Wash. Admin. Code § 458-12-060
(2) Who is required to list personal property with the county assessor? Every person is required to list all taxable (i.e., nonexempt) personal property in the person's ownership, possession, or control. RCW 84.40.185 and 84.40.190. Every person required to list personal property must deliver to the county assessor a form listing all of the person's taxable personal property that was located in the county as of 12:00 p.m. on January 1st of the assessment year. The listing may be delivered to the assessor either in person, by mail, or by electronic transmittal (e.g., internet-based application, email, or facsimile) if available. The listing does not need to be signed or verified under penalty of perjury. (Chapter 302, Laws of 2003.)
(b) What other information must be included in the personal property listing? In addition to a listing of all categories of taxable personal property, a listing form must also include:
(e) What if the assessor believes that an incomplete or inaccurate listing has been made? When the assessor believes that an incomplete or inaccurate listing has been made, the assessor has the following options:
(f) What if the owner of personal property moves to another county or into this state after January 1st? The owner of taxable personal property who moves from one county to another between January 1st and July 1st will be assessed in the county whose assessor first calls upon the owner to make a listing. The owner of personal property who moves into this state from another state between January 1st and July 1st must make a listing of taxable personal property that the person owned on January 1st of the assessment year with the assessor in the county in which the person resides.
If the owner of personal property moves to another county or into this state after January 1st and can satisfy the assessor that the owner's property has been assessed and will be held liable for the tax on the current year in another state or county, the owner cannot be assessed again for the current year. RCW 84.44.080.
For purposes of this rule, the term "person" includes natural persons and artificial persons such as partnerships, corporations, limited liability companies, associations, trusts, and estates.
(3) Assessor's duty to maintain list of persons liable to assessment. Assessors must maintain an alphabetical list of the names and last known addresses of all property owners in the county who are subject to assessment of personal property. On or before January 1st of each year, the assessor is required to mail or electronically transmit (e.g., email) a notice to such persons that a listing is required along with a listing form. The notice and listing form must be in accordance with forms prescribed by the department of revenue. If practicable, the notice and listing form mailed or electronically transmitted to each taxpayer must include a copy of the previous year's listing. RCW 84.40.040. A copy of the taxpayer's previous year's listing must also be provided to the taxpayer upon the taxpayer's request.
(b) What are the assessor's duties upon receipt of a personal property listing? Upon receipt of a personal property listing, the assessor will determine the true and fair value of the property listed and enter one hundred percent of the true and fair value of the property on the assessment roll opposite the name of the party assessed (i.e., the owner of the property). The assessor may, after giving written notice of the action to the person assessed, add to the assessment list any taxable property that should have been included in the list but was omitted by the taxpayer. RCW 84.40.040.
RCW 84.40.200 requires that a copy of the completed personal property listing containing the assessor's determination of the true and fair value of the property assessed must be provided to the person assessed, or to the person listing the property. The information may be provided in person, by mail, or by electronic transmittal if available.
(4) Listing of personal property by manufacturers. This subsection provides specific information about the listing of taxable personal property by manufacturers. A manufacturer must make and deliver to the assessor a personal property listing. The listing is made in the county where the personal property is situated. RCW 84.44.010. The listing must include the manufacturer's stock, engines, machinery, and other nonexempt personal property, together with the year of acquisition and total original cost for each category. Detailed information about the cost of personal property is contained in subsection (2)(b)(ii) of this rule. Manufacturer's stock that constitutes "business inventories," as that term is defined in RCW 84.36.477, is exempt from ad valorem taxation and need not be included in the personal property listing.
Fixtures considered by the assessor as part of any parcel of real property should not be included in a manufacturer's personal property listing. For detailed information about fixtures or trade fixtures, refer to WAC 458-12-005 and 458-12-010.
[Statutory Authority: RCW 84.08.010 and 84.08.070. WSR 04-01-119, § 458-12-060, filed 12/17/03, effective 1/17/04; Order PT 68-6, § 458-12-060, filed 4/29/68.]