Plat Information

Due Dates
Formal plats that are processed in the Treasurer's Office with the following tax schedule, delinquent taxes are due year round:
  • January 1 to Tax Certification Date*: current year in full plus 25% advance
  • Tax Certification Date* to May 31: current year in full
  • June 1 to next year Tax Certification Date*: current year in full and estimated next year plus 25% advance. (RCW 58.08.040)
*Date taxes are levied and certified by Treasurer ranges from January 1 to February 15.