The U.S. Supreme Court has declined to hear an appeal from credit bureau Equifax Inc. from what is considers an adverse tax ruling in Mississippi.
The nation's high court Monday let stand a ruling by the Mississippi court.
The appeal is a reaction to a 2013 Mississippi Supreme Court decision that Equifax had to prove that it didn't earn any taxable income in the state.
The state Department of Revenue examined Equifax's income and allocated some to Mississippi, ruling it owed taxes and penalties.
The Mississippi court upheld the Revenue Department's calculation of the company's taxes based on revenue earned in Mississippi, thus increasing its tax liability from zero to over $700,000, according to court documents.
The U.S. Supreme Court had no comment on its decision.