Is it permissible for a charitable organization to accept money for zakaat al-fitr at the beginning of Ramadaan, so that they can put it to the best possible use?

Praise be to Allaah. 

If there are no poor people in the area, or those who will take it
do not really need it and will not eat it, but will instead sell it
at half price, and it is difficult to find poor and needy people who
will eat it, then it is permissible to send it outside the country.
It is permissible to give the price (of zakaat al-fitr) at the beginning
of the month to an agent who will buy (zakaat al-fitr) and deliver it
to deserving people at the time when it should be paid, which is the
night before Eid or two days before that. And Allaah knows best.