The mayor cited COVID-19 as a spending priority while cases in his city represent more than one-third of the nation's total.
New York MTA and 10 other transit systems have cited the crippling effects of ridership drops due to COVID-19.
The comptroller called for passage of a federal rescue bill and measures to shore up the city budget.
The city and state haven't put dollar amounts on what they need but both were already facing budget and pension stresses before the public health crisis struck.
Hotels and restaurants are losing as much as 50% of their business in the District of Columbia due to the coronavirus.
Chicago Mayor Lori Lightfoot's administration is stressing the city's improved liquidity and jolt of refinancing savings provide a cushion to manage the near-term tax losses.
The comptroller, citing projected losses in entertainment and tourism while the city is virtually closed, called for a savings target of 4% of tax levy-funded agency spending.
Cities and states that rely on hotel taxes and tourism-related revenues will lose billions as events and attractions shutter to slow the spread of COVID-19.
Chairman Patrick Foye says that the outbreak has no material effect for now, and the authority promises to continue timely disclosure.