Tax residence is not the same as immigration residence.

First classify your position

Spain can treat you as tax resident under more than one connection, including the calendar-year 183-day test and the centre of economic interests. A residence card does not decide tax residence by itself, and a tax treaty can matter when two countries claim you.

List employment, freelance invoices, company ownership, pensions, investments, property and your partner’s location before speaking to an adviser. Keep Spanish and origin-country filing obligations in the same plan.

Beckham regime: a timed election

The special regime for workers, professionals, entrepreneurs and investors displaced to Spain uses Modelo 149 for the option and Modelo 151 for the annual return. The Tax Agency’s current calendar states a six-month option window from the relevant start of activity; missing it can remove the regime. Eligibility is fact-specific, including the prior non-residence condition and the way the move occurred.

Do not describe Beckham as a universal flat-tax pass or assume every freelancer qualifies. Compare the regime with ordinary IRPF, foreign income, social security and treaty consequences.

Autónomo mechanics

Register the activity with the Tax Agency and Social Security at the correct start date, issue compliant invoices, reserve for quarterly filings and check whether VAT/IVA, withholding, Modelo 130/303 or other models apply. Your gestor should tell you which models apply to your activity, not hand you a generic expat checklist.