Extraordinary Expenses for Children in Spain: Rules & Payments

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After a divorce or a separation of a couple with children in common, managing the family finances often becomes one of the main sources of conflict. While the ordinary child support pension covers the daily and foreseeable needs of minors, the appearance of unforeseen, medical, or educational outlays generates constant doubts and disputes between parents. Understanding what is legally considered an extraordinary expense, how it must be notified, and how its payment is shared is essential to guarantee the well-being of the children and avoid costly court proceedings.

What Are Extraordinary Expenses? Concept and Difference from Ordinary Expenses

To precisely define which expenses must be paid outside of the monthly child support pension, the jurisprudence of the Supreme Court and the practice of Family Courts in Spain have established a clear distinction between ordinary and extraordinary expenses.

The ordinary child support pension (regulated in general terms in *Article 142 of the Código Civil (Civil Code)*) comprises everything that is indispensable for sustenance, housing, clothing, medical assistance, and also the education and instruction of the recipient. These are foreseeable, periodic, and habitual expenses (such as food, clothing, annual school enrollment fees, school supplies at the start of the academic year, or housing utility bills).

Conversely, an extraordinary expense is one that meets the following three cumulative requirements:

1. Unforeseeability: It is not known with certainty whether or when it will occur.
2. Non-periodicity: It is not repeated constantly or monthly over time.
3. Necessity or exceptional suitability: It is necessary for the development, health, or education of the minor, or, being secondary, it has the express agreement of both parents.

The Regulatory Framework in Spanish Family Law

The regulation of parent-child relationships after a breakup is based on the principle of favor filii (the best interests of the child). The reference legal framework consists of:

• *The Código Civil: Especially Articles 142 and following (support between relatives) and Article 93*, which empowers the judge to determine the contribution of each parent to satisfy the needs of the children.
• Law 15/2005, of July 8: Which modified the Código Civil regarding separation and divorce, promoting parental co-responsibility and facilitating the establishment of measures on the maintenance of family burdens.
• Organic Law 1/2004, of December 28, on Integrated Protection Measures against Gender Violence: Which introduces procedural specialities and protection for minors in contexts of gender violence, limiting or modulating parental authority and communication between parents for making these decisions if necessary.

Classification of Extraordinary Expenses: Necessary vs. Non-Necessary

Not all expenses that fall outside the ordinary pension receive the same legal treatment. Jurisprudence classifies them into two broad categories, which determines whether or not the consent of the other parent is mandatory to demand payment.

1. Necessary extraordinary expenses

These are of an urgent or imperative nature for the health, education, or well-being of the minor. They do not require the prior consent of the other parent to be carried out, although their existence must be communicated as soon as possible. Both parents are obliged to contribute to them in the established proportion.

• Medical field not covered by the Social Security or private insurance: Orthodontic treatments (braces), acquisition of prescription glasses or contact lenses, speech therapy, psychology or physiotherapy treatments prescribed by a doctor, emergency surgical interventions, or non-subsidised medicines.
• Necessary educational field: School support or reinforcement classes formally recommended by the tutor or the school due to low academic performance or learning difficulties of the minor.

2. Non-necessary (or secondary) extraordinary expenses

These are those that, while beneficial for the development of the minor, are dispensable or purely recreational, cultural, or leisure-related. They strictly require the prior and express written agreement of both parents (or, failing that, judicial authorisation) so that their shared payment can be demanded.

• Extracurricular activities: Music, painting, football, or tennis classes, etc.
• Trips and leisure: End-of-term school trips, summer camps, language courses abroad.
• Celebrations: Expenses derived from the First Communion, baptisms, or birthday parties of a certain scale.
• Private or postgraduate studies: Enrollment in private universities or specialised master's degrees when equivalent public options exist, unless that educational model had historically been agreed upon.

