Our ad cycle starts on the 1st of every month and runs through the end of the month, due to this all payments must be made by the 20th of the previous month to insure your ad slot is held for the month in question. If your on a 3, 6, or 12 month plan that date my differ. For example, if you would like your ad to run from March 1st through March 31st, you must submit your payment by no later than Feburary 20th.