Why equity people should care more about Beckham than salary people
The Beckham debate usually revolves around salary and the crossover point. For tech relocators with equity, that misses the two clauses that matter most. First: RSUs vesting while you are under the regime are employment income at the flat 24% (up to €600,000/year) — against ordinary progressive rates that reach 47% and beyond precisely in the years when large grants vest. Second, and less known: under Beckham you are taxed on Spanish-source income only, so capital gains on foreign-custodied shares sit outside Spanish tax entirely. Vest at 24%, and the later appreciation of those shares — held at a US broker — can escape Spanish taxation for the life of the regime. For a senior engineer with meaningful equity, these two clauses are routinely worth more than the salary arithmetic.
The ordinary-regime contrast
Without Beckham, Spain treats equity the way it treats everything: worldwide. Vests join your salary at progressive rates (a large vest year easily lands in the top brackets); subsequent gains are savings income at 19–30% wherever the shares live; and the broker account itself likely triggers form 720 reporting above €50,000. One mitigation exists for options (not RSUs): the 30% reduction for multi-year compensation, capped and condition-laden. The regime gap on a four-year, €400,000 grant is not marginal — it can approach six figures over the vesting schedule.
The traps in the fine print
Three, in ascending order of expense. Pre-move grants: the portion of a vest attributable to work performed before arriving can be claimed by your previous country too — the US, for instance, sources RSUs to where the work was done, so a grant earned half in California vests with a Californian claim attached; treaty credits repair it, but the paperwork does not do itself. Double-trigger RSUs and IPOs: a liquidity event that vests years of accumulated grants in one Spanish tax year is the single best reason to be under Beckham's flat rate — and the single worst year to have let the six-month election window pass. The €600,000 line: above it, Beckham's rate is 47% — big-exit years can still spill over; modelling the vest calendar against the cap is not optional at scale.
The analysis
Equity compensation turns the Beckham decision from a rate comparison into an option-pricing problem. The regime's six-year window is most valuable exactly when vests are largest and least predictable — which argues for electing it even at salaries near the crossover, because the optionality on future vests and exempt foreign gains is worth more than a small annual overpayment on base salary. The reverse also holds: an engineer whose equity has mostly vested, or whose employer is Spanish (making gains Spanish-source), loses the regime's best clauses and should run the plain crossover numbers.
The meta-lesson mirrors the rest of this site's expat series: Spain does not have one tax system for foreigners, it has a menu — and equity holders are the group for whom reading the menu carefully pays best. Six months to choose, six years of consequences, and a vest schedule that does not wait.
General information under 2026 rules — not tax advice. Equity taxation depends on grant terms, sourcing and treaties; large positions warrant professional cross-border review.