What is a de facto separation
When a married couple stops living together without initiating any legal proceedings, this is known as a de facto separation. There is no lawsuit, no court ruling, no judge involved. One or both spouses simply decide to stop living together, and in practice the marital relationship is suspended -- even though the marriage remains fully valid in the eyes of the law.
De facto separation is not specifically regulated in the Spanish Civil Code, but Spanish law recognises it and assigns it legal effects in several areas. Article 82 of the Civil Code refers to it as grounds for judicial separation, and various tax regulations and social security rules address situations arising from it.
In practice, it is far more common than people realise. Many couples stop living together for months or even years before formalising their situation -- whether for financial reasons, uncertainty, or simply because they are unaware of the consequences of remaining in this legal limbo.
A de facto separation does not dissolve the marriage or change its legal effects. You are separated in practice, but married in law -- with all that that entails.
What is a legal separation
Legal separation, governed by Article 81 and subsequent articles of the Civil Code, is a judicial procedure through which spouses are released from the obligation to live together, without dissolving the marriage bond itself. Unlike a de facto separation, it requires court involvement: a petition, a ruling, and registration in the Civil Registry.
The fundamental difference from divorce is that, following a legal separation, the marriage subsists. The spouses cannot remarry, even though they are no longer required to cohabit or remain faithful. In practice, this option has lost almost all its relevance since the reform introduced by Ley 15/2005, which removed the requirement to go through a prior separation before filing for divorce.
Why it is almost never used today
Before 2005, divorcing in Spain required having been previously separated for at least one year. The reform eliminated this requirement, allowing couples to file for divorce directly after just three months from the date of marriage. As a result, legal separations now account for less than 4% of matrimonial dissolution proceedings, according to data from the Consejo General del Poder Judicial. Today, the vast majority of couples opt directly for express divorce.
Key differences between de facto separation and divorce
Understanding the differences between remaining de facto separated and formalising a divorce is essential for making informed decisions. The legal, financial, and personal consequences are very different in each case.
Marital status and remarriage
With a de facto separation, your marital status remains "married." You cannot enter into a new marriage while the previous one is still in force; doing so would constitute the criminal offence of bigamy (art. 217 CP). After a divorce, the marriage is dissolved and you regain the legal capacity to marry again.
Financial and property effects
With a de facto separation, if the matrimonial property regime is the joint property regime (sociedad de gananciales), it remains in effect. Assets acquired by either spouse during the separation may be considered joint property, and debts incurred by one may affect the other. With divorce, the joint property regime is wound up and each spouse administers their own assets independently.
Inheritance rights
As long as there is no divorce, both spouses retain their reciprocal inheritance rights. If one dies during a de facto separation, the other is still a forced heir, entitled to the statutory share (legítima) and the widowed usufruct. After divorce, these rights are extinguished entirely.
Survivor's pension
With a de facto separation -- without divorce -- the surviving spouse may be entitled to a survivor's pension, although this depends on the specific circumstances. After divorce, access to this pension requires meeting additional conditions, such as being entitled to a compensatory pension.
Tax treatment and income tax
Spouses in a de facto separation cannot file their income tax return (IRPF) individually as separate family units without a court ruling. This can have a significant tax impact. For more detail, see our guide on income tax after divorce.
Comparative summary
| Aspect | De facto separation | Divorce | |---|---|---| | Marital status | Married | Divorced | | Remarriage | Not possible | Possible | | Joint property regime | Remains in effect | Wound up | | Inheritance rights | Preserved | Extinguished | | Survivor's pension | Generally yes | Subject to conditions | | Joint tax filing | Mandatory (family unit) | Individual |
Financial consequences of de facto separation
Financial consequences are, by far, the most common source of problems for couples who have been de facto separated for some time.
The joint property regime does not stop
If your matrimonial property regime is the sociedad de gananciales (the default regime in most autonomous communities in Spain), all assets acquired during the marriage are jointly owned -- including those acquired during the period of de facto separation, because legally the marriage is still in force.
In practice, if you have been de facto separated for three years and during that time you bought a car or invested in a business, your spouse could claim half. Equally, if your spouse incurs debts, those debts can fall against the joint assets.
Debts and liability
Article 1365 of the Civil Code establishes that joint assets are liable for debts incurred by one spouse in the exercise of domestic authority or in managing joint assets. During a de facto separation, defining the scope of such debts becomes considerably more complex, because it is difficult to determine which expenses are linked to family support and which are purely personal.
Property and assets acquired during the separation
One of the most contentious scenarios arises when one spouse purchases a home during a de facto separation. Even if they buy it entirely with their own earnings, the presumption of joint ownership may apply. Case law has gradually refined these effects and some courts apply the doctrine of abuse of rights, but this is not a guaranteed protection. The only way to truly safeguard your assets is to formalise the situation through divorce.
Effects on children
Regardless of whether the parents are de facto separated or divorced, children have exactly the same rights in either case. However, how custody and maintenance are organised differs significantly depending on whether or not a court ruling exists.
