Lil Wayne may have money to blow, but he still isn’t paying his taxes, apparently.

TMZ reports Weezy didn’t pay taxes in 2011 and 2012 … and he now owes Uncle Sam more than $12 million!

According to a tax lien — obtained by TMZ — Weezy failed to pay taxes for 2011 and 2012.  For 2011 he owes a staggering $5,843,952.  And for the following year, even worse — $6,311,132.

Wayne has had his financial issues. He owed $7 mil for back taxes in 2008-9, but he cleared the debt in 2012.

He’s also had legal issues.  In 2012 … Wayne famously lost a case against Quincy Jones’ son after thumbing his nose at the court.  A jury socked Wayne for $2.2 mil.

Wayne is reportedly worth $135 MILLION. As Weezy says, “You got money and you know it.  Take it out your pocket and show it and throw it.”

C’mon on Wayne … we all know you have the bread. Get that taken care of ASAP. Tax liens aren’t a joke!