Tax residency rules, audits, and the severance record (2026)
2026.1 Edition · Revised 2026-07-25 · DomusDay Research
Moving out of Utah is easy. Stopping Utah taxes is a different act, and it happens on paper: Utah keeps treating you as a resident until the record shows otherwise.
On the burden of showing otherwise: Test 1 is not a weighing exercise — a single qualifying fact establishes domicile. Test 2 weighs circumstances, among them a Utah driver license, a residential exemption received for a primary residence, voter registration, property ownership, and a Utah abode combined with 183 or more days in the state.
Two tests decide it. Cross 183 days with a Utah abode still available and you are taxed as a resident regardless of where you claim to live — and see day-counting rules. Or keep the day count clean but leave the life-pattern evidence pointing at Utah, and domicile does the same work. Everything on this page exists to answer one question: if Tax Commission asks, does your record hold?
A federal child tax credit claimed for a dependent enrolled in a Utah public K-12 school. Enrollment as a resident student in a Utah state institution of higher education. Voting in Utah while neither registered nor voting in another state. Any one establishes Utah domicile for the year under the Tax Commission's first test.
Source ↗Utah's primary residential exemption removes 45% of a residence's fair market value from the property tax base, claimed by declaration with the county assessor. Receiving it for a primary residence is one of the circumstances Utah weighs in deciding whether the permanent home is in the state.
Source ↗A Utah resident is a person domiciled in Utah for any period during the tax year — but only for the duration of that period. Income received during residency is taxable wherever earned; Utah-source income is taxable for the rest. Schedule TC-40B carries the dates.
Source ↗Utah applies a single 4.5% rate from January 1, 2025, with no brackets. Capital gains sit in the same base at the same rate, and nonresidents apportion Utah-source income on Schedule TC-40B rather than facing a separate schedule.
Source ↗This is the test with a number in it, and the number is what an auditor can verify line by line. Keep any Utah dwelling suitable for year-round use and spend more than 183 days in the state, and Utah taxes all of your income — domicile arguments never enter into it. See day-counting rules: a morning meeting, a connection through the city with a dinner on the ground, a single evening — each is a full day against the threshold.
A resident is a person domiciled in Utah for any period during the tax year, but only for the duration of that period — so residency can start and stop mid-year, and the return follows the dates.
A place of abode in Utah. Maintaining one and spending 183 or more days of the tax year in Utah is among the circumstances that establish a permanent home here under the Tax Commission's second domicile test. The 183-day figure sits inside the domicile analysis rather than beside it: Utah defines a resident as a person domiciled in Utah for any period during the year, and the abode-plus-183-days combination is one of the facts that shows the permanent home is here.
Selling the apartment is not the test, and neither is the new driver's license. Utah presumes an established domicile continues until it is shown to have changed — two tests. Test 1 establishes Utah domicile outright where the taxpayer or spouse claimed a federal child tax credit for a dependent enrolled in a Utah public K-12 school, is enrolled as a resident student in a Utah state institution of higher education, or voted in Utah during the tax year while neither registered to vote nor voting in another state. Where Test 1 does not apply, Test 2 asks whether there is a permanent home in Utah, voluntarily settled in not for a special or temporary purpose but with the intent of making a permanent home. On the burden: Test 1 is not a weighing exercise — a single qualifying fact establishes domicile. Test 2 weighs circumstances, among them a Utah driver license, a residential exemption received for a primary residence, voter registration, property ownership, and a Utah abode combined with 183 or more days in the state. Examiners weigh 6 primary factors — a dependent in a utah public k-12 school with a claimed child tax credit, enrollment as a resident student in a utah state institution of higher education, voting in utah while neither registered nor voting elsewhere, a residential exemption received for a primary residence, a utah driver license, a utah abode plus 183 or more days in the state — and they weigh what you did, not what you intended. The pattern of an actual life somewhere else is the evidence; everything else is secondary.
A clean exit does not end every Utah claim. These rules keep taxing specific situations after the move — each one is a way the state stays in your return.
AffectsMovers who leave a child in a Utah public school, a student in a Utah state university, or who cast a Utah ballot in the year of the move.
AffectsAnyone leaving Utah while a Utah property continues to carry the primary residential exemption.
AffectsLeavers who keep Utah workdays, Utah rental or business property, or a Utah business interest.
Utah State Tax Commission (Tax Commission) runs a moderate-intensity residency program. The Tax Commission publishes no residency audit statistics, but it publishes an unusually specific two-test domicile framework — including three facts that establish domicile outright — and issues written decisions applying it. An examination is not an argument about intentions — it is a request for documents, and the request looks like this:
Every item on that list either exists in your records from the year of the move, or it does not. That is the whole game — and why the severance record below is the section that matters most.
