When the children have grown, one parent has moved, circumstances have changed — the original custody order can be modified. Our bar-registered family lawyers handle custody modification applications across Spain for expat families.
Custody orders aren't permanent. Article 775 of the Civil Procedure Law (LEC) allows modification where there is a cambio sustancial de las circunstancias — a substantial change of circumstances — since the original order.
The most common triggers: children growing up and wanting different schedules, one parent relocating, changes in work patterns, remarriage, new siblings, educational changes, safeguarding concerns that emerged later. Not every change justifies modification — courts look for genuine substantial change, not buyer's remorse.
Modification is quick and cheap when agreed, slower and litigated when not. We handle both.
Where both parents want the change — fast convenio modification, approved by court or (in some cases) notary. Often weeks, not months.
Learn more ContestedWhere one parent wants change and the other doesn't — full judicial application under Article 775 LEC. Evidence, hearings, children's voice.
Learn more RelocationOne parent moving — triggers custody review. Often the most contentious modifications. Timing matters.
Learn more GrowingSchedules that worked at 5 don't work at 12. Modification to reflect children's changing needs and voice.
Learn more MoneyIncome changes, children's needs change, extraordinary expenses mount — pensión de alimentos updated separately or together.
Learn more SharedChanging the custody model itself — from shared to sole, or sole to shared. Highest threshold. Strong evidence required.
Learn more SpouseWhere spousal compensation was ordered — modification or extinction where circumstances change (new cohabitation, remarriage, improved income).
Learn more UrgentWhere delay would harm the child — interim protective measures while full modification is heard.
Learn more EnforceSometimes the problem isn't a bad order — it's that the order isn't being followed. Enforcement may be faster than modification.
Learn moreThe standard under Article 775 LEC is alteración sustancial de las circunstancias — a substantial alteration of the circumstances that existed when the order was made. Not just any change. Not just preference. A genuine, material change that affects what's in the child's best interest.
Examples that typically meet the threshold: a parent moving 300km away; a child reaching age 12 and expressing a settled preference; a parent's new work pattern making the existing schedule unworkable; a parent's mental health or substance abuse creating safeguarding concerns; a significant change in one parent's income affecting maintenance; remarriage creating blended-family logistics that don't fit the old plan.
Examples that typically don't meet the threshold: dislike of the other parent's new partner; disagreements over parenting style; minor schedule inconvenience; the child simply 'preferring' to live with one parent without clear maturity or reasoning; one parent's desire to undo what they previously agreed.
If both parents agree that the current arrangement needs updating, modification is straightforward. Draft a convenio regulador modificativo specifying exactly what changes, file at the same court that issued the original decree, and within 4-8 weeks you have a new binding order.
No need to prove substantial change — the court respects parental autonomy when the child's interest is preserved. The court and fiscal still review the modification (where minor children are involved) to ensure the new arrangement protects the children.
Cost: typically €800-1,800 depending on complexity. Fast. Low-conflict. The overwhelmingly preferred route when possible.
Where divorce was by notary (no minor children), some modifications can also be done by notary — but any modification touching on anything that would have required court is now court-only.
Where one parent wants change and the other doesn't, contested modification under Article 775 LEC is required. The process resembles a contested divorce, focused on the specific issues in dispute.
Filing: the applicant parent files a demanda de modificación de medidas setting out the substantial change and the proposed new arrangement. The respondent answers, counter-proposes if applicable, and the case proceeds.
Evidence: psychological reports on the children, school reports, medical evidence if relevant, work schedules, financial evidence, witness statements. The children's voice (exploración) for those over 12, often considered for younger where they have sufficient maturity.
Timeline: 6-12 months typically, longer if contested psychological reports are needed. Interim measures can be obtained where urgency requires.
Cost: €3,000-7,000+ depending on complexity — psychological reports add significantly. Lower-conflict cases at the bottom end, complex relocation disputes at the top.
Relocation modifications are among the most litigated matters in family law. The custodial parent wants to move — for work, family, new relationship, lifestyle — and the other parent opposes.
