Domus DayState tax residency guides2026 Edition · Every rule sourced
Arrival guide

Moving to Colorado

Residency, establishment, and the first-year record (2026)

2026.1 Edition · Revised 2026-07-25 · DomusDay Research

Arriving in Colorado is the easy half of a move, and the half that leaves the clearest paper trail. Colorado taxes residents at up to 4.4%, so the date residency begins is a number on a return.

The state you left decides whether the move counts, and it decides on evidence. Every step below produces a document with a date on it — which is what answers that question years later.

Section ALegend

Colorado at a glance

  1. 1.A single flat rate on Colorado taxable income — 4.40% since tax year 2022. TABOR surplus years can lower it temporarily: the 2024 rate was 4.25%, and 2019 was 4.50%; the 2025 and 2026 rates are 4.40%.
  2. 2.each one produces a dated document
  3. 3.Senior exemption: application to the county assessor by July 15 of the year requested
  4. 4.Part-Year Resident/Nonresident Tax Calculation Schedule
Section BOn arrival

What Colorado does differently for new residents

  • A flat 4.40% income tax that TABOR sometimes lowers — 4.25% for 2024 — with surplus refunds otherwise claimed on the resident return as a sales tax refund
  • No declaration-of-domicile instrument; the creditor homestead exemption ($250,000, or $350,000 elderly/disabled) applies automatically with no recording
  • No general property-tax homestead exemption — the senior exemption (50% of the first $200,000 of value) requires age 65 and 10 consecutive years of owner-occupancy
  • In-person voter registration is open through Election Day at voter service and polling centers
  • A 30-day window for the driver's license but 90 days for vehicle registration
  • No estate or inheritance tax — the estate tax has been effectively eliminated for deaths after December 31, 2004
Section CThe first weeks

Establishing residency in Colorado

Grouped the way an examiner reads a life. Each item pairs the act with the evidence it generates — do them early and the record starts on your side of the timeline.

Government registrations(3)
  • The DMV's new-resident guidance sets a 30-day window to transfer an out-of-state driver's license; DMV residency begins with owning or operating a Colorado business, Colorado employment, or 90 consecutive days of residence.

    Source
    Within 30 days of becoming a residentFiles: Dated Colorado license
  • The DMV's new-resident guidance sets a 90-day window to register vehicles in Colorado.

    Source
    Within 90 days of becoming a residentFiles: Colorado title and registration records
  • Colorado voter registration runs online through the 8th day before an election and in person at a voter service and polling center through Election Day itself; residence means the principal or primary home.

    Source
    Files: Colorado voter registration record
Home & property(2)
  • Colorado has no general property-tax homestead exemption. The senior exemption removes 50% of the first $200,000 of actual value for owner-occupants 65 or older who have owned and occupied the home as the primary residence for at least 10 consecutive years — applications go to the county assessor by July 15.

    Source
    Application by July 15 of the year requested, once qualifiedFiles: Approved exemption on the county tax roll
  • The creditor homestead exemption (C.R.S. §38-41-201, raised by SB22-086 in 2022) exempts $250,000 of home value — $350,000 for elderly or disabled owners — from seizure to satisfy a debt, contract, or civil obligation, with no recording or declaration required.

    Source
    Files: None — the exemption applies automatically
Financial(1)
  • Colorado requires liability coverage of $25,000 per person for bodily injury, $50,000 per accident, and $15,000 for property damage to another as the minimum to drive.

    Source
    Files: Colorado policy declarations page
Social & civic(1)
  • The residency of the spouse and dependents is among the domicile evidence the Department weighs — household relocation into Colorado is dated evidence on the arrival side.

    Source
    Files: Household and school records with Colorado addresses
Filing(3)
  • The six-month + abode resident definition runs on the arrival side too: aggregate time in Colorado with a permanent place of abode dates when Colorado residency began.

    Source
    Files: Calendars and travel records for the arrival year
  • Form DR 0104PN, filed with the DR 0104, covers the arrival year — tax is prorated so it falls only on income received while a Colorado resident or from Colorado sources.

    Source
    The tax year of the moveFiles: Filed DR 0104 with DR 0104PN showing the residency period
  • In TABOR surplus years the state refunds revenue to taxpayers — in recent years as a sales tax refund claimed on the income tax return or as a temporary income tax rate reduction, as in 2024.

    Source
    Files: Refund claimed on the filed Colorado return
Section DRecorded acts

Instruments and deadlines

Deadline

Homestead exemption

Due
Senior exemption: application to the county assessor by July 15 of the year requested
No general property-tax homestead exemption exists. The senior exemption removes 50% of the first $200,000 of actual value of the primary residence for applicants 65 or older on January 1 who have owned and occupied the home for at least 10 consecutive years. Separately, the creditor homestead (C.R.S. §38-41-201) exempts $250,000 — $350,000 for elderly or disabled owners — from seizure for debts, automatically and without recording.
Source
Section EPrimary sources

Official Colorado sources

Section GGetting here

Routes into Colorado

2026.1 Edition · Revised 2026-07-25 · DomusDay Research