State Tax Residency Determination Guide for Multi-State Tax Planning (2026)
Determine state tax residency: domicile factors, statutory residency tests, multi-state income allocation, and tax planning for relocating taxpayers.
Summary
State residency affects tax liability significantly. This guide explains domicile factors, statutory tests, and planning for multi-state taxpayers.
Key Steps
- 1Establish domicile: intent to remain, physical presence, home purchase, voter registration.
- 2Check statutory residency: 183 days in state triggers statutory residency in many states.
- 3Track multi-state income: allocate income to states based on work location.
- 4Plan relocation timing: mid-year move requires part-year returns for both states.
- 5Avoid dual residency: establish clear domicile change documentation for tax protection.