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Important Dates

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If you use a fiscal year (rather than the calendar year) as your tax year, you should change some of the dates in the general federal tax calendar. Use the following general guidelines to make these changes.

The 3 months that make up each quarter of a fiscal year may be different from those of each calendar quarter, depending on when the fiscal year begins. Also see Saturday, Sunday, or legal holiday, earlier.

Individuals
Form 1040
This form is due on the 15th day of the 4th month after the end of your tax year. Form 4868 is used to request an extension of time to file Form 1040.

Estimated tax payments (Form 1040-ES)
Payments are due on the 15th day of the 4th, 6th, and 9th months of your tax year and on the 15th day of the 1st month after your tax year ends.

Partnerships
Form 1065
This form is due on the 15th day of the 4th month after the end of the partnership's tax year. Provide each partner with a copy of Schedule K-1 (Form 1065) or a substitute Schedule K-1.

Form 1065-B (electing large partnerships)
This form is due on the 15th day of the 4th month after the end of the partnership's tax year. Provide each partner with a copy of Schedule K-1 (Form 1065-B) or a substitute Schedule K-1 by the first March 15 following the close of the partnership's tax year.

Corporations and S Corporations
Form 1120 and Form 1120S (or Form 7004)
These forms are due on the 15th day of the 3rd month after the end of the corporation's tax year. S corporations must provide each shareholder with a copy of Schedule K-1 (Form 1120S) or a substitute Schedule K-1. Form 7004 is used to request an extension of time to file Form 1120 or Form 1120S.

Estimated tax payments
Payments are due on the 15th day of the 4th, 6th, 9th, and 12th months of the corporation's tax year.

Form 2553
This form is used to choose S corporation treatment. It is due no more than two months and 15 days after the beginning of the tax year the election is to take effect or at any time during the preceding tax year.

The information in this tax calendar comes from the Internal Revenue Service Publication 509.
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Mason + Rich Certified Public Accountants
Tel: (603) 224-2000
Fax: (603) 224-2613
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