AT&T is taking up to $1,200 off the iPhone 18 Pro Max when you trade in an iPhone 14 or newer in any condition and buy the phone on installments. Apple's biggest Pro iPhone starts at $1,299, so that credit leaves roughly $100 to pay on the 256GB model, which works out to about $2.75/month over three years.
We track carrier iPhone deals every day, and a brand-new Pro Max for less than $3/month is a phenomenal price on the biggest Pro iPhone Apple makes. The strings attached are a trade-in, a 36-month installment plan, and a qualifying unlimited plan, and AT&T opens the deal to new and existing customers, so you can upgrade the line you already have without switching anything.
How to get the iPhone 18 Pro Max deal at AT&T
Trade in an iPhone 14 or newer, excluding the iPhone 16e, or any eligible smartphone worth at least $180, then add a line or upgrade on an eligible AT&T unlimited plan with a $1,200 minimum installment agreement. The phone runs about $36.08/month over 36 months, and $33.33/month in bill credits brings that down to roughly $2.75/month. The credit stays at $1,200 no matter which storage tier you pick, so the 2TB model at $2,499 still leaves about $36/month to pay.
AT&T doesn't care what shape your old iPhone is in, so the one with a spiderweb crack across the screen and a case held together by sheer hope counts just the same. That makes this a great new home for the phone that's been sitting in the junk drawer since the last round of upgrades.
Want AT&T coverage at a lower cost?
An MVNO is a smaller carrier that runs on one of the big networks, so these plans use the same AT&T network as this deal for a lot less money each month. The one trade-off is that this deal doesn't work on an MVNO plan, and MVNOs rarely have phone promos that come anywhere close to what AT&T offers. If you're happy to buy your phone outright or bring one you already own, an MVNO gets you AT&T coverage without the AT&T price tag. Here are two great options on AT&T's network:
The Pro Max is the iPhone for people who live on their phones
Apple's biggest Pro packs a 6.9-inch display, the A20 Pro chip with a next-generation vapor chamber for sustained performance, and a 48MP triple camera system with a variable aperture on the Fusion main camera. That's a lot of screen and camera for about $2.75/month, and 256GB of base storage gives you room for photos, apps, and downloads from day one.
Yes, the iPhone 18 Pro gets the same chip and comes out free with this same trade-in, but the extra $100 buys you a noticeably bigger screen, which is easily the best upgrade for anyone who reads, streams, and scrolls more than they'd like to admit. A 6.9-inch display also makes the nightly "just one more episode" in bed a whole lot more comfortable.
What to know before you grab the AT&T iPhone 18 Pro Max deal
AT&T pays the $1,200 as 36 monthly bill credits rather than an upfront discount, so the line needs to stay active for all three years to collect the whole thing. The deal works for new and existing AT&T customers alike, so upgrading the line you already have qualifies just like adding a new one. The qualifying plan sits above AT&T's entry unlimited tiers, so double-check which plan the offer names before you check out.
Three years sounds like a long stretch, but a Pro Max is built to go the distance, and the commitment is easy to live with when AT&T is already your carrier. The trade-in is the only real homework here, and plenty of families have an iPhone 14 or newer tucked away after a past upgrade.
Common questions about the AT&T iPhone 18 Pro Max deal
How much is the iPhone 18 Pro Max at AT&T with this deal?
The iPhone 18 Pro Max costs roughly $2.75/month at AT&T after up to $1,200 in bill credits on the 256GB model. That's about $99 total over 36 months, and it requires an eligible trade-in and a qualifying unlimited plan.
Which phones can I trade in for the AT&T iPhone 18 Pro Max deal?
AT&T's iPhone 18 Pro Max deal accepts an iPhone 14 or newer in any condition, excluding the iPhone 16e. Any other eligible smartphone with a trade-in value of at least $180 also qualifies for the offer.
Launch-season iPhone credits can change without much warning, so I'd lock in the Pro Max while AT&T is still taking $1,200 off.
Scott Houghton
Jr. Staff Writer
Thousands of cell phone plans unpacked. All the facts. No surprises.
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