jermaine jackson (peace sign)*It shouldn’t come as a surprise that the purchase of that ultra-expensive Ferrari that Jermaine Jackson bought last month is likely to come back to bite him in the butt.

According to a TMZ report, Jermaine is falling farther and farther behind in hi8s child support payments. He’s on file as paying Alejandra Jackson $3K a month for 13-year-old Jermajesty and 17-year-old Jaafa, however,  he hasn’t made a payment in months.

Court docs obtained by TMZ show … of the $12K that he owes in back payments … he’s only coughed up a measly 85 bucks.

The L.A. County Child Support Services Dept. has filed papers asking a judge to hold Jermaine in contempt … which could put him behind bars for 20 days.

BTW, this isn’t the first time Jermaine has slacked off.  He belatedly paid $80,000 back in March 2011 … and anted up another $33K in back support this past May.  He’s also had his wages garnished.

Remember what we said about the car? If the current case goes before a judge, Jermaine is gonna have a hard time explaining how he paid $160K for a Ferrari last month and can’t pay child support.

jermaine jackson & ferrari

Jermaine Jackson and his $160,000 Ferrari