Commercial Fertilizer Dealers

​​​​​​​​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​ lice​nse 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 So​cial Security numb​er 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 Fer​tilizer-Related Resources

Cooperative Netwo​rk 

Wisconsin Agri-Business Association

Association of American Plant Food Control Officials

The Fertilizer Institute

Back to main certification and licensing page​​