Verizon is offering some existing customers an extra phone line that looks free, but only under tight conditions. If you’re eligible, you’ll see the offer inside the My Verizon app under the Offers section. If you already have a free line from Verizon, you're sitting this one out, unfortunately.
Overall, you're getting a 36-month credit that cancels out the base cost of an Unlimited Welcome line. You still pay taxes and fees every month, which are roughly $6–$10. After three years, the credits will stop, and the line becomes fully paid unless you cancel it yourself.
Here's how you can get a not-so-free line from Verizon
At a time when Verizon is already struggling with slowing subscriber growth, a free phone line seems to be their best lifeline currently. The Mobile Report shared an internal company document that confirmed the company's new offer. It revealed that you must already be on the Unlimited Welcome, Plus (postpaid), or Ultimate (postpaid) plans to be eligible.

You also must bring your own phone, which makes some sense. It's likely because the company doesn’t want to subsidize a device on a line that isn’t generating full revenue. Technically, if they let you finance a phone, they’d be paying twice. That is, once for the phone and once for the line credit.
Though controlled and temporary, it's a loss they won't want. Auto Pay, with paperless billing, are also part of the requirements. The promo requires in-store activation for many accounts and is not broadly self-serve online.

That said, having a free line gives you optional capacity with very low downside. Even if the line isn’t truly free forever, at least the cost during this promo period is limited to taxes and fees. It's significantly cheaper than adding a normal paid line. It’s useful as a backup phone, a secondary data line, or a temporary line for a family member.
You don't get credit if you have three lines
As aforementioned, Verizon applies monthly promo credits for 36 months (three years) on your free line. The credit amount depends on how many lines you already have, and it's broken down as follows:
- If you have 1 line and add a second one, you'll get $45 monthly credit.
- If you have 2 lines and add a third, you get $10 monthly credit.
- If you have 3 lines and add a fourth, you won't get any credit.
- If you have four or more lines and add one extra, you'll get $30 monthly credit.

You could say that these amounts are tied closely to how the multi-line plans are priced and where incentives actually change customer behavior. By the time you have three lines you're fairly locked in if you have three lines, and the per-line price has already dropped compared to a one- or two-line account.
Adding a fourth line doesn’t significantly change your likelihood of leaving, so it explains why the carrier has little reason to subsidize it. Giving a credit there would erase the remaining margin without improving retention much.
But if you hit four or more lines, accounts of that size are usually families or shared plans, and Verizon’s goal should be more on account expansion. Adding a fifth or sixth line means bringing in a new user, device, or use case that could later turn into real revenue. The credit will encourage growth.
Regardless these credits will eventually expire and the billing will return to the standard rate unless you actively cancel the line. The burden is on you to remember and act before your next charge. Three years is long enough for most people to mentally disconnect from anything. You'll want to set a reminder, just in case.