Without a court ruling, there is no legal framework
The main risk of de facto separation when there are minor children is the absence of a legal framework governing custody, time-sharing arrangements, child support, and the use of the family home. Without a court judgment or a court-approved parenting agreement, any arrangement between the parents is purely informal and therefore legally unenforceable.
This means that if one parent unilaterally decides to change the schedule, take the children to another city, or stop contributing financially, the other parent has no enforceable legal instrument to go to court and demand compliance.
The importance of formalising custody arrangements
Whether through an uncontested divorce or a parental measures procedure, obtaining a court ruling that sets out the custody regime is essential. This document will determine whether custody will be shared or sole, establish a detailed schedule, set the child support amount, and regulate the use of the family home.
If you are de facto separated and have children, regularising your situation is not just a legal matter -- it is a necessity for the children's emotional stability. Children need clear routines and to know what to expect. An informal arrangement that shifts with each parent's mood generates insecurity and anxiety.
If you are not married but have children together, see our guide on children of unmarried couples, where we explain the specific process for establishing custody outside of marriage.
When each option makes sense
Not every situation calls for the same solution.
When de facto separation makes sense
- A period of reflection: If reconciliation is a genuine possibility, a de facto separation gives you time apart without initiating a legal process that would later need to be reversed.
- Very recent separation: If you need a few weeks to process the situation before making final decisions.
- Financial constraints: If you cannot cover the costs of a legal procedure, it may serve as a temporary solution.
In all these cases, de facto separation should be a transitional state, never a permanent one. The financial risks and lack of legal certainty for children make it a poor long-term decision.
When divorce is the better choice
- A definitive break: Divorce provides the legal certainty you need to rebuild your lives.
- Minor children are involved: Formalising custody arrangements, child support, and parenting schedules is a priority.
- Moving on romantically: While you remain married, you cannot remarry, and living with a new partner can have legal implications.
- Significant shared assets: Every day in de facto separation without winding up the joint property regime is a financial risk.
- Tax clarity: Divorce allows each spouse to file their income tax return individually.
If you have been de facto separated for more than a few months, it is probably time to take the next step. Divorce is not the end of anything -- it is the beginning of a new chapter, with everything clearly defined.
How to regularise your situation
If you have been de facto separated for some time and want to formalise things, here are the steps to follow.
Step 1: Consult a family law solicitor
Speak with a lawyer specialising in family law who can assess your specific situation: the matrimonial property regime, minor children, shared assets and debts, and the length of the separation. With this information they can recommend the best course of action.
Step 2: Try to reach an agreement with your former spouse
If an agreement is possible, an uncontested divorce is the fastest and most cost-effective route. You will need to draw up a divorce settlement agreement covering all arrangements regarding custody, maintenance, the family home, and the division of assets. If negotiations become difficult, family mediation can help you resolve any sticking points.
Step 3: Wind up the joint property regime
It is advisable to wind up the sociedad de gananciales within the same divorce proceedings, to avoid having to initiate a separate judicial process afterwards.
Step 4: Complete the divorce
Once the paperwork is ready, your lawyer will file the divorce petition. If it is uncontested, the process typically takes between one and three months. If it is contested, the timeline is considerably longer.
If you have been de facto separated for many years
The longer the separation has lasted, the more complex the division of assets may be -- but there are also stronger arguments for establishing that assets acquired during the separation are private property. Do not let the passage of time paralyse you: precisely because you have been in this situation for so long, regularising it is all the more urgent.
Frequently asked questions
Can I initiate a de facto separation unilaterally?
Yes. It does not require the other spouse's consent. Simply stopping cohabitation is enough. No legal formality is required, although it is advisable to record the date of separation -- for example, through a certified letter (burofax) or a notarial deed.
Is there a maximum duration for a de facto separation?
No. You can remain de facto separated for decades without the marriage dissolving automatically. However, maintaining this situation over the long term carries significant financial and inheritance risks.
Can you go directly from a de facto separation to divorce?
Yes. Since 2005, it is no longer necessary to go through a prior legal separation. The only requirement is that at least three months have passed since the marriage was celebrated.
What happens to the family home during a de facto separation?
Without a court ruling, there is no formal allocation of the right to use the home. If you are both co-owners, you both have the right to use it. When minor children are involved, courts typically award use of the home to the custodial parent -- but only once legal proceedings have been initiated.
Organising co-parenting from day one
If you have children together -- whether you are de facto separated or divorced -- the priority is to establish a functional co-parenting arrangement. Children need stability, clear routines, and the certainty that both parents remain present and coordinated.
Managing day-to-day life means coordinating calendars, sharing expenses, and communicating about the children. Handling everything through WhatsApp or from memory is a recipe for conflict. Co-parenting apps like Niddo bring all of this together in one place: a custody calendar, a shared expenses log, and organised communication.
De facto separation or divorce may mark the end of a romantic relationship, but it is the beginning of a new way of being a family. Getting organised from day one makes all the difference.
Download Niddo for free and start managing your co-parenting in an organised way, whatever your current legal situation.
