Mississippi Code Title 21. Municipalities § 21-41-17

All special assessments levied under the provisions of this chapter, unless otherwise provided by the governing authorities, shall become due and shall be paid to the treasurer of the municipality, (or to the officer performing the duties of such treasurer) in full within ninety (90) days from the date of confirmation thereof. However, the governing authorities of the municipality may by resolution confer upon the property owners who admit the legality of the assessment the privilege of paying the assessment in not exceeding twenty (20) equal installments with interest from the date of the confirmation at the same rate as that fixed in the bonds issued to raise money to pay the cost of the said improvements, which is to be paid in whole or in part by the owners of property abutting to the proposed improvements. Any property owner who shall not have taken an appeal from the assessment, shall, upon failure to pay said assessment in full within ninety (90) days from the date of confirmation, be deemed to have elected to pay said assessment in installments as herein provided, and he shall be deemed to have admitted the legality of the assessment and shall thereby waive all right to contest the validity thereof. The installments of said assessment shall be due and payable at the same time that the annual municipal tax becomes due and payable commencing with the first municipal tax levy, which is payable after the expiration of ninety days from the date of confirmation of the assessment.