The actor agreed Friday to pay $400,000 in back taxes, interest and penalties. The judge says $100,000 of that already has been paid.
Baldwin pleaded guilty to a charge of repeated failure to file income taxes.
The judge says that if Baldwin pays back the rest of the money within a year, the charge will be taken off his record. If not, he'll be sentenced to five year's probation.
Baldwin went to court between appearances on "All-Star Celebrity Apprentice." He's the youngest of the four acting Baldwin brothers.
He says he received bad advice from lawyers and accountants.