Mississippi Code Title 37. Education § 37-155-113

(1) All property and income of the MACS Trust Fund, as an instrumentality of the state, is exempt from all taxation by the state and by its political subdivisions.

(2) Any contributor or payor to a MACS Program account may deduct from their Mississippi taxable income any contributions or payments to an account or accounts in the MACS Trust Fund up to a maximum annual amount of Twenty Thousand Dollars ($20,000.00) for joint filers and Ten Thousand Dollars ($10,000.00) for single and other filers. Contributions or payments for such tax years may be made after such calendar years but before the deadline for making contributions to an individual retirement account under federal law for such years. The earnings portion of any withdrawals from an account that are not qualified withdrawals, as well as any amounts included in such nonqualified withdrawals previously deducted from taxable income under this section, shall be included in the gross income of the resident recipient of the withdrawal for purposes of the Mississippi Income Tax Law in the year of such withdrawal.