TO ROLL OVER MINUTES TO THE NEXT PERIOD YOU MUST BUY NEW MINUTES BEFORE....BEFORE OLD MINUTES EXPIRE OR YOU WILL LOSE THEM!!!
Minutes can be added at any time as the unused minutes will add up to the new recharge minutes.
The unused minutes will roll over month-to-month as long as your subscription is current. If you visit Tracfone.com, "buy time", you will see the various subscription length options. In general, the least expense "buys" will be for the annual subscription with the associated minutes---meaning, the more you spend, the cost per minute decreases. With the double minutes option, with an annual subscription/minutes purchase, you pay about 9 cents per minute. You can view your subscription details on the phone Menu>Prepaid>My Airtime info