How Your Matrimonial Regime Affects Your Loan Signature Obligations

In Belgium, every married couple is subject to a matrimonial regime. This legal framework defines how your assets are managed between spouses and how you are both bound towards third parties, including banks and credit companies. When you apply for a consumer loan or a mortgage, this regime determines whether the lender can require one or two signatures and on which assets they can recover the debt.

The law distinguishes between a primary matrimonial regime, which is mandatory for all married couples, and a secondary matrimonial regime, which can vary depending on whether you have opted for the legal community regime or a conventional separation of property. Understanding this distinction is essential before deciding to sign a credit contract alone or jointly with your spouse.

Beyond the legal theory, these rules have very concrete consequences: the number of signatures on your loan will impact both your personal liability and the protection of the family’s main residence. This is why most financial institutions are extremely cautious and often request the joint signature of both spouses, even when the law would, in principle, allow a single signature.

Consumer Credit, Installment Purchases and Mortgages: When Is Joint Signature Mandatory?

In a legal community regime, the management of common assets is based on the principle of concurrent management: each spouse can, in principle, act alone and perform all management acts. However, when it comes to debts contracted in the family’s interest, the law and financial practice become much stricter, especially for consumer credit, installment purchases and mortgages.

For everyday household needs or the children’s education, each spouse may take out a credit alone, and the resulting debt will still be considered common and recoverable on all three asset categories (the husband’s personal assets, the wife’s personal assets and their common assets). In practice, however, most credit institutions systematically require both spouses to sign, in order to avoid disputes and to ensure that both are fully bound toward the lender.

There are also specific exceptions to concurrent management, for which the joint signature of both spouses is legally required, without any possible derogation:

In summary, even though the law technically allows some flexibility, current lending practices in 2026 strongly favor joint signature to secure the repayment and clarify responsibilities from the very beginning of the credit relationship.

Separation of Property: Can You Really Sign a Loan Alone?

Under a conventional separation of property regime, each spouse is, in principle, free to manage their own personal assets independently. In theory, this would allow one spouse to take out a credit in their own name only, without directly committing the other spouse’s assets, except for debts clearly linked to household needs or the children’s education.

However, the reality of the credit market in 2026 is different. To avoid long and complex discussions about the nature of the debt (household need or not?), most banks and credit companies systematically request both spouses’ signatures, even under a separation of property regime. This approach offers greater legal security and clarity for all parties involved.

If you are married under a separation of property regime and wish to borrow alone, it is strongly recommended to discuss your situation with a specialist beforehand. An experienced credit broker can help you understand the consequences of signing alone versus signing together, and guide you towards the most appropriate and secure solution for your couple.