Employers - This due date applies only if you deposited the tax for the quarter in full and on time.
Employees Who Work For Tips
Employees who work for tips - If you received $20 or more in tips during October, report them to your employer. You can use Form 4070 Employee's Report of Tips to Employer.
Employers - Nonpayroll Withholding. If the monthly deposit rule applies, deposit the tax for payments in October.
Employers - Social Security, Medicare, and withheld income tax. If the monthly deposit rule applies, deposit the tax for payments in October.
Exempt Organizations - File Form 990. This due date applies only if you timely requested an automatic 6-month extension. Otherwise, see May 15.