Tax Calendar for Businesses and Self-Employed

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Knowing when and what you have to file can save you a lot of headaches at tax time. To avoid paying penalties, mark your calendar with the following key dates.

If a filing or payment deadline falls on a Saturday, Sunday, or legal holiday, the deadline will be the next business day.

January 31, 2012

Furnish Forms 1098, 1099 and W-2G to recipients for certain payments during 2011. Furnish Form W-2 to employees who worked for you during 2011.

March 15, 2012

Corporations: File Form 1120 for 2011 calendar year and pay any tax due. For automatic 6-month extension, file Form 7004 and deposit estimated tax.
Electing Large Partnerships: Furnish Sch. K-1 (Form 1065-B) to each partner.
S Corporations: File Form 1120S for 2011 calendar year and pay any tax due. Furnish a copy of Sch. K-1 to each shareholder. File Form 2553 to elect S Corporation status beginning with calendar year 2012.

April 17, 2012

Corporations: Deposit the first installment of your estimated tax for 2012.
Electing Large Partnerships: File 2011 Form 1065 calendar year return.
Household Employers: File Sch. H with Form 1040 if you paid $1,700 or more to a household employee.
Individuals: File 2011 Form 1040, 1040A, or 1040EZ. For automatic 6-month extension file Form 4868 and deposit estimated tax. Pay the first installment of 2012 estimated tax. If you haven't applied for an extension, e-file or postmark your individual tax returns by midnight April 17, 2012.
Partnerships: File 2011 Form 1065 and furnish a copy of Sch. K-1 to each partner.
Last Day to make a 2011 IRA Contribution
If you haven't already funded your retirement account for 2011, do so by April 17, 2012. That's the deadline for a contribution to a traditional IRA, deductible or not, and a Roth IRA. However, if you have a Keogh or SEP and you get a filing extension to October 15, 2012, you can wait until then to put 2011 money into those accounts.

June 15, 2012

Corporations: Deposit the second installment of your 2012 estimated tax.
Individuals outside the U.S.: File 2011 Form 1040.
Individuals: Pay the second installment of estimated tax for 2012.
If you are self-employed or have other second-quarter income that requires you to pay quarterly estimated taxes, make sure your payment is postmarked by June 15, 2012.

September 17, 2012

Corporations: File calendar year 2011 Form 1120 or 1120S if you timely requested a 6-month extension.
Individuals: Pay the third installment of your estimated tax for 2012.
If you are self-employed or have other third-quarter income that requires you to pay quarterly estimated taxes, make sure your third quarter payment is postmarked by Sept. 17, 2012.
Partnerships: File 2011 Form 1065 if you timely requested a 5-month extension.

October 15, 2012

Electing Large Partnerships: File 2011 Form 1065 if you timely requested a 6-month extension.
Extended Individual Tax Returns Due
If you got a filing extension on your 2011 tax return, you need to get it completed and postmarked by October 15, 2012.
Last Chance to Recharacterize 2011 Roth IRA Conversion
If you converted a traditional IRA to a Roth during 2011 and paid tax on the conversion with your 2011 return, October 15, 2012 is the deadline for recharacterizing (undoing) the conversion. Doing so could save you money if the IRA has lost money since the time of the original conversion.

December 17, 2012