How Are They Paid? Proportion and Economic Distribution

Unless the convenio regulador (regulatory agreement) approved by the judge or the divorce decree itself establishes otherwise, the general rule is that necessary extraordinary expenses are paid at 50% by each parent.

However, the courts increasingly look at the principle of proportionality. If there is a very pronounced economic disparity between the parents, the judge can set an asymmetric split in the ruling (for example, 70% to be paid by the parent with the higher income and 30% by the other).

Practical Example 1: Sofía's Orthodontic Treatment

> Carlos and Elena are divorced. Their convenio regulador establishes that necessary extraordinary expenses will be paid at 50%. Their 12-year-old daughter, Sofía, needs braces prescribed by her dentist to correct a severe malocclusion. The total budget for the treatment is €3,200. > > Being a necessary medical extraordinary expense, Elena presents the budget to Carlos. Since it is a necessary expense, even if Carlos expresses disagreement, he is obliged to pay it. Each must pay exactly €1,600 in accordance with the payment terms stipulated by the dental clinic.

Practical Example 2: Lucas's Summer Camp

> Javier and Marta have a child in common, Lucas, aged 9. Their incomes are disparate, so the court ruling determined a split of extraordinary expenses of 60% for Javier and 40% for Marta. Marta wants to sign Lucas up for an English summer camp that costs €800. > > This expense is classified as a non-necessary (or optional) extraordinary expense. Marta sends an email to Javier requesting his consent. If Javier agrees in writing, he will pay €480 (60%) and Marta €320 (40%). If Javier responds denying consent or does not reply within the corresponding period, Marta can still sign Lucas up for the camp, but she will have to assume 100% of the cost (€800) out of her own pocket, without being able to claim anything from Javier.

