WASHINGTON — Nearly 160 million workers will benefit from the extension of the reduced payroll tax rate that has been in effect for 2011. The Temporary Payroll Tax Cut Continuation Act of 2011 temporarily extends the two percentage point payroll tax cut for employees, continuing the reduction of their Social Security tax withholding rate from 6.2 percent to 4.2 percent of wages paid through Feb. 29, 2012. This reduced Social Security withholding will have no effect on employees' future Social Security benefits.

Employers should implement the new payroll tax rate as soon as possible in 2012 but not later than Jan. 31, 2012. For any Social Security tax over-withheld during January, employers should make an offsetting adjustment in workers' pay as soon as possible but not later than March 31, 2012.

Employers and payroll companies will handle the withholding changes, so workers should not need to take any additional action.

Under the terms negotiated by Congress, the law also includes a new "recapture" provision, which applies only to those employees who receive more than $18,350 in wages during the two-month period (the Social Security wage base for 2012 is $110,100, and $18,350 represents two months of the full-year amount). This provision imposes an additional income tax on these higher-income employees in an amount equal to 2 percent of the amount of wages they receive during the two-month period in excess of $18,350 (and not greater than $110,100).

This additional recapture tax is an add-on to income tax liability that the employee would otherwise pay for 2012 and is not subject to reduction by credits or deductions. The recapture tax would be payable in 2013 when the employee files his or her income tax return for the 2012 tax year. With the possibility of a full-year extension of the payroll tax cut being discussed for 2012, the IRS will closely monitor the situation in case future legislation changes the recapture provision.

The IRS will issue additional guidance as needed to implement the provisions of this new two-month extension, including revised employment tax forms and instructions and information for employees who may be subject to the new "recapture" provision. For most employers, the quarterly employment tax return for the quarter ending March 31, 2012 is due April 30, 2012.

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Upcoming Tax Dates

September 7 Everyone
Federal Holiday (Labor Day) - Details

September 10 Employees who work for tips
If you received $20 or more in tips during August, report them to your employer - Details

September 10 Communications and air transportation taxes under the alternative method.
Deposit the tax included in amounts billed or tickets sold during the first 15 days of August.

September 14 Regular method taxes
Deposit the tax included in amounts billed or tickets sold during the last 16 days of August.

September 15 Individuals
Make a payment of your 2015 estimated tax if you are not paying your income tax for the year through withholding (or will not pay in enough tax that way). Use Form 1040-ES. This is the third installment - Details

September 15 Corporations
File a 2014 calendar year income tax return (Form 1120) and pay any tax, interest, and penalties due. This due date applies only if you timely requested an automatic 6-month extension - Details

September 15 S Corporations
File a 2014 calendar year income tax return (Form 1120S) and pay any tax due. This due date applies only if you timely requested an automatic 6-month extension - Details

September 15 Partnerships
File a 2014 calendar year return (Form 1065). This due date applies only if you were given an additional 5-month extension - Details

September 15 Corporations
Deposit the third installment of estimated income tax for 2015 - Details

September 15 Social security, Medicare, and withheld income tax
If the monthly deposit rule applies, deposit the tax for payments in August.

September 15 Nonpayroll withholding
If the monthly deposit rule applies, deposit the tax for payments in August.

September 25 Communications and air transportation taxes under the alternative method.
Deposit the tax included in amounts billed or tickets sold during the last 16 days of August.

September 29 Regular method taxes
Deposit the tax for the first 15 days of September.

September 29 Regular method taxes (special September deposit rule)
Deposit the tax for the period beginning September 16 and ending September 26.

September 29 Communications and air transportation taxes under the alternative method (special September deposit rule).
Deposit the tax included in amounts billed or tickets sold during the period beginning September 1 and ending September 11.

September 30 Wagering tax
File Form 730 and pay the tax on wagers accepted during August.

September 30 Heavy highway vehicle use tax
File Form 2290 and pay the tax for vehicles first used in August.

View More Tax Dates