An audit years from now is answered with documents generated in the months around the move. This is that inventory — grouped the way examiners think about a life, each item paired with the evidence it leaves behind.
Utah's first domicile test is the one to read first, because it does not weigh anything: a child tax credit claimed for a dependent in a Utah public K-12 school, enrollment as a resident student in a Utah state institution of higher education, or voting in Utah while neither registered nor voting elsewhere each establishes Utah domicile for the year. Where none applies, the permanent-home test weighs the Utah driver license, the residential exemption, voter registration, property ownership, and the abode-plus-183-days count. The change year is filed on Schedule TC-40B with the residency start and end dates written on the form.
Voting in Utah during the tax year while neither registered nor voting in another state establishes domicile outright; registering and voting in the new state addresses that test directly.
Source ↗A Utah driver license is one of the circumstances weighed under the permanent-home test; the new state's license, obtained and dated, is the counterweight.
Source ↗Utah gives new residents 60 days to transfer titles and registrations, and the same transfer runs in reverse on departure — registering vehicles in the destination state produces dated records there.
Source ↗The primary residential exemption is claimed by a signed residential property declaration filed with the county assessor; where a Utah property stops being a primary residence, the declaration and the county record are what change.
Source ↗What happened to the Utah home is weighed under the permanent-home test alongside property ownership generally — sold, leased, or retained and available.
Source ↗The second test asks whether a permanent home has been voluntarily settled in with the intent of making it permanent — so the destination state's deed or lease, and the life built around it, carry that element.
Source ↗Banking and advisory relationships moved to the new state corroborate the voluntary settling required by the permanent-home test.
Where work is performed determines what remains Utah-source during the nonresidency period on Schedule TC-40B.
Source ↗Physicians, dentists, and advisers engaged in the new state generate dated, located records on the departure side of the permanent-home pattern.
A child tax credit claimed for a dependent enrolled in a Utah public K-12 school establishes Utah domicile outright under the first test, so where dependents are enrolled after the move is a decisive dated fact.
Source ↗Where household goods and vehicles went corroborates that the settling in the new state was not for a special or temporary purpose.
Maintaining a Utah abode while spending 183 or more days of the tax year in Utah counts toward the permanent home being here, so the departure-year calendar is measured against that line.
Source ↗The change year is filed with Schedule TC-40B, which asks for the date Utah residency was established and the date it ended in mm/dd/yy form — the residency dates are entered on the schedule itself.
Source ↗Employer withholding updated to the new state at the move date lines the payroll record up with the residency dates entered on TC-40B.
Every rule on this page traces to one of these. When a blog and a statute disagree, the statute wins — start here.
How these are chosen, what the automated gates catch, and what this site deliberately does not do: how these guides are made →
The year of the move is filed on TC-40B, with income split between the resident and nonresident periods — and that return is itself evidence: it states your change date on a signed document. Utah applies one rate to all income levels, so withholding follows the residency dates entered on TC-40B rather than a separate nonresident rate schedule.
Three, under the Tax Commission's first domicile test: claiming a federal child tax credit for a dependent enrolled in a Utah public K-12 school, being enrolled as a resident student in a Utah state institution of higher education, or voting in Utah during the tax year while neither registered to vote nor voting in another state. Each establishes Utah domicile on its own, with no weighing of other circumstances.
Utah does not run a standalone day test. Maintaining a place of abode in Utah and spending 183 or more days of the tax year here is one of the circumstances weighed under the second domicile test — the permanent-home analysis — alongside a Utah driver license, the residential exemption, voter registration, and property ownership.
It is one of the weighed circumstances. The primary residential exemption removes 45% of a residence's fair market value from the property tax base and is claimed by declaration with the county assessor; receiving it for a primary residence counts toward the permanent home being in Utah.
Form TC-40 with Schedule TC-40B, on which the date Utah residency was established and the date it ended are entered directly. Income received during the residency period is taxable in Utah wherever earned; Utah-source income is taxable for the nonresidency period.
A single 4.5% rate for all income levels from January 1, 2025, with no brackets. Capital gains are taxed at the same rate through the federal starting point.
Titles and registrations transfer within 60 days, with a VIN inspection on first Utah registration. Voter registration requires 30 days of Utah residency and closes 11 calendar days before an election, with in-person registration still available on election day. The residential property declaration goes to the county assessor within 90 days of notice.
2026.1 Edition · Revised 2026-07-25 · DomusDay Research