RSUs in Spain. In Spain an RSU is not a legal category: it is a contractual promise to which rules written for something else are applied. The characterisation comes out of your plan document, not out of the name of the instrument, and that is where two colleagues with the same grant end up with two different returns.
A US share plan arrives in three documents that hardly anyone reads together. There is the Equity Incentive Plan, the general rulebook, which can run to forty pages; the Award Agreement or Grant Agreement, which is your individual contract; and the Grant Notice, the one-sided sheet with the number of shares, the price and the dates. People keep the third and lose the first two. The trouble is that the treatment under IRPF, the Spanish personal income tax, is decided in the first two, because that is where the clauses sit that say exactly which right you hold, and the tax falls on rights, not on labels.
This guide is a reading protocol. It does not explain how each milestone is taxed (that is in the three moments of an option). It explains what to underline in the document and why that clause, and not some other one, can change the outcome.
Before you underline anything: the plan does not talk about your taxes
Almost all of these documents carry a section headed Tax Consequences or Section 409A. It is written by the company's US adviser and it refers to US federal tax. It is not an opinion on Spanish income tax, it does not bind the Spanish tax authorities and, when the employee lives in Spain, it often describes a result different from the one that will actually happen here.
The case we see most often is incentive stock options. In the United States they enjoy favourable treatment on exercise; in Spain that category simply does not exist, and what applies is the general rule in article 17.1 of the Spanish Income Tax Act, which treats the benefit as employment income. We go through it in the comparison ISO or NSO. We do not advise on US tax law: if your case also has consequences there (because you have ties to the United States, because some working days were spent there, or because the plan requires an election before the IRS), you appoint the adviser in that country yourself and we coordinate with them.
Clause 1 · What the instrument really is
The first step is not reading the title; it is reading the definition. There are plans called Stock Option Plan that grant units, and plans that call cash entitlements options. The question to answer is whether at the end of the road you receive shares or you receive money, and whether you have to pay a price to receive them.
| If the document says | Look for this |
|---|---|
| Option, right to purchase, exercise price | There is an exercise price: the income will be the difference between the value and the price paid |
| Unit, right to receive shares, no consideration | You pay nothing: the income will be the full value of what is delivered |
| Settled in cash, cash equivalent, appreciation right | There are no shares: the income is cash, not in kind. It is covered in phantom shares and SARs |
| Warrant, bon de souscription | You have to decide whether you receive it as pay or subscribe it by paying its value: warrants and BSAs |
Clause 2 · Transferability
This is the clause with the greatest effect, and it is usually tucked away under the heading Transferability or Non-Transferability of Award. If the option cannot be sold, assigned, pledged or transferred except on death (which is the usual wording), there is no asset with a value of its own in the employee's hands, and the income does not appear until exercise. If the plan allowed it to be transferred, the analysis changes at the root, because then something with its own value has been handed over at the moment of grant.
Many plans forbid transfer and then, in the next sentence, allow assignments to family trusts, to companies owned by the employee or "with the consent of the committee". A broad exception weakens the argument that the right is strictly personal to you. It is better to have it identified before the tax authorities identify it.
Clause 3 · The vesting schedule
Vesting schedule, cliff, vesting commencement date. This is not only where you learn when you vest. It is where the income's generation period is set, and that period decides whether you can argue for the 30 % reduction in article 18.2 of the Spanish Income Tax Act, which is reserved for income generated over more than two years. A plan vesting monthly from the first month and a plan with a cliff of two years and one day lead to very different conversations.
Write down three dates: the start of the count, the cliff and full vesting. And write down whether the schedule is time-based, performance-based or mixed, because a tranche conditioned on targets has a generation period that can be disputed.
Clause 4 · What happens if you leave
Termination, post-termination exercise period, good leaver and bad leaver. The usual window for exercising after you leave the company is short, and it is the clause that most often forces an exercise in a bad tax year. If the employee leaves in September and the window closes in December, the spread is added to a full year of salary and to the severance payment, if there was one. When the exit is negotiated, this clause should be negotiated as well: lengthening the window costs the company nothing and can be worth a good deal.
Check also whether there is a buy-back. A repurchase right at nominal value or at exercise price on departure turns what looked like wealth into something much more fragile, and it is a serious argument when the valuation is being discussed.
Clause 5 · Change of control
Change of control, acceleration, assumption or substitution, cash-out. These are three different events with three different consequences: vesting is accelerated, the buyer replaces your rights with its own, or you are paid out in cash. The third usually comes with part of the price held back (an escrow) and with target-linked top-ups (an earn-out), and then the timing of each tranche has to be worked out separately, including the possibility of treating it as a deferred-price transaction under article 14.2.d) of the Spanish Income Tax Act. None of that is automatic, and it has to be argued and supported.
Clause 6 · Restrictions on sale
Lock-up, right of first refusal, co-sale, drag-along, transfer restrictions. If the shares you receive cannot be sold freely, their value is not the same as that of a freely tradable share. That discount can be defended, but nobody grants it on their own initiative: it has to be documented and quantified, and that is the ground covered in market value when the company is not listed.
Clause 7 · Who pays and who withholds
Find out whether the plan is granted by the US parent or by the Spanish subsidiary, and whether there is an agreement recharging the cost to the subsidiary (a recharge agreement). A good deal depends on that, above all whether there is a payer in Spain obliged to make the payment on account that an employer normally withholds from pay. If there is not, you pay the whole tax yourself in your annual return, with nothing deducted along the way, and you need to set it aside from the day of exercise. Look also at whether the plan lets the company keep back shares to cover taxes (net settlement, sell to cover) and which tax system that withholding refers to, because very often it covers the US tax and not the Spanish one.
Clause 8 · Who the offer is made to
The €12,000 exemption in article 42.3.f) of the Spanish Income Tax Act requires the offer to be made on the same terms to all the employees of the company, group or sub-group. That is why it matters whether the document says all employees or selected key employees. A discretionary plan for senior staff, which is the most common kind, does not fit the general exemption. The instrument that usually does fit is the ESPP, and it has its own guide.
Clause 9 · Governing law, forum and unilateral amendment
Almost always Delaware or California, with submission to their courts. That does not change the Spanish income tax, but it changes two practical things: what can be claimed if the company fails to perform, and how far the power of the Administrator or the Committee to amend the plan reaches. A broad unilateral amendment clause means that what you read today may not be what applies tomorrow, and it is worth knowing before you take irreversible decisions with that paper in your hand.
A plan read from start to finish, in writing
This is what a full reading looks like when it is delivered: twelve pages with the background of the case, the characterisation of each instrument, the path of each milestone with figures and an annex with the administrative doctrine consulted. It is a real report from this firm, anonymised, and it is written in Spanish.
How we read it
First the Grant Notice, to know what volume we are talking about and on what dates. Then the plan's definitions, which is where each term's real meaning lives. Then the nine clauses above, in that order. And only at the end the numbers, because calculating before characterising is the quickest way to calculate wrongly.
That reading produces a document setting out how the income is characterised, the calendar of milestones with their likely amounts, what has to be set aside, and what is disputed, with its risk flagged. We do not guarantee an outcome: in this area there is no specific Spanish rule, and much of the criterion is built case by case. What we do is tell you in writing where the doubt lies and which argument supports your position.
If you have the plan to hand, the form for this service asks just enough to tell whether the case has somewhere to go, and the page on stock options and RSUs sums up the general scheme.