A logistics company in the Mazowieckie region received a tax reassessment notice in early 2025. The local tax authority reclassified its warehouse complex from agricultural outbuilding to commercial building – tripling the annual real estate tax overnight. The company had 14 days to respond before the decision became final.

Polish real estate tax is governed by the Act on Local Taxes and Fees, which ties the applicable rate directly to a property's official classification. When a municipality reclassifies a structure from a lower-rate category to a commercial or residential building, the tax burden can increase by a factor of three or more. Owners have the right to appeal to the Mayor or Head of Municipality within 14 days, and then to the Regional Administrative Court (Wojewódzki Sąd Administracyjny, WSA) if the first-instance decision is upheld.

This case study traces how we approached that dispute, the procedural steps that produced a favourable outcome, and the lessons that apply to any property owner facing a reclassification notice in Poland in 2025.

What triggered the 2025 reclassification wave?

Polish municipalities intensified property inspections after central guidance encouraged local authorities to align cadastral records with actual use. The National Court Register (KRS) data showed a surge in logistics and e-commerce registrations at warehouse addresses – a signal that prompted many tax offices to reclassify outbuildings as commercial premises. In our client's case, the trigger was a routine inspection in January 2025 that noted loading docks and racking systems inside a structure previously categorised as an agricultural shed.

The reclassification carried a concrete financial impact. The agricultural outbuilding rate is PLN 0.15 per square metre annually. The commercial building rate reached PLN 33.10 per square metre in 2025 – the statutory maximum set by the Ministry of Finance. On a 4,800 sq m facility, that difference exceeded PLN 158,000 per year. For a mid-size logistics operator, that figure is material. It also affects asset valuation, which matters when refinancing or selling the property.

Several other clients in Silesia and Małopolska received similar notices in the same quarter. The pattern was consistent: municipalities used building permit records, satellite imagery, and KRS filings to identify discrepancies between declared use and physical reality. Property owners who had never updated their land and building register (ewidencja gruntów i budynków) entries were the most exposed.

How did we structure the legal strategy?

The first step was a classification audit. Under Polish administrative law, the tax authority must base its reclassification on the land and building register held by the District Office (Starostwo Powiatowe). If that register still shows the old category, the municipality cannot unilaterally apply the higher rate without first initiating a separate administrative procedure to correct the register. This procedural gap was the cornerstone of our defence.

We obtained the current extract from the District Office within three days of instruction. The register still recorded the structure as an agricultural outbuilding. The tax authority had issued its reassessment without waiting for a formal register amendment – a procedural defect under the Code of Administrative Procedure (Kodeks postępowania administracyjnego, KPA). We filed an appeal to the Mayor's office within the 14-day window, citing this defect and attaching the extract as evidence.

Parallel to the appeal, we reviewed the original building permit and construction completion certificate. Both documents described the structure as a storage facility with no permanent human occupation – a factor that supports the lower-rate classification under established WSA case law. We prepared a technical opinion from a licensed building inspector confirming the structure lacked the features of a commercial building under the Act on Construction Law (Prawo budowlane).

  • Obtain the current land and building register extract immediately on receipt of any reclassification notice.
  • Check whether the tax authority initiated a register amendment before issuing the reassessment.
  • Review original building permits and completion certificates for classification language.
  • Commission a technical opinion from a licensed building inspector within the appeal window.
  • File the appeal within 14 days – this deadline is absolute and cannot be reinstated.

For clients who own property in multiple regions, the strategy also involves checking whether any commercial lease agreements reference the property's classification. A well-drafted commercial lease in Poland should include a clause allocating reclassification risk between landlord and tenant. Reviewing those provisions early avoids a secondary dispute about who bears the increased tax burden.

What did the process look like in practice?

The Mayor's office issued a decision within 30 days, partially upholding our appeal. It acknowledged the procedural defect but argued the register amendment was already in progress and the reassessment was therefore premature rather than void. This is a common position: authorities accept the defect but seek to preserve the substantive outcome. We appealed to the Samorządowe Kolegium Odwoławcze (Local Government Appeals Board, SKO) within 14 days.

We secured a full reversal of the reclassification decision for this Mazowieckie client (spring 2025). The SKO held that a tax reassessment issued before the register amendment becomes final is procedurally void. The client's annual tax liability reverted to the original figure, and the municipality was required to refund the overpayment made during the dispute period – an amount exceeding PLN 40,000.

