December 2018 Tax and Compliance Deadlines

Tax Law and News december-due-date

Welcome to December — the month of snowflakes, unwrapping presents, holiday gatherings, and yes, some important tax and compliance deadlines. Here’s a list for your review.

In December, it’s recommended that you:

  • Remind employees whose withholding status will change in 2019 that they should submit a new Form W-4 to the employer. The new form should be submitted as early as possible to guarantee implementation of the withholding change in January.
  • Establish tax return preparation procedures.
  • Develop tax preparation docket sheet.
  • Analyze tax season staffing needs.
  • Prepare tax season work assignments.
  • Prepare tax preparation packets and tax data organizers for clients.
  • Review new tax developments.
  • Remind individual clients of Jan. 15 due date for final 2018 estimated tax payment.
  • Remind business clients of Jan. 31 due date for filing Forms W-2 and 1099-MISC.

Key Compliance Dates:

Wednesday, Dec. 5 – Semiweekly depositors deposit FICA and withheld income tax on wages paid on Nov. 28-30.

Friday, Dec. 7 – Semiweekly depositors deposit FICA and withheld income tax on wages paid on Dec. 1-4.

Monday, Dec. 10 – Tipped employees who receive $20 or more in tips during November report them to the employer on Form 4070.

Wednesday, Dec. 12 – Semiweekly depositors deposit FICA and withheld income tax on wages paid on Dec. 5-7.

Friday, Dec. 14 – Semiweekly depositors deposit FICA and withheld income tax on wages paid on Dec. 8-11.

Monday, Dec. 17

  • Monthly depositors deposit FICA and withheld income tax for November.
  • Calendar-year corporations pay fourth installment of 2018 estimated tax.

Wednesday, Dec. 19 – Semiweekly depositors deposit FICA and withheld income tax on wages paid on Dec. 12-14.

Friday, Dec. 21 – Semiweekly depositors deposit FICA and withheld income tax on wages paid on Dec. 15-18.

Thursday, Dec. 27 – Semiweekly depositors deposit FICA and withheld income tax on wages paid on Dec. 19-21.

Friday, Dec. 28 – Semiweekly depositors deposit FICA and withheld income tax on wages paid on Dec. 22-25.

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