AT&T is offering free iPhone upgrades every three years to customers who commit to certain plans.

Get a New Phone Every Year with This Deal

For a limited time, customers who combine AT&T Wireless and AT&T Home Internet can get the Next Up Anytime feature for free for three years when purchasing a new, eligible smartphone.

The Next Up Anytime feature, which normally costs $10 per month, is available at no cost for bundled customers. This allows users to upgrade to the latest iPhone or other eligible smartphone every year for three years without additional fees.

To take advantage of this deal, current AT&T Wireless customers can add AT&T Home Internet (AT&T Fiber 300 Mbps or higher, or AT&T Internet Air) and buy or upgrade to a new smartphone. Existing AT&T Home Internet customers can add AT&T Wireless and get a new smartphone to receive the same annual upgrade benefit. New AT&T customers can sign up for both services and get a new phone to unlock the free yearly upgrades.

AT&T also includes its AT&T Guarantee with this offer, which automatically credits customers for a full day of service in the event of a network interruption.

Additional benefits of bundling include:

A 20% discount on either your wireless or home internet bill.

A switcher bonus of up to $800 per line (for up to 10 lines) when switching from another carrier.

AT&T Internet Backup, which automatically uses wireless data if home internet goes down, is included for bundled users.

Terms and conditions apply to this offer. To qualify for the free yearly upgrade, customers need: an eligible smartphone on an installment plan with the Next Up Anytime feature, an eligible wireless plan (starting at $75.99/month before discounts for AT&T Unlimited Starter), and eligible home internet (starting at $65 before discounts).

Customers must also trade in their current device, with at least one-third of the balance paid off. The free upgrade is provided through 36 monthly bill credits. After three years, the regular $10/month fee applies. Canceling Next Up Anytime will end the free credits and any promotional credits tied to the smartphone upgrade.

This promotion ends on October 9. The bundle offers yearly free upgrades and a 20% discount.

Additionally, "Iconic Phones," a book that explores the most iconic phones of the past 20 years, will be released this fall. The book features stories of over 20 devices and offers a journey through the mobile revolution. Sign up to receive an early-bird discount.