Don’t forget about important tax-related deadlines in the third quarter of 2018. This list is not all-inclusive, so there may be additional deadlines that apply to your specific situation. Contact your KraftCPAs tax advisor to make sure you’re meeting any applicable deadlines and to learn more about the filing requirements.
July 10
Individuals: Report June tip income, $20 or more, to employers (Form 4070).
July 31
Employers: Report income tax withholding and FICA taxes for second quarter 2018 (Form 941), and pay any tax due.
Employers: File a 2017 calendar-year retirement plan report (Form 5500 or Form 5500-EZ) or request an extension.
August 10
Individuals: Report July tip income, $20 or more, to employers (Form 4070).
Employers: Report income tax withholding and FICA taxes for second quarter 2018 (Form 941), if you deposited all associated taxes due on time and in full.
September 10
Individuals: Report August tip income, $20 or more, to employers (Form 4070).
September 17
Individuals: Pay the third installment of 2018 estimated taxes, if not paying income tax through withholding (Form 1040-ES).
Calendar-year C corporations: Pay the third installment of 2018 estimated income taxes.
Calendar-year S corporations: File a 2017 income tax return (Form 1120S) and pay any tax, interest and penalties due, if an automatic six-month extension was filed.
Calendar-year S corporations: Make contributions for 2017 to certain employer-sponsored retirement plans, if an automatic six-month extension was filed.
Calendar-year partnerships: File a 2017 income tax return (Form 1065 or Form 1065-B), if an automatic six-month extension was filed.
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