CINCINNATI (AP) _ Some Ohio residents will be able to phone in their 1991 federal income tax returns and obtain quicker refunds under an Internal Revenue Service test project.

''It's an attempt on our part to relieve part of the taxpayers' burden,'' IRS spokesman Don Roberts said Thursday.

Phone lines will open in early January for the project, called TeleFile, Roberts said. The test will be limited to Ohio.

Those eligible to file the 1040EZ form - for single taxpayers who make less than $50,000 a year - will be able to use the system, Roberts said.

The IRS will mail a package including the 1040EZ form and a new 1040-TEL form. Taxpayers who file by phone will use the 1040-TEL form and call a toll- free number from a touch-tone phone.

A computerized voice will instruct them to punch in their Social Security numbers, gross wages, total interest earned and amount of tax withheld. Taxpayers then find out whether they get a refund or owe money.

Roberts said taxpayers using TeleFile could get refunds within three weeks. Taxpayers filing conventional returns generally get refunds in about six to eight weeks.

The system doesn't eliminate paperwork. Those using TeleFile will still have to mail in the 1040-TEL form and W-2 forms.

Ohio was chosen for the test because its mix of cities and rural areas seemed to make it an appropriate microcosm of the nation, Roberts said.