Moving from Iowa to Michigan: Residency, Taxes, and What to Prove

In Iowa

Iowa has no statutory carve-out for travel nurses distinct from its general domicile test; the federal tax-home question under IRS Publication 463 governs stipend treatment, and Iowa's domicile-continuity rule then applies independently. Iowa's major hospital systems in Des Moines, Cedar Rapids, and Iowa City draw a steady stream of travel nursing assignments, and this is also the specific fact pattern national travel-nurse forums warn about: nurses who claim a Florida or Texas tax home on paper while actually living in an Iowa rental apartment and rarely visiting the claimed home state have had their tax-home status disallowed, which exposes the tax-free stipends and typically requires filing an Iowa resident return alongside nonresident returns in every other state worked.

In Michigan

Michigan applies its ordinary domicile and 183-day deeming rule to a travel nurse the same as anyone else: a nurse who lives in Michigan at least 183 days in a tax year is statutorily deemed a Michigan domiciliary regardless of a claimed out-of-state tax home. The more frequent exposure runs the other way, where a nurse claims a Florida or Texas tax home while actually renting in Michigan for most of an assignment; Michigan and, where applicable, a Michigan city both tax nonresident wages for days actually worked in the jurisdiction regardless of the claimed tax home.

In Iowa

Iowa has no major professional sports franchise, though the University of Iowa and Iowa State athletic programs generate significant visiting-team and visiting-official travel, and touring concerts and events at Des Moines and Cedar Rapids venues bring nonresident performers into the state regularly. Iowa applies duty-day apportionment to nonresident athletes and entertainers earning income from Iowa events, consistent with how most income-tax states administer the jock tax.

In Michigan

Michigan and the City of Detroit both tax nonresident professional athletes on a duty-day basis. Detroit's jock tax, formally codified in 2017, applies its duty-day apportionment broadly, reaching injured players who travel with the team as well as coaches, trainers, and other team personnel required to travel and perform services, not just players who take the field. This applies to visiting teams playing the Lions, Pistons, Tigers, and Red Wings.

In Iowa

Because Iowa has no day-count statutory residency test, an Iowa snowbird who winters in Florida or Arizona does not face a bright-line day-count trigger the way a New York or Missouri resident with a similar arrangement would; the question is whether Iowa domicile has actually been abandoned and replaced, and Iowa's continuity rule means simply spending part of the year elsewhere does not by itself end Iowa residency. The Homestead Tax Credit is the practical tripwire: it requires the property be the claimant's primary residence, so a snowbird who spends the majority of the year in a warm-weather state should reassess whether continuing to claim it is still accurate.

In Michigan

The Michigan snowbird risk runs directly through the Principal Residence Exemption and the 183-day deeming rule together. Campbell v. Department of Treasury shows that simply acquiring a second home in a state like Arizona, without more, was enough for Treasury to deny the PRE on the Michigan home for the following tax year, and Treasury's three-year lookback on PRE claims means a snowbird's arrangement gets checked retroactively, not just going forward. Separately, spending at least 183 days in Michigan in a year, even a retiree splitting time between an Up North cottage and Florida, statutorily deems that person a Michigan domiciliary for the year.

In Iowa

Iowa has no convenience-of-the-employer rule, so a genuine Iowa resident working remotely for an out-of-state employer is taxed as an Iowa resident regardless of employer location, and a nonresident working remotely for an Iowa employer generally is not pulled into Iowa tax solely because the employer is headquartered there. The Quad Cities (Davenport/Bettendorf, Iowa and Rock Island/Moline, Illinois) and the Omaha-Council Bluffs metro both produce a meaningful population of cross-border remote and hybrid workers whose actual physical work location, not their employer's address, governs Iowa tax exposure.

In Michigan

Michigan has no convenience-of-the-employer rule at the state level. A nonresident who works remotely from another state for a Michigan-based employer is generally not taxed by Michigan on those wages, since the state sources employee compensation to where work is physically performed rather than to the employer's location; the same principle generally applies to Michigan's local city income taxes.

In Iowa

Iowa follows the federal Servicemembers Civil Relief Act and Military Spouses Residency Relief Act. A servicemember whose home of record is Iowa remains an Iowa domiciliary and taxpayer regardless of duty station, and Iowa does not tax a nonresident servicemember's military pay solely because they are stationed in Iowa under orders. A nonmilitary spouse residing in Iowa solely due to military orders can elect the servicemember's state of legal residence under MSRRA for Iowa tax purposes.

In Michigan

Michigan follows the federal Servicemembers Civil Relief Act and Military Spouses Residency Relief Act. A servicemember whose domicile was Michigan before entering service remains a Michigan domiciliary regardless of duty station unless they affirmatively establish a new domicile, while a servicemember stationed in Michigan on orders, and a qualifying spouse, does not become a Michigan resident solely because of the posting.

In Iowa

Federal law (49 U.S.C. §40116) limits any state's ability to tax an air carrier employee's pay to the employee's state of residence and any state where more than 50% of pay is earned. Iowa's airports are not major airline crew bases, so this carve-out is less frequently in play for Iowa specifically, but it still protects any Iowa-domiciled crew member from having their full income pulled into a duty-station state's tax.

In Michigan

Federal law (49 U.S.C. §40116) limits states to taxing airline employee compensation only in the employee's state of residence and any state where more than 50% of pay is earned, protecting flight crew based at Detroit Metro who are domiciled outside Michigan from full-income Michigan taxation based solely on their duty station.