Inheritance tax: rules and obligations

Inheritance tax is regulated by the inheritance and gift tax act. The obligation depends on the relationship to the deceased, the value of the estate and compliance with formalities. Below is a practical explanation with current thresholds that should be verified against the law if rules change.

If you want a quick estimate, use the inheritance tax calculator.

When the tax obligation arises

The obligation generally arises at the moment the inheritance is acquired. In practice, the form of confirmation matters (court decision or notarial certificate). It is worth determining early whether an exemption applies and which form must be filed.

Tax groups and exemptions

The tax depends on the tax group. The closest family may qualify for full exemption, but only if formal conditions are met. For more distant groups, tax‑free thresholds and the tax scale apply. Exemption details: Inheritance tax exemption.

Current tax‑free thresholds for groups I–III are 36,120 PLN, 27,090 PLN and 5,733 PLN, but they apply only to acquisitions where the tax obligation arose after the relevant provisions entered into force.

Deadlines and forms

Most often SD‑Z2 is used to report an exemption and SD‑3 when tax is due. The SD‑Z2 deadline is 6 months from the tax‑obligation date; missing it can result in loss of exemption. Since 7 January 2026, the deadline can be restored if the taxpayer proves they were not at fault. Practical guide: Gift reporting — forms and deadlines.

Indicative examples

• Group 0 with timely SD‑Z2: typically 0 tax.
• Group I: tax on the excess over 36,120 PLN.
• Group III: tax on the excess over 5,733 PLN.

Examples are indicative and must be checked against thresholds and rates in force on the obligation date.

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.

When the tax obligation arises

Inheritance tax is tied to the moment you formally acquire the estate, usually after a court decision or notarial certificate. That date triggers reporting deadlines. Delays in formal confirmation can shift the timeline, so track the exact date carefully.

Debts and liabilities

The tax base is usually reduced by debts and charges connected to the estate. Document these liabilities to avoid overpaying tax. Keeping a clear list of assets and debts is essential.

Practical steps

• obtain the inheritance confirmation document,
• list assets and liabilities,
• check the relevant tax group and exemptions,
• file the correct form on time.

Example workflow

A safe workflow looks like this: first confirm the relationship group and possible exemption, then prepare the agreement and proof of transfer, then file the correct form, and finally store all documents together. This makes later checks easier and reduces the risk of missing a deadline.

Keeping records over time

If gifts or inheritance events repeat, maintain a simple register with dates, amounts and documents. Even a basic spreadsheet is enough. It helps you see when thresholds are exceeded and which form you should file.

Summary

Most problems come from missing paperwork, unclear valuation or late reporting. A short checklist and consistent documentation usually solves the issue without the need for additional correspondence with the tax office.

Practical example

If you receive the asset or money in several tranches, treat each tranche as part of the same overall gift from the same donor. Record the date and amount of each tranche. This makes it easier to decide when reporting is required and prevents accidental under‑reporting.

When to ask for help

If the value is high, the relationship is unclear, or the asset is complex (shares, property with encumbrances), a short consultation can prevent expensive mistakes. In many cases, the cost of advice is lower than the risk of penalties or additional tax.

See also

• Inheritance and gift tax: basics
• Inheritance tax exemption
• Division of inheritance — costs
• Tax-free thresholds and tax groups

Sources

• Inheritance and gift tax act (consolidated text) — thresholds and tax groups.
• Reliefs and exemptions (podatki.gov.pl) — SD‑Z2 deadlines and exemption conditions.
• New rules for inheritance and gift tax from 2026 — deadline restoration.

Frequently asked questions (FAQ)

FAQ is available as a separate block on the page and covers tax groups, deadlines and late‑filing consequences.