Personal income tax is due the same time of every year;
nonetheless, this depends greatly on what type of income you are
filing. Employees of companies, as in those receiving a W-9 in the
mail, have filing deadlines in the Spring. Although the date always
falls in April, it varies from year to year. independent
contractors filing personal income tax, those who receive a 1099 in
the mail, have to report their taxes quarterly to the IRS. Business
owners also fall under the Independent Contractor title. Check with
the IRS' website for consistently updated information.