March 15, 2016:
Foreign Persons US Income subject to withholdings- Employers Make Monthly Payroll tax deposit on the 15th of each month
- S-Corp Election Decision Due (if applicable)
- S-Corp Returns Due / Calendar Year
- Issue K-1’s S Corporate Returns / Calendar Year
- Corporate Returns Due / Calendar Year
- Corporate Returns/S Corp Extensions Due / Calendar Year
- Form 1042S – Foreign Persons US Income subject to withholdings
- Form 1042 – Annual Tax Return of US Income subject to withholdings of Foreign Persons
- Electing Large Partnerships – Issue K-1s to partners – even if your on extension
- Electronic filing of W-3’s with Social Security Admin including issued W-2’s
- Electronic filing of US transmittal of US information Returns
- Social security, Medicare, and withheld income tax
- Nonpayroll withholding
March 25, 2016:
- Communications and air transportation taxes under the alternative method.
March 29, 2016:
- Regular method taxes. Deposit the tax for the first 15 days of March.
March 31, 2016:
- Electronic filing of Forms W2. File copies of all the Forms W2 you issued for 2015. This due date applies only if you electronically file.
- Electronic filing of Forms W2G. File copies of all the Forms W2G you issued for 2015. This due date applies only if you electronically file.
- Electronic filing of Forms 8027. File Forms 8027 for 2015. This due date applies only if you electronically file.
- Wagering tax. File Form 730 and pay the tax on wagers accepted during February.
- Heavy highway vehicle use tax. File Form 2290 and pay the tax for vehicles first used in February.