The deadline, and the annual re-filing

The application window runs from October 1 to March 1, and the county assessor is where it is filed. County assessors restating the Department of Revenue standard put the recurrence in capitals: “YOU MUST APPLY EVERY YEAR.”³

Governor Gordon signed emergency rules to administer the exemption on February 4, 2026, three and a half weeks before that year’s deadline, and said at the time: “This relief is available now, and I urge eligible property owners to take advantage before March 1.” Department of Revenue Director Bret Fanning put the numbers on the table: roughly 137,000 Wyoming residential owners qualify, and 40,100 had applied as of February 4, with the portal having opened the previous October.⁴

That is close to 97,000 eligible owners who had not filed with under a month to run. Two emergency versions of Chapter 14 ran in succession — one effective February 4, 2026 and a second effective June 2, 2026 — before a permanent Chapter 14 took effect on August 26, 2026 (reference number 011.0006.14.08262026). The permanent rule makes the annual character explicit: Section 26(c) requires “submitting a yearly claim to the Department using an internet-based site,” Section 26(c)(i) sets the window “between October 1 of the previous tax year and March 1 of the current tax year,” and Section 26(c)(ii) states that “Persons submitting verifications after March 1 shall not be eligible for the exemption in this section.” A new Section 26(d) lets an owner who bought mid-year combine months lived in a previous qualifying property with months in the new one.⁵

Why the eight-month test is the Wyoming story

Before tax year 2026 the exemption attached to a qualifying structure. Now it attaches to a structure where the claimant “actually resides for not less than eight (8) months of the year.” In most of Wyoming that changes nothing. In the places with the most condominium and townhouse stock — Teton County, Jackson, Teton Village, Star Valley, the Cody and Sheridan second-home markets — it draws a line straight through a community’s ownership roll.

Within a single building, some owners will meet the residency test and some will not, on identical units. That is a difference in an individual owner’s tax bill, not in anything the association does: an association levies assessments under its declaration and the exemption has no bearing on that. What changes is the carrying cost behind each owner’s ability to pay, and it now varies by occupancy within the same project.

Common area: statute and rule are both silent

The exemption is worded to reach “a single family residential structure and the associated improved land.” The Department of Revenue’s permanent Chapter 14 rule does not define either phrase — Section 26(a) defers entirely to the statute: “Portions of a single family residential structure and associated improved land are exempt under W.S. 39-11-105(a)(xlvi). The amount of exemption and limits shall be the amount found in W.S. 39-11-105(a)(xlvi)(A).”⁵

Neither the statute nor the 24-page rule contains any provision addressing property held in common by a homeowners association, common areas, separately assessed common-area parcels, or condominium common elements. That is silence, not a negative rule, and this column does not convert it into one by inference. An association with a separately assessed common-area parcel has a question for the Department of Revenue’s Property Tax Division, not an answer from the published materials.

Two nearby passages in the same rule use words that a keyword search will surface and that do not bear on associations. Section 22(b), which governs partial exemptions for exempt-entity property generally, provides that “[a] partial exemption may not be granted based upon percentage use of shared or common space or facilities.” Section 16 covers 501(c)(3) property used to serve people with disabilities, mental illness, substance abuse problems or family violence problems. Neither reaches an association holding common areas for unit owners.

Two other exemptions in the same section

• The long-term homeowner exemption, W.S. § 39-11-105(a)(xlv) — 50% of fair market value for an owner or spouse aged 65 or over who has paid Wyoming residential property tax for 25 years or more, capped at the first $3,000,000, amended in 2026 by HB0045, chapter 83. An owner who claims it cannot also claim the 25% exemption on the same property in the same tax year.
• A 50% exemption by citizen initiative, on the November 2026 ballot. What that would do to the 25% exemption is not settled in statute: HB0147 (2026), which addressed exactly that, passed the House 56–5 and then died on the Senate’s general file on March 3, 2026.

The constitutional backdrop

All of this rests on Amendment A, approved by Wyoming voters in November 2024, which made residential real property a separate constitutional tax class with an owner-occupied subclass. The 25% exemption was the Legislature’s first use of that new class. The 4% growth cap that predates it is currently the subject of litigation between the Governor and the State Board of Equalization in Laramie County District Court.