What is sole custody
Sole custody, also referred to as exclusive custody, is the arrangement in which minor children live primarily with one parent after a separation or divorce. The other parent retains a court-regulated visitation and communication schedule, established either by judicial ruling or by the agreed parenting plan.
It is important not to confuse custody with parental authority (*patria potestad*). Even when custody is assigned to one parent alone, parental authority remains shared unless exceptional circumstances apply. Both parents retain the ability to make significant decisions about their children's education, health, and wellbeing, regardless of which household the children live in.
Sole custody vs. shared custody
In shared custody, children alternate residence between both homes in roughly equal periods. Both parents share day-to-day living and caregiving responsibilities on a balanced basis.
In sole custody arrangements, children have a primary home with the custodial parent. The non-custodial parent has a visitation schedule that typically includes alternating weekends, one or two weekday afternoons, and half of school holiday periods. According to data from Spain's National Statistics Institute (INE), shared custody is now granted in more than 43% of divorce rulings involving minor children. Even so, sole custody remains the appropriate solution when family circumstances do not allow for an equitable arrangement.
Sole custody does not make the non-custodial parent a second-class mother or father. Parental authority remains shared, and both parents retain fundamental rights in relation to their children.
When sole custody is granted
Spanish courts always apply a guiding principle: the best interests of the child. When a judge determines that shared custody is not viable or does not benefit the children, exclusive custody is awarded to one of the parents. The most common situations are the following.
Risk to the child's safety
The existence of domestic violence, child abuse, or sexual abuse is the clearest reason for granting sole custody. Article 92.7 of the Spanish Civil Code expressly prohibits granting shared custody when one parent is involved in criminal proceedings for domestic or gender-based violence. Sole custody is also required where there are well-founded indications of serious neglect, untreated addictions, or conduct that endangers the children's physical or emotional integrity.
One parent's unavailability
When a parent cannot take on regular day-to-day care due to imprisonment, residence in another country, work requiring extended travel, or serious illness, sole custody is the natural solution. This is not a punitive measure but an adaptation to the family's actual circumstances.
Very young children
Historically, courts applied the doctrine of tender years, which tended to award custody of infants to the mother. While this is no longer applied automatically, case law recognises that in the first months of life there may be objective reasons to assign custody to the parent who can best ensure feeding and the primary bond. From around two or three years of age, the trend favours more balanced arrangements.
One parent's voluntary request
A parent may voluntarily request that sole custody be awarded to the other, due to personal, professional, or health circumstances that prevent them from assuming regular cohabitation with the children. This voluntary step does not entail losing parental authority or the right to a visitation schedule.
Extreme conflict between parents
High parental conflict is not in itself a ground for refusing shared custody. However, a level of conflict that prevents the minimum cooperation required can make shared custody unworkable. In such cases, sole custody better protects the children's emotional stability.
Rights and responsibilities of the custodial parent
The parent who obtains sole custody takes on primary responsibility for daily care, but that responsibility comes with both rights and obligations.
Day-to-day decisions
The custodial parent has the autonomy to make everyday decisions: meal schedules, sleep routines, regular leisure activities, and ordinary domestic matters. They do not need to consult the other parent for every aspect of the child's daily life.
Schooling and healthcare
Routine decisions -- such as taking the child to the paediatrician or helping with homework -- rest with the custodial parent. However, significant decisions -- such as changing schools, non-urgent surgery, or long-term psychological treatment -- require the consent of both parents, since parental authority is shared.
Right to receive child support
The custodial parent is entitled to receive child support from the other parent to cover the children's ordinary expenses: food, housing, clothing, education, and basic healthcare. This entitlement cannot be waived on the children's behalf.
Obligation to facilitate contact with the other parent
One of the custodial parent's most important obligations is to support the children's relationship with the non-custodial parent. This means respecting the visitation schedule, not obstructing communications, and refraining from any conduct that damages the other parent's image in the children's eyes.
Failure to comply can have serious consequences. Courts have gone as far as transferring custody to the non-custodial parent when systematic obstruction has been proven -- conduct that may constitute parental alienation.
Use of the family home
In many cases, the custodial parent retains the right to use the family home for the duration of the custody arrangement, in order to preserve the child's stability in their familiar environment.
Rights of the non-custodial parent
Spanish law protects a broad set of non-custodial parent rights that go well beyond mere visitation.
Visitation, communication, and time with the children
Article 94 of the Spanish Civil Code guarantees the non-custodial parent the right to visit their children, communicate with them, and have them in their company. The most common arrangement includes alternating weekends, one or two weekday afternoons, and half of school holidays. This right can only be limited or suspended by a court ruling in serious circumstances.
Right to information
The non-custodial parent has the right to receive complete information about their children's educational and health situation directly from schools and healthcare providers, without having to depend on the custodial parent to pass it on.
