Tyga Loses $16k Legal Battle … With His Accountant

EXCLUSIVE 1228_tyga_article_tmz
gives new meaning to “rack, rack city” by racking up his accountant”s credit card bill to the tune of $16k — and now a judge has ordered him to pay the piper.

Accountant Robert Seltzer claims he and the rapper struck an oral agreement back in 2011 … in which Tyga could use Robert”s CC to charge food, hotel, and transportation while touring — and then pay him back at the end of each month.

Problem is … Tyga never paid, so he sued to get his money back — $13,396, plus interest.

But Tyga missed his court date … so a judge entered a default judgment in Robert”s favor and ordered the rapper to cough up $16,801.67.

We”re told Tyga has paid some of the cash back.