Wyoming's New 4% Assessment Cap May Not Survive an Inheritance, and Nobody's Sure Yet

Updated August 2026

Wyoming assesses residential property at 9.5% of fair market value every year, for every owner, with no separate reassessment trigger tied to a change of ownership. What's newer, and genuinely unsettled, is a 4% annual growth cap the legislature added in 2024, layered with several other relief programs that have already been amended twice since. Whether an inherited home keeps that cap is an open question the statute doesn't clearly answer.

Annual Valuation, No Ownership Trigger

Wyo. Stat. Ann. 39-13-103 requires all taxable property to be listed and valued annually as of January 1, at fair market value, in the name of the current owner. Inheriting a home doesn't create a special reassessment event separate from that yearly cycle; every property, inherited or not, is already being revalued to current market value each year.

The 4% Cap, and the Inheritance Question It Doesn't Answer

HB0045, enacted in 2024, added a mechanism capping growth in a residential structure's and its improved land's assessed value at the prior year's capped value plus 4% annually. The cap has a kill switch: it's voided and the property reverts to full current market value if the increase comes from new construction, or if "the owner acquired the property during the prior calendar year." The statute then lists specific transfers that don't count as an acquisition for this purpose: transfers between spouses, transfers under a divorce court order, transfers to a trust for the benefit of the prior owner, and transfers to an entity where the prior owner remains a shareholder or member.

A transfer to a non-spouse heir by inheritance isn't on that exclusion list. Read literally, an heir inheriting the home could trigger loss of the cap the following tax year, unless the Department of Revenue has adopted a rule under the statute's catch-all "relationship of the parties" clause specifically excluding inheritance, which we were not able to confirm one way or the other. Compounding the uncertainty, the State Board of Equalization's own docket shows the 4% cap is currently the subject of active litigation as of 2026. If your inherited home is enrolled in this cap, treat its status as unsettled and confirm directly with your county assessor rather than assuming it either survives or resets.

Inherited a Wyoming home and want to check the value?

Enter the address and see it compared against real comparable sales nearby. Takes 30 seconds.

✓ All 50 states✓ Instant results✓ $49 flat fee

Relief Programs Layered on Top, None of Which Transfer

Wyoming has no general homestead exemption, but it has several targeted programs, most of them new or recently rewritten. The Long-Term Homeowner Exemption, for owners 65 or older who've paid Wyoming residential property tax for 25 years or more, was enacted in 2024 and then substantially amended by a 2026 bill: it's now 50% of fair market value, capped at the first $3,000,000 of FMV, with a March 1 filing deadline, and the original 2027 sunset has been repealed. Its only continuity provision is for a surviving spouse who would not otherwise qualify; every other heir has to independently rack up their own 25 years of Wyoming tax payments, which a first-time inheriting heir simply hasn't done.

A separate general homeowner exemption, 25% of fair market value up to a $1,000,000 cap, requires no age or duration test but does require the claimant to file their own affidavit, plus, starting tax year 2026, occupy the property at least 8 months a year. Nothing in either version carries over from a prior owner. The veterans' exemption, raised to $6,000 of assessed value in 2024, extends only to a qualifying surviving spouse or surviving parents of the veteran, not to other heirs.

If the home you're inheriting was enrolled in the county-optional Property Tax Deferral Program, currently adopted only in Teton County, know that the statute makes the deferred tax immediately due and payable upon "the death of the property owner" or a transfer of the property, whichever comes first. You're not inheriting a continuing deferral; you're inheriting a lien that has to be resolved.

Building a protest as an heir?

A Wyoming-specific evidence packet, comparable sales, cover letter, and filing guide, ready before your county's deadline.

✓ All 50 states✓ Instant results✓ $49 flat fee

No Estate or Inheritance Tax, and Appealing Before Probate Closes

Wyoming's old inheritance tax chapter was repealed decades ago, and its estate tax chapter, while still technically on the books, is written as a pickup tax equal to a federal credit that was eliminated for deaths after 2004, meaning it computes to zero today. Wyoming also has no state income tax of any kind.

Under Wyo. Stat. Ann. 2-7-402, title to a decedent's property passes to heirs or devisees immediately at death, though it remains subject to the personal representative's possession and the court's control during administration. The appeal deadline is 30 days from the mailing of the assessment notice, filed with the county assessor, with the county Board of Equalization as the venue and further appeal available to the State Board of Equalization and then district court. The statute's language covers "any person" contesting an assessment rather than specifically the record owner, which supports a personal representative filing on an open estate's behalf before probate closes.

Frequently Asked Questions

Will my inherited Wyoming home lose its 4% assessment cap?

It's genuinely unclear. The cap resets if "the owner acquired the property during the prior calendar year," and inheritance by a non-spouse heir isn't on the statute's list of exclusions. It's also currently the subject of active litigation before the State Board of Equalization, so confirm directly with your county assessor rather than assuming either outcome.

Does my parent's Long-Term Homeowner Exemption transfer to me?

Only to a qualifying surviving spouse. Every other heir would need their own 25 years of Wyoming residential property tax payments and to be 65 or older, which a newly inheriting heir generally won't have.

What happens if the home I inherit is enrolled in the property tax deferral program?

The deferred tax becomes due and payable immediately upon the property owner's death or a transfer of the property, whichever happens first. Budget for it as a debt of the estate rather than a benefit that continues.

Since Wyoming has no income tax, is there a hidden estate tax on inherited homes?

No. Wyoming's old inheritance tax was repealed decades ago, and its estate tax statute, tied to a federal credit eliminated after 2004, computes to zero for every death since. Wyoming also has no state income tax.

Does the Wyoming county board require probate to be finished before I can appeal?

No, generally not. Title passes to heirs immediately at death under Wyo. Stat. Ann. 2-7-402, subject to administration, and the appeal statute covers "any person" contesting an assessment rather than only the record owner, supporting a personal representative filing on the estate's behalf during probate.