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A Carrier’s Free Phone Is Priced Into the Plan – Run the 36-Month Math First

A black smartphone hooked as bait on a large fishing hook, its bottom edge rippling dark green water.
Just the Tip:

A carrier’s free phone is usually 36 monthly bill credits, and they stop if you leave the qualifying plan. Before you sign, multiply that plan’s extra monthly cost over the plan you’d otherwise pick by 36, add what your trade-in would sell for, and compare the total with buying the phone outright and selling your old one.

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The carrier doesn’t discount the phone. It sells it to you at full price, usually on a 36-month installment plan, then cancels each payment with a bill credit for as long as your account qualifies. Pay the phone off early or move to a plan that doesn’t qualify, and the credits stop. Cancel service, and you lose the remaining credits and owe the rest of the balance.

That makes the plan the real price. Say the phone costs $1,000 and the qualifying plan runs $25 a month more than the carrier’s own cheaper tier. Over 36 months, that’s $900 in extra plan charges for a $1,000 phone.

A trade-in works the same way. Its value usually arrives as monthly credits over the same term, so you collect all of it only by staying. If your old phone would sell for $400 privately, the free phone costs you $1,300 over three years. Buying it outright and selling the old phone costs $600.

The deal wins when you’d pay for that plan anyway. Then the $900 isn’t extra, and the new phone costs you only the $400 trade-in. Some carriers also accept trade-ins in any condition, so a cracked or aging phone can be worth more as a trade-in than on the resale market.

Before you sign, get answers to three questions:

  • Would I choose this plan if no phone were attached?
  • Does the offer require a new line, and what does that line add each month?
  • What would my current phone sell for privately?

Take the credits only when the 36-month total is lower than the cost of buying outright, as it can be with a small extra plan cost or an old phone that won’t sell. Otherwise, buy the phone outright and pay for the plan you actually want.

Start the search for the plan you actually want with the best cheap cell phone plans.

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