Britney Spears has been dragged into yet another financial mess - one of her brand companies owes more than $23,000 in taxes for earnings dating back four years.

A week after Spears learned she'd have to pay her various legal representatives $400,000, the pop star has been hit with another high-cost headache.

A document obtained by E! shows that Britney Online Inc., one of Britney Spears' numerous name-brand companies, owes $23,589.17 in California state taxes on the entity's 2004 earnings.

A warning from the Franchise Tax Board of the State of California states that "further interest and fees will accrue" if the sum is not paid.

Spears' father Jamie and a court-appointed lawyer took charge of the singer's financial affairs after fighting for conservatorship of the "Toxic" singer's estate following her hospitalization for mental illness issues in February.

It is not known if the singer's other brand-name companies face similar tax issues.

-Britney Spears Pictures

(This news article provided by World Entertainment News Network)