From AARP Foundation:

ATTENTION: Beginning March 16, AARP Foundation will suspend all Tax-Aide services until further notice.
As the #coronavirus (COVID-19) situation continues to develop, our priority is to protect those most at risk, including our volunteers and taxpayers. We don’t know at this time whether Tax-Aide operations will start up again in some or all locations for the remainder of the tax season, or if the tax season is extended. We’ll continue to monitor and assess, and will post an update if sites reopen. 

Please visit the online site locator tool for the most up-to-date information, including any site re-openings.