Lukas is a German engineer who has spent four years in Málaga under the article 93 regime (the special regime for workers who move to Spain, known as the Beckham regime). In June 2026 he filed his Modelo 151, the annual return under that regime, for 2025, with 11,000 euros to pay because of a very profitable sale of shares in a Spanish company. He chose to pay in two instalments: he paid 60%, 6,600 euros, and set up a direct debit for the remaining 40%, 4,400 euros, for November. In September he moves to Dubai with a new contract and, on leaving, closes his Spanish account. The November charge will bounce.
Lukas has not decided not to pay. He has simply done something that causes non-payment without realising it. His case shows how the collection chain works when the debtor is no longer in Spain, and why it is worth cutting it early.
What happens on the day the charge bounces
When the direct debit for the second instalment goes unpaid, that part of the debt, the 4,400 euros, enters the enforcement period. The 6,600 euros paid in June are settled and unaffected. From that moment on, the cost depends on when he pays:
| When | Surcharge | Amount on 4,400 euros | Late-payment interest |
|---|---|---|---|
| Before the providencia de apremio (the formal enforcement order) | 5% | 220 euros | No |
| After the order, within its deadline | 10% | 440 euros | No |
| After that deadline | 20% | 880 euros | Yes |
If Lukas pays as soon as he finds out, he loses 220 euros. If he does not find out, because he no longer checks his Spanish post or his electronic mailbox, the chain carries on by itself.
The complete chain, told with dates
- November 2026: the charge bounces. The 4,400 euro debt enters the enforcement period and the 5% surcharge accrues.
- Weeks or months later: the Agencia Tributaria issues the enforcement order and notifies it. The surcharge goes to 10% and a short window opens to pay: until the 20th of the month or the 5th of the next, depending on the day of notification.
- Once that window has passed: a 20% surcharge plus late-payment interest from the day after the original due date.
- Seizure: the Agencia Tributaria looks for assets and rights in Spain. First, money in accounts; then receivables, securities, income, salaries and property.
How those deadlines are counted when notification is electronic is in counting deadlines and electronic notification. The key point is that, for anyone obliged to receive electronic notifications, a notification not opened within ten days is treated as delivered.
What Hacienda can seize from someone who has already left
The debt does not disappear because the debtor changes country. What changes is where Hacienda (the Spanish tax authority) can collect it with its own means:
- Whatever is left in Spain: an account that is still open, a property, shares with a Spanish broker, a final settlement still owed by his former employer.
- Refunds: any future refund, from a return or from an amount paid in error, is offset against the debt.
- Outside Spain: the tax administration has mechanisms for mutual assistance in recovery, broad within the European Union and more limited with other States. With the Emirates, their scope depends on the instruments applicable in each case.
The real risk for Lukas is not so much seizure from Dubai as the day he comes back: the debt, with its surcharges and interest, stays alive until it becomes time-barred, and each collection action restarts the four-year period. Many people discover it when trying to buy a house in Spain years later, or when applying for a certificate showing they are up to date with their taxes.
Anyone leaving the country with a second 151 instalment outstanding should pay it in advance or keep the debited account open until November. And it is worth leaving an address or a representative for receiving notifications: without one, notifications follow their course and deadlines run all the same.
What if instead of a bounced charge it is a 151 left unpaid?
Lukas's case is the quietest one. There is a more frequent one: someone who files the 151 on time, without paying and without asking for anything, because they do not have the money in June. For them, the whole debt enters the enforcement period on 1 July, with the same surcharges of 5%, 10% or 20%. There is no recargo under article 27 (the surcharge for filing late unprompted) and no penalty, because the return was filed on time; the cost is only that of enforcement. And someone who does not file at all adds to all that the risk of an assessment with a penalty of 50% to 150% if the tax authority gets there first. From worst to best: not filing, filing without paying, filing with a deferral application.
What is not your debt even if it appears
Sometimes the non-payment comes not from the taxpayer but from the payer. If your company withheld 24% but did not pay those withholdings over to Hacienda, you can still deduct them in your 151: what was withheld counts as paid by you, and the debt for not paying it over belongs to the company, not to you. Keeping your payslips and the withholding certificate is the proof.
Nor is your spouse's debt yours, even if they are also in the regime. Each of you files and pays your own 151, and the Agencia Tributaria cannot collect from one what the other owes for this tax. It is another matter whether one spouse's debt ends up affecting assets the couple own in common, depending on their matrimonial property regime, which is a question looked at separately.
It is different if the company did not withhold what it should have. In that case you deduct what was actually withheld, and the difference comes out to pay in your 151. If you do not pay it, it enters the same chain as Lukas's debt.
When the problem is cash, not forgetfulness
If Lukas had known in June that he would not be able to pay the second instalment, he had a better way out: file the 151 with an acknowledgement of debt and ask for a deferral or instalment plan. With 11,000 euros no guarantee is required, because it is below the 50,000 euros set by Order HFP/311/2023, and applying on time prevents the debt from entering the enforcement period while the application is processed. Under the administrative approach applied since 2023, individuals can obtain longer terms than the usual twelve months in automated applications.
Even with the debt already in enforcement a deferral can be requested. It does not avoid the surcharge already accrued, but it puts the payments in order and prevents the chain from reaching the sale of seized assets. What that schedule looks like in practice is in the realistic calendar of an instalment plan.
If you have a 151 debt outstanding, or are about to leave Spain with the regime still running, the Beckham regime form collects your situation and the dates that matter. Nobody can promise how the tax authority will act in each case, but the debt can be closed before it grows.
What to review when leaving the regime through the departure gate
Lukas's departure has other consequences that have nothing to do with collection. As he leaves in September, he will have spent more than 183 days of 2026 in Spain and the normal position is that he is still resident that year: he will have one last 151, filed in June 2027 even though he already lives in Dubai, which will also have to be paid. From 2027, if he keeps something in Spain, such as a rented flat, he will be taxed on it as a non-resident. How the regime ends and what is filed in each case is in leaving the article 93 regime. It is the conversation to have before moving, not afterwards.
What people ask us about unpaid Modelo 151 debts
Can they seize my assets over Modelo 151?
Yes, and no judge needs to be involved: the tax administration collects by itself. First the enforcement surcharge, then the providencia de apremio, and then the seizure of accounts, refunds, salaries or property. With Modelo 151, what breaks that chain is acting before the enforcement order arrives, usually by asking for a deferral.
Does the 24% apply to everything I earn?
No. It applies to employment income up to 600,000 euros; above that, the rate goes up. And capital gains and investment income follow their own scale.