AARP tax help will end on April 15, so if you need help filing your taxes, make your appointment now. AARP tax aides help on Tuesdays from 9:30 am until 1:30 pm and Saturdays from 9:30 am until 12:30 pm at the Sulphur Springs Public Library. We require photo identification, social security cards, and all tax-related papers for tax preparation and filing your taxes.