Property taxes are due April 30, 2026, and October 31, 2026. You can make your payment online, by mail, over the phone, at a drop box or in person. The Spokane County Courthouse address, office hours and drop box locations are all available on our website at www.spokanecounty.gov/treasurer. Because the courthouse may not be convenient for everyone, we are also pleased to offer in-person tax collection services at two other locations in April and October: Spokane Valley City Hall and the North Spokane Library. We'll be at Spokane Valley City Hall (10210 E. Sprague Avenue, Spokane Valley, WA 99206) on Friday, April 17th & 24th, and again on Friday, October 16th & 23rd, from 8:30 a.m. to 4:00 p.m. We'll be at the North Spokane Library (44 E. Hawthorne Road, Spokane, WA 99218) on Tuesday, April 21st & 28th, and again on Tuesday, October 20th & 27th, from 9:00 a.m. to 4:00 p.m. Note that no cash will be accepted at these locations; only check or credit/debit payments are accepted at these locations and applicable card fees will apply.