A provision in H0897 eliminates a sales tax break for data center construction—but most Idaho business owners haven't heard about it yet.
Most Idaho retail owners don't realize that a quiet change buried in H0897 just narrowed a major sales tax exemption that affects how data centers—and their construction contractors—do business in the state. If you work in construction, supply materials, or compete for commercial real estate deals, this matters.
Idaho has long offered a sales tax exemption to data center operators and their contractors on equipment and materials used in qualifying data centers. That exemption covered two categories: server equipment (the computers that store and process data) and the physical facilities themselves (construction materials, structural components, fixtures).
H0897 narrows that exemption. Starting April 1, 2026, data centers that begin construction after that date will no longer qualify for the sales tax exemption on construction materials and facility components. The exemption for internal server equipment remains intact.
In plain terms: if you're a contractor or supplier selling materials for a new data center that breaks ground on or after April 1, 2026, those sales are now taxable. The exemption still applies to the servers and computing equipment going inside.
The law is effective retroactively to January 1, 2026—meaning the cutoff date of April 1, 2026 is the real deadline. Any data center project that commences construction before April 1, 2026 can still use the full exemption on both equipment and facilities. Projects starting on or after April 1, 2026 cannot.
This creates a narrow window. If you're involved in data center development or construction contracting, projects breaking ground between now and March 31, 2026 are grandfathered in under the old rules.
The immediate impact falls on:
If you're in any of these categories, the sales tax cost of a new data center facility just increased. That changes project budgets and may shift where companies choose to build.
If you're involved in data center development or construction, review your pipeline. Projects in active planning stages should evaluate whether accelerating a construction start before April 1, 2026 makes financial sense. The sales tax savings on materials and structural components can be substantial on large facilities.
If you're a contractor or supplier, clarify with clients whether their projects qualify for the old or new exemption rules based on their construction commencement date. Pricing and tax treatment hinge on that timing.
The change is codified in Section 1, Page 1 of H0897, amending Idaho Code §63-3622VV(1).
Idaho Retailers Association members can access a detailed guide to H0897's provisions affecting your sector at no cost through your membership portal.