An old iPhone can leave a household three ways once iPhone 18 Pro arrives: traded in to Apple at checkout, traded in through a carrier, or sold privately. Apple’s own route pays instantly against the new purchase; a carrier route pays out over 24 to 36 months of bill credits; selling it yourself runs on no schedule Apple publishes at all, because Apple has no part in it.
The three routes are not interchangeable in timing, and pre-order day is when that stops being theoretical. Apple’s trade-in step sits inside the same checkout as the new iPhone, so choosing it, or skipping it, happens now rather than after the new phone arrives on September 18.
Key facts
| Route | When the money or credit lands | What Apple has published |
|---|---|---|
| Apple Trade In | Instantly, applied to the new purchase at checkout | $175 to $885 credit in the US, up to £455 in the UK, for eligible iPhones |
| Carrier trade-in | As monthly bill credits over 24 to 36 months | Tiers of $1,200, $930 and $350 exist only in Apple’s own footnotes |
| Selling it yourself | Whenever a buyer pays, on no fixed schedule | Apple has published nothing, because Apple is not involved |
Apple’s own route pays first
Apple’s own wording is that Trade In credit applies instantly. The number that lands is an estimate built from the questions answered during checkout, and Apple’s own description is that the device still has to be received and its condition verified before the estimate is confirmed. The published ceiling is $175 to $885 in the US and up to £455 in the UK for an iPhone 16 Pro or later; Apple does not publish a table of every model in between, and any per-model number circulating is a value recorded for that model, not a figure Apple prints.
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A carrier’s credit is a promise stretched over years
Apple’s own footnotes describe carrier trade-in credit of up to $1,200 through AT&T and T-Mobile, delivered as bill credits over 24 to 36 months rather than at the register. The $350, $930 and $1,200 tiers behind that headline number exist only inside Apple’s footnotes; neither carrier’s own site publishes its own version of those terms as of this writing. Verizon has published no iPhone 18 Pro trade-in offer at all, on Apple’s page or its own. A carrier route is a multi-year commitment to a plan and a device, not a single transaction, and the credit only fully materialises for someone who stays on that plan for the entire term.
| Carrier | What appears in Apple’s own footnotes | What the carrier’s own site publishes |
|---|---|---|
| AT&T | Up to $1,200, tiered to $930 and $350 by device and plan | No iPhone 18 Pro trade-in offer, as of this writing |
| T-Mobile | Up to $1,200, described as $150 to $1,200 by status and plan | Could not be verified independently, treated as unconfirmed |
| Verizon | No credit terms carried in Apple’s footnotes | No iPhone 18 Pro trade-in offer published |
Selling it yourself runs on no Apple clock
The third route sits entirely outside anything Apple tracks. There is no Apple page, no estimator and no published figure for what a device sells for privately, and this article does not estimate one. What is true by definition is that this route has no fixed timeline: money changes hands whenever a buyer is found, which could be the same day or considerably later, and nothing about it interacts with Apple’s pre-order checkout, its trade-in questionnaire or a carrier’s bill.
Why the timing difference decides the choice
Someone who wants the credit reflected against the $1,199 or $1,299 iPhone 18 Pro price this week has effectively one route: Apple’s own. A carrier credit only makes sense for someone already committing to that carrier’s plan for the next two or three years regardless of the phone, since the number is realised in instalments rather than at once. Selling privately trades a known, immediate published range for an unknown amount on an unknown schedule. None of the three is wrong; they answer different questions about when money is needed, not just how much.
What has not been confirmed
Apple has not published T-Mobile’s own trade-in terms independently of its own footnotes, has not published any Verizon iPhone 18 Pro trade-in figure, and has not published a resale value for any model through any channel. It has not stated whether the carrier tiers will change before iPhone 18 Pro ships on September 18, and it has not published what happens if a carrier credit ends early because a customer switches plans or carriers mid-term.
Pre-orders opened at 12:00 UTC today, September 12. Whichever route is chosen, the old iPhone still has to make it to its new owner, its carrier, or Apple, and only Apple’s own route settles anything before the new iPhone actually arrives.
