To distribute fertilizer products in Wisconsin you must:
- Have an annual license, valid October 1-September 30.
- Annually report tonnage and pay tonnage fees of $0.62/ton of fertilizer distributed in Wisconsin.
- For products that also contain soil and plant additive substances, obtain a soil and plant additive license and permit for the product
Current license holders receive renewal packets by mail, along with forms to report tonnage. New applicants can download application materials here.
Commercial fertilizer license application
Permit to distribute nonagricultural or special-use fertilizer
Commercial tonnage report form
Fertilizer and soil or plant additive export certificate of free sale application
Fertilizer or Soil and Plant Additive Organic Exemption Form
Request for Social Security number form
Non-Agricultural and Special-Use Fertilizer Permits
If you distribute low-analysis fertilizers, you will need either a non-agricultural or special-use permit. Low-analysis fertilizers have less than 24 percent N-P-K. These permits remain in effect until you change the product's label or formulation.
- Non-agricultural fertilizers are used on gardens, lawns, golf courses, greenhouses and nurseries and other non-farm uses, and for research.
- Special-use fertilizers are for product labeled for remedying nutrient deficiencies unique to certain crops or local areas
- You may also need a soil or plant additive license and permit if the fertilizer product also include substances that claim to improve plant growth, crop yield or quality, or soil properties.
Organizations Providing Fertilizer-Related Resources
Wisconsin Agri-Business Association
Association of American Plant Food Control Officials
The Fertilizer Institute
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