A provision in H0897 eliminates a sales tax break for data center construction materials—and it may affect your suppliers and customers sooner than you think.
Most Idaho retailers don't realize that a quiet change in state tax law could reshape how data center projects are taxed in the state—and potentially affect supply chains, construction material sales, and customer relationships.
Here's what happened: Idaho previously granted qualifying data center operators a sales tax exemption on two categories of equipment and materials: eligible server equipment AND new data center facilities (including construction materials, buildings, and fixtures). That dual exemption made Idaho competitive for attracting large data center investment.
House Bill 0897 narrows that exemption significantly. Starting with projects that commence construction on or after April 1, 2026, the sales tax exemption applies only to the server equipment itself. The exemption for construction materials, building components, and fixtures is eliminated for those new projects.
If you sell construction materials, HVAC systems, electrical components, or other building supplies to contractors working on data center projects, this change directly affects your customers' tax obligations. Projects breaking ground before April 1, 2026, retain the full exemption. Projects starting on or after that date will owe sales tax on construction materials and facility components—a meaningful cost increase that your customers will factor into their budgets and timelines.
The effective date of the law itself is retroactive to January 1, 2026, but the April 1, 2026 construction-commencement cutoff is what determines which projects are subject to the new, narrower rule. This creates a window: any data center operator planning a project has a financial incentive to begin construction before April 1, 2026, to preserve the broader exemption.
For retailers and suppliers, this may mean:
Increased demand before April 1, 2026: Customers may accelerate projects to lock in the old exemption structure, potentially creating a surge in orders for construction materials and equipment.
Changed pricing conversations after April 1: Once the cutoff passes, your data center customers will be budgeting for sales tax on materials. Clarifying your pricing and tax treatment early prevents confusion and disputes.
Supplier relationships: If you work with general contractors or construction firms serving data centers, understanding this change helps you communicate accurately about costs and timelines.
The amendment is found in Section 1, Page 1 of H0897, which revises Idaho Code § 63-3622VV(1). The law is effective retroactively to January 1, 2026, with the April 1, 2026 construction-commencement date as the dividing line between old and new rules.
If you operate in construction supply, materials distribution, or serve data center contractors, it's worth reviewing your customer pipeline now to identify which projects fall on either side of the April 1 cutoff. Understanding the tax treatment of each project prevents surprises and keeps your customer relationships on solid ground.
For a detailed, business-specific summary of H0897 and other Idaho tax changes affecting your sector, contact your local trade association or the Idaho Department of Revenue.