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To register as self-employed in Spain, coordinate the tax registration with Hacienda and enrolment in Social Security as an autónomo. We help freelancers and sole traders check the activity, start date, work permission where relevant and ongoing tax duties. Tell us where you will work and where your customers are based so registration and VAT treatment match the actual business.
Choose the activity and tax position
The activity must be classified under the appropriate IAE heading and tax census data must reflect workplace, start date, VAT and withholding obligations.
Cross-border services, online sales, professional activities and regulated trades can each require additional registrations or licences.
Hacienda and Social Security registration
The tax census registration and RETA enrolment must be coordinated so that dates and activity details match. For isolated assignments, our guide to occasional freelance work and invoicing in Spain explains the separate tax and social-security checks.
Contribution rules depend on forecast and actual net income, while new autónomos may qualify for reduced contributions if the conditions are met.
Documents and evidence
A foreign applicant may also need an NIE, Social Security number, residence or work permission, digital certificate and business premises documentation.
NIE and identity document
Spanish Social Security number
Business activity and address details
Bank account for contributions
Professional qualification or licence if regulated
Invoices, returns and ongoing duties
Invoices must contain the legally required details and apply Spanish VAT and IRPF withholding correctly where relevant.
Quarterly VAT, advance income-tax and withholding returns may be required, followed by annual summaries and the personal income-tax return.
Practical risks and individual review
Late registration, incorrect VAT treatment, private use of business expenses or failure to monitor electronic notices can lead to assessments, surcharges and penalties.
Requirements, appointment availability and administrative practice can differ by province and personal circumstances. We check the current competent authority and the evidence required before submission.
Useful official resources
Official requirements, fees and procedures can change. The competent authority and current rules are checked for each individual case.
Questions about Self-Employed in Spain – Autónomo
Must every freelancer register as autónomo?
Regular economic activity normally requires tax registration and often RETA enrolment; individual exceptions need advice.
Can I invoice before registering?
Registration timing should be settled before beginning or invoicing the activity.
Which quarterly returns apply?
That depends on VAT, withholding, income-calculation method and the type of clients and services.
Can a non-EU citizen become autónomo?
Yes if their immigration permission authorises self-employment and the other requirements are met.
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Describe the matter, location and relevant deadline so that we can assess the appropriate next step.
Contact us →Discuss your case in English
Describe your activity, expected start date, where you will work and the countries where your customers are based. We will review the registrations, VAT treatment, licences and ongoing support your situation requires. Before engaging support, specify whether it covers registration only or also invoices, recurring returns and electronic notices. Professional fees, Social Security contributions and tax payments are separate costs. Agree who supplies records, approves filings and monitors deadlines.
Important: This page provides general information and does not replace individual legal, tax, labour, medical or technical advice. Authorities decide applications and disputes independently. Requirements and practice may change.