Family Phone Plans: Compare by Household Size (October 2026 Edition)

Best Family Phone Plan by Household Size

Plenty of family plan lists stop at four lines. Households don’t. Here’s our pick for each situation, with the total you’d pay; the guide to the best family phone plan goes deeper on the overall ranking.

Awards reflect our editorial evaluation against the criteria in the methodology section. The “Best Overall” pick is supported by US Mobile’s Consumer Reports Top Rated designation. See the full ratings. Consumer Reports does not endorse products or services.

How Family Pricing Changes With Each Line

Every carrier answers the same question differently: what does one more person cost? There are three basic answers, plus a fourth thing that rarely makes the headline price.

Step-down pricing: the first line pays for the rest

Postpaid carriers price the first line high and knock the per-line rate down as you add people. AT&T Extra 2.0 is $70/mo for one line with AutoPay, $120 for two, $150 for three and $160 for four, which works out to $40 a line. Verizon Unlimited Plus goes from $80/mo for one line to $180 for four ($45 a line), also with AutoPay. Cricket, Metro, Boost and Google Fi step down too.

Here’s the part that’s easy to miss: the discount bottoms out at four. A fifth line adds $40 on AT&T Extra 2.0 ($200 for five) and $45 on Verizon Unlimited Plus ($225), so the family rate stops improving right when a big family needs it. And because the per-line rate depends on the line count, dropping a line can raise what everyone else pays.

T-Mobile’s free third line

T-Mobile’s 2.0 plans price three lines the same as two. Three lines of Experience More 2.0 are $140/mo with AutoPay, exactly what two cost, and Essentials 2.0 is $90/mo at two or three lines. The catch is how it’s paid: “3rd line free” comes as monthly bill credits that stop if you cancel any line, and the Experience plans need qualifying credit.

Flat pricing: every line costs the same

US Mobile doesn’t discount extra lines on its Unlimited plans, which sounds like a drawback until you see where the price starts. Unlimited Starter is $25 a line whether you have one line or five, taxes and fees included; Unlimited Premium is $44 a line. Add a teenager and the bill goes up $25. Someone moves out and takes their number elsewhere? It drops $25, and nobody else’s line changes.

Shared data: one bucket, cheap extra lines

If your household lives on Wi-Fi, shared data can beat unlimited by a mile. US Mobile’s Light and By the Gig plans put every line on one pool of data, and each extra line adds $8: five lines sharing 10GB on By the Gig 10GB are $52/mo, taxes included. The trade-off is obvious (one binge-watcher drains it for everybody), so it suits first phones and grandparents better than streaming teenagers.

Fees multiply too

Per-line fees rarely make the headline price, and they scale with your family. T-Mobile adds a $5.49-a-line fee plus government surcharges, and a one-time $35-a-line device connection charge. AT&T charges a fee of up to $4.99 a line and $35 a line to activate. Verizon charges $40 a line at activation and a $3.78-a-line administrative charge that rises to $4.69 on November 15, 2026, and it says surcharges can add 16% to 58% to your monthly charges. Starting four new Verizon lines costs $160 in activation fees alone. US Mobile’s Unlimited, Light and By the Gig prices include taxes and fees.

Family Plan Comparison Chart: 1 to 5 Lines

Every unlimited family plan we checked, at every household size, in one chart. Each figure is the total monthly price for all lines as the carrier lists it, and the last column tells you whether that number needs AutoPay and whether taxes come on top. US Mobile is first, then the Big 3, then everyone else.

T-Mobile’s 3-line Essentials 2.0 price and its 3 to 5 line Experience 2.0 prices include “3rd line free” bill credits. Verizon’s prices leave out a $10 monthly account credit it adds for 36 months at 3 or more lines with a new smartphone line, and AT&T’s leave out a limited-time extra $5 off per new line at 4 or more lines. Metro doesn’t list a 5-line price. US Mobile Unlimited totals are the one-line price times the number of lines, because it has no multi-line discount.

