Federal regulation places a monthly limit of six transactions that you can make remotely from you savings or money market accounts. If you exceed the limit you are going to incur unwanted fees.
How can you avoid the fees?
If you are at your limit and still need to transfer money before the end of the month if you do this at an ATM, in person at a branch, or through the mail and it doesn’t count. Think of it this way. If you leave your home or office it does not count.
Another option is having a line of credit attached to your checking account versus your savings account.