Expense Details & Proportions
📊 Extraordinary Expenses Division Breakdown
The division of extraordinary childhood expenses (reparto de gastos extraordinarios) after separation or divorce in Spain is governed by strict family law criteria under Article 142 of the Spanish Civil Code. Unlike ordinary expenses (such as food, daily clothing, and standard school costs), which are covered by the monthly child support pension, extraordinary expenses are defined as unpredictable, non-periodic, and necessary for the child (e.g. dental braces, prescription eyeglasses, or special tutoring recommended by a school counselor). For the 2026 fiscal year, Spanish courts establish a default split of 50.0% for each parent, unless the divorce decree specifies an asymmetric split (such as 60/40 or 70/30) matching each parent’s economic capacity. Furthermore, parents must provide a minimum of 10 days’ notice for non-urgent expenses before making the purchase. To check standard maintenance baselines, please consult our child support calculator.
🔍 Expense Classification & Consent Rules 2026
Spanish jurisprudence divides child-related costs into three main categories to prevent legal disputes:
- Necessary Extraordinary Expenses (Consent or Court-Ordered): Medical costs not covered by public health insurance (braces, eyeglasses, speech therapy, child psychologist). These do not require mutual agreement regarding their necessity, but the choice of specialist must be shared.
- Non-Necessary Extraordinary Expenses (Voluntary): Extracurricular activities, summer camps, private schools, or study abroad programs. These require written, signed consent from both parents to become shared financial obligations.
- Standard School Costs (Excluded): Textbooks, uniforms, school supply lists, and enrollment fees. The Spanish Supreme Court has ruled that these are ordinary expenses that must be paid out of the monthly child support pension.
📝 Worked examples
Example 1: Dental braces costing €2,400 with a 50/50 split
Profile: Divorced parents with a decree specifying a 50/50 split for all extraordinary expenses. The child needs orthodontic treatment.
- Total expense: €2,400.00
- Parent A share: 50%
- Parent B share: 50%
- Formula: €2,400.00 × 0.50 = €1,200.00
Example 2: Eyeglasses costing €300 with an asymmetric 70/30 split
Profile: Due to a significant difference in income, the divorce decree specifies that Parent A pays 70% and Parent B pays 30% of all extraordinary costs.
- Total expense: €300.00
- Parent A share: 70%
- Parent B share: 30%
- Formula A: €300.00 × 0.70 = €210.00
- Formula B: €300.00 × 0.30 = €90.00
Example 3: Private math tutoring costing €150/month without notice
Profile: Parent A enrolls the child in private tutoring classes after a poor report card and later demands a 50% payment from Parent B.
- Amount requested: €150.00/month
- Prior consent: Not requested from Parent B (no medical or judicial emergency exists, and there is no official school tutor recommendation).
- Classification: Non-necessary (voluntary) extraordinary expense.
⚠️ Common mistakes
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Claiming September school textbooks as extraordinary expenses: This is the most common school-related dispute in Spain. The Supreme Court has ruled that textbooks, school supplies, and uniforms are ordinary expenses. They must be covered by the monthly child support pension, not billed separately.
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Making a purchase and demanding payment without prior notice: Except for urgent medical emergencies, the custodial parent must notify the other in writing, providing the budget and specialist details. Failing to do so invalidates the claim.
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Failing to respond to an extraordinary expense proposal: If the other parent sends you a written notice for a necessary extraordinary expense (e.g. a €1,500 braces estimate) and you do not respond in writing within 10 business days, the law assumes tacit consent, making you liable for your share.
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Paying in cash without proof of transfer: Delivering cash for extracurricular activities or dental visits without a signed receipt or bank transfer record leaves you vulnerable. The other parent can legally sue for non-payment of court-ordered expenses.
🗂️ Special cases in family expense division
Enforcement Proceedings (Art. 776 LEC)
If a parent refuses to pay their share of a necessary, agreed extraordinary expense, you do not need to start a new lawsuit. You can file a motion for enforcement (ejecución de sentencia), allowing the judge to quickly freeze the non-paying parent’s bank accounts.
University & Higher Education Costs
University tuition fees and student accommodation costs for adult children are generally classified as ordinary education expenses by courts (provided the student’s progress is normal). These are covered by updating the child support amount rather than billed as one-off extraordinary costs.
❓ Frequently Asked Questions (FAQ)
Ordinary expenses are predictable and recurring (food, rent, school materials) and are covered by the monthly child support. Extraordinary expenses are **exceptional, unpredictable, and necessary** (orthodontics, eyeglasses, custom insoles).
You should send a written notice through a reliable channel (Burofax, email with acknowledgment of receipt, or WhatsApp with a clear reply), including the budget and the provider's details.
The other parent has **10 business days** to object in writing after receiving the notice. Failing to respond is legally treated as tacit consent, obligating them to pay their share.
No. Extracurricular activities are voluntary. They require **explicit written consent from both parents**. If one parent signs up the child unilaterally, they must cover 100% of the cost.
Yes. Providing a budget is necessary to let the other parent compare prices or seek a second medical opinion if they wish to verify the treatment's necessity.
Only the **net out-of-pocket cost paid by the family** (after public health refunds or private insurance coverage) is shared between the parents.
If the field trip is mandatory and graded as part of the official curriculum, it is a necessary extraordinary expense. Voluntary end-of-year trips require mutual agreement.
You must file an enforcement petition with the same Family Court that issued the divorce decree, providing payment receipts and proof of the written notice sent to the other parent.