Chad Johnson -- I'm Losing $45,000 a Month!

Chad Johnson's money woes have gotten so bad, his expenses outpace his income to the tune of $45,982.76 per month ... TMZ has learned.

As TMZ first reported, Johnson has been battling his baby mamas in an effort to lower his child support payments ... seeing as he no longer makes the cash he used to at the height of his NFL career.

In docs filed in April, Johnson claims to only make about $3,000/month ... but that immediately disappears thanks to the $16,525 he already pays in child support.

Then when you get to his own expenses, Johnson forks over $9,063.24 in mortgage payments, $2,500 for food, $2,650 on car expenses, $3,500 on clothing, $250 for grooming, $5,000 on entertainment, $1,000 for pet expenses along with various other expenses that total $31,154.76.

Add it all up ... and Johnson is in the red $45,982.76/month.

But it's not all bad news ... Chad still has two houses, two cars, and a few bank accounts that put his assets at a nice $4,720,672.57.

Maybe 30 days behind bars wouldn't be such a bad thing ... FREE MEALS!