Moving states changes more than the weather

States differ on whether they tax income at all, whether they tax retirement income and Social Security specifically, and at what rates.

The full picture is broader than income tax: property tax, sales tax, insurance costs, and whether the state imposes its own estate or inheritance tax — which several do at thresholds well below the federal level.

Establishing residency is a factual test, not a preference. Days present, driver's licence, voter registration, where advisers and physicians are located, and where the home considered primary sits all contribute. States with income taxes do audit this.

Estate documents are executed under the law of a particular state. A move is a standard trigger for having them reviewed where you now live.