Home PageBlogDoes a prenuptial agreement protect against a spouse’s debts in Poland? It depends on several things

Does a prenuptial agreement protect against a spouse’s debts in Poland? It depends on several things

AuthorMaria Zarzycka- 19 March 2026

Does a prenuptial agreement protect against a spouse’s debts in Poland? It depends on several things

A prenuptial agreement – or more precisely, a matrimonial property agreement establishing separate property regimes – is becoming increasingly popular in Poland. Many people see it as an effective shield against a spouse’s debts. The legal reality is more nuanced. Whether a prenuptial agreement actually protects against enforcement depends on several factors that are worth understanding clearly before signing anything.


Table of contents

  1. What is a prenuptial agreement and what form must it take?
  2. The default matrimonial property regime versus separate property – the key difference
  3. Does a prenuptial agreement protect against a spouse’s debts?
  4. The critical condition – the creditor must have known about the agreement
  5. Debts arising before the agreement – does the protection disappear?
  6. Practical guidance
  7. FAQ

What is a prenuptial agreement and what form must it take?

A prenuptial agreement (intercyza in Polish) is the common name for a matrimonial property agreement governed by Article 47 of the Family and Guardianship Code (Kodeks rodzinny i opiekuńczy). Such an agreement may expand the statutory joint property regime, restrict it, establish separate property, or establish separate property with equalization of gains. In practice, the most common purpose is to establish complete separation of the spouses’ assets.

A prenuptial agreement can be entered into both before the wedding and during the marriage. The absolute formal requirement is that it must be made in the form of a notarial deed – an agreement made without a notary has no legal effect whatsoever. The date on which the agreement is entered into is critical to its effectiveness against creditors.


The default matrimonial property regime versus separate property – the key difference

Spouses who have not entered into a prenuptial agreement are subject to the statutory joint property regime (Article 31 of the Family and Guardianship Code). This means that everything each of them acquires during the marriage – salary, savings, real estate – generally becomes part of the joint estate. That joint estate can be subject to enforcement proceedings for debts incurred by one spouse with the other’s consent (Article 41 § 1 of the Family and Guardianship Code).

Once a separate property regime is established, each spouse manages only their own assets. Any debts of one spouse are enforced only against that spouse’s personal property – not against the other’s. This financial independence is the primary advantage of a prenuptial agreement.


Does a prenuptial agreement protect against a spouse’s debts?

As a general rule – yes. Where spouses have entered into a prenuptial agreement establishing separate property, and one of them incurs a debt after the agreement is made, the creditor can pursue enforcement only against the debtor spouse’s assets. The other spouse’s property is beyond the creditor’s reach.

But – and this is the crucial point – this protection is not absolute.


The critical condition – the creditor must have known about the agreement

Article 47¹ of the Family and Guardianship Code introduces a condition that not everyone is aware of. A prenuptial agreement is effective against a creditor of one of the spouses only if the creditor knew about it at the time the obligation arose. Where the creditor did not know about the agreement, they may pursue enforcement as if the agreement did not exist at all.

In practice, this means that a notarised agreement alone is not sufficient. Where a spouse is incurring a debt – for example a bank loan, a private loan, or a commercial obligation – the creditor must be informed of the existence of the separate property regime, ideally before the relevant contract is signed. In our experience, many people sign a prenuptial agreement without informing their counterparties or banks of its existence, and only discover during enforcement proceedings that the protection they were counting on did not materialise.


Debts arising before the agreement – does the protection disappear?

Yes. The law does not operate retrospectively – a prenuptial agreement does not eliminate debts that arose before it was entered into. Where one spouse incurred a debt during the period of joint property (for example, by taking out a loan or failing to pay tax obligations), and the prenuptial agreement was signed only after that debt arose, the creditor can still seek satisfaction from the assets that were jointly owned at the time the debt came into existence.

Consider this scenario: a marriage begins in 2015; in 2019 one spouse takes out a loan; the prenuptial agreement is not signed until 2021. The debt from 2019 arose during the period of joint property – the 2021 agreement provides no protection against its enforcement from the assets that were jointly owned at the time.


Practical guidance

A prenuptial agreement is an effective tool for financial protection – but only when used consciously and comprehensively. Several principles are worth keeping in mind.

Inform creditors of the prenuptial agreement before any obligation is incurred – ideally by showing them a certified copy of the notarial deed. Only then will they be bound by its terms. Do not assume that a prenuptial agreement will retrospectively protect against debts that already exist – it is effective only against obligations incurred after its date, and only against creditors who were informed of it. If you or your spouse run a business, the agreement is particularly important – it is worth discussing with a lawyer what additional precautions are advisable.


FAQ

Must a prenuptial agreement be made by a notary? Yes – Article 47 of the Family and Guardianship Code requires the form of a notarial deed on pain of invalidity. An agreement made without a notary has no legal effect.

Does a prenuptial agreement protect against a spouse’s debts towards all creditors? Not all. Under Article 47¹ of the Family and Guardianship Code, a prenuptial agreement is effective against a creditor only where the creditor knew of its existence at the time the obligation arose. A creditor who did not know about the agreement may pursue enforcement as if it did not exist.

Does a prenuptial agreement protect against debts the spouse incurred before it was signed? No. A prenuptial agreement operates only prospectively – it does not eliminate obligations that arose during the period of joint property, before the agreement was made.

Can a prenuptial agreement be entered into during the marriage? Yes. It can be entered into both before the wedding and at any point during the marriage. Its legal effects run from the date the notarial deed is executed.

Can a creditor challenge a prenuptial agreement? Yes, where it can be shown that the agreement was entered into with the purpose of defrauding creditors and the creditor was unaware of it. In such circumstances, the creditor may seek satisfaction despite the existence of the agreement.

What types of matrimonial property agreements exist in Poland? Polish law provides for four types: expansion of the joint property regime, restriction of the joint property regime, separate property, and separate property with equalization of gains. The most commonly used is separate property – colloquially referred to as an intercyza.

I am a foreign national – does Polish matrimonial property law apply to my marriage? It depends. EU Regulation No 2016/1103 on matrimonial property regimes governs which country’s law applies to the matrimonial property of spouses with connections to more than one EU member state. Where both spouses are habitually resident in Poland, Polish law will generally apply. Where one spouse is habitually resident abroad or the spouses are of different nationalities, the applicable law depends on the circumstances. Legal advice on the specific cross-border situation is strongly recommended before any matrimonial property agreement is entered into.


Considering a prenuptial agreement or have questions about matrimonial property? Call: +48 531 335 713 or email: kancelaria@prawnikodrozwodu.pl


This article is for general informational purposes only and does not constitute legal advice. Every family law case is individual and requires analysis of the specific facts and documents involved. The law firm accepts no liability for actions taken on the basis of the information contained in this article. For advice tailored to your situation, please contact our office.

Kancelaria Prawa Rodzinnego (Family Law Office): Adwokat Michalina Koligot, Adwokat Marta Krzyżanowicz, Adwokat Anna Konrady, Radca prawny Joanna Jędrzejewska ul. Mickiewicza 18a/3, 60-834 Poznań | tel. +48 531 335 713 | kancelaria@prawnikodrozwodu.pl | www.prawnikodrozwodu.pl

Share this entry