And now there are 11.
On behalf of the group, "Let Voters Decide," Jefferson City lawyer Marc Ellinger recently gave Secretary of State Robin Carnahan's office two more initiative petition proposals, to ask voters to eliminate Missouri's income taxes and replace them with an expanded, statewide sales tax.
In February, the secretary of state's office approved the first nine proposals for circulation, with virtually identical language for the proposed ballot titles for each one, to gather signatures toward placing the proposal on next year's ballot.
Although the ballot language is the same, the internal wording of each proposed Constitutional amendment is different from the others.
All 11 propose a top state sales tax of 7 percent - a level critics have said is too low.
"Our idea is to come up with a good measure that will help move the state forward, and then let voters decide," Ellinger said.
And he said the two newest proposals are the result of continuing study.