T-Mobile is pretty hot on saving its customers money, especially if the company can create positive PR about it (which it's pretty good at, all things being said). The latest scheme takes that dreaded word, 'taxes' and tries to at least make it tolerable by returning sales tax to you when new and existing customers buy a new smartphone.

Obviously this is a pretty big win for T-Mobile. It goes hand-in-hand with the ONE program the carrier offers, which includes taxes and other monthly fees in the price of the plan, unlike other networks who tag those fees on after the fact. On top of that, ONE also gives you a $150 rebate on every extra line added, up to 12 lines. T-Mobile's rather outspoken CEO John Legere reportedly said of the new tax scheme, "We’re giving you back more than you paid in sales tax on ALL T-Mobile smartphones for you and your entire family. So what are you waiting for?" Let David answer that.

To sign up to T-Mobile and qualify for this offer, go online or in store and register for the Equipment Installment Plan for any smartphone. Once that's done, you should receive a prepaid MasterCard with the returned sales tax already on it.

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