The legal framework is Article 158 of the Civil Code (the court's general duty to protect minors) combined with Article 775 LEC. The court balances: the reasons for the move, its effect on the children's education and stability, the other parent's ability to maintain contact, the children's views, the child's overall interest.
Key point: the custodial parent cannot unilaterally move a child abroad (or often, to a different Spanish region) without consent or court authorisation. Doing so risks abduction proceedings under the Hague 1980 Convention — a serious, rapid, international process.
We advise parents contemplating relocation to address it before moving. File a modification application requesting court authorisation; if granted, move with the order in hand. If refused, the move can't happen without risking abduction findings. Trying to move first and litigate later almost always fails.
For the opposing parent: if your ex is planning a move, act immediately. Interim injunctions can prevent the move while the substantive case is heard.
The most common non-contested basis for modification: the children have grown up. A schedule that was right at age 5 isn't right at age 12 or 15.
Young children (under 7) often do best with shorter exchanges, fewer transitions, one primary base. Primary-age children (7-11) adapt well to longer blocks and more symmetric schedules. Adolescents (12+) have their own social lives, sports, friendships — rigid schedules can interfere.
Good modifications for growing children: move from 2-2-3 to week-on-week-off around age 7; introduce midweek overnights with the non-custodial parent as children reach 8-10; give teenagers more flexibility and voice in their own schedules from 13+.
Where parents can't agree, the court often modifies schedules in this direction with relatively low conflict. The child's voice carries particular weight — a 13-year-old's settled preference for more time with one parent is usually respected.
Pensión de alimentos (child maintenance) is one of the most frequently modified elements of post-divorce arrangements — incomes change, children's needs change, inflation compounds.
Modification grounds: significant income change (either direction) — unemployment, promotion, business failure, new earnings; significant change in children's needs — private school, medical needs, extracurricular costs; change in custody arrangement (e.g., sole to shared reduces maintenance); child becoming self-sufficient (ending maintenance) or reaching age 25 with studies not progressing.
Maintenance modifications can be pursued alone — without reopening custody. This is often simpler and cheaper. Filed under Article 775 LEC, specifying the change and the requested new amount.
Indexation clauses in the original convenio (IPC annual indexation) don't count as modification — they're automatic. Modification is for genuine material changes beyond inflation.
Pensión compensatoria — spousal compensation awarded at divorce — is often time-limited but can also be indefinite. It can be modified or extinguished under specific grounds.
Extinction grounds under Article 101 of the Civil Code: death of either spouse; new marriage of the recipient; stable cohabitation of the recipient with a new partner (convivencia marital); or the cessation of the circumstances that led to the award.
Proving stable cohabitation is evidence-heavy: shared address, shared bills, photos, social-media evidence, witness statements, private-investigator reports in contested cases. The threshold is 'analogous to marriage' — not just a boyfriend staying over.
Modification (rather than extinction) is possible where the recipient's economic situation has improved substantially — new job, inheritance, business success — without reaching the extinction thresholds.
Modification timing matters. Filing too early — before the substantial change is established or documented — fails. Filing too late — after accepting an inadequate arrangement for years — makes the modification harder (the court wonders why, if it was so bad, you waited).
Sweet spots: once a substantial change is clear and documented (3-6 months of evidence is often enough); before the situation becomes entrenched (don't wait 2 years after a relocation becomes intolerable); when the child's interest clearly points one way (a clear teenage voice, clear safeguarding concerns, clear parental change).
Bad timing: during a heated inter-parental conflict without fresh substantive grounds (looks like re-litigation); while actively obstructing the current order (you'll be told to comply first); immediately after the original order (courts dislike immediate re-openings absent dramatic change).
A pre-application consultation is the best investment — we help you assess whether you have a case, whether the timing is right, and what evidence will make or break the application.
Good modifications don't re-fight the divorce — they reflect genuine, material, ongoing change. Frame it right or don't file.
How we handle modifications.
