Is SaaS Taxable in Idaho? No, and Neither Are Most Downloads. The Line Is Permanent Use

Key Takeaway: Idaho does not tax SaaS, and unlike most states it does not tax downloaded software either. Idaho Code § 63-3616(b) takes custom programs, "computer software that is delivered electronically," "remotely accessed computer software" and load-and-leave software out of tangible personal property. The exception is digital music, books, videos and games sold with a permanent right of use, which are taxable however they are delivered. For an AI agent business, the question in Idaho is not how the output is delivered. It is whether the buyer keeps it.

The Statute That Decides SaaS

Idaho's sales tax is a tax on tangible personal property and a short list of enumerated transactions. Section 63-3619 imposes the 6% tax on "each sale at retail," and § 63-3612 defines a sale around transfers of tangible personal property, plus a closed list of additions: fabrication, meals, admissions, lodging, leases of tangible property and a few others. There is no general tax on services, and nothing on that list reaches data processing, information services or compute.

Software would be tangible personal property by default. Section 63-3616(b) says the term "includes any computer software except the following: custom computer programs; computer software that is delivered electronically; remotely accessed computer software; and computer software that is delivered by the load and leave method."

Remotely accessed software is defined broadly: "computer software that a user accesses over the internet, over private or public networks, or through wireless media, where the user has only the right to use or access the software by means of a license, lease, subscription, service or other agreement." That covers SaaS, API access and hosted inference, whatever the billing model.

The second exclusion is the one that sets Idaho apart. Most states that exempt SaaS still tax a download, because a downloaded copy looks like the boxed software it replaced. Idaho does not. Software "delivered electronically" is excluded on the same footing as software accessed remotely. An agent product that ships a desktop client, a command-line tool, a local MCP server or an SDK is outside the tax when it is delivered over the network. It becomes taxable only when delivered on physical storage media.

The Tax Commission's rule follows the statute. IDAPA 35.01.02.027.02, as amended effective July 1, 2026, says "the taxability of canned software depends on how it is delivered," and that "a printed key code sold in a box that allows the user to download canned software and activate the canned software using the key code isn't taxable."

The Exception: Permanent Digital Media

Section 63-3616(b) then pulls one category back in:

Notwithstanding the foregoing exclusions of certain types of computer software from the definition of tangible personal property, tangible personal property shall include computer software that constitutes digital music, digital books, digital videos and digital games when the purchaser has a permanent right to use such software and, regardless of the method of delivery or access. If the right to use digital music, digital books, digital videos or digital games is conditioned upon continued payment from the purchaser it is not a permanent right of use.

Two features of that sentence matter for agent sellers.

It turns on permanence, not delivery. A video sold outright and downloaded is taxable. The same video streamed under a subscription is not, because the right is "conditioned upon continued payment." Rule 056.02 says the same for videos: taxable on storage media, and "also taxable if delivered electronically if the buyer has a permanent right of use."

It is a closed list of four. Music, books, videos and games. Other digital output is not on it.

Where Agent Output Lands

Agents increasingly sell outputs rather than access, so the four-item list does most of the work in Idaho. Our reading of each common case:

Generated audio, video and books sold outright. An agent that sells a narrated audiobook, a generated music track or a rendered video, where the buyer keeps the file, is selling something that fits "digital music," "digital books" or "digital videos" with a permanent right of use. We treat it as taxable. The statute does not say whether machine-generated media counts. It defines the category by what the product is, not by who or what made it, and we would not assume an exclusion the text does not contain.

The same media on a subscription. Access that ends when the payments stop is not a permanent right of use, on the statute's own words. A generation platform billed monthly, where the buyer's access to the library depends on staying subscribed, is outside the tax. Where a subscription also lets the buyer download and keep files, the answer is less clean. The statute does not address hybrids, and we would treat the files kept as permanent.