The process took approximately four months from the initial notice to the SKO decision. That timeline is realistic for a well-documented appeal. Cases that proceed to the WSA typically take an additional 12 to 18 months. Clients should budget for both scenarios. Where the financial exposure is high, interim measures before the WSA can suspend enforcement of the reassessment while the case is pending – preventing cash-flow damage during litigation.

For a separate matter in Lower Silesia (summer 2025), we obtained a suspension of a reclassification order covering a mixed-use estate with both residential and commercial elements. That case raised the additional question of how to apportion tax rates across a single structure with dual use – a point on which the Polish Financial Supervision Authority (KNF) has no direct role, but which affects financing covenants tied to the property.

What lessons apply to property owners facing reclassification in 2025?

The 2025 wave is not over. Municipalities face budget pressure and reclassification generates immediate revenue. Owners who buy property in Poland without conducting a classification due diligence check are acquiring unknown tax exposure. The land and building register entry, the building permit, the completion certificate, and the actual use of the structure must all be consistent – or the gap becomes a target.

Personal liability is not directly triggered by a reclassification dispute, but the consequences for a company can be severe. If the board fails to challenge a void reassessment within the statutory window, the company forfeits its right to a refund and accepts a permanent increase in its cost base. That is an irreversible outcome. Directors of property-owning companies should treat reclassification notices as urgent legal matters, not administrative correspondence.

Three transferable lessons emerge from the 2025 cases we handled. First, the procedural route – challenging the absence of a prior register amendment – is available in most reclassification disputes and should be the first line of attack. Second, technical evidence from a licensed building inspector carries significant weight before the SKO and the WSA. Third, speed matters: the 14-day appeal window is unforgiving. Engaging a real estate lawyer in Warsaw or the relevant regional city immediately on receipt of a notice is not optional – it is the only way to preserve all available remedies.

Clients considering a property acquisition should also read our guide on buying property in Poland to understand classification risks before signing. Those managing commercial portfolios will find our analysis of office lease review key points useful for allocating reclassification risk in lease negotiations. Where a dispute ultimately affects a company's financial position, our note on liquidation of sp. z o.o. outlines the downstream corporate consequences.

Your company's specific situation may involve a combination of procedural defects, classification ambiguity, and contractual exposure. Each element requires a distinct response within a tight timeline. Delay at any stage precludes remedies that cannot later be recovered.

If your company has received a reclassification notice – or holds property where the register entry, building permit, and actual use do not align – we will review the documentation, identify the available grounds of challenge, and manage the appeal process from initial filing to SKO or WSA decision: info@kordeckipartners.com.

Frequently asked questions

Q: How long does a real estate tax reclassification appeal take in Poland?

A: A first-instance appeal to the Mayor or Head of Municipality must be decided within 30 days. An appeal to the Local Government Appeals Board (SKO) typically takes two to four months. If the matter proceeds to the Regional Administrative Court (WSA), expect an additional 12 to 18 months. Interim suspension of enforcement is available before the WSA and should be applied for at the outset of court proceedings.

Q: Can a municipality reclassify a property without amending the land and building register first?

A: This is a common misconception. Many tax authorities issue reassessments before the register amendment is finalised, treating the amendment as a formality. Under the Code of Administrative Procedure (KPA), the reassessment is procedurally premature if the register still shows the old classification. This defect is a strong ground of appeal and has been upheld by multiple SKO panels in 2025. Owners should check the register entry immediately on receipt of any reclassification notice.

Q: Who bears the increased tax cost if a commercial lease is already in place?

A: The answer depends on the lease terms. Polish commercial leases frequently include a clause requiring the tenant to pay real estate tax or to reimburse the landlord for tax increases. If the lease is silent on reclassification risk, the default position under Polish civil law places the tax obligation on the property owner. Reviewing the lease before filing an appeal is important: the outcome of the appeal may affect the landlord's right to pass through costs to the tenant.

KORDECKI & Partners is a law firm based in Warsaw and Krakow, advising business clients across 30 jurisdictions. Our team combines expertise in Polish and international law with a practical approach to real estate disputes, tax reclassification proceedings, and construction law. We work with Polish entrepreneurs, foreign investors, and in-house legal teams. To discuss your situation, contact info@kordeckipartners.com.

Disclaimer: This publication is provided for informational purposes only and does not constitute legal advice. The information herein should not be relied upon as a substitute for professional legal counsel tailored to your specific circumstances. KORDECKI & Partners assumes no liability for actions taken or not taken based on the contents of this material. For advice regarding your particular situation, please contact info@kordeckipartners.com.