Is military retirement pay taxed in Sullivan's Island?

Whether military retirement pay is taxed is a state income tax question, separate from property tax, and it depends on current South Carolina income tax law rather than anything specific to Sullivan's Island. Income tax rules change over time, so a military retiree should confirm the current treatment with a CPA rather than rely on a general answer. Property taxes on a Sullivan's Island home follow the same assessed-value and millage mechanism as anywhere else in Charleston County, regardless of income sources. Brian Beatty can point a military retiree to a CPA who can confirm the current rules.