Treasurer-Tax Collector
The Treasurer-Tax Collector’s Department operates three divisions - Treasury, Property Tax, and Central Collections. While the activities of each division are unique, the primary purpose of the department as a whole is to collect revenue owed to the County, cities, special districts, school districts, and the court system. The department is committed to providing excellent customer service and assuring effective utilization of the public’s tax dollars through a program of performance measurement and management.
Understanding Postmarks

Property tax payments must be received or postmarked by the delinquency date to avoid penalties. If a payment is received after the delinquency date, with no postmark, the payment is considered late and penalties will be imposed, in accordance with State law. A 10% penalty is added to late 1st installments and a 10% penalty and additional $30.65 charge is added to late 2nd installments.

Postmarks are imprints on letters, flats, and parcels that show the name of the United States Postal Service (USPS) office that accepted custody of the mail, along with the state, the zip code, and the date of mailing. The postmark is generally applied, either by machine or by hand, with cancelation bars to indicate that the postage cannot be reused. Taxpayers who send their payments by mail are cautioned that the USPS only postmarks certain mail depending on the type of postage used, and may not postmark mail on the same day deposited by a taxpayer.

Postage that is postmarked

  • ​​Standard Postage Stamps: Stamps purchased and affixed to mail as evidence of the payment of postage.

Postage that is not postmarked

  • Metered Mail: Mail on which postage is printed directly on an envelope or label by a postage machine licensed by the USPS. Many private companies use these types of postage machines.
  • Pre-Canceled Stamps: Stamps sold through a private vendor, such as stamps.com®. 
  • Automated Postal Center (APC) Stamps: Stamps, with or without a date, purchased from machines located within a USPS lobby.
  • Permit Imprint: Pre-sorted mail used by bill pay services, such as online home banking.

If you use these types of postage options, the USPS will not postmark your mail and penalty fees for late payment will apply if not received by the deadline for each installment.  

Other options

  • Purchase and complete a Certificate of mailing from the USPS, which is a receipt that provides evidence of the date that your mail was presented to the USPS for mailing. It can only be purchased at the time of mailing through the USPS. The USPS charges a fee for this service.
  • Purchase a Postage Validated Imprint (PVI) Label from a USPS retail counter or window. The PVI is applied to a piece of mail by personnel at the retail counter or window when postage has been paid to mail that item. The item is retained in USPS custody and is not handed back to the customer. The date printed on the PVI label is the date of mailing.

Make Payment    View and Print Tax Bill

 Contact Treasurer

Treasurer-Tax Collector

Property Tax Division
530.538.7701
taxes@buttecounty.net

Central Collections Division
530.538.7362
collections@buttecounty.net

Treasury Division
530.538.7576
treasury@buttecounty.net

 Locations & Hours

25 County Center Drive
Suite 125

Oroville, CA 95965

Map of County Complex

Office Hours
Monday  - Friday
9:00am to 5:00pm

Excludes Holidays

 News & Announcements

The 2014-2015 secured property  tax bills are available to view and pay online and hard copies were mailed to property owners the week of October 6th. The first installment is due November 1st but taxpayers have until the close of business on December 10th to pay without penalty.  More about payment options.  

Claims for excess proceeds from the June 2014 property tax auction are currently being accepted. Read more.