< Back to Thought Leadership

2018 Q4 Tax Calendar: Key Deadlines For Businesses And Other Employers

Here are some of the key tax-related deadlines affecting businesses and other employers during the fourth quarter of 2018. Keep in mind that this list isn’t all-inclusive, so there may be additional deadlines that apply to you. If you have questions, be sure to contact your local Blue & Co. advisor to ensure you’re meeting all applicable deadlines and to learn more about the filing requirements.

October 15

  • If a calendar-year C corporation that filed an automatic six-month extension:
    • File a 2017 income tax return (Form 1120) and pay any tax, interest and penalties due.
    • Make contributions for 2017 to certain employer-sponsored retirement plans.

October 31

  • Report income tax withholding and FICA taxes for third quarter 2018 (Form 941) and pay any tax due. (See exception below under “November 13.”)

November 13

  • Report income tax withholding and FICA taxes for third quarter 2018 (Form 941), if you deposited on time and in full all of the associated taxes due.

December 17

  • If a calendar-year C corporation, pay the fourth installment of 2018 estimated income taxes.

 

Tax Reform Resource Center

Blue & Co.,LLC - Read more in our Hot Topic Archive! Click Here. Like what you read? Subscribe to our newsletter. Click Here.

 

Related Articles

Donor Gift Receipts – IRS Substantiation Requirements

Donor Gift Receipts: IRS Substantiation Requirements

With the end of the year approaching, many not-for-profits see an increase in giving. Therefore, we thought it would be helpful to provide a brief summary of donors’ documentation requirements for tax-deductible gifts and what not-for-profits can provide to donors to assist in fulfilling these requirements. The Internal Revenue Service has provided documentation requirements for […]

Learn More
Buying Qualifying Business Assets Before Year-End Could Reduce Your Tax Liability

Buying Qualifying Business Assets Before Year-End Could Reduce Your Tax Liability

There is still time to reduce your 2018 tax liability by purchasing qualifying business assets, but you need to act soon! The Tax Cuts and Jobs Act (TCJA) has enhanced two depreciation-related breaks that are popular year-end tax planning tools for businesses. To take advantage of these tax-saving measures, you must purchase qualifying assets and […]

Learn More
Make 2019 NQDC Plan Deferral Elections Now

Make 2019 NQDC Plan Deferral Elections Now

Employers may offer executives or other key employees a nonqualified deferred compensation (NQDC) plan. NQDC plans pay employees in the future for services currently performed. The plans allow deferral of the income tax associated with the compensation. But to receive this attractive tax treatment, NQDC plans must meet many requirements. One is that employees must […]

Learn More