Here are some of the key deadlines Q4 2019 affecting businesses and other employers during the quarter 4 of 2019. Keep in mind that this list isn’t all-inclusive, so there may be additional deadlines that apply to you. Contact our Chicago tax accounting services team to ensure you’re meeting all applicable deadlines and to learn more about the filing requirements.

October 15

– Did you file a calendar-year C corporation that filed an automatic six-month extension. If so, file a 2018 income tax return (Form 1120) and pay any tax, interest and penalties due.

October 31

– Report income tax withholding and FICA taxes for third quarter 2019 (Form 941) and pay any tax due. (Unless eligible for the November 12 deadline).

November 12

– Report income tax withholding and FICA taxes for third quarter 2019 (Form 941), if you deposited on time and in full all of the associated taxes due.

December 16

– If a calendar-year C corporation, pay the fourth installment of 2019 estimated income taxes.