The Institute for Fiscal Studies estimates that about 650,000 self-employed people are not getting support.
Campaign group ExcludedUK said it was “disappointed” there were no measures put forward.
A spokeswoman said: “Whilst we appreciate the importance of the discussions about opening up the economy and the future economic recovery, those excluded have had no meaningful support for well over 100 days.
“With little to no income during this time and loaded with debt, amid so much uncertainty in the coming weeks and months to come, those excluded cannot look forward to the future with any hope.”
“The Chancellor again failed to address the inadequacies in the schemes which do not interlock and have not provided a safety net.”