One greengrocer said hardly anything was being sold, lamenting having to dispose of goods and making a loss.
"The security situation has improved. Thefts have disappeared, but bread has also disappeared," said another shopkeeper.
Afghans have previously reported a scarcity in jobs. Banks were also closed for weeks and only reopened on August 30.
The United Nations has also warned that the freezing overseas of some $10 billion in Afghan assets - to keep it out of Taliban hands - would cause "a severe economic downturn" and could push millions more Afghans into poverty and hunger.