Registering as Autónomo in Spain: A Step-by-Step Guide for Foreigners

Working for yourself in Spain, as an autónomo, is a popular choice for freelancers, consultants, tradespeople and small business owners. For foreigners, the process has one extra layer: your immigration status must allow self-employment. This guide explains the main steps, the obligations that follow and the mistakes that new self-employed workers make most often.

Step 1: Check that your permit allows self-employment

Before anything else, look at your residence authorisation. Some permits, such as long-term residence, allow you to work for yourself without further formalities. Others authorise only salaried work, and you may need to obtain or modify an authorisation to work as a self-employed person. Starting an activity without the right permission can create problems for your future renewals, so confirm this first.

Step 2: Get your tax identification

You will need your NIE, the foreigner identification number, which appears on your residence card. A digital certificate or a Cl@ve account is also very useful, because most procedures with the Tax Agency and Social Security are now done online.

Step 3: Choose your activity and structure

Decide what you will sell and how. Most individuals start as a natural person, the classic autónomo, because it is simple and inexpensive. Later, if the business grows or the risks increase, you may consider a limited company. You must also choose the tax activity code that best describes your work, since it determines your tax treatment and some of your obligations.

Step 4: Register with the Tax Agency

You register your activity by submitting the census declaration, known as modelo 036 or 037. This informs the Tax Agency of your activity, your address and your tax regime, including whether you charge VAT. Do this before you start invoicing.

Step 5: Register with Social Security

Every self-employed worker must join the special regime for self-employed workers, called RETA. Registration gives you access to health care and pension rights, and it also starts your monthly contributions. Since 2023 those contributions are based on your expected net income, with different tiers, and you can adjust your tier several times a year if your earnings change. New self-employed workers can usually benefit from a reduced flat rate for the first twelve months, which has recently been around 80 euros a month, although the conditions can change.

Step 6: Local licences and professional requirements

If you will have premises open to the public, or work in a regulated profession, additional licences, insurance or professional registrations may be required. Ask your town hall and your professional association before signing a lease or buying equipment.

Your obligations once you are registered

• Invoices. You must issue invoices that comply with the rules and keep them for several years.
• VAT. Most activities charge VAT and file a quarterly return, modelo 303.
• Income tax. You usually make quarterly advance payments, for example with modelo 130, and file the annual return.
• Social Security. Your contribution is paid every month, even in months when you do not invoice.
• Accounting records. Keep income and expenses in order, separated from personal spending.

Costs to plan for

Registering is generally free, but running an activity is not. Budget for your monthly Social Security contribution, the fees of an accountant if you use one, professional insurance where it is needed, software, a business bank account and any licences for your premises. It is also wise to set aside a percentage of every payment for taxes so that the quarterly bills do not come as a surprise.

Working with clients abroad

Many foreigners keep clients in their home country. Invoicing customers in other European Union countries has its own VAT rules, and sometimes requires registration in a special register of intra-community operators. The rules for clients outside the European Union are different again. Ask before you issue your first foreign invoice.

Tips for the first year

Open a separate bank account for the business, save every invoice and receipt, and review your contribution tier at least twice a year. Learn which expenses are deductible for your activity and keep proof of each one. Put the filing dates in your calendar, because late returns can lead to penalties even when you owe little or nothing.

Common mistakes

The first is starting before the permit allows it. The second is delaying the registration in Social Security, which can lead to surcharges. Others are mixing personal and business money, forgetting quarterly filings, choosing a contribution tier that does not match real income, and paying for deductions without an invoice. A good accountant, or a short consultation at the start, usually costs far less than fixing these problems later.

Do you need an accountant?

It is not mandatory, but many new autónomos hire one during the first year. A gestor can prepare your registrations and quarterly filings and explain clearly what you can deduct, which often saves more than it costs.

Is being an autónomo right for you?

Being self-employed offers freedom, but it also means that you are responsible for taxes, contributions and paperwork. Before you register, estimate your monthly costs and income realistically, including the months when work is slow. If you are unsure which permit or activity is best, our team can help you choose and take care of the registrations from the first day.

This article is general information and not legal advice. Immigration rules, fees and processing times change, so always confirm the current requirements before you apply.