T-Mobile’s $0-down financing plan bundles taxes and fees

T-Mobile is launching a new financing option that will allow you to pay for a device, taxes, and fees over 36 months. In an update on Tuesday , T-Mobile says its new Equipment Installment Plan (EIP) Flex 36 requires no upfront payment and will come with a 0 percent APR for a limited time. Even if you are financing a device, carriers typically require you to pay sales tax, an activation fee, or a down payment at checkout.