January
| DAY | FORM | EVENT |
| 15 | 1040ES | Estimated-Final Installment of 2007 estimated taxes by individual. |
| 15 | 1040ES | Estimated-Final Installment of 2007 estimated taxes by trusts and estates. |
| 31 | 941 | Employer Taxes-Employer's Quarterly Federal Tax Return for 4th quarter 2007. |
| 31 | 943 | Employer Taxes-Employer's Annual Tax Return for Agricultural Employees for 2007. |
| 31 | 940 | Employer Taxes-Employer's Annual Federal Unemployment tax return (FUTA) for 2007. |
| 31 | W-2 1099R |
Withholding-Employees' statements for amounts withheld in 2007 due to employees. |
| 31 | 1099DIV 1099INT 1099PATR 1099OID 1099B 1099S 1099S 1099G 1099MISC 1099C |
Annual statements are due to recipients of dividends, interests, patronage dividends, original issue discount proceeds, proceeds from real estate transactions, certain government payments, royalties, rent payments, awards and other business payments. |
| 31 | 1098 | Mortgage Interest Statement to payer. |
February
| DAY | FORM | EVENT |
| 15 | W-4 | Individuals-Last Day for filing Employees Withholding Allowance Certificate. |
| 29 | 1099 1096 |
Information Returns -1099 Series returns along with Annual Summary and Transmittal Form for 2007 Due To IRS. |
| 29 | W-2 "A" copy W-3 |
Withholding-Wage and Tax Statements and Transmittal Form for 2007 Due to IRS. |
| 29 | W-2 G 1099R 1096 "A" copies |
Withholding-Certain gambling winnings for state tax return and distribution from pensions, annuities and retirement plans statement with transmittal statements. |
March
| DAY | FORM | EVENT |
| 17 | 1120 | Due date of 2007 corporate income tax return for calendar year
corporations. Fiscal year corporations must file by the 15th day of the 3rd month following the close of their tax year. |
| 17 | 1120S | Due date of 2007 corporate income tax return for calendar year
S-corporations. Fiscal year S-corporations must file by the 15th day of the 3rd month following the close of their tax year. |
| 17 | 7004 | Last date for filing application for automatic 6-month extension for 2007 calendar year corporations and S-corporations. Fiscal year corporations and S-corporations must file by the 15th day of the 3rd month following the close of their tax year. |
| 17 | 1120X | Last year for filing an amended corporate income tax return for the calendar year 2004 |
April
| DAY | FORM | EVENT |
| 15 | 1040 1040A 1040EZ |
Individual income tax returns due. |
| 15 | 4868 | Last day for filing an automatic individual income tax extension |
| 15 | 1040X | Last day for filing and amended individual income tax return for 2004 |
| 15 | 1040ES | First installment of estimated income tax for individual is due. |
| 15 | 8109 | First installment of estimated income tax for calendar year corporations is due. Fiscal year corporations are required to make payments by the 15th day of the 4th, 6th, 9th and the 1st month of the following fiscal year. |
| 15 | 1041ES | First installment of estimated income tax for trusts is due. Fiscal year trusts are required to make payments by the 15th day of the 4th, 6th, 9th and the 1st month of the following fiscal year. |
| 15 | 1041 | Fiduciary income tax return for calendar year 2007. |
| 15 | 2758 | Last day for filing a trust income tax extension. |
| 15 | 8736 | Last day for filing a automatic trust income tax extension. |
| 15 | Last day for trusts and estates to file an amended tax return for calendar year 2004. | |
| 15 | 1065 | Last day for filing calendar year 2007 Partnership returns. |
| 15 | 8736 | Last day for filing an automatic 3-month extension for partnership returns. Fiscal year partnerships must file by the 15th day of the 4th month following the close of their tax year. |
| 15 | Last day for filing an amended partnership return for 2004. | |
| 30 | 941 | Employer Taxes-Employer's Quarterly Federal Tax Return for 1st quarter 2008. |
May
| DAY | FORM | EVENT |
| 15 | 990 | Annual information return for 2007 calendar year exempt organizations. |
| 15 | 7004 | Last day for filing an automatic 6-month extension for calendar year exempt organization returns. |
| 30 | 5498 | Annual statement to IRS regarding 2008 account balances for IRA or SEP. |
June
| DAY | FORM | EVENT |
| 16 | 8109 | Second installment of estimated income tax for calendar year corporation is due. |
| 16 | 1040ES | Second installment of estimated income tax for individuals is due. |
| 16 | 1041ES | Second installment of estimated income tax for calendar year trusts is due. |
July
| DAY | FORM | EVENT |
| 31 | 941 | Employer Taxes-Employer's Quarterly Federal Tax Return for 2nd quarter 2008. |
September
| DAY | FORM | EVENT |
| 15 | 8109 | Third installment of estimated income tax for calendar corporations is due. |
| 15 | 1040ES | Third installment of estimated income tax for individuals is due. |
| 15 | 1040ES | Third installment of estimated income tax for calendar year trusts is due. |
| 15 | 1120 1120S |
Last day for filing calendar year tax returns for corporations and S-corporations that requested and automatic 6-month extension. |
October
| DAY | FORM | EVENT |
| 15 | 1040 | Last day for filing 2007 income tax returns by individuals who file form 4868 for an additional time to file. |
| 15 | 941 | Employer Taxes-Employer's Quarterly Federal Tax Return for 3rd quarter 2008. |
December
| DAY | FORM | EVENT |
|
15 |
8109 | Last installment of estimated income tax for calendar year corporation is due. |