Inheritance and gift tax: basics

Inheritance and gift tax governs the taxation of acquiring assets by inheritance or gift. The key factors are the relationship to the donor/deceased, the value of the acquisition and formalities (reporting and documents). This is a general page; below are the essentials and links to detailed guides.

What the tax covers

The tax covers acquisition of assets through inheritance, gifts and other non‑gratuitous events specified by law. In practice, inheritance and gifts are the most common cases.

Who pays

The taxpayer is the person who acquires the assets (heir or recipient). The tax depends on the tax group, i.e. the relationship to the person transferring the assets. See: Tax‑free thresholds and tax groups.

Tax obligation and deadlines

The obligation generally arises at acquisition, but for inheritance it is tied to formal confirmation by a court or notary. The SD‑Z2 reporting deadline is 6 months and runs, among others, from the date the inheritance decision becomes final or from registration of the notarial certificate of inheritance. Deadlines are statutory and missing them can mean losing an exemption, although since 7 January 2026 the deadline can be restored if the taxpayer proves they were not at fault. Guide: Gift reporting — forms and deadlines.

Exemptions in brief

The key exemptions concern the closest family (group 0) but require formal conditions. See: Gift tax exemption and Inheritance tax exemption.

Inheritance vs gift — practical differences

Inheritance focuses on proof of acquisition (court decision or notarial certificate). Gifts focus on the form of transfer (transfer, agreement, deed) and timely reporting. The tax logic is similar, but the formalities differ.

Key points:

• Inheritance: the obligation is tied to formal confirmation by a court or notary.
• Gift: the obligation usually arises at the moment of transfer (bank transfer, agreement, deed).

If an inherited asset is discovered later, deadlines may run from the date you learned about it. Keep evidence of that date.

Forms in practice:

• SD‑Z2: when you claim the closest‑family exemption (inheritance or gift).
• SD‑3: when tax is due or the exemption does not apply.

What the tax covers beyond inheritance and gifts

The act also covers other cases of free acquisition, e.g. non‑gratuitous dissolution of co‑ownership or acquisitive prescription. These situations require separate checks because the moment of obligation and deadlines may differ.

Preparing documents

Typical documents include:

• proof of acquisition (court/notary),
• asset documents or gift agreement,
• value evidence (valuation, sales agreement),
• proof of transfer for monetary gifts.

Better documentation reduces the risk of corrections or disputes.

Common mistakes

Typical issues are:

• missing a deadline,
• misclassifying the tax group,
• lacking value evidence,
• assuming exemption applies automatically.

Quick decision map

1. Identify whether it is inheritance or a gift and the form of acquisition.
2. Determine the tax group based on family relationship.
3. Check whether an exemption applies and what formalities are required.
4. Gather documents and file the correct form on time.

Document checklist

• acquisition proof (court decision or notarial certificate),
• asset documents (e.g. real estate, accounts, shares),
• value evidence (valuation, sale agreement, appraisal),
• proof of transfer for monetary gifts.

Valuation and dispute risk

For larger estates, especially real estate, the market value is crucial. Disputes over value can extend proceedings and increase costs. A valuation or transaction documents help justify the adopted value.

When a calculator helps

A calculator provides a quick risk estimate and allows you to compare scenarios. It does not replace a formal settlement, but it helps decide whether additional advice is needed.

Next steps

For more detail, use the dedicated guides:

• Inheritance tax
• Gift tax

For complex cases, also review documentation requirements and aggregation rules.

If you are unsure about classification, check official guidance or contact the tax office.

Practical checklist

Before you rely on an exemption or calculate tax, go through a short checklist:

• confirm the relationship group and whether a full exemption is possible,
• determine which form applies (SD‑Z2 for exemption or SD‑3 for taxation),
• establish the tax base from market value and allowable deductions,
• document the date of acquisition and the method of transfer,
• keep all evidence for future verification.

Documents to keep

Typical documents include a gift agreement, confirmation of transfer or receipt, identity data of both parties, and any valuation or price evidence. If the item is real estate or a share in property, a notarial deed and land‑register documents are usually required. Clear documentation is the simplest way to avoid disputes with the tax office.

Common mistakes

• assuming exemption applies without filing the form,
• missing the reporting deadline,
• ignoring aggregation of multiple gifts from the same donor,
• using cash without proof of transfer,
• relying on informal agreements without written confirmation.

Final note

Rules and thresholds can change. If the amount is significant or the facts are complex, consider professional advice and always verify the current legal basis.

See also

• Inheritance tax
• Gift tax
• Inheritance tax exemption
• Gift tax exemption
• Tax-free thresholds and tax groups

Sources

• Reliefs and exemptions (podatki.gov.pl) — SD‑Z2 deadlines and exemption conditions.
• New rules for inheritance and gift tax from 2026 — obligation date for inheritance and deadline restoration.