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Are you having difficulty making your 2020 tax payment?

As a result of COVID-19, first-half 2020 property taxes were extended from April 30 to June 1, 2020. The second-half 2020 property taxes were due by November 2, 2020. Payment plans are available if you are having difficulty making payments by these due dates. Taxpayers must still pay late charges when enrolled in a payment plan, however plans established before December 1 can avoid the large 8% penalty imposed by State law, for unpaid taxes.

Note: If you are inquiring about a commercial business or have a mobile home please call 206-263-2844 to inquire about payment plan options.

How does a payment plan work?

Spreading out your tax obligation into monthly payments can be easier to manage for some taxpayers who are behind in paying 2020 property taxes. However, there are important factors to consider if a taxpayer wants to participate in a payment plan:

  • Payment plans do not reduce or eliminate your obligation to pay applicable interest and penalties as specified in RCW 84.56.020. The extent to which late charges are applicable depends on the date you start your payment plan.
  • Payment plans established before December 1, can avoid paying the 8% December penalty.
  • A payment plan can be established for any unpaid 2020 taxes, with monthly payments for up to 18 months.
  • Payment plans must factor in all applicable late charges throughout the duration of the payment plan, as required under State law.
  • To participate in a payment plan a taxpayer must first sign agreements with King County Treasury and then with Evergreen Notes Servicing (ENS). ENS is the company that will receive and process your monthly payments. Taxpayers must pay a $15 monthly processing fee charged by ENS. King County will absorb the $75 setup fee for taxpayers impacted by COVID-19 and who wish to participate in a 2020 payment plan.
  • Monthly payments must be sent directly to ENS. Monthly payments will not be accepted if sent to King County Treasury.

What is an example of a typical payment plan?

The below example will help to understand how a monthly payment plan is structured:

  1. A homeowner has already paid first half 2020 property taxes. However the homeowner does not have funds to pay the second half amount which is due October 31, 2020.
  2. The homeowner’s unpaid second half tax on the property is $3,000.
  3. The homeowner establishes a 12-month payment plan agreement, and chooses to begin payments in November 2020.
  4. The plan was established before December 2020, and therefore the homeowner can avoid paying the 8% penalty which is normally imposed in December, for unpaid taxes (as required by State law).
  5. The one percent monthly interest charge and the monthly $15 processing charge must also be factored into the monthly payment plan.
  6. In this scenario, the homeowner will make 12 monthly payments of roughly $295. When the terms are met after 12 months, the homeowner will have paid roughly $540 in interest and processing fees.
  7. If the homeowner ch0oses to delay payment and begin their 12-month payment plan in December, they must also pay the 8% statutory penalty imposed on December 1. In this scenario the homeowner’s monthly payment will be roughly $318 and will have paid over $800 in interest and processing fees.

What are the next steps if I want to participate in a payment plan?

After determining that a payment plan could possibly work for you, contact our office at or calling 206-263-2890.

Note: If you are inquiring about a commercial business or have a mobile home please call 206-263-2844 and inquire about payment plan options.

  1. Provide your tax account number and contact information, and the number of months you wish to participate in a payment plan via email to
  2. You will be given a “2020 Payment Plan Agreement” based on the amount due against your property tax account along with a copy of ENS contract. Review, initial and sign the documents and return to
  3. Follow the instructions as indicated at the bottom of the agreement.
  4. ENS will contact you with details. All payments must be sent to ENS. Monthly payments sent to King County Treasury will not be accepted and will be returned to you.
  5. Upon completion of the payment agreement, ENS will send the payment for your first-half taxes to Treasury for processing.
  6. The accounts will appear unpaid until all payments are received by ENS and forward to Treasury.
  7. If you have a mortgage on the property, be certain to contact them and tell them of the payment plan agreement established with the county.
King County Treasury Operations, 500 Fourth Ave., Suite 600 Seattle, WA 98104

Property Tax Information and Customer Service-------------------- 206-263-2890 ----
Mobile Homes/Commercial Personal Property---------------------- 206-263-2844 ----
Tax Foreclosures --------------------------------------------------------------- 206-263-2649 ----
Maintenance Assessment Mgmt Systems/Local Improvement Districts  206-263-1893