Rafael runs a restaurant in Seville as a self-employed person, with six employees on the payroll. His Modelo 111 for the third quarter of 2026 comes to 4,200 € of withholding. The summer has not gone as he expected, so on 20 October he files the return, ticks the acknowledgement of debt option (reconocimiento de deuda) and pays nothing. He wanted to know what would happen from then on, in what order, and how much each week he let slide would cost him.
Filing without paying was, to begin with, the right thing to do. What comes afterwards follows a path set by law, with dates and percentages that can be calculated in advance.
On the 21st, the debt changes period
A self-assessed return filed on time without payment is not an offence. What happens is that the debt moves, on the day after the deadline, from the voluntary period to the enforcement period (periodo ejecutivo). From that moment the enforcement-period surcharges of article 28 of the Ley General Tributaria, Spain's General Tax Act, accrue, and they depend on when payment is made:
| When payment is made | Surcharge | On 4,200 € | Interest |
|---|---|---|---|
| Before receiving the enforcement order (providencia de apremio) | 5 % (enforcement) | 210 € | No |
| Within the period the enforcement order opens | 10 % (reduced enforcement) | 420 € | No |
| After that period | 20 % (ordinary enforcement) | 840 € | Yes, from 21 October |
The period given by the enforcement order depends on the day it is notified: if it arrives between the 1st and the 15th of a month, you have until the 20th of that month; if it arrives between the 16th and the last day, until the 5th of the second following month. In practice a few weeks usually pass between filing and the enforcement order, and they are the cheapest weeks of the whole process.
The chain of seizures and where it starts
If the enforcement order's period expires without payment, the Agencia Tributaria seizes assets itself, without a judge and without any further warning. Article 169 of the Act sets an order, always keeping the seizure proportionate to the debt: first money in accounts, then credits and rights that can be realised in the short term, then salaries and pensions, and later property and other assets. In a hospitality business that means, in practice, the account into which takings are paid and, often, what the bank pays out for card payments, which are debts the bank owes the restaurant.
Rafael's problem is not just losing the amount: a seizure on the operating account the day before payroll is paid brings the business to a halt. And because he is an individual, he is liable for the debt with all his assets, not only with the restaurant's.
Why a deferral is no way out
With almost any other debt, the advice at this point would be to apply to pay in instalments (an aplazamiento) before the enforcement order. Not with the 111: withholding is a debt that cannot be deferred under article 65.2 of the Act, and the application is declared inadmissible and treated as never filed, in the enforcement period too. It does not even suspend the procedure while it is being processed. It is explained in the debts that cannot be deferred.
That leaves two real options: pay within the 5 % or 10 % window, even at the expense of some other item, or negotiate bridge financing with your own bank. For Rafael, paying on 15 November, before the enforcement order reached him, meant a 210 € surcharge; waiting for the seizure would have meant 840 € plus interest and the account frozen.
If you are in a similar position and do not know which band you are in, tell us in the self-employed form and we will tell you what date you have and which options remain open.
Rafael's calendar, week by week
To see the sequence with dates, this would be the most likely course if Rafael did nothing after filing on 20 October:
- 21 October. The 4,200 € debt enters the enforcement period. From that day, any payment carries at least 5 %.
- The following weeks. The Agencia Tributaria issues the enforcement order. Until it is notified, paying costs 210 €.
- Notification of the enforcement order. If it arrives, say, on 10 December, Rafael has until 20 December to pay with 10 %: 420 €.
- 21 December. The surcharge goes up to 20 %, 840 €, plus late-payment interest from 21 October, and the Administration can now issue seizure orders (diligencias de embargo).
- January. The fourth-quarter 111 arrives, with the withholding on the December extra month's pay. If that is not paid either, the two debts pile up in the same case file.
Electronic notifications deserve a note: if Rafael is required to receive them that way, or signed up voluntarily, the enforcement order is deemed notified when he opens it or, if he does not open it, ten calendar days after it is made available to him. Not opening the mailbox does not stop the clock; it brings it forward. It is explained in how deadlines are counted and electronic notification.
And the employees: what do they lose?
Nothing. This is one of the ideas that is at once most reassuring and most unsettling. The six workers will deduct in their income tax return the withholding shown on their payslips, whether Rafael paid it over or not. Hacienda's relationship with them is untouched; the whole debt falls on the payer. That is why the withholding certificate they are given in January has to show what was really withheld from them: altering it to match what was paid in would be a far more serious problem than the debt.
What almost nobody tells you about unpaid withholding
The first hidden consequence is the certificate of being up to date with tax obligations (certificado de estar al corriente). A debt in the enforcement period, not deferred or suspended, prevents you from getting it. For a restaurant applying for a grant, renewing a terrace licence or contracting with a public body, that certificate is a requirement that is asked for without warning, and it cannot be obtained until the debt is paid.
The second is set-off by the tax office on its own initiative. If Rafael has an income tax refund pending, the Agencia Tributaria will apply it to the 111 debt before paying it to him. He will find out when the refund does not arrive and a set-off decision arrives instead.
The third is scale. Systematically failing to pay over withholding has a criminal ceiling: the Código Penal (the Criminal Code) punishes tax fraud above 120,000 €, and for withholding, which is declared for periods shorter than a year, that figure is measured per calendar year. Rafael is a long way off, but a business with staff that funds its cash flow with several years of withholding may not be.
Anyone who does not file the 111 commits an offence: when Hacienda detects it, there will be an assessment, interest and a penalty, which for withholding deducted and not paid over can be classed as very serious. Anyone who files without paying only has a debt in the enforcement period with its surcharge. If one quarter you cannot pay, always file.
If there were a company behind it
Rafael is self-employed, but many restaurants operate as a limited company (sociedad limitada). In that case the Ley General Tributaria allows the debt to be passed on to the directors in certain situations, and repeated failure to pay over withholding is one of the patterns the Administration looks at when the company runs out of assets. It is not automatic and does not happen over one quarter, but it is worth knowing that the company's shield has limits. The deadlines and options at each stage of a case are in from the proposal to the assessment.