Tax Due Dates
Massachusetts 2015
| Monday | Mar. 16 | Corporations and LLC’s – File Annual Report with Secretary of the Commonwealth for calendar year companies. |
| Thursday | Apr. 30 | Deposit SUTA tax owed through March with Division of Unemployment Assistance. |
| Friday | May 15 | File Form 990 for calendar year-end non-profit organizations. |
| Friday | Jul. 31 | Deposit SUTA tax owed through June with Division of Unemployment Assistance. |
| Tuesday | Sept. 15 | Corporations – File calendar year Form 355 or 355S if you timely requested a 6-month extension. |
| Monday | Nov. 2 | Deposit SUTA tax owed through September with Division of Unemployment Assistance. |