Step-by-Step Practical Procedure to Claim an Extraordinary Expense

To prevent a claim for an extraordinary expense from being dismissed due to formal defects, it is crucial to follow a rigorous protocol. Below are the steps that the parent intending to incur the expense must take:

``` [Step 1: Obtain a Quote/Budget] │ ▼ [Step 2: Written Notification to the other parent] (Response window: 10 days) │ ┌───────┴───────┐ ▼ ▼ [Is there Agreement?] ──► [YES] ──► [Step 3: Carry out the expense & share payment] │ [NO] │ ▼ [Step 4: Judicial Route] ──► [Incident of Art. 776.4 of the LEC] ```

Step 1: Obtain a budget or proforma invoice

Before making any payment, a detailed written budget must be requested from the professional or entity that will provide the service (doctor, academy, etc.).

Step 2: Formal and verifiable notification to the other parent

The budget must be sent to the other parent by a method that provides proof of receipt (such as a burofax (certified registered mail) with acknowledgment of receipt and text certification, an email with read confirmation, or a notary demand). The communication must specify:

• The detailed concept of the expense.
• The total amount.
• The share they are responsible for paying according to the percentage in the ruling (for example, 50%).
• A reasonable response window, which jurisprudence usually sets at 10 business days from receipt.

Step 3: Response from the requested parent

• If they agree or do not reply within 10 days: It is understood that they give their tacit consent (especially for necessary expenses). The expense can be incurred and they will proceed to joint payment.
• If they express disagreement: If it is a non-necessary expense, the proposing parent cannot carry it out on a shared basis. If it is a necessary expense and the other refuses, the judicial route is opened.

Step 4: Judicial resolution in case of discrepancy (Article 776.4 of the LEC)

If there is no agreement on the suitability or necessity of the expense, the parent who wishes to incur it must initiate the extraordinary expense declaration procedure regulated in *Article 776.4 of the Ley de Enjuiciamiento Civil (LEC — Civil Procedure Act). The Letrado de la Administración de Justicia* (Court Clerk) will summon the parties to a quick hearing where the judge will determine whether the expense is strictly extraordinary and whether it is necessary or not, authorising or denying its execution and the distribution of its cost.

Mistakes You Should Avoid

• *Incurring the expense and demanding payment a posteriori without warning:* Except in cases of vital medical urgency (where the minor requires immediate attention), incurring an extraordinary expense without prior communication to the other parent usually entails losing the right to claim their corresponding share through the courts.
• Confusing school supplies with an extraordinary expense: The Supreme Court has unified doctrine determining that textbooks, start-of-term enrollment fees, backpacks, and school uniforms are predictable ordinary expenses. They must be budgeted within the monthly child support pension and cannot be claimed separately, unless the convenio regulador expressly states otherwise.
• Not keeping proof of payment and communications: Verbal agreements or informal WhatsApp messages are difficult to prove in court. Failing to keep burofaxes, emails, official invoices, and bank transfer receipts weakens any subsequent claim.
• Unilaterally offsetting non-payment against the ordinary pension: If the non-custodial parent does not pay their share of an extraordinary expense, the custodial parent cannot deduct that amount from other obligations or stop complying with their own duties. One must resort to the judicial enforcement channel separately.

Frequently Asked Questions (FAQ)

Is the First Communion an ordinary or extraordinary expense?

The First Communion (as well as baptisms or similar celebrations) is considered a non-necessary or secondary extraordinary expense. As it is not an event of mandatory execution nor strictly necessary for the development of the minor, it requires the express written agreement of both parents for the cost to be shared. If one of the two opposes the celebration or the budget presented, the parent who decides to organise it must assume 100% of the costs exclusively.

What happens if my child needs to see a psychologist and the other parent refuses?

Child psychological care, when recommended by a pediatrician, the school tutor, or a medical specialist, is classified as a necessary medical extraordinary expense. If the other parent refuses to authorise it or pay their percentage, the treatment can be started urgently and, in parallel, a lawsuit for the declaration of extraordinary expense can be filed under Article 776.4 of the LEC. The judge, faced with a professional report supporting the need for therapy, will authorise the expense and force the disagreeing parent to pay their percentage.

Can extraordinary expenses from previous years be claimed in court?

Yes, but with time limits. In Spanish common civil law, the statute of limitations for claiming payment of debts derived from child support pensions and extraordinary expenses already accrued and consented to (or declared necessary) is 5 years, in accordance with *Article 1966.1º of the Código Civil***. It is highly recommended not to delay these claims to prevent it from being interpreted as tacit consent to assume the expense by the custodial parent.

Are public or private university expenses extraordinary?

University studies are considered a continuation of the child's education. If a public university is chosen, enrollment and mandatory fees fall within ordinary support if the child continues to live in the family home. However, if the minor must move to another city to study, residence or rent expenses can be declared extraordinary if they were not contemplated in the initial pension. On the other hand, enrollment in a private university is considered a non-necessary extraordinary expense; it requires the agreement of both parents, unless the family's economic situation is exceptionally affluent and there was a prior agreement for private schooling.

In Summary

• Clear definition: Extraordinary expenses are unforeseen, non-periodic, and necessary or suitable for the minor, differing from the monthly ordinary pension.
• Key typology: They are divided into necessary (medical, mandatory school support), which do not require prior consent to compel payment, and non-necessary (extracurricular, leisure), which require written agreement.
• Payment proportion: They are generally paid at 50%, although the court ruling can establish asymmetric percentages (such as 60/40% or 70/30%) based on the economic capacity of each parent.
• Claim route: In the event of an unresolvable discrepancy regarding a necessary expense, one must resort to the fast-track judicial procedure of *Article 776.4 of the Ley de Enjuiciamiento Civil***.
• Documentary proof: It is essential to make all communications through verifiable means (such as burofax) and keep the original invoices to be able to claim successfully.

General legal information, not personalised legal advice. For your specific situation, ask your question for free at AbogadoAI — answers grounded in Spanish law (BOE), in English.

This is general information, not legal advice. Verify on the BOE or consult a lawyer for your specific case.