A recent Washington Department of Revenue (Department) determination highlights an important issue for SaaS companies, as implementation services and related travel costs may be subject to sales tax when they are provided in connection with a taxable SaaS product.
In the March 6, 2026, determination, a SaaS provider sold software to government customers and provided implementation services. These services included configuration, data migration, integration, testing, training, and go-live support. The company argued that implementation work was software customization and should not be subject to sales tax, but the Department disagreed. The Department determined that the SaaS products were taxable digital automated services, and under Washington law, services provided exclusively in connection with a digital automated service are also treated as retail sales, even when they are separately billed. Because the customers purchased the implementation services specifically to set up and use the company’s SaaS products, the Department found that the services were taxable along with the SaaS.
The decision also addresses travel expenses. When employees traveled onsite for implementation work, the company billed the customers for expenses such as airfare, rental cars, hotels and melas. Even though these were reimbursements only and the company did not make a profit on them, the Department still found the charges taxable. Since the travel expenses were incurred as part of implementing the taxable digital automated service, the reimbursement became part of the sales price and followed the tax treatment of the underlying SaaS transaction.
SaaS providers doing business in Washington should review how they handle implementation services and travel reimbursements. Separately listing these charges on an invoice does not necessarily make them nontaxable. The main question is whether the services are provided independently or only because the customer is implementing the company’s SaaS product. If they are exclusively connected to a taxable digital automated service, Washington may treat the implementation work and related travel reimbursements as taxable too. This decision is a good reminder that sales tax reviews should go beyond the subscription fee. Statements of work, implementation charges, and expense reimbursements can all affect the taxable amount.
(Det. No. 23-0004, 45 WTD 013 (2026), Washington Department of Revenue, March 6, 2026)