The Liz & Dick actress made headlines in December for apparently using a $100,000 cheque from Charlie Sheen to pay off a 2009 tax debt that totalled $93,701.
Lohan was said at that time to additionally owe the US government $140,203 in outstanding taxes for 2010.
Court documents obtained by TMZ appear to show that Lohan also must pay off $56,717.90 for unpaid income tax for the year 2011.
Lohan has yet to comment on the apparent new tax debt.
It was reported earlier this month that Lohan was living rent-free with her mother Dina Lohan in New York in a bid to save money.
She is also facing two legal problems in the form of a possible probation violation in her theft case and a potential charge for a New York nightclub confrontation.
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