Honest assessment of whether a substantial change exists, what evidence supports it, and what the likely outcome is. Sometimes the answer is 'not yet' or 'enforcement, not modification'.
Agreed or contested? Full modification or narrow (just maintenance, just schedule)? Interim measures needed? Strategy defined before filing.
Modification demanda drafted, supporting evidence gathered, filed. Or — where agreed — convenio modificativo prepared and filed jointly.
Contested: hearings, evidence, judgment, new order. Agreed: court approval, new order. Implementation of the updated arrangement.
Consultation with a bar-registered family lawyer. Clear viability assessment, strategy, and execution.
Book a Confidential ConsultationWhy PLS for modifications.
Spanish-qualified family lawyers handling both agreed and contested modifications across Spain.
We tell you if you have a case before you pay to litigate. No speculative fishing expeditions.
Psychological reports, school evidence, financial documentation — we know what wins.
When to file, what to build first, whether to open narrow or wide — strategy-led, not reactive.
Relocation cases, foreign evidence, cross-border enforcement — we operate internationally.
Every document explained in English. You always know what's happening.
Common errors in modification.
Courts dismiss applications that re-litigate the original. Substantial change must be real and documented.
Relocating without consent or authorisation risks abduction proceedings. Always authorise first.
Breaching while seeking modification torpedoes the application. Comply with the current order until the new one issues.
Courts see through punitive applications. Genuine child-interest grounds only.
Urgent situations need interim applications — full modification takes months. Don't wait.
Over-12 voice matters. Ignore it at your peril. Address what the children actually want.
Loose allegations without documentation fail. Build the evidence file before filing.
Sometimes you need schedule + maintenance + custody model all at once; sometimes just one. Strategy matters.
Years of tolerating an inadequate order undermines modification. Don't let the situation embed.
Parents we typically help with modification.
Planning a move — get authorisation before going.
Ex planning to move with the children — interim injunction and substantive opposition.
Children now old enough to want something different — updated schedules.
Significant income shift — maintenance modification up or down.
New concerns that emerged post-divorce — urgent modification or restriction.
Children older, co-parenting improved — time for shared custody.
Shared custody no longer working — evidenced transition to sole.
Recipient has remarried or cohabits — extinction application.
Substantial alteration of circumstances since the original order — Article 775 LEC. Real, material change affecting the child's interest, not preference or buyer's remorse.
Agreed: 4-8 weeks. Contested: 6-12 months typically, longer with psychological evidence. Interim measures available urgently.
Agreed: €800-1,800. Contested: €3,000-7,000+ depending on complexity and whether expert evidence is needed.
No. Moving a child abroad (and often to a different Spanish region) requires the other parent's consent or court authorisation. Moving without risks abduction proceedings.
Over-12 voices carry serious weight; younger children's views are heard but less determinative. Combined with corroborating evidence of substantial change, it often succeeds. Alone, it may not.
Yes. Maintenance can be modified independently of custody. Usually quicker and cheaper than reopening the whole arrangement.
A new partner alone isn't modification grounds. But a new partner creating a genuinely unsafe environment, or creating cohabitation sufficient to extinguish pensión compensatoria, are relevant.
Yes — interim modification measures under Article 158 Civil Code where delay would harm the child. Typically decided within weeks.
Psychological reports on the children, school records, medical evidence, work schedules, witness statements, financial documentation. Build the file before filing.
Yes — Article 101 Civil Code. Extinction on death, new marriage, stable cohabitation analogous to marriage, or cessation of the original economic imbalance.
No. Breach during modification torpedoes the application. Keep paying the current amount; if modification reduces it, you can recover overpayments.
Where minor children are involved, court approval is required to make the modification enforceable. Notary is available in narrow circumstances only.
Consultation with a bar-registered family lawyer. Honest assessment. Strategic execution. English throughout.
General information about modification in Spain. Not a substitute for specific legal advice. Platinum Legal Spain — regulated by the Ilustre Colegio de Abogados de Málaga.