Please visit the Georgia Department of Revenue website to learn more about how to file a tax return. Complete the 2019 - 500 Individual Income Tax Return Online The Georgia Individual Income tax is based on the taxpayer's federal adjusted gross income, adjustments that are required by Georgia law, and the taxpayers filing requirements. Before sharing sensitive or personal information, make sure you’re on an official state website. .fill { Open the Form. It may take up to 90 days from the date of receipt by DOR to process a return and issue a refund. /*-->