fbpx

< 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

Read More Thought Leadership Articles Like what you read? Subscribe to our newsletter. Click Here.

 

quickbooks desktop discontinued

QuickBooks Desktop No Longer Available for New Subscriptions after July 2024

By Nancy Orben, CPA, Senior Manager at Blue & Co. Intuit has announced an official cutoff date for new purchases of QuickBooks Desktop. How does this effect you? If your […]

Learn More
donor advised funds

IRS Proposed Regulations: Impact on Donor Advised Funds

By Corey Schunemann, CPA, Manager at Blue & Co. The IRS issued proposed regulations that could dramatically affect the landscape and operations of Donor Advised Funds (“DAF”). While many organizations […]

Learn More

Participate in the 2024 Dental Survey: Help Blue & Co. Offer Better Solutions for the Dental Industry

Since 1995, Blue & Co. has partnered with private practice dentistry to give something back to the profession that our dental clients desperately needed: good data. And we aim to […]

Learn More