Thanks for your question.
My answer assumes your primary residence is in NC and you want to switch to Florida.
NC will assume you have only temporarily left the state as long as you do not break residency sufficiently to definitively show an intention of having residency in Florida.
Residency for tax purposes is determined by where you have your main home and where you spend the majority of your time as well as:
1. owning real estate (a home)
2. where you have your car registered
3. where you get your mail
4. where you have bank accounts
5 where your wife and children are
6 where you are registered to vote.
So to make no issues or have little resistance with breaking residence, you
1. buy a home in FL
2. register your car in FL
3. get a FL drivers license
4. get Car insurance indicating the car is garaged in FL
5. set up bank accounts in FL
6. register to vote in FL
7. change your mailing address to a FL address.
Spend less time in NC than you do in FL AND
during the year you break residence you will be considered a part year resident of NC.
If you continue to have NC sourced income, NC will have a claim for taxes against that income.