Real Estate Tax Planning

Residency Change & Domicile Planning: Moving Is an Event; Changing Tax Residency Is a Factual Process

State residency tests differ. Practitioners should identify every state that could assert residency, apply that state’s test, document the move, and separately analyze income that remains sourced to the former state.

Moving is an event; changing tax residency is a factual process. A taxpayer can establish a new home while the former state continues to assert domicile or statutory residency under its own test.

The first residency question is not “Where does the taxpayer say they live?” It is “Which states could claim residency, and what exact test does each use?”

Start with each state’s legal test

Domicile, statutory residence and part-year residence are defined by state law. Determine which states could plausibly claim the taxpayer and analyze each test independently.

Domicile is shown by conduct

Home ownership, family location, business ties, licenses, registrations, voting, professional relationships, community involvement, personal property and time spent in each state can all be evidence. No single “checklist item” universally changes domicile.

Day counts can create a separate residency rule

States such as New York use statutory-residency concepts in addition to domicile. A taxpayer who changed domicile may still be taxed as a resident if another statutory test is met.

Income source survives the move

Changing residence does not convert source income into non-source income. Business income, real estate gain, deferred compensation and other items may remain taxable to the former state.

Build the file during the move year

Preserve closing statements, leases, travel calendars, license changes, voter registration, business records and other contemporaneous evidence. Residency audits are factual, and records become harder to reconstruct over time.

Planning takeaway

Moving is not the same as proving a residency change.

Apply the exact legal tests for every potentially interested state, document the facts contemporaneously and separately analyze source income after the move.

Authorities & references

Primary authority to review

  • Applicable state domicile and statutory-residency law
  • State audit guidance and regulations
  • Federal/state sourcing rules for the taxpayer’s income items

Evergreen article · Verify current-year indexed amounts and current jurisdiction-specific rules · Last reviewed September 2026