Poland’s standard agricultural-tax rates are set to fall by approximately 6.7% in 2027 after Statistics Poland announced a lower reference price for rye, the commodity used to calculate the tax.
The new benchmark is PLN 62 per 100 kilograms of rye, compared with PLN 66.42 for the 2026 tax year.
Under Poland’s existing agricultural-tax legislation, the change reduces the standard annual calculation to PLN 155 (approximately $40 or €35) per conversion hectare for qualifying agricultural holdings, down from PLN 166.05 in 2026.
For other agricultural land subject to the tax, the standard calculation falls to PLN 310 per physical hectare, compared with PLN 332.10 this year.
The new reference price was announced by Statistics Poland (GUS) on 19 October and published in Poland’s official legal journal, Monitor Polski.
The reduction could benefit farmers, agricultural businesses and owners of taxable agricultural property as they prepare their 2027 budgets.
However, the final amount payable will depend on the land’s classification, applicable exemptions and any decisions by local municipalities to use a lower rye reference price.
How much will agricultural tax fall in 2027?
Poland calculates agricultural tax using a national reference price for rye rather than a fixed monetary rate independently determined each year.
Under the Agricultural Tax Act of 15 November 1984, the tax calculation uses two different quantities of rye depending on the category of taxable land.
For agricultural holdings, the standard annual tax is equivalent to the value of 2.5 decitonnes of rye per conversion hectare.
For other agricultural land subject to agricultural tax, the calculation uses five decitonnes per physical hectare.
A decitonne, also known as a quintal, equals 100 kilograms.
Applying the newly announced PLN 62 reference price produces the following comparison:
| Agricultural-tax calculation | 2026 | 2027 | Annual reduction |
|---|---|---|---|
| Rye reference price per 100kg | PLN 66.42 | PLN 62.00 | 6.7% |
| Agricultural holding, per conversion hectare | PLN 166.05 | PLN 155.00 | PLN 11.05 |
| Other taxable agricultural land, per physical hectare | PLN 332.10 | PLN 310.00 | PLN 22.10 |
The figures represent standard calculations before any municipal reduction or individual exemption.
For example, an agricultural holding with 10 conversion hectares would have a standard annual tax calculation of PLN 1,550 in 2027, compared with PLN 1,660.50 under the 2026 benchmark.
That represents a reduction of PLN 110.50, provided the municipality applies the national reference price in both years and no exemptions or other adjustments affect the calculation.
The lower price was confirmed in the official GUS communication published as Monitor Polski 2026, item 1020.
Why rye prices determine Poland’s agricultural tax
The use of rye prices reflects a long-established feature of Poland’s agricultural-tax system.
Rather than applying a percentage to a farm’s annual profits or the market value of its land, the calculation links the tax base to an average agricultural commodity price.
The GUS reference price covers 11 consecutive quarters preceding the quarter immediately before the relevant tax year.
For the 2027 calculation, that means the period from the beginning of 2024 through the third quarter of 2026.
Using a multi-year average reduces the influence of short-term changes in grain prices on the annual tax calculation.
It also means the PLN 62 benchmark should not be confused with the current market price of rye or a forecast of what farmers will receive for grain sold in 2027.
The reference price is determined using historical purchase-price statistics.
The fall from PLN 66.42 to PLN 62 therefore affects the tax calculation automatically under existing legislation.
It does not represent a newly announced tax cut enacted through separate legislation.
Municipalities can set lower reference prices
Although GUS announces the national benchmark, Poland’s municipalities retain an important role in determining agricultural-tax liabilities.
Under the existing law, a municipal council (rada gminy) may pass a resolution reducing the rye purchase price used to calculate agricultural tax within its jurisdiction.
The Finance Ministry’s guidance on agricultural-tax rates confirms that councils can apply a lower price than the GUS figure.
For example, a municipality choosing a reference price of PLN 58 rather than PLN 62 would produce a standard agricultural-holding calculation of PLN 145 per conversion hectare.
If the municipality does not reduce the reference price, the national GUS figure is used.
This means that the 6.7% fall in the national benchmark will not necessarily translate into an identical reduction in every municipality.
Some local councils may have applied substantial reductions in 2026 and could adopt different policies for the following year.
A landowner’s actual tax liability could therefore fall by less than the national percentage, remain unchanged or, in certain circumstances, increase compared with a previously discounted local rate.
Farmers and landowners should check the relevant municipal resolution before finalising their 2027 tax calculations.
Conversion hectares are not the same as physical hectares
An important feature of Polish agricultural tax is the distinction between physical hectares and conversion hectares.
A physical hectare measures an actual land area of 10,000 square metres.
A conversion hectare (hektar przeliczeniowy) is a tax calculation unit adjusted according to factors including the quality, classification and type of agricultural land and the applicable agricultural tax district.
Poland divides agricultural areas into four tax districts for this purpose.
As a result, two agricultural holdings with the same physical area can have different numbers of conversion hectares.
This affects their agricultural-tax calculations even when both are in municipalities applying the same rye reference price.
For tax purposes, an agricultural holding generally comprises qualifying agricultural land exceeding one physical hectare or one conversion hectare, subject to the statutory definitions.
Other agricultural land can fall under the separate calculation using physical hectares.
The Finance Ministry’s agricultural-tax guidance explains how land registers, soil classes and conversion factors determine the relevant taxable area.
Land classified as agricultural but used for business activity other than agriculture may fall outside agricultural tax and instead be subject to different property-tax treatment.
The classification of the land therefore remains as important as the published rye reference price.
What agricultural businesses and landowners need to do
The new benchmark affects the 2027 tax year, rather than agricultural-tax liabilities already established for 2026.
Agricultural tax is collected by the municipality where the land is located.
It can apply to individuals, companies and other qualifying entities, including owners, perpetual usufruct holders and certain land possessors.
The administrative requirements differ according to the taxpayer.
Individuals generally submit form IR-1 when circumstances creating or changing their agricultural-tax liability arise, such as purchasing land or changing its classification.
Where the relevant registered details remain unchanged, the annual GUS price update alone does not normally require an individual to submit a new IR-1 form. The municipality determines the amount payable through its tax assessment.
Companies and other entities required to self-assess generally submit an annual DR-1 agricultural-tax declaration.
Under the standard rules, this declaration is due by 15 January of the tax year.
Agricultural tax is ordinarily paid in four instalments, with statutory payment dates in March, May, September and November.
The Finance Ministry also sets out specific arrangements for low annual liabilities and changes in taxable land during the year.
Businesses with agricultural property in more than one municipality may need to account for different local reference-price resolutions.
What the lower benchmark means for the agricultural sector
For agricultural businesses, the new GUS figure provides an early basis for estimating an element of their 2027 operating costs.
Although the annual reduction per hectare is relatively modest, it may be more significant for businesses controlling large areas of taxable agricultural land.
The benchmark is also relevant to companies and investors evaluating the ongoing costs of agricultural land ownership in Poland.
However, agricultural tax represents only one element of the financial obligations associated with farmland.
The latest GUS communication does not change the rules governing agricultural income taxation, property classification, land ownership or other applicable taxes.
Nor does it alter the statutory formula for calculating agricultural tax.
The next important development will be the adoption or confirmation of municipal reference prices for 2027.
These local decisions, alongside the characteristics of each property and any applicable exemptions, will determine the amount farmers and agricultural landowners actually pay.
For now, the national calculation base has been formally established at its lower level, providing a clearer starting point for agricultural-tax budgeting in 2027.