Participation in significant decisions
As a holder of shared parental authority, the non-custodial parent must be consulted on important decisions: choice or change of school, significant medical treatments, international travel, and meaningful extracurricular activities. If no agreement is reached, either parent may apply to the court.
Contribution through child support
The non-custodial parent is obliged to contribute to the children's upkeep through child support payments. Extraordinary expenses are typically split 50/50 between both parents, unless the court ruling specifies a different proportion.
Child support in sole custody arrangements
In a sole custody arrangement, the non-custodial parent pays a monthly amount to the custodial parent to cover the children's ordinary expenses.
How it is calculated
There is no fixed mathematical formula. The judge weighs the income of both parents, the children's needs, the number of children, and each parent's financial commitments. The Consejo General del Poder Judicial (CGPJ) reference tables provide benchmark ranges: for a non-custodial parent with net earnings of 1,500 euros and one child, support typically falls between 180 and 250 euros per month. See our complete child support guide for further detail.
What child support covers
It covers ordinary expenses: food, housing (proportional share), clothing, education, school supplies, and basic healthcare. Extraordinary expenses -- such as orthodontics or summer camps -- are divided separately between both parents.
Duration of the obligation
Child support does not end automatically when the child turns 18. It continues until the child achieves financial independence, which may extend through the completion of university or vocational training.
Annual adjustment and non-payment
Child support is updated annually in line with the CPI (consumer price index). In the event of non-payment, the custodial parent may apply to court for the seizure of the debtor's assets or income. Repeated non-payment may constitute the criminal offence of family abandonment (*abandono de familia*), punishable by a prison sentence of three months to one year.
How to request a change from sole to shared custody
Circumstances change. Spanish law allows parties to request a modification of the custody arrangement when a substantial change occurs, and moving from sole to shared custody is one of the most frequent applications made to family courts.
Requirements for requesting the change
The Supreme Court requires that the change in circumstances be:
- Substantial: A significant alteration of the conditions that existed when the original ruling was made.
- Supervening: It must have arisen after the ruling, not have pre-existed it.
- Lasting: It cannot be a one-off or temporary situation.
- Involuntary: It cannot have been deliberately brought about by the party requesting the modification.
Circumstances that typically justify a change
The most common grounds include the children growing older, the non-custodial parent's improved employment or housing situation, relocation to a place closer to the other household, or the child's own wishes when they are old enough to be heard.
The process step by step
- Consult a family law solicitor to assess the viability of your case.
- Gather evidence demonstrating the substantial change: an employment contract, a home near the child's primary residence, school reports, records of communications with the children.
- Attempt a prior agreement: If both parents agree, the change is processed as a mutually agreed modification -- a faster procedure.
- File the application to modify custody measures with the family court that issued the original ruling.
- Psychosocial team assessment: The court will request a report evaluating the current situation and the suitability of the proposed change.
- Court ruling: The judge will weigh the evidence, the psychosocial report, and, where appropriate, the views of children aged 12 and over.
What the judge evaluates
The judge analyses the parents' ability to cooperate, the proximity of their homes, their availability in terms of working hours, the children's views, and the children's adaptation to their current environment. For a detailed look at the process, see our guide on modifying custody arrangements.
Frequently asked questions
Is sole custody always awarded to the mother?
No. Although this was historically the case, the trend has changed significantly. Courts apply the best-interests-of-the-child standard without discrimination on grounds of sex. The Supreme Court has repeatedly held that a parent's sex cannot be a determining factor. What matters is which parent offers the best conditions for the child's overall development.
Can I move to another city if I have sole custody?
The custodial parent has the right to freedom of movement, but a relocation that affects the visitation schedule or the child's established ties requires the non-custodial parent's consent or judicial authorisation. Courts assess whether the move is justified and whether the child's bond with the other parent will be maintained.
What happens if the non-custodial parent does not exercise visitation rights?
The custodial parent can report the non-compliance to the court, which may impose coercive fines. If the disengagement is manifest and prolonged, the judge may modify or suspend the visitation arrangement. Continued abandonment of parental obligations may be considered in any eventual proceedings to withdraw parental authority.
Can a parent have sole custody and shared parental authority at the same time?
Yes, and this is the standard situation. Custody refers to day-to-day living arrangements, while parental authority (*patria potestad*) encompasses the full set of rights and duties relating to minor children: education, healthcare, legal representation, and administration of assets. Only in exceptional circumstances will a judge strip a parent of parental authority.
Managing sole custody with the right tools
Sole custody requires constant coordination: visitation schedules, communications about the children, expense sharing, and documentation of every decision. When this management is handled through a jumble of messages or phone calls that end in arguments, conflict is fuelled -- and children pick up on it.
Niddo lets both parents share a clear custody calendar, log expenses with attached receipts, communicate through a documented channel, and keep all information organised and accessible to both. When the finances are transparent and communication is clear, the focus returns to where it belongs: your children's wellbeing.
