Tax Assistance MAKING OPPORTUNITY COUNT - VITA VOLUNTEER INCOME TAX ASSISTANCE (MOC) MOC’s Volunteer Income Tax Assistance (VITA) program is a national, IRS sponsored program in which IRS certified volunteers prepare and process tax returns for free for individuals and families whose income falls within the program guidelines.Phone: (978) 345-7040Address: 49 Nursery Lane, Fitchburg, MA 01420