The move changes the rate; the record decides whether it sticks. Georgia keeps taxing until domicile actually changes, and its 183-day statutory test stays live while any Georgia abode is maintained. Below: what follows leavers, and the Texas steps that build the record.
183 days · any part of a day counts
No test
500 (part-year)
No income tax return
At Georgia's top marginal rate (4.99%), every $100,000 of taxable income is $4,990 of state tax — an illustration at the top bracket, not an effective-rate calculation. Official rate tables are linked below.