Commercial Fertilizer Dealers

New - changes for the 2025-2026 Fertilizer License renewal and tonnage reporting term!

Online licensing and tonnage reporting - New this year, existing license holders can apply online for your annual Wisconsin Fertilizer license, report annual fertilizer tonnage, apply for product permits, and pay fees. Current license holders can follow these instructions for applying for a license on MyDATCP v3. Credentials for logging in were emailed to current license holders with their expiration notice. You can also apply for a new license online.

For each licensed location, a separate tonnage report is required. Previously, a business with multiple Wisconsin locations was able to submit a single tonnage report for all facilities. This practice will no longer be available. The connection between your new license and location specific tonnage report can be found in the List of Commercial Fertilizer and Soil or Plant Additives Dealers spreadsheet linked under the "Resources" sidebar.

License numbers changed to a six-digit number (e.g. 654321). This replaces the previous 30-012345-012345 format. The new number, and the previous number it corresponds with, can be found in the List of Commercial Fertilizer and Soil or Plant Additives Dealers spreadsheet linked under the "Resources" sidebar.

Regulatory consultants: Prior to submitting online applications for your clients, contact us at datcpfert@wisconsin.gov so that we can provide online access.

Additional information can be found in our Frequently Asked Questions for Fertilizer License and Tonnage Reporting document. If you have any questions or concerns, please contact us at please contact us at datcpfert@wisconsin.gov or (608) 224-4537.

To distribute fertilizer products in Wisconsin, you must:

Have an annual license, valid October 1-September 30. The license fee is $30/year. A $10 ACCP surcharge is due for each 2026 license, for a total of $40 due; if the license locations is located in Wisconsin and distributes bulk fertilizer, an additional $12.50 is due, for a total of $52.50. The 2027 license total cost is $50; if the license location is located in Wisconsin and distributes bulk fertilizer, an additional $25 is due, for a total of $75. Details about the surcharge are available on DATCP's Agrichemical License Fees and Surcharges - Amounts and Recipients webpage.
Annually report tonnage and pay tonnage fees of $0.62/ton of fertilizer distributed in Wisconsin between the previous July 1 to June 30. A separate tonnage report is required for each licensed location. Tonnage is reported when you renew your license and is due on September 30. A $0.05/ton ACCP surcharge brings the total tonnage due to $0.67/ton for the 2026 license year. The 2027 report will include a $0.10/ton ACCP surcharge and will bring the total tonnage due to $0.70/ton.
For products that also contain soil and plant additive substances, obtain a soil or plant additive license and permit for the product

Regulatory requirements, guidance for selecting the correct type of permit to apply for, are summarized in this document.

For products that also contain liming materials, obtain a Liming Materials License for the product.

Forms

New Fertilizer License Application

Commercial Fertilizer License Renewal Application

Commercial Tonnage Report Form

Permit to Distribute Nonagricultural or Special-use Fertilizer

Fertilizer or Soil or Plant Additive Organic Exemption Form

Fertilizer and soil or plant additive export certificate of free sale application

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. The permit fee is $25/permit, a one-time charge.

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.