Residency rules, sticky taxes, and first-year steps (2026)
2026.1 Edition · Revised 2026-07-25 · DomusDay Research
The move changes the rate; the record decides whether it sticks. Missouri keeps taxing until domicile actually changes, and its 183-day statutory test stays live while any Missouri abode is maintained. Below: what follows leavers, and the Texas steps that build the record.
At Missouri's top marginal rate (4.7%), every $100,000 of taxable income is $4,700 of state tax — an illustration at the top bracket, not an effective-rate calculation. Official rate tables are linked below.
Texas voters amended the constitution in 2019: the legislature may not impose a tax on the net incomes of individuals. Reversing it would take another statewide constitutional vote, not just a legislature.
Source ↗Unlike Florida or Nevada, Texas has no statutory declaration-of-domicile instrument. The Texas record is built from dated acts — the license, vehicle and voter registrations, the homestead application, and where life actually happens.
Source ↗After a November 2025 constitutional vote, school districts exempt $140,000 of homestead value. Applications go to the county appraisal district by April 30 — a dated, recorded tie to the new state.
Source ↗Texas is the easy half. Missouri decides whether the move counts, and it decides on evidence — the two tests below stay live until the record closes them out.
The full rules, the audit program, and every source: the complete Leaving Missouri guide →
The headline delta: Missouri taxes its top bracket at 4.7% while Texas has no personal income tax. At the top marginal rate — an illustration, not an effective-rate calculation — every $100,000 of taxable income is $4,700 of state tax that stops accruing once Missouri residency actually ends. The rules above decide when that is; the day count and the domicile record decide whether it holds up.
The first weeks in Texas matter more than they look: each step below produces a dated document, and dated documents are what answer a Missouri examiner years later. Do them early and the record starts on your side of the timeline.
New residents obtain a Texas driver license within the 90-day grace period; the skills exam is generally waived for a valid out-of-state license.
Source ↗Vehicles are titled in Texas within 30 days of the move.
Source ↗Vehicles are registered within 30 days. Since January 1, 2025, non-commercial vehicles need no safety inspection — a replacement fee is collected at registration instead; emissions testing continues in 17 counties.
Source ↗Voter registration is filed in the county of residence; the registration deadline is the 30th day before an election.
Source ↗The residence homestead exemption removes $140,000 of value from school taxes for an owner occupying the home as their principal residence; applications go to the county appraisal district by April 30, with late filing accepted up to two years.
Source ↗The Texas Constitution exempts the homestead from forced sale for most debts — an automatic feature of Texas homestead status, with exceptions for purchase-money, taxes, and certain liens.
Source ↗Texas registration requires 30/60/25 liability coverage — $30,000 per injured person, $60,000 per accident, $25,000 property damage.
Source ↗Texas has no personal income tax return to file; sole proprietorships are also exempt from the state franchise tax.
Source ↗Everything Texas asks of a new resident, on its own plate: the Moving to Texas guide →
Every rule on this page traces to a statute, regulation, or agency publication, listed in full on each state's own plate.
Thirty, in the aggregate, and only if the other two conditions hold. Section 143.101 treats a Missouri domiciliary as a resident unless no permanent place of abode is kept in Missouri, a permanent place of abode is kept elsewhere, and no more than 30 days of the taxable year are spent in the state. The 183-day figure is the separate arrival-side test for someone who is not domiciled here.
A permanent place of abode maintained in Missouri fails the first element of the departure exception, and the exception is conjunctive — so resident status stays in place on the department's reading of §143.101 whatever the day count. What the record shows about the home, and when, carries the analysis.
It does not, for individuals, from tax year 2025 forward: 100% of capital gains reported for federal income tax purposes is subtracted from federal adjusted gross income on Form MO-A. The subtraction covers short-term and long-term gains. The residency date decides which realizations fall inside it.
Form MO-1040 with Form MO-NRI, which states the residency dates and computes the Missouri income percentage. A part-year resident is treated as a nonresident but may compute tax as if a resident for the whole year, and may use Form MO-CR instead — one individual cannot claim both.
2026.1 Edition · Revised 2026-07-25 · DomusDay Research