The school boards of all school districts shall have the following powers, authority and duties in addition to all others imposed or granted by law, to wit:
The school board may make such written agreement to withhold and transfer funds irrevocable for the term of the written obligation and may include in the written agreement any other terms and provisions acceptable to the school board. If the school board files a copy of such written agreement with the Department of Revenue, or any state agency, department or commission created under state law then the Department of Revenue or any state agency, department or commission created under state law shall immediately make the withholdings provided in such agreement from the amounts due the local school board and shall continue to pay the same over to such financial institution, trustee or obligee for the term of the agreement.
This paragraph (tt) shall not grant any extra authority to a school board to issue debt in any amount exceeding statutory limitations on assessed value of taxable property within such school district or the statutory limitations on debt maturities, and shall not grant any extra authority to impose, levy or collect a tax which is not otherwise expressly provided for, and shall not be construed to apply to sixteenth section public school trust land;
Miss. Code § 37-7-301