Generated images. Images are not on the list. Rule 056.01.c says digital photographs "aren't tangible personal property when delivered electronically or by cloud storage and aren't taxable." Non-photographic generated art is not music, a book, a video or a game. On both readings, an image delivered electronically is not taxable in Idaho.

Reports, datasets and documents. The statute's definition of computer software includes "information stored in an electronic medium" (§ 63-3616(b)(i)). Rule 027.04 makes computer-compiled reports taxable when "printed or delivered in an electronic format on storage media," and not when delivered electronically. A research agent that emails a PDF report, or a data agent that delivers a dataset by download or API, is outside the tax on that text. A printable planner or template delivered as a PDF is in the same position.

Storage. Rule 027.05: "Charges to store data on storage media owned and controlled by another party is a nontaxable service." Vector stores and hosted memory sit here.

Two Smaller Rules Worth Knowing

Custom work must be separately stated. Under § 63-3616(b)(ii), modifying a prewritten program is custom programming "only to the extent of the modification, and only to the extent that the actual amount charged for the modification is separately stated." In Idaho this mostly matters for software shipped on physical media, since electronically delivered software is excluded anyway.

Maintenance follows the delivery medium. Rule 027.03 taxes maintenance contracts only to the extent they deliver upgrades on storage media. A contract that delivers updates electronically is not taxable unless the customer actually receives updates on storage media (Rule 027.03.c).

How AgentTax Handles Idaho

Verified against the engine today (buyer, B2B, $1,000, Boise 83702, 6%):

• Hosted software, services and licenses compute $0. saas, compute, api_access, ai_model_access, data_processing, storage, cloud_infrastructure, consulting, ai_labor, service, subscription, marketplace_fee and license all return $0.

• Generic downloads compute 6%. digital_good returns $60 with a DIGITAL_CONTENT_TYPE_MAY_REDUCE advisory. ebook, audio and video return $60, which is right for a permanent right of use.

• Images compute $0. digital_good with digital_content_type of art_image or photograph returns $0 with a DIGITAL_CONTENT_TYPE_DECLARED advisory, matching Rule 056.01.c.

The gaps, all on the conservative side:

• Data and documents over-collect. data_purchase returns $60, and so do digital_good with printable_document, data or software. On the statute and Rule 027.04 as read above, electronically delivered data, reports, printables and software are not taxable. A downloaded software product sent as license returns $0, which is the better call. We have logged the rest for review. Taxability changes go through an approval, so the engine is unchanged today.

• The engine cannot see permanence. It does not know whether a buyer keeps a media file or loses it when the subscription ends. Send rented or streamed media as subscription ($0) and media the buyer keeps as digital_good with the matching type.

• No Idaho ZIPs in the rate table. Every Idaho ZIP returns a ZIP_UNKNOWN advisory and the 6% state rate. For remote sellers that is the right number: § 63-3611(3)(h) says a remote retailer collecting under the economic nexus rule "shall not collect or remit any local sales tax."

For sellers, § 63-3611(3)(h) applies to any retailer without a physical presence that has "cumulative gross receipts from sales delivered into Idaho in excess of one hundred thousand dollars ($100,000)" in the previous or current calendar year. There is no transaction count. The statute counts all sales delivered into Idaho, not only taxable ones, so an agent business with mostly exempt Idaho revenue can still cross it. See economic nexus for AI agents. To run the numbers, use the playground or the AI agent sales tax API. For other states, see the 50-state SaaS guide.

What to Watch

Two things. The first is whether the Tax Commission says anything about machine-generated music, books and video. The July 2026 rule amendments did not address it, and the statute's four categories are broad enough to reach generated media without any change. The second is hybrid products that combine subscription access with downloads the buyer keeps. The permanent-use test was written for a store that sold or rented a title. Agent platforms that do both on one invoice will need an answer.

This analysis is for informational purposes only and does not constitute legal or tax advice. This post reflects AgentTax's current interpretation of evolving law. Consult a licensed tax professional for compliance decisions.