
So, you want to start a business in Spain. The good news is that the days of endless, soul-crushing paperwork are mostly behind us. A much-improved online system makes it easier. But before you get into the details, you have one big decision to make right at the start.
Your first choice is this: will you operate as a self-employed person (an autónomo) or set up a limited liability company (a sociedad limitada or S.L.)? This decision impacts everything that follows, from your personal legal risk to the amount of admin work you'll face.
Autónomo or S.L.? Making the right call
Let's break down the two main paths for setting up your business in Spain.
Going the autónomo route is the simpler, faster option. Think of it as being a sole trader. You and your business are the same in the eyes of the law. This means your personal assets are on the line if the business runs into debt. It’s the top choice for most freelancers, consultants, and one-person operations.
Setting up a sociedad limitada (S.L.), on the other hand, creates a completely separate legal entity. Your personal liability, which is your legal responsibility for debts, is protected. It is limited to the money you put into the company. This is the path for businesses with bigger goals. Choose this if you plan to hire staff, get investment, or just want a solid wall between your personal and business finances.
Choosing your business structure in Spain
FeatureAutónomo (Self-Employed)Sociedad Limitada (S.L. - Limited Liability Company)LiabilityUnlimited. Your personal assets are at risk.Limited to the capital invested in the company.Setup Cost & TimeMinimal cost and can be set up in a few days.Higher costs (€600-€1,500+) and takes several weeks.Initial Capital€0. No minimum capital required to start.€1. As of 2022, the minimum is just one euro.Admin & TaxesSimpler. Quarterly IRPF (income tax) and IVA (VAT) returns.More complex. Corporate tax, annual accounts, notary visits.Best ForFreelancers, consultants, and solo entrepreneurs.Businesses planning to grow, hire, or seek investment.
Ultimately, your choice depends on your business model and your comfort with risk. For most solo ventures, starting as an autónomo makes the most sense. You can always convert to an S.L. later as your business grows.
This guide explains how to register a company, SL. For information on registering as an autonomo, check out the process here.

Obtain Your Digital Credentials for System Access
To register your company online in Spain, you'll need two essential digital credentials: your NIE number and a digital certificate. These serve as your digital proof of identity, crucial for accessing the system. Without them, you can't proceed with registration.
Acquire Your NIE Number
The NIE (Número de Identificación de Extranjero) is your unique ID for all activities in Spain, from opening bank accounts to filing taxes. It requires an in-person appointment at a national police station and completion of some paperwork:
- Book an Appointment Online: Schedule a cita previa at a station handling foreign documentation. Appointments fill up quickly, so book early.
- Complete the Forms: Fill out the EX-15 application form and 790 Código 012, paying a fee at a bank before your appointment.
- Declare Your Purpose: State a valid reason for needing a NIE, such as registering a company. Having a simple letter or business plan can be helpful.
Bring your passport, two passport-sized photos, and completed forms to your appointment. If everything is in order, you might receive your NIE immediately.
Tip: The NIE is crucial for your activities in Spain. Book your appointment as soon as possible to avoid delays.
Obtain Your Digital Certificate
After securing your NIE, your next step is to get a digital certificate, which acts as your electronic signature for accessing government services online. Obtain it through the Spanish Royal Mint, FNMT:
- Request a Code Online: Visit the FNMT website to initiate your application. Use the same computer and browser throughout the process.
- Verify Your Identity in Person: Bring your NIE, passport, and code to a registration office for identity verification.
- Download and Install the Certificate: After verification, you'll receive an email to download and install the certificate on the same computer.
This certificate is crucial for the entire online business registration process. For detailed steps, refer to our guide on obtaining a digital certificate in Spain.
With both the NIE and digital certificate, you can start building your company.
Online Company Registration with CIRCE and PAE
With your digital ID ready, you can fully register your company online, avoiding visits to multiple government offices. The platform for this process is CIRCE (Centro de Información y Red de Creación de Empresas), which directs your company information to the appropriate departments.
Access the System Through a PAE
You don't directly log into CIRCE; instead, you use a PAE (Punto de Atención al Emprendedor), or Entrepreneur Service Point. These are authorized offices, such as:
- Accountants
- Law firms
- Chambers of commerce
- Public administration offices
A PAE professional assists in gathering information, completing forms, and submitting them through CIRCE. This approach ensures expert review of your application. Locate a PAE near you through an official directory.
The CIRCE and PAE system significantly reduces registration time, previously taking weeks, now down to a few days, making Spain more business-friendly.
The Single Electronic Document (DUE)
Central to this process is the DUE, or Documento Único Electrónico, an online form for entering all company details once. Your PAE submits it via CIRCE, which distributes it to relevant departments:
- Reserve Your Company Name with the Central Mercantile Registry.
- Register for Taxes with the tax agency (AEAT).
- Enroll the Company Administrator in the social security system.
- Book a Notary Appointment for official signatures.
This integrated approach saves time and reduces errors from repetitive data entry.
Using the Virtual PAE
If confident, you can use the virtual PAE, or 'Ventanilla Única', to handle the process yourself. This allows direct submission of the DUE on the CIRCE portal. However, first-time founders and expats might prefer using a physical PAE for guidance.
With this digital update, setting up an S.L. in Spain is quick, often completed in 1-3 business days. Learn more about the speed of Spanish company formation at Lawants.
