915 Sullivan Ave Suite #7

South Windsor, CT 06074

Monday - Friday

9:00 a.m. - 5:00 p.m. EST

Saturday & Evenings Upon Request and Availability

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Important Tax Deadlines

January

16

January

January 16

Fourth quarter estimated tax due. Use Form 1040-ES.

31

January

January 31

Deadline for employers to provide copies of Forms W-2 and 1099 to employees.

February

15

February

February 15

If you claimed exemption from income tax withholding last year on the Form W-4 you gave your employer, you must file a new Form W-4 by February 15 to continue your exemption for another year.

March

1

March

March 1

Deadline for farmers and fishermen who have a balance due on their taxes to file their individual income tax returns and pay the balance due without penalties.

15

March

March 15

Deadline for S Corporation corporate tax returns (Form 1120-S) or to request an extension using Form 7004.

April

17

April

April 17

Deadline to file individual income tax returns (Form 1040, 1040A, or 1040EZ) and any taxes owed, or to file for an automatic 6-month extension.

17

April

April 17

Last day to contribute to a traditional IRA, Roth IRA, or SEP-IRA for the tax year.

17

April

April 17

First quarter estimated tax due. Use Form 1040-ES.

17

April

April 17

Deadline to file trust tax returns (Form 1041) or to request an automatic extension.

17

April

April 17

Deadline to file partnership tax returns (Form 1065) or to request an automatic extension (Form 7004).

17

April

April 17

Deadline to file corporate tax returns (Form 1120) or to request an automatic extension (Form 7004).

June

15

June

June 15

Deadline for U.S. citizens living abroad to file individual tax returns and pay any tax, interest, and penalties due, or to request a 4-month extension (Form 4868).

15

June

June 15

Second quarter estimated tax due. Use Form 1040-ES.

September

17

September

September 17

Third quarter estimated tax due. Use Form 1040-ES.

October

1

October

October 1

Deadline for existing employers to establish a SIMPLE IRA plan.

15

October

October 15

If you were given a 6-month extension to file your income tax return, file Form 1040, 1040A, or 1040EZ and pay any tax, interest, and penalties due.

15

October

October 15

Final deadline to file partnership tax return if you were given a 6-month extension.

Source: Internal Revenue Service, 2017