – like a Dutch IT firm sending developers to their Spanish subsidiary. And third, if you’re a temporary employment agency supplying workers to a Spanish client – like a Polish agency sending welders to a shipyard in Bilbao.Merchant navy crew on seagoing vessels and training activities at sea and suchlike are off the employers radar. Cross border workers like the one who lives in Perpignan but commutes daily to Girona are Spanish labour law, no question. They’re not considered ‘posted workers’ as that title is only for people who are temporarily sent to another country to work.
Non EU nationals legally working in an EU or EEA country can also be sent on a posting, though certain details will depend on their nationality, job description and how long they’ll be working.
Core Employer Obligations for Posting Workers to Spain
You need to know about these obligations from the very first day your posting starts, even if it’s only for a few days. These obligations are outlined below in rough chronological order – before posting, during posting and after the posting comes to an end.
You will need to vary your approach depending on the autonomous community – Madrid has its own portal and that is different to Catalonia. You will need to check with the local authorities to make sure you’re doing it right. There are some additional rules that apply to the construction sector, temporary employment agencies and the road transport sector – you can read up on those below.
Notifying the Relevant Labour Authority in the Autonomous Community
Before your workers start work, you need to submit a notification electronically at least 24 hours before. You will need to notify your posting to the relevant Spanish authorities before you start and this needs to be done electronically to the labour authority in the area where the work will be done. If you’re operating in Ceuta or Melilla you send the notification to the labour units of the respective government delegations. For drivers, it’s slightly different – you go through the EU’s IMI system.
You get a small 8-day window before you have to notify for short postings – but it doesn’t apply to the construction industry, temporary agencies or any of the regulated sectors – those need to be notified from day one.
You need to include details such as employer name, tax address, job title and personal details for each worker, the local contact details, where the work will be done, how long it’s going to last, what work is being done and what collective agreements apply. If a French engineering company sends staff for 10 days to Valencia, for example, it needs to file through the Valencian portal, listing every worker’s job details, the scope of the project and the designated contact person.
Choosing a Representative in Spain
Foreign employers need to designate someone with a Spanish address who can liaise with the labour authority and ITSS, and keep all your posting paperwork handy. This isn’t a full time rep for the company, just a point of contact for when the labour authorities come knocking.
You might choose a law firm or a specialist consultancy to do this job for you because they know the ins and outs of both labour and immigration law and can respond quickly to any queries. You have to put the rep’s details in the notification and keep them up to date for the whole posting period and also after that.
Sorting out the A1 Certificate for Social Security
Before your workers travel, you need to get the A1 certificate from the social security authorities in their home country before you start sending them off to Spain. This will sort out their social security coverage while they’re working away and is a mandatory requirement for all posted workers.
Most A1s are valid for up to 24 months – after that you’ll need to get a new one. If you don’t get one, it can get messy and the Spanish authorities can come after you for backdated contributions.
Making Sure Your Workers are Paid the Spanish Minimum and Other Working Conditions
You need to make sure your posted workers are getting the Spanish minimum wage – that’s currently €1221 per month or higher sectoral pay from applicable collective agreements – whichever is greater. Spain has strict labour laws that state a 40 hour working week and paid holiday – your posted workers have to get the same conditions as locals.
You are allowed to opt out of some holiday rules for short postings of under 8 days – but not for the construction or temporary agency sector – they get the full treatment from day one. If a worker is earning €2800 back home in Germany but the relevant Spanish collective agreement sets a minimum of €2100, no adjustments need to be made – but if a Portuguese worker is on €900 for the job, it needs to be topped up to at least the Spanish minimum.
Documentation, Language and Keeping RecordsEmployers in Spain Must Keep all Relevant Documents Handy\
Employers in Spain have to keep all the important documents easily available in Spanish. This means having employment contracts, payslips, proof of wage payment, work hours records, A1 certificates and any immigration permits for non-EU workers, all in Spanish. In fact, employers need to have both physical and digital copies of employment contracts on hand.