Family Phone Plans by Household Size

The chart is the full picture. Below, each household size gets its own shortlist of the cheapest unlimited plans at that line count: US Mobile first, then everyone else from the lowest total to the highest, with the catch right next to the price. These are entry plans; the premium tiers are in the chart above.

Best Family Phone Plans for 2 Lines

Two lines is where step-down pricing helps least. AT&T Value 2.0 is still $45 a line at two with AutoPay, and Verizon Unlimited Welcome $55 a line, both before taxes. US Mobile Unlimited Starter stays at $25 a line, $50/mo for two with taxes included, the lowest month-to-month two-line unlimited total in this comparison. Paying yearly, two Unlimited Flex lines are $420 for the year ($35/mo), if you’re both fine with speeds that may slow after 10GB a month.

Over 55? T-Mobile Essentials Choice 55+ 2.0 is $60/mo for two lines with AutoPay (you must be 55 or older and verify it within 45 days, and it isn’t offered above two lines), and Consumer Cellular Unlimited 50+ is $60/mo for two lines with AutoPay if the account holder is 50 or older. Taxes and fees are extra on both. Our best cell phone plans for 2 lines guide and the senior phone plans roundup cover couples in more detail.

Best Family Phone Plans for 3 Lines

Three lines is where things get odd, in a good way. Optimum Unlimited charges $60/mo for three lines, the same as for two, and T-Mobile Essentials 2.0 pulls the same trick at $90/mo with AutoPay through its “3rd line free” credits. US Mobile Unlimited Starter is $75/mo for three, taxes included. Optimum’s $60 is lower on paper, but taxes are extra, it’s priced on good credit and each line gets 5GB of hotspot against Starter’s 20GB.

Adding a kid as the third line? The phone plans for kids guide covers how much data a child needs and parental controls before you hand over the phone.

Best Family Phone Plans for 4 Lines

Four lines is the classic family plan, and it’s the most crowded price we found. Six plans land on exactly $100/mo for four unlimited lines: US Mobile Unlimited Starter, Cricket Select Unlimited (with AutoPay), Metro’s web-only Unlimited 5G Data, Google Fi Unlimited Standard, Straight Talk Silver Unlimited and Simple Mobile Unlimited World. Only the first three include taxes. Below $100, Optimum Unlimited is $80/mo and Google Fi Unlimited Essentials $90/mo, both before taxes, and Total Wireless Total Starter is $95/mo with AutoPay, taxes included.

Taxes matter at this price. Google Fi says its taxes and surcharges normally run 10 to 20 percent, which would put four Unlimited Essentials lines at roughly $99 to $108 a month (our estimate, not a Fi price), with no hotspot on any of them. Starter’s $100 is the number on the bill, and each line keeps 20GB of hotspot.

Heavier users should look at the premium tier. Four lines of US Mobile Unlimited Premium are $176/mo with taxes included, against $215/mo for T-Mobile Experience Beyond 2.0, $240/mo for Verizon Unlimited Ultimate and $280/mo for AT&T Elite 2.0, all three with AutoPay and before taxes.

Best Family Phone Plans for 5 Lines

At five lines the step-down discounts run out of steam and the gaps narrow. T-Mobile Essentials 2.0 is $120/mo with AutoPay, $5 under US Mobile Unlimited Starter’s $125, but T-Mobile’s $5.49-a-line fee adds $27.45 before taxes and government surcharges. Cricket Select Unlimited is also $120/mo with AutoPay and it does include taxes, so for a family of five that can live without hotspot (and with SD video), it’s the clearest case here of a plan that beats Starter with taxes counted. Optimum Unlimited lists five lines at $100/mo, before taxes, and Metro doesn’t list a five-line price.

What Other Carriers’ Family Prices Leave Out

A family price is only as good as its conditions. Here’s what each carrier attaches to the numbers in the chart.

