Oklahoma Tax Calendar

Real Estate

Date	Events	Notes
February 1	Assessed Values Issued	N/A
April 5	Appeal Deadline	Varies by jurisdiction. 30 days from notice of assessment
November 15	Tax Bills Issued	N/A
December 31	Tax Bills Due	1st half installment due
March 31	Tax Bills Due	March 31st of the following year. 2nd half installment due

Personal Property

Date	Events	Notes
April - June	Assessed Values Issued	Varies by county
April - June	Appeal Deadline	20 days after notice of assessments are issued
March 15	Rendition Date	N/A
November 15	Tax Bill Issued	N/A
December 31	Tax Bill Due	Single payment due