Magento allows you to offer a variety of shipping options, including free shipping at any amount. Your free shipping offer can be updated at any time. Follow the steps below to enable it.
- Log into Magento > System > Configuration.
- In the Configuration Menu go to Sales > Shipping Methods.
- Expand the Free Shipping Menu.
- Enable Free Shipping by setting the drop down to "yes".
- Update the Method Name to say "Free Shipping".
- Set the Free Shipping Amount
- Be sure you set the selected countries; you'll probably want to set it to just the US.
Click "Save Config" in the top right corner when you're done!