Riley, a spokeswoman for the IRS, said that agency got a list of potentially eligible seniors from the Social Security Administration and sent letters, including a sample 1040A form, to them in the spring.
But people who received more than $3,000 in qualifying income who don't usually file a return have to file a 1040A form in order to get the stimulus check.
Trombley has scheduled a special session to help seniors fill out the 1040A form, which he estimates will take about five minutes for each.
One simplification should aim to enable more of the 100 million simple filers (people with only wages and interest income) to file scannable 1040EZ and
1040A forms. For example, present rules bar 1040EZ usage by a taxpayer with more than S400 in interest income.