Coventry City, Doncaster Rovers and Leyton Orient have put their players on temporary leave as a result of the financial effects of coronavirus.
It means they will be paid 80% of their wages - up to £2,500 a month - via the government's job retention scheme.
The clubs are also putting a proportion of their non-playing staff on furlough.
League One sides Coventry and Doncaster say they will top up all wages to 100% while League Two Orient have pledged to "pay the remaining salaries above the cap for the months of March and April".