The FCC has just released the Public Notice setting the deadline for the payment of FY 2014 Regulatory Fees. Those fees are due on September 23. The FCC’s Public Notice on the fees is here: https://apps.fcc.gov/edocs_public/attachmatch/DA-14-1261A1.pdf
NOTE: that checks, money orders and cashier’s checks are no longer accepted for payment. So licensees need to make arrangements to pay by wire, electronic transfer of funds, or credit card.
There is a Guide to the Media Bureau Fees, and a link to a Fee look-up function available at: http://www.fcc.gov/regfees.