Can you send money from one Paypal account to another Paypal account?

Yeah, you can definitely do so. I've sent money to my friends using Paypal for many times, and each time no problem occur. You just need to choose paid money, be sure to choose the "Personal Paid" option which will require no fee for your transaction. And then type in your sister's paypal email, set the sum of money you're going to pay. Then all done. Good luck.

Of course you can. Just like the other mylotters said you just need to send money and put the email the person you want to send the money. I have tried this when i transfer or send money to my second paypal account. And mine was not verified yet. But still i can send money.