Key Dates for Software Providers


The Key Dates listed below are subject to change. Please check back periodically for the most up-to-date information.

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Date Message
July 19, 2021

Minnesota Letter of Intent (LOI) posted

Software Provider Requirements posted


Near final forms posted

Forms certification opens


Near final grid forms posted 


Voucher specifications posted

September 15, 2021

Draft state schemas for all tax types posted

Draft Minnesota leads reporting schema released

September 21, 2021

Conference call for software providers

October 1, 2021

Draft error rejection codes for all tax types posted

October 13, 2021

Final forms released

Final state schemas for all tax types posted

Final Minnesota leads reporting schema released 


Final grid forms posted

October 29, 2021

Letter of Intent (LOI) form is due. Late forms will not be accepted.

November 1, 2021

Certification test cases released

Final error rejection codes for all tax types posted

November 15, 2021

Efile and leads reporting ATS certification opens

December 31, 2021

Deadline to notify us of free file participation and criteria


Business filing season opens


Individual filing season opens


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Last Updated