It is hoped a new map which allows small businesses to log the effect of parking charges on business will urge councils to take action.
In a survey 75% of small to medium businesses said that parking charges were a major issue for small companies, equal to business rates.
A spokesperson for the FSB said one recent council to make improvements was Wandsworth.
Parking charges were slashed by 50%, this is something the federation wants throughout London, affordable parking to boost trade.
Spokesperson for the FSB said "some councils that have increased parking charges and moved to ticket-less parking machines have seen a decrease in revenue."
More top news
New figures show that lifeboat crews in London were the busiest in Britain in 2014. We look back at some of their most dramatic rescues.
Vlogging from her home in London she has become a YouTube sensation, so successful she has just published her first book.
Health union workers were due to walk out on Thursday in a dispute over pay.