Oklahoma State Question 215 (1940)
Oklahoma State Question 215 (Initiative #145) appeared on the 1940 ballot in Oklahoma. It received 408,559 "Yes" votes and 196,711 "No" votes; however, 423,886 "Yes" votes were required for passage, so it failed ().
It was an initiated constitutional amendment.
The objective of the measure was to simultaneously raise revenue for social security and discourage private entities from holding large tracts of undeveloped land, by instituting a graduated land tax, which would be an ad valorem tax on tracts of land exceeding 640 acres (1 square mile), and which would increase with each passing year until reaching a maximum of 50 mills. If the owner(s) of any such tract of land sold some or all of the excess (over 640 acres) within 5 years, for the purpose of development, 98% of the total taxes levied on that land under this amendment would then be refunded to the land's original owner.
94,249 signatures were required to qualify it for the ballot.