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Level 2
March 4, 2026

39598

  • March 4, 2026
  • 2 replies
  • 0 views

The following diagnostic is generating: e-file: The electronic postmark date is not valid. Property tax refund returns containing form PROPST must be filed on or after March 15. (ref. #39598)

    2 replies

    Level 2
    March 4, 2026

    I assume this is related to the M1PR that we are attempting to efile. In other words, we need to wait until 3/15 to file the return as a result?

    Level 5
    March 4, 2026

    Minnesota does not accept those returns until March 15th.  Make sure you are using the 2026 property tax statements to calculate.