The filing deadline for 2017 tax returns is April 17, 2018. The City of Bowling Green does not have the capability to accept tax returns filed electronically. A paper return must be filed with the Income Tax Division. A copy of all W-2s and a copy of your federal tax return are required to be submitted with your City of Bowling Green return. For questions, visit the Income Tax Division webpage or call 419-354-6212.