Betts Patterson & Mines, Ps, V. State Of Wa Dept Of Revenue

CourtCourt of Appeals of Washington
DecidedFebruary 2, 2026
Docket86756-3
StatusPublished

This text of Betts Patterson & Mines, Ps, V. State Of Wa Dept Of Revenue (Betts Patterson & Mines, Ps, V. State Of Wa Dept Of Revenue) is published on Counsel Stack Legal Research, covering Court of Appeals of Washington primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

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Betts Patterson & Mines, Ps, V. State Of Wa Dept Of Revenue, (Wash. Ct. App. 2026).

Opinion

IN THE COURT OF APPEALS OF THE STATE OF WASHINGTON

BETTS PATTERSON & MINES, PS, No. 86756-3-I Appellant, DIVISION ONE v. ORDER GRANTING STATE OF WASHINGTON, MOTION TO PUBLISH DEPARTMENT OF REVENUE,

Respondent.

Respondent State of Washington, Department of Revenue moved to publish the

court’s opinion filed on November 3, 2025. Appellant Betts Patterson & Mines, PS filed

an answer to the motion. The court has determined that the motion should be granted.

Therefore, it is

ORDERED that respondent’s motion to publish the opinion is granted.

FOR THE COURT: IN THE COURT OF APPEALS OF THE STATE OF WASHINGTON

BETTS PATTERSON & MINES, PS, No. 86756-3-I Appellant, DIVISION ONE v. PUBLISHED OPINION STATE OF WASHINGTON, DEPARTMENT OF REVENUE,

MANN, J. — This case concerns the apportionment of a law firm’s gross income

for the purposes of Washington’s business and occupation (B&O) tax. Betts Patterson

& Mines (BPM) provides insurance coverage advice and defense litigation services to

insurance companies. BPM and the Washington State Department of Revenue

(Department) disagree as to where the benefit of the insurance litigation services is

received. The Board of Tax Appeals (Board) concluded that the services were received

at the location where litigation occurred. We agree with the Board and affirm.

I

BPM is a law firm with offices in Washington and Oregon. BPM provides various

legal services, including providing client advice on insurance coverage and insurance

defense litigation. No. 86756-3-I/2

In 2010, the legislature changed the method for apportioning gross income for

services to focus on where the customers received the benefit, which replaced the

historic method that looked at where the services were performed. LAWS OF 2010, 1st

Spec. Sess., ch. 23, § 101.

Prior to June 30, 2014, BPM did not apportion any of its revenues and reported

all of its revenue as Washington gross income. BPM renewed its apportionment

methods, and an accounting firm determined that BPM overpaid its B&O tax from June

1, 2010 to June 30, 2014.

In October 2014, BPM filed for a tax refund of $651,374. BPM calculated this

number by apportioning the receipts to the billing address of the insurance companies.

BPM explained that the billing address represented the claims administration and legal

departments of its insurance company customers. BPM asserted that the legal

department is where the customer receives the benefit of the insurance litigation and

defense services.

The Department held that BPM’s methodology of apportioning receipts was

unreasonable and granted a partial refund totaling $51,668. BPM unsuccessfully

appealed to the Department’s Administrative Review and Hearings Division. BPM

subsequently appealed to the Board of Tax Appeals (Board).

The Department moved for summary judgment. The Board granted summary

judgment to the Department and concluded the benefit of BPM’s insurance defense

services was received in the jurisdiction where the settlement occurred, litigation was

filed, or litigation occurred. King County Superior Court affirmed the Board’s decision.

BPM appeals.

-2- No. 86756-3-I/3

II

We review decisions by the Board under the Administrative Procedure Act (APA),

ch. 34.05 RCW. Echo Glob. Logistics, Inc. v. Dep’t of Revenue, 22 Wn. App. 2d 942,

945, 514 P.3d 704 (2022). Under the APA, a reviewing court may grant relief if the

Board “erroneously interpreted or applied the law.” RCW 34.05.570(3)(d); Steven Klein,

Inc. v. Dep’t of Revenue, 183 Wn.2d 889, 895, 357 P.3d 59 (2015). Because the

Board’s decision was on summary judgment, we must “overlay the APA ‘error of law’

standard of review with the summary judgment standard and review an agency’s

interpretation or application of the law de novo while viewing the facts in the light most

favorable to the nonmoving party.” Echo Glob., 22 Wn. App. 2d at 945. “A motion for

summary judgment may be granted if the written record shows that, viewing the

evidence in a light most favorable to the nonmoving party, there is no genuine issue as

to any material fact and that a party is entitled to judgment as a matter of law.” WAC

456-09-545; WAC 456-10-503. “The burden of demonstrating the invalidity of agency

action is on the party asserting invalidity.” RCW 34.05.570(1)(a).

A

BPM first argues that the Board erred in concluding that the benefit of BPM’s

insurance defense services was received at the location where litigation was filed. We

disagree.

Washington imposes a business and occupation (B&O) tax for the “act or

privilege of engaging in business activities.” RCW 82.04.220. “Washington’s B&O tax

system is ‘extremely broad,’ imposing a tax ‘upon virtually all business activity carried

on within the state.’” Dynamic Res., Inc. v. Dep’t of Revenue, 21 Wn. App. 2d 814, 819,

-3- No. 86756-3-I/4

508 P.3d 680 (2022) (quoting Steven Klein, 183 Wn.2d at 896). In computing the B&O

tax, taxpayers engaged in business in multiple jurisdictions are required to apportion

their income so that they only pay tax on income apportioned to Washington. RCW

82.04.460; Smith v. State, 64 Wn.2d 323, 334, 391 P.2d 718 (1964).

To determine the amount owed for the B&O tax, the Department uses an

apportionment formula. ARUP Labr’ys, Inc. v. State, 12 Wn. App. 2d 269, 280, 457

P.3d 492 (2020). To compute the apportionable income, RCW 82.04.462(3)(b)(i)

provides that the taxable income is attributed to the state “[w]here the customer

received the benefit of the taxpayer’s service.” In turn, for service-related businesses

like BPM, “the benefit is received where the customer’s related business activities

occur.” Former WAC 458-20-19402(303)(c), (c)(iv) (2015). 1 Finally, “[t]he express

purpose of the change in the law was to require businesses that ‘earn[] significant

income from Washington residents from providing services’ to ‘pay their fair share of the

cost of services that this state renders and the infrastructure it provides.’” Former WAC

458-20-19402(101) (quoting LAWS OF 2010, 1st Spec. Sess., ch. 23, § 101).

BPM asserts that its litigation services relate to the insurance companies’ legal

department, so the insurance companies receive the benefit of its services at the

address of its legal department. In contrast, the Department argues that BPM’s

customers receive the benefit at the location of litigation because (1) BPM holds itself

out to its customers as providing Washington specific litigation services, (2) its

insurance company clients related business activities is the litigation, and (3) the helpful

1 The regulation was amended on June 15, 2024, but it still provides that the customer receives

the benefit of the service where the customer’s related business activities occur. See WSR 24-11-073.

-4- No. 86756-3-I/5

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Related

Smith v. State
391 P.2d 718 (Washington Supreme Court, 1964)
Steven Klein, Inc. v. Department of Revenue
357 P.3d 59 (Washington Supreme Court, 2015)
Ramiro Valderrama, V. City Of Sammamish
561 P.3d 288 (Court of Appeals of Washington, 2024)

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