Reserved portion and a will — practical implications

A will changes who inherits, but it does not always eliminate the reserved portion. This is the key difference between testamentary freedom and statutory protection of close relatives.

Will and the reserved portion

If you were omitted in the will or received less than you would under statutory rules, the reserved portion may still be due. In practice, it is a monetary claim rather than a share in specific assets.

Disinheritance and its effects

Effective disinheritance can exclude the reserved portion, but it must be based on statutory grounds and properly stated in the will. In a dispute, the court checks whether the grounds were met.

Common mistakes with disinheritance

• not stating a concrete statutory reason,
• overly general or emotional justification without facts,
• contradictions between the will and the deceased’s earlier conduct or documents.

If disinheritance is defective, the reserved portion may still apply.

Waiver of inheritance

A waiver of inheritance in a formal agreement (usually notarial) also affects the reserved portion. This is a common family‑planning tool to arrange property matters during life.

Bequests and other benefits in the will

If the eligible person received a benefit under the will, its value can affect the final reserved portion amount. What matters is the real value and proper documentation.

Type of will and evidence

A notarial will usually leaves fewer disputes about authenticity, while a handwritten will often requires closer scrutiny of form and content. The form does not change the right itself, but it can affect procedural risk.

Specific bequests and instructions

If the will includes a specific bequest or an instruction, it can affect the real composition of the estate and later settlements. In practice, it is worth checking which assets were transferred and how that affects the estate base.

Invalid will and the reserved portion

If a will is found invalid, inheritance reverts to statutory rules, which changes the starting point for the reserved portion. In practice, a dispute about validity can shift the entire balance of a case.

When mediation makes sense

Will disputes are often emotional family conflicts. Mediation can be faster than litigation and helps reach a practical compromise, especially when the parties agree on the assets but not on the division.

Ambiguous will and interpretation

If a will is drafted imprecisely, the dispute often concerns its interpretation. This can delay proceedings and complicate the reserved portion claim, so evidence of the deceased’s intent becomes important.

How to check whether the reserved portion applies

1. Determine who would inherit by statute.
2. Compare it with the contents of the will.
3. Check whether any exclusion grounds apply.
4. Do a preliminary calculation.

Helpful materials: Reserved portion — rules, eligibility and process and Reserved portion — how much is it and how to calculate it.

Most common mistakes

• assuming a will automatically removes the reserved portion,
• skipping analysis of disinheritance or waiver,
• ignoring benefits already received under the will,
• missing documents that prove values.

See also

• Reserved portion — rules, eligibility and process
• Reserved portion — how much is it and how to calculate it
• Gift vs reserved portion — impact on calculation
• Reserved portion after parents — who can claim and when

Legal basis and sources

• Polish Civil Code — Articles 991-1011 (ISAP)
• Ministry of Justice — official information
• Supreme Court — case law database