Just go to Yahoo! Voice and sign in with your ID and password. Are you in? Click My Services, then click Add Funds. We also offer an Auto Recharge option to prevent your funds from running out. The Auto Recharge option gives us permission to charge your credit card when your Yahoo! Phone Out account balance falls below $2.00.

If you're an existing Yahoo! Phone In user, you have the option to pay per month or yearly. If you pay for the year in advance, you will not be charged again for one calendar year. If you selected the option to pay each month, we will charge your credit card the monthly price for the Yahoo! Phone In service. You don't need to take any action to add funds to your Yahoo! Phone In service, it's done automatically!