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When a carrier advertises a "free" or heavily discounted phone, it usually means you finance the phone on a device payment plan and receive monthly bill credits that cancel out some or all of the payment. Stay for the full term and the phone ends up discounted. Leave early and you owe the remaining balance, and you forfeit the remaining credits.
The terms have grown longer. Verizon and AT&T have offered 36-month device payment plans for years, and T-Mobile began offering 36-month installments in late 2025. That's three years of being tied to a carrier if you want the full discount. Here's how it works and how to decide.
How device payment plans work
- The phone's full retail price is split into monthly installments over the term, often 24 or 36 months.
- Installments are typically interest-free, but your credit is checked.
- With a promotion, you receive monthly bill credits that offset the installment for the full term.
- The phone stays locked to the carrier until it's paid off (see unlocking).
What happens if you leave early
If you cancel your line, switch carriers or sometimes even change to an ineligible plan before the term ends:
- The remaining device balance becomes due.
- The remaining bill credits stop, so you lose the rest of the promotional discount.
- Some promotions also require staying on a specific premium plan the entire time. Downgrading can cancel the credits.
That's why a 36-month deal is effectively a three-year commitment, even without a formal contract.
Switcher deals that pay off your balance
Competing carriers often offer to pay off your old carrier's device balance, typically as a prepaid card or bill credits, when you switch. These offers have caps, conditions and timelines. Read them carefully, and keep records. See how port-in and switcher promos pay out.
Financing vs buying outright
| Carrier financing with credits | Buying unlocked outright | |
|---|---|---|
| Upfront cost | Low or none | Full price (or a budget phone) |
| Total cost | Can be low if you stay the full term on the required plan | Known upfront; no plan requirement |
| Flexibility | Locked in for the term | Switch carriers anytime |
| Plan choice | Often requires a premium plan | Choose the cheapest plan that fits |
| Credit check | Yes | No |
The hidden cost of financing deals is often the required premium plan. If the promo requires a plan that costs much more than you'd otherwise pay, the "free" phone can cost more than buying it outright and choosing a cheaper plan or MVNO.
How to calculate the real cost
- Multiply the monthly price of the required plan by the number of months in the promotion.
- Do the same for the cheapest plan you'd use without the promo, for example an MVNO. See MVNO vs major carrier.
- Add the phone's outright price to the cheaper plan's total.
- Compare the two totals. Include taxes and fees. See taxes included vs extra.
Often the outright-plus-MVNO route wins, even with a flagship phone, especially over a long term.
Manufacturer financing alternatives
Apple, Samsung and Google offer their own financing programs through partner lenders. The phones are typically unlocked and not tied to a carrier plan. Terms and credit requirements vary, and missed payments can affect credit. It's a middle ground between carrier deals and paying cash.
Tips to avoid getting stuck
- Read the promotion terms: required plan, number of months, what cancels the credits.
- Screenshot the offer and save your order confirmation.
- Check that credits appear on your first few bills.
- Don't upgrade early without calculating the lost credits.
- Protect the phone. You'll owe the balance even if it breaks. See case vs insurance math.
Upgrade programs
Some carriers market upgrade programs that let you trade in your financed phone early for a new one, as long as you stay on an eligible plan and meet conditions. These can be convenient if you always want the latest phone, but they typically keep you on a premium plan and a continuous device payment. Before joining one, calculate how much you'd pay over several years compared with keeping a phone longer or buying outright.
If you lose or break a financed phone
You still owe the device balance if a financed phone is lost, stolen or broken. Insurance or a protection plan covers repairs and replacements for a deductible, but adds a monthly fee. A good case and screen protector prevent most damage for far less. See case vs insurance math and AppleCare vs carrier insurance.
Financing and credit
Carrier device payment plans involve a credit check, and missed payments can lead to collections that affect your credit. If you're unsure about keeping up with payments for three years, buying a cheaper phone outright or buying refurbished avoids that risk entirely. See plans with no credit check.
Phones worth buying outright
1. Google Pixel 9a
$$Best for: Skipping financing without sacrificing quality
An unlocked mid-range phone at a price many people can pay outright, which leaves you free to choose any plan.
What we like
- Unlocked
- Long updates
Watch out for
- Not a flagship
2. Apple iPhone 16e
$$Best for: iPhone users who want flexibility
Apple's lower-cost current iPhone, bought unlocked from Apple. No carrier lock or plan requirement.
What we like
- Unlocked from Apple
- Long iOS support
Watch out for
- eSIM-only in U.S.
3. Refurbished flagship (renewed)
$$Best for: Flagship features without flagship financing
A certified refurbished or renewed recent flagship can cost far less than new, with a warranty, and it's unlocked. See best refurbished retailers.
What we like
- Big savings
- Unlocked
Watch out for
- Check battery health and warranty
Frequently asked questions
Are carrier free phone deals really free?
Usually they're bill credits spread over 24–36 months that offset the phone's installments. You get the full value only if you stay for the whole term on the required plan.
What happens if I switch carriers during a device payment plan?
The remaining device balance becomes due, and remaining bill credits stop.
Do all carriers offer 36-month plans?
Verizon and AT&T have offered 36-month device payments for years, and T-Mobile began offering 36-month installments in late 2025.
Is it cheaper to buy a phone outright?
Often, when combined with a cheaper plan such as an MVNO. Calculate the total cost over the promotion term.
Can I unlock a phone that's on a payment plan?
Generally not until it's paid off, except for deployed military.