Britney Spears has settled her legal dispute with her dad, Jamie Spears, and in a stunning turn of events, Jamie isn't paying Britney a cent, but Britney is paying Jamie's legal bills ... TMZ has learned.

Sources with direct knowledge tell TMZ ... the case has quietly settled and Britney is furious. We're told her lawyer, Mathew Rosengart, assured her she had a solid case, but in the end, she's paying Jamie's legal bills which we're told amount to more than $2 million.

Mind you, Britney has paid Rosengart millions -- we've been told north of $4 million -- but now Britney is deep in the hole over the case.

Rosengart had alleged Jamie mishandled and fleeced the estate while he was her conservator for 13 years. Jamie and his team led by attorney, Alex Weingarten, have always been clear that he got every expenditure approved by the conservatorship judge, so everything was kosher.