About StateClock

Living in two US states: how each state counts days for residency, what a residency audit asks for, the yearly rhythm of moving between two homes, and tools for keeping a day log. Information with official sources, never tax advice.

How the guides are written

• Checked. Every fact is checked against its original source before a guide goes up.
• Dated. Every guide shows when it was published and last updated. Prices and fees say when they were checked.
• Fair. Comparisons are built from published specs and say what each option does well. We don't claim to have tested what we haven't.
• No invented numbers. Estimates are labeled as estimates, and opinions are ours.