These documents have to be available in Spanish throughout the posting period – either at the workplace or through a contact person. In areas where there are multiple official languages, like Catalan in Barcelona or Basque in Bilbao, authorities might ask for the documents in those languages too. To be clear, employers have to keep these documents safe for two years after the posting wraps up, so that the Spanish authorities can check everything is in order or investigate any complaints. And let’s be frank, getting your paperwork in order is crucial – poor document keeping is actually one of the most common reasons for getting an administrative slap on the wrist – even if you’re paying the right wages and hours.
Long-Term Postings and When Short-Temp Becomes Long-Temp
In Spain, if a posting lasts over 12 months, you’ve got to start offering your workers more protections. When a posting exceeds 12 months, Spanish law says that almost all working conditions have to be in line with Spanish rules – long-term posted workers get a lot of the same protections as Spanish locals, excluding a few things like pension plans and some contract forms. Employers can apply to extend the standard rules up to 18 months, but after that point, most of the Spanish labour laws apply as normal.
And how do you count those months? Leave, public holidays, even short absences all count. If one worker replaces another in the same role at the same place, those months all add up towards the 12 or 18 month mark. Companies that keep rotating workers on and off the same project need to keep track of how long each worker has been there, to avoid accidentally triggering all these new rules.
Crossing those thresholds also brings tax and corporate risks into play. If a worker is in Spain for more than 183 days, they’re considered a tax resident and have to pay tax on all their income, not just what they earn in Spain. And if a company’s staff are constantly concluding contracts or working out of a fixed place in Spain, that company might be at risk of being considered a permanent establishment. An immigration law firm can help you get on top of all these rules with a combined posting, immigration and tax strategy – including Beckham Law assessments where that law lets you pay a lower income tax rate in Spain.
Sectors with Extra Post-Regulations
Certain industries like construction, road transport and temporary work agencies have extra posting requirements to keep on top of. Spanish labour inspectors are particularly active in these areas and expect to see all the right paperwork.
Construction and REA Registration
Construction companies need to register with the REA of the relevant region before sending workers to any construction site. Postings in construction longer than 8 days need to be registered with the REA, and you’ll need to show proof of occupational health training that’s recognised in Spain. Contractors and subcontractors also need to have a subcontracting book on site with all the REA numbers of the subcontractors. Sometimes the first posting can act as a provisional REA application, but formal registration needs more technical and safety documentation.
Road Transport and the IMI System
Law 45/1999 and Directive 2020/1057 have special rules for the road transport sector. Not every time a driver is in Spain counts as a posting – pure transit, for example, or certain bilateral transport services might be classed as ‘non-posting’. But cabotage and a whole load of other parallel transport services are considered postings.
Transport companies need to report postings through the IMI system before driving starts, and drivers need to carry proof of the posting declaration. Inspectors will be checking tachograph data, driving and rest times, and remuneration against Spanish minimum standards. The rules in transport are complicated and often change, so check in with us for the latest advice before you start shifting logistics models.
Temporary Work Agencies, Chain Postings and User Undertakings
If a temporary employment agency from another EU/EEA state posts workers to a user company in Spain, they need to show proof of home-state authorisation in the posting notification. Temporary agencies need to provide extra documents for postings, including a written declaration from the user company saying why they need temporary workers, how many, and for how long.
For temporary work undertakings, notification is compulsory from day one – there is no 8 day exemption, unlike in other sectors. In chain postings with lots of subcontractors, liability can trickle down to the Spanish user company if the foreign agency or subcontractor fails to do what the law says.
Non-EU Nationals, Immigration Permits and Tax Residence Worries
While the posting regime is all about labour law and social security, foreign companies posting non-EU workers have to follow Spanish immigration rules too. A Brazilian engineer who’s currently working in Portugal can be posted to Spain, but might need a work and residence authorisation depending on their nationality, role and how long they’ll be staying. General work permits need proof that the position is hard to fill locally – but if you’re moving someone from another company, or they’re a high-level expert, that requirement doesn’t apply.After racking up more than 183 days in Spain during a calendar year, many posted employees run the risk of becoming Spanish tax residents with all their worldwide income suddenly taxable in Spain. Fortunately, Spain has some pretty useful bilateral tax agreements in place that can help prevent double taxation and reduce the burden a bit. One of the key things to watch out for is the Beckham Law – it allows eligible individuals to pay a reduced income tax rate.