Final Steps: Notary and Commercial Registry
After navigating the online process, a few in-person steps remain to legally establish your company, involving the public notary and the Commercial Registry.
Notary Appointment and Signing
Once your PAE sends the DUE, schedule an appointment with a public notary. All founders must attend to sign the public deed of incorporation (escritura de constitución), detailing:
- Company name and address
- Founders' names
- Company bylaws
- Initial share capital
The notary verifies identities and ensures legal compliance. This in-person signature is a key legal step to prevent fraud.
From Notary to Commercial Registry
Post-signing, the notary sends the deed to the Commercial Registry (Registro Mercantil), the official company database. The Registry verifies uniqueness and legal compliance before registering your company, which assigns your definitive NIF (Número de Identificación Fiscal), your permanent business tax ID.
With your definitive NIF, you're ready to operate, open a bank account, and hire employees, marking the start of your business in Spain.
Activating Your Business for Tax and Social Security
Your company is registered, but you must activate it with Spain's tax and social security offices before issuing invoices.
Registering with the Spanish Tax Agency (AEAT)
Notify the tax agency that your company is operational by filing a census declaration (declaración censal), typically Form 036. This form details:
- Business Activities: Select a code from the IAE (Impuesto sobre Actividades Económicas) list.
- Tax Obligations: Register for VAT (IVA).
- Company Details: Confirm your office and definitive NIF.
This form can be filed online with your digital certificate, placing you on the tax map for quarterly IVA returns.
Enrolling in Social Security (Seguridad Social)
Register as the company administrator in the RETA (Régimen Especial de Trabajadores Autónomos). Even as an S.L. owner, you're considered autónomo for social security purposes. This registration is mandatory before trading.
Pay a monthly cuota de autónomo, based on projected earnings, for access to healthcare, sick leave, and a future pension. Set up a direct debit for these contributions through the mandato SEPA de la Seguridad Social.
With these steps completed, you're ready to operate legally in Spain from day one.
Final practical necessities
With the main government registrations done, there are just a couple of final admin tasks to sort out.
- Open a dedicated business bank account: While not always a strict legal requirement, it’s a very smart move. A separate account keeps your business and personal finances clean. This makes bookkeeping much simpler and keeps you on the right side of the tax agency.
- Get a digital certificate for the company: You used your personal digital certificate to create the S.L. Now the company is its own legal entity and needs its own ID. Get a Certificado de Representante de Persona Jurídica (a certificate for a legal entity representative). This allows you to file taxes and deal with government websites on your company’s behalf.
Once you have ticked these boxes, you have officially finished the process to register a company online in Spain. Your business is fully activated, compliant, and ready to start trading.
Costs, timelines, and common mistakes to avoid
So, what does it actually take to get your Spanish company off the ground? Let's talk real numbers, realistic timelines, and the classic mistakes that can trip you up.
The budget: what it really costs
Setting up a sociedad limitada (S.L.) online has a clear, predictable price tag. There are no hidden surprises if you know what to budget for.
- Company Name Certificate: First, you will need to reserve your company name. This is a small but crucial step that costs around €15-€20 at the Central Mercantile Registry.
- Notary Fees: This is your biggest cost, typically between €400 and €800. The final fee depends on the complexity of your company's bylaws (estatutos) and share capital.
- Commercial Registry Fees: Expect to pay another €100 to €200 to get your company officially registered in the commercial registry.
The big news is the change to share capital. The old requirement of €3,000 upfront is gone. You can now legally form an S.L. with just €1. But there’s a catch: until the company's value reaches the €3,000 threshold, the law requires you to put 20% of all profits into a legal reserve fund.
The timeline: how long to expect
Using the online CIRCE/PAE system makes things much faster than the old paper-based way. If you have all your documents in order, you can move surprisingly quickly.
A realistic timeline to register a company online in Spain is between 4 to 6 weeks. Most of this time is not for the online registration itself, which only takes a few days. The real delays come from administrative hurdles like securing your NIE appointment.
Your S.L. setup questions, answered
We get a lot of questions about the details of setting up a company in Spain. Here are a few of the most common ones we hear.
Can you set up a spanish company entirely from abroad?
Yes, you can, but you cannot improvise it. It requires careful planning.
The key is granting a power of attorney (poder de representación) to someone you trust in Spain - usually your lawyer or accountant. This legal document authorizes them to act for you. They can handle critical steps like getting your NIE and signing the company deed at the notary for you.
You will still need to get your own digital certificate. You can sometimes do this at a Spanish consulate in your home country, but be warned: the process is often very slow.
What’s the difference between a temporary and permanent NIF?
Right after you sign the company deed, the tax agency issues a temporary NIF (Número de Identificación Fiscal). Think of it as a provisional tax ID. It is crucial because it lets you immediately open the company bank account and deposit your share capital.
Once your new company is officially logged in the Commercial Registry (Registro Mercantil), they will issue the definitive, or permanent, NIF. This is your company's official, lifelong tax ID for all future operations.
What are the ongoing monthly costs for a spanish S.L.?
Setting up is just the first step. You need to budget for the ongoing costs to keep your S.L. compliant.
These are the main recurring expenses you can expect:
- Accountant fees: Unless you are a tax expert, you will need an accountant for bookkeeping and quarterly tax filings. This typically costs between €100 and €300+ per month.
- Social security: The company administrator must pay into the social security system. This is called the cuota de autónomo, and it starts with a reduced flat rate of €80 per month for the first year.