Kentucky Residency

If you're not domiciled in Kentucky, you become a statutory resident only if you both maintain a place of abode in Kentucky and spend more than 183 aggregate days in the state during the tax year, under KRS 141.010. Both conditions have to be true together: days alone, without an abode, don't trigger statutory residency, and an abode alone, without exceeding 183 days, doesn't either.

No, and this is a Kentucky-specific trap. Under 103 KAR 17:010, Section 2, if you move out of Kentucky and return within six months, the state treats the original move as never having been intended to be permanent, and you're considered a resident, or part-year resident, for the entire period your abode was elsewhere. There's no exception listed for a job that fell through or a family emergency; the six-month rule applies regardless of the reason for returning.

103 KAR 17:010 requires three things together: intent to change your domicile, actual physical removal from Kentucky, and establishment of a new abode elsewhere. A domicile once established continues until all three are met; simply leaving for a defined period, like a work assignment with a planned end date, or for an incidental purpose doesn't change it. Kentucky's regulation is notably shorter and less factor-heavy than states like New York, but the three-part test is still a real bar to clear.

Yes, generally. Under 103 KAR 17:010, Section 6, which applies the federal servicemembers' relief protections, you retain the domicile you had when you entered the service. If that domicile was Kentucky, you remain liable for Kentucky income tax on all your income regardless of where you're stationed, unless you affirmatively change domicile and can show conclusive evidence the Kentucky domicile has been abandoned and a new one established elsewhere.

Generally no, on wages. Kentucky has reciprocal agreements with Illinois, Indiana, Michigan, Ohio, Virginia, West Virginia, and Wisconsin, so wages and salaries earned in one of those states by a Kentucky resident are exempt from that state's income tax, and the reverse holds for residents of those states working in Kentucky. The Virginia agreement is narrower: it only applies to taxpayers who commute daily to work in the nonresident state. You need to file the right exemption certificate with your employer, such as Kentucky's Form K-4, to actually stop withholding.

Kentucky presumes yes, if Kentucky was your domicile immediately before you moved to the foreign country. Section 4 of 103 KAR 17:010 creates a presumption of continued Kentucky residency for nonresident citizens in this situation. You can overcome it, but you need to present sufficient evidence that you genuinely abandoned Kentucky domicile, not just that you now live and file federally as if abroad.

It depends entirely on who inherits, not how much. Kentucky has no estate tax, but it does have an inheritance tax under KRS Chapter 140. Spouses, children, parents, and grandchildren (Class A), and as of a 2026 law change siblings, nieces, nephews, aunts, and uncles (Class B), are fully exempt. More distant relatives, friends, or unrelated beneficiaries (Class C) get only a $500 exemption before rates from 6% to 16% apply, and the return is due within 18 months of death.

Kentucky fully exempts Social Security benefits, and separately excludes the first $31,110 per person of other retirement income, including pensions, 401(k), and IRA distributions, with no age requirement attached. Amounts above that per-person threshold are taxed at Kentucky's flat rate, which is scheduled at 3.5% for 2026. Watch for legislative changes to the exclusion amount, since lawmakers have proposed raising it in recent sessions.

Kentucky gives you 30 days to get a Kentucky driver's license, but only 10 days to title and register a vehicle you're keeping in the state, a shorter window than most neighboring states use for registration. Missing the license deadline makes an out-of-state license invalid for driving in Kentucky and can result in citations.

No published figures exist. Kentucky doesn't generate the volume of reported residency case law or firm-published cost guidance that New York or California do, which itself suggests fewer contested residency audits. Given Kentucky's flat 3.5% rate, the dollar exposure that would justify a drawn-out, expensive defense is typically lower than in high-rate states, but no firm has published a specific range.

Yes, if you're domiciled in Kentucky. Section 5 of 103 KAR 17:010 specifically addresses federal employees: working outside Kentucky doesn't change your tax residency if your domicile remains Kentucky, and once domiciled in Kentucky you're treated as a resident until a new domicile is actually established outside the state under the same intent-removal-new abode test that applies to everyone else.