R. Kelly Owes $4.8 Million In Unpaid Taxes

According to documents filed by the IRS, Kelly owes money on his taxes going way back to 2005.

A rep for Kelly tells TMZ, "R. Kelly is in the process of working everything out with the government and is confident that all his obligations will be satisfied."

It breaks down like this ...

2005 - $1,472,366.77
2006 - $710,520.51
2007 - $376,180.11
2008 - $1,122,694.90
2009 - $173,815.18
2010 - $992,495.24