[Washington Assessors]

Mason County, Washington - Assessor's Office

The Mason County Assessor is responsible for appraising real estate and assessing a property tax on properties located in Mason County, Washington. You can contact the Mason County Assessor for:

  • Paying your property tax
  • Checking the Mason County property tax due date
  • Appealing your property tax appraisal
  • Reporting upgrades or improvements
  • Information on your property's tax assessment
  • Your property tax bill

411 N Fifth - Building 1The Mason County Assessor's Office is located in Shelton, Washington. Shelton is the county seat of Mason County, where most local government offices are located.

Mason County Assessor Contact Information

Additional Mason County Information

Mason County Assessor's Office Services

There are three major roles involved in administering property taxes - Tax Assessor, Property Appraiser, and Tax Collector. Note that in some counties, one or more of these roles may be held by the same individual or office. For example, the Mason County Tax Assessor may also serve as the Mason County Tax Appraiser.

  1. The Mason County Tax Assessor is responsible for setting property tax rates and collecting owed property tax on real estate located in Mason County.
  2. The Mason County Property Appraiser is responsible for determining the taxable value of each piece of real estate, which the Tax Assessor will use to determine the owed property tax.
  3. The Mason County Tax Collector is responsible for collecting property tax from property owners. They issue yearly tax bills to all property owners in Mason County, and work with the sheriff's office to foreclose on properties with delinquent taxes.

When contacting Mason County about your property taxes, make sure that you are contacting the correct office. You can call the Mason County Tax Assessor's Office for assistance at 360-427-9670. Remember to have your property's Tax ID Number or Parcel Number available when you call!

Please call the assessor's office in Shelton before you send documents or if you need to schedule a meeting. If you have general questions, you can call the Mason County Courthouse at 360-427-9670-419.


Learn More

Find the tax assessor for a different Washington county

Find property records for Mason County

The median property tax in Mason County, Washington is $1,738.00


washington Property Tax Data All of the Mason County information on this page has been verified and checked for accuracy.
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