Due Dates in 2006
Each date shown below is the prescribed last day for filing the return or making the payment of tax indicated. For income tax returns, the due dates apply to calendar-year taxpayers only. Employment tax due dates are determined on a calendar-year basis for all taxpayers. If any due date falls on a Saturday, Sunday, or legal holiday, the due date is the next succeeding day that is not a Saturday, Sunday, or legal holiday ( national, District of Columbia, or statewide in the state where the return is to be filed ).

Jan. 16th

Estimated Taxes. Final installment of 2005 estimated tax ( Form 1040-ES ) by individuals unless income tax is filed with final payment by January 31, 2006. Payment in full of estimated tax by farmers and fishermen unless income tax returns are filed by March 1, 2006.

Final installment of 2005 estimated tax ( Form 1041-ES ) by trusts, and by caledar-year estates and certain residuary trusts in existence more than two years, unless Form 1041 is filed and taxes are paid in full by January 31, 2006.

Jan. 31st

Employers' Taxes. Employers of nonagricultural and household employees file return on Form 941 for withheld income and FICA taxes in last quarter of the year.

Employers of agricultural workers must file the annual Form 943 to report income and FICA taxes withheld on annual wages.

Employers must file Form 940, annual return of federal unemployment ( FUTA ) taxes for the year.

Withholding. Employees' statements ( Form W-2 and Form 1099-R ) for amounts withheld in 2005 to be furnished by employer to employees. Statements for amounts withheld on certain gambling winnings ( Form W-2G ) to be furnished by payer to recipients.

Individuals. Individuals ( other than farmers and fishermen ) who owed, but did not pay, estimated tax on January 15th must file final 2005 income tax return and pay tax in full to avoid late payment penalty.

Trusts and Estates. Trusts, as well as estates and certain residuary trusts in existence more than two years, that owed but did not pay estimated tax on January 16th must file final 2005 income tax return and pay tax in full to avoid late payment penalty.

Information Returns. Annual statements must be furnished to recipients of dividends and liquidating distributions ( Form 1099-DIV ); interest, including interest on bearer certificates of deposit ( Form 1099-INT ); patronage dividends ( Form 1099-PATR ); original issue discount ( Form 1099-OID ); proceeds from broker and barter exchange transactions ( Form 1099-B ); proceeds from real estate transactions ( Form 1099-S ); certain government payments, including unemployment compensation and state and local tax refunds of $10 or more ( Form 1099-G ); royalty payments of $10 or more, rent or other business payments of $600 or more, prizes and awards of $600 or more, broker payments in lieu of dividends or tax-exempt interest of $10 or more, crop insurance proceeds of $600 or more, fishing boat proceeds, and medical and health care payments of $600 or more, ( Form 1099-MISC ); debt canceled by certain financial entities including financial institutions, credit unions, and Federal Government agencies of $600 or more ( Form 1099-C ); distributions from retirement or profit-sharing plans, IRAs, SEPs, or insurance contracts ( Form 1099-R ).

Business recipients of $600 or more of interest on any mortgage must furnish Form 1098 to payer.

Information called for on Form 8300 must be provided to each payer in a transaction of more than $10,000 in cash at any time during 2005. ( Form 8300 must have been filed with with the IRS by the 15th day after the date of transaction.)

Partnerships must provide Form 8308 to the transferor and transferee in any exchange of a partnership interest that involved unrealized receivables or substantially appreciated inventory items.

Trustees or issuers of IRAs or SEPs must provide participants with a statement of the account's value.

Feb. 15th

Individuals. Last day for filing Form W-4 by employers who wish to claim exemption from withholding of income tax for 2006.

Feb.28th

Information Returns. Annual 1099 series returns (together with transmittal Form 1096 for paper filings or Form 4804 for magnetic media filings) must be filed with the IRS to report payments to recipients who received Form 1099 on January 31, as indicated above. If filing electronically (not by magnetic media), the due date is extended to March 31.

Business recipients of $600 or more of interest from an individual on any mortgage must file Form 1098 with the IRS (together with transmittal Form 1096 for paper filings or Form 4804 for magnetic media filings). If filing electronically (not by magnetic media), the due date is extended to March 31.

Withholding. Form W-2 "A" copies for 2005 (together with transmittal Form W-3) must be filed with the Social Security Administration. If filing electronically (not by magnetic media), the due date is extended to March 31.

Form W-2G and Form 1099-R for 2005 "A" copies (together with transmittal Form 1096 for paper filings or Form 4804 for magnetic media filings) must be filed with the IRS. If filing electronically (not by magnetic media), the due date is extended to March 31.

Mar.1st

Individuals. Last day for farmers and fishermen who owed, but did not pay, estimated tax on January 15 to file 2005 calendar-year income tax return and pay tax in full to avoid late payment penalty.

Mar.15th

Corporations. Due date of 2005 tax returns (Form 1120 or Form 1120-A) for calendar-year U.S. corporations or calendar-year foreign corporations with offices in the U.S. Fiscal-year U.S. corporations and foreign corporations with a U.S. office must file by the 15th day of the 3rd month following the close of the tax year.

Due date of 2005 income tax returns for calendar-year S corporations (Form 1120S).

Last date for filing application ( Form 7004 ) by calendar-year corporations for automatic six-month extension to file 2005 income tax return.

Form 5452 for reporting nontaxable corporate distributions made to shareholders during calendar year 2005 should be filed by calendar-year corporations with income tax return. Fiscal-year corporations file Form 5452 with income tax return for first fiscal year ending after calendar year in which distributions were made.

Calendar-year corporations' 2005 information return ( Form 5471 ) with respect to foreign corporations. ( Fiscal-year corporations file form with income tax return. )

Last date for calendar-year corporation to file an amended income tax return ( Form 1120X ) for the calendar-year 2002.

Withholding. File returns on Form 1042 and Form 1042S to report tax withheld at the source from nonresident aliens, foreign corporations, foreign partnerships and foreign fiduciaries of a trust or estate.

2. In general, fiscal-year corporations must file within three years of the date the original return was due.