The Los Angeles County Voter Registration office told E! News last month that since she moved from her previous house in Venice, the starlet has yet to register and that voter material mailed to her home had been sent back.
Officials did tell us, however, that Lohan was registered and did vote in the 2008 election.
The California Secretary of State says the star has until Oct. 22 to register for the Nov. 6 election in the state, which is where she has her primary residence.
At a promotional event last night at the Regent Beverly Wilshire, Lohan told E! News that she's throwing her support behind the Republican presidential nominee, saying, "I just think employment is really important right now."
We'd argue so is voting, if she wants her voice to count.
—Reporting by Baker Machado