What Information Is Needed to Prepare a Najem Okazjonalny Guarantee

What information is needed to prepare a Najem Okazjonalny guarantee

The guarantee (oświadczenie właściciela lokalu) is a mandatory document for concluding a Najem Okazjonalny lease in Poland. To have legal effect, it must include several required data points. Missing items or mistakes can lead a notary to refuse certification or render the guarantee invalid.

Core guarantor details

The guarantor confirms there is a dwelling to which the tenant can move. You will need:

• Guarantor’s full name (as in the passport or residence card).
• Residential address, matching the address of the property indicated in the guarantee.
• ID document series/number (passport or Polish ID — dowód osobisty).
• Contact details (phone or e-mail).
• Signature, notarized if required.

Tenant details

The document must also state the tenant’s details:

• Tenant’s full name (per passport or residence card).
• Date of birth and ID document number.
• Address of the rented premises (as per the Najem Okazjonalny lease).

Property details

Pay special attention to the description of the dwelling the tenant undertakes to move to:

• Full property address (street, flat/house number, postcode, city).
• Ownership/title — the guarantor must own the dwelling or have a legal right to use it.
• Guarantor’s consent to accommodate the tenant if needed.

Additional elements

• Date of issue — should be current and aligned with the lease term.
• Validity period of the guarantee — typically matches the lease duration.
• Notarial certification — strengthens the document’s legal force.

Common mistakes

• Missing full address or an address that does not match reality.
• Listing a guarantor who is not the property owner.
• Missing signature or a signature that does not match the ID.
• Spelling errors in names or in document numbers.

How to prepare the guarantee correctly

1. Collect all guarantor and tenant data in advance.
2. Check the property documents to confirm ownership/title.
3. Draft the guarantee using an official/approved template.
4. Have the document notarized if required.
5. Keep a copy of the guarantee for both parties.

Conclusion

A Najem Okazjonalny guarantee requires precise data about the guarantor, the tenant, and the property address. The more complete and accurate the document, the stronger its legal effect. To avoid mistakes, use vetted templates and, where appropriate, obtain notarial certification.