Mo. Rev. Stat. § 67.1531

67.1531. Real property or business license tax, how imposed, ballot. — 1. The district may levy by resolution a tax upon real property or on any business located within the boundaries of the district; provided however, no such resolution shall be final nor shall it take effect until the qualified voters approve, by mail-in ballot, the tax which the resolution seeks to impose. If a majority of the votes cast by the qualified voters voting on the proposed tax are in favor of the tax, then the resolution and any amendments thereto shall be in effect. If a majority of the votes cast by the qualified voters voting are opposed to the tax, then the resolution seeking to levy the tax shall be deemed to be null and void.

2. The district may levy a real property tax rate lower than the tax rate ceiling approved by the qualified voters pursuant to subsection 1 of this section and may increase that lowered tax rate to a level not exceeding the tax rate ceiling without approval of the qualified voters.

3. The ballot shall be substantially in the following form:

(1)

; and

(2) In the county seat of a county of the first classification without a charter form of government containing a population of at least two hundred thousand:

4. No district levying a real property tax or a business license tax pursuant to this section may repeal or amend such real property tax or business license tax or lower the tax rate of such tax if such repeal, amendment or lower rate will impair the district's ability to repay any liabilities which it has incurred, money which it has borrowed or obligations that it has issued to finance any improvements or services rendered within the district.

(L. 1998 H.B. 1636 § 14, A.L. 1999 S.B. 20)