Which form must be used to designate a member's legal residence for tax purposes?

The correct form used to designate a member's legal residence for tax purposes is the DD Form 2058. This form is specifically designed for service members to declare their legal residence for tax purposes, which can significantly influence how their income is taxed, especially when considering state income taxes.

DD Form 2058 is often used to establish a service member's home of record or legal residence, enabling the appropriate taxation based on that residency status. This is particularly important for military personnel, as their residency can affect the tax benefits and obligations they might have while stationed in different locations.

In contrast, other forms like DD Form 214 are primarily used for discharge purposes, W-2 forms report wage and tax information for employees and are not meant for declaring residency, and SF-50 is utilized for personnel actions rather than for residency designation. Each of these forms serves distinct purposes that do not pertain to the legal residency declaration for tax situations.