A. Individuals have until April 30th to file their taxes if there is no business income earned by husband or wife. Individuals who have business income have until June 15th to file, but tax amounts owing are still due by April 30th. Corporations have 6 months to file, and 3 months to pay if the amount owing is $3000 and there is a perfect compliance record. Estates have 3 months to file and pay in most cases.