Montana

Lien Date – January 1

Real Property Information

  • Assessment Notice Issue Date May 1
  • Appeal Deadline June 1; 30 days from NOV; Protests filed with the county board by June 30

Real Estate Tax Bill Payment Information

  • Tax Bills Issued November 1
  • Single Payment Due (Delinquent Date) November 30
  • First Installment Due (Delinquent Date) November 30
  • Second Installment Due (Delinquent Date) May 31

Personal Property Information

  • Assessment Notice Issue Date May 1
  • Appeal Deadline June 6
  • Rendition Date January 31 (30 days from receipt of form)

Personal Property Tax Bill Payment Information

  • Tax Bill Issued May 1
  • Single Payment Due (Delinquent Date) June 30
  • First Installment Due (Delinquent Date) November 30
  • Second Installment Due (Delinquent Date) May 31 of the following year