Meanwhile , the company itself has a pretty serious risk of having a permanent establishment in Spain if the folks who work for it tend to do business on a pretty regular basis there – eg. if a project manager is signing up clients from a rented office in Madrid for two whole years.
Inspections, Sanctions and How CarWay Migrate Keeps Employers Out of Hot Water
Imagine this : an ITSS inspector shows up at a Barcelona construction site at 8 in the morning, demanding to see the Subcontracting Book, A1 certificates, payslips and time records – but the contact person is nowhere to be found, and all the documents are in German. That’s the kind of situation where an inspection can quickly turn into a full-blown formal proceeding in no time.
In terms of penalties under Spanish law, they come in three flavours – minor, serious and very serious, and can rack up six figures in fines for systematic noncompliance or just plain old-fashioned fraud. Common problem areas include forgetting to submit the posting notification, missing A1 certs, not paying enough compared to what the locals are getting, not doing enough to keep people safe and not having any documents in Spanish.
If the authorities suspect a case of “fraudulent posting” – eg. a worker has been “posted” in all but name and is actually just part of the local organisation with no real link to the home company – they can bring the full weight of Spanish labour and social security law down on your head and go after back-payments.
CarWay Migrate helps out by acting as a local contact person, helping to prepare or review notifications, advising on local collective agreements, sorting out document translations and being on hand during on-site inspections. And trust us, getting some expert guidance early on is a whole lot cheaper than shelling out penalties – so why not reach out to an immigration law firm for a fixed-price consultation before your team even gets to Spain?
Frequently Asked Questions about Posting Workers to Spain
We’ve got some extra questions below aimed at HR bods, project leads and in-house lawyers who have to co-ordinate worker postings across Europe (and maybe aren’t totally up to speed on the Spanish system) .
Do I really need to notify Spain if my employee will only be working there for a few days?
Answer: yeah, pretty much – even if it’s just for a day. There is a super-narrow exemption if the posting will be less than 8 calendar days, but it doesn’t apply to construction, temp work agencies or some other regulated sectors. If you’ve got folks making short trips to the same project all year round, the authorities might just decide to treat them as a single posting, regardless.
What happens if the project in Spain gets extended beyond the original end date?
If that happens you need to update the posting notification and sort out an extension of the A1 cert from your home country’s social security folks straight away. If the total duration starts to look like it might be close to or more than a year, you need to start thinking about long-term posting rules and how to make sure your people are compliant – which can mean getting just about all the Spanish labour and conditions applied. Get on top of it early on, or you’ll end up scrambling to deal with the labour authorities and social security folks at the last minute.
Can a posted worker just switch to a Spanish residency or a different permit while already in Spain?
Well, it depends on nationality, timing and what kind of permit you’re applying for – eg if you’re a highly-qualified person or a digital nomad – but posted workers can sometimes change their status to a Spanish residence and work permit. The problem is it can affect social security, tax residence, and the employer’s legal compliance obligations – so it’s all pretty complicated.
How do postings work if your workers move between several autonomous communities in Spain?
Posting notifications get sent to the labour authority in the region where work is being done – so if a project moves from Madrid to Andalucia, you might need to submit a new (or updated) notification. Working conditions can vary because different collective agreements and languages apply across regions.
Are remote workers in Spain for a foreign EU company considered posted workers?
Generally speaking no – if someone relocates themselves to Spain and works for a foreign employer mainly from home, they’re probably just a resident worker in Spain from a labour and tax point of view. But since these situations raise a load of different issues (including Spanish tax residence, the need for employer registration in Spain and whether the digital nomad visa is the right choice), CarWay Migrate has loads of experience in getting these scenarios sorted out. We can even help you put together a visa, tax residence and employment structure that’s right for your company – which is way different from the posting of workers regime.
