STEVIE WONDER TAX MAN CALLED TO SAY YOU OWE ... Some Spare Change

Stevie Wonder's such a legend, even his tax liens are entertaining ... because the tax collector is looking for a sum of cash Stevie's most likely got tucked in his back pocket right now.

L.A. County says Stevie owes -- wait for it -- a whopping $645.32 for unpaid property taxes. 

We see plenty of tax liens dropped on celebs ... from several million owed down to a couple thousand, but we've never seen one this tiny.

He's clearly got this kinda cash ... so we're guessing this is a clerical error.  We reached out to Stevie's people, but haven't heard back.

Don't You Worry 'Bout a Thing, L.A. ... he's good for it.