AUGUSTA – The Internal Revenue Service and scores of its partners nationwide will open hundreds of locations, including the IRS office in Bangor, on Saturday, March 29, in an effort to reach citizens who are eligible for an economic stimulus payment from the U.S. government but who normally are not required to file an income tax return.

About 320 IRS offices will be open Saturday to prepare the simple Form 1040A for people who are filing a return solely to receive their stimulus payment. IRS partners such as AARP and United Way of America also are making special efforts on Saturday to reach out to those who normally are not required to file a tax return. The Maine offices of the IRS are located at:

. 324 Harlow St. in Bangor.

. 68 Sewall St. in Augusta.

. 217 Main St. in Lewiston.

. 220 Maine Mall Road in South Portland.

Operating hours will be from 9 a.m. to 3 p.m., although some may be open longer. IRS employees will help prepare the Form 1040A returns for low-income workers, retirees, disabled veterans and others. IRS field assistance personnel also will visit nursing homes and similar locations to prepare returns.

If taxpayers have economic stimulus questions on March 29, they also can call 866-234-2942 between 9 a.m. and 3 p.m.

Millions of Americans who do not pay federal income taxes may be eligible for a $300 payment ($600 for married couples) if they have at least $3,000 in qualifying income. Qualifying income is defined as any combination of earned income such as wages, nontaxable combat pay and certain benefits from Social Security, Veterans Affairs and Railroad Retirement. Many households also will be eligible for an additional $300 for each qualifying child younger than 17.

The IRS this week is mailing 20.5 million Social Security and Veterans Affairs recipients a Package 1040A-3 that contains all the information they need to file a return immediately. Railroad Retirement recipients, low-income individuals and military personnel with nontaxable combat pay also can use the package if they need to file solely to receive the payment.