NasIt seems that Kelis isn't the only one who's dipping into Nas' pocket.

The Queens-bred emcee reportedly skipped out on paying taxes in 2006 and 2007 and owes the IRS more than $2.5 million in back taxes, according to TMZ,

For the last several months the rapper has been busy hashing out the financial details of his divorce from Kelis. After officially splitting in April, Kelis alleged that she was left high and dry and was receiving nothing from her ex's reported annual earnings of $11 million. Nas retorted stating that he made closer to $4 million, mostly from his record deal with label Def Jam. A judge ruled in Kelis' favor, ordering Nas to fork over $55,000 per month in support plus. Additionally, Nas must cover her monthly mortgage payment, prenatal expenses and medical coverage.

Although the once inseparable couple has parted ways, Nas and Kelis share an infant son named Knight Jones, who was born in July. Since the lil' guy arrived, the pair has appeared to be on good terms and were even spotted last month hanging out together at a New York City nightclub.

But now he's got bigger problems .. problems that total $2,584,206.31. Ouch!

No word yet on when Nas is planning to pay his tab.