T-Mobile

Essentials 2.0 has 50GB of premium data, hotspot at 3G speeds and no price guarantee, and T-Mobile lists FamilyMode for parental controls. Experience More 2.0 adds 60GB of hotspot, Netflix Standard with ads, Apple TV for $3/mo and a 5-Year Price Guarantee; Experience Beyond 2.0 adds Hulu and 250GB of hotspot. Essentials Saver 2.0 ($80/mo for two lines with AutoPay) only appears at one or two lines. Taxes, the $5.49-a-line fee, government surcharges (typically $0.08 to $4.57 a line) and a $35-a-line device connection charge are extra. See T-Mobile plans. Weighing it against Verizon? See T-Mobile vs Verizon.

Verizon

Unlimited Welcome falls to $30 a line at four lines with AutoPay, but it has no hotspot and deprioritized data. Unlimited Plus ($45 a line at four) has 30GB of hotspot and unlimited premium data; Unlimited Ultimate ($60 a line at four) has 200GB of full-speed hotspot, unlimited premium data and international use included. With a new smartphone line, Verizon also takes $10 a month off the account for 36 months at 3 or more lines; our prices leave that out. Fees: $40 a line to activate (waived for Verizon Loyalty enrollees), a $3.78-a-line administrative charge rising to $4.69 on November 15, 2026, and surcharges Verizon says can add 16% to 58%. Verizon also advertises a Simplicity Plan at $30 a line, but that’s the best case: it needs Auto Pay, paper-free billing and a switch from another carrier, and Verizon doesn’t print the full price. See Verizon plans.

AT&T

Value 2.0 drops to $30 a line at four lines with AutoPay, but each line gets only 5GB of high-speed data and 3GB of hotspot. Extra 2.0 ($40 a line at four) has 100GB of high-speed data and 50GB of hotspot; Premium 2.0 ($50 a line at four) has unlimited high-speed data and 100GB of hotspot; Elite 2.0 ($70 a line at four) has 250GB of hotspot. The AutoPay discount is $10 with a bank account or AT&T Points Plus Card but only $5 with a debit card, and a limited-time extra $5 off per new line applies at four or more lines (not in our prices). On top: taxes, a fee of up to $4.99 a line and $35 a line to activate. See AT&T plans.

Cricket Wireless

On AT&T’s network, with taxes and fees included. The advertised prices are with AutoPay and for new lines, every line on a multi-line account must be on the same plan, and activation costs $25 in Cricket stores. Select Unlimited has no hotspot unless you add it and limits video to SD. Smart Unlimited ($110/mo for four lines) has 15GB of hotspot, and Supreme Unlimited ($130/mo for four) has 50GB, HBO Max Basic with Ads and 150GB of cloud storage. See Cricket plans.

Metro by T-Mobile

Taxes and fees included, a 5-year price guarantee, and multi-line totals listed before the AutoPay discount. The web-only Unlimited 5G Data is $100/mo for four lines and may slow after 35GB when the network is busy; Unlimited Premium 5G Data is $140/mo for four, with 25GB of hotspot. Activating online is free, in a store it’s $25 a line. See Metro plans.

Boost Mobile

Boost takes $20 off the second and third lines, $40 off the fourth and $20 off each extra line up to 10, but only when every line is on Unlimited+ or Unlimited Premium. That makes four lines of Unlimited+ $120/mo with AutoPay (40GB of premium data) and four of Unlimited Premium $160/mo (50GB). Taxes and fees are extra on Unlimited Premium. See Boost plans.

Google Fi

Fi’s per-line price falls as you add people, and it charges no activation fee. Taxes and government surcharges are extra; Fi says they normally run 10 to 20 percent. Unlimited Essentials has 30GB of high-speed data per person and no hotspot; Unlimited Standard has 50GB, 25GB of hotspot and data, calls and texts in Canada and Mexico; Unlimited Premium has 100GB, 50GB of hotspot and 50GB of high-speed data in 200+ destinations. See Google Fi plans.

Total Wireless

On Verizon’s network with taxes and fees included and a 5-year price guarantee. Multi-line prices are with AutoPay, but the $5 AutoPay discount is one per account, not per line, and it starts in the second month. Total Starter has 10GB of hotspot, then 5 Mbps; Total All Access ($115/mo for four lines) has unlimited hotspot at up to 10 Mbps. See Total Wireless plans.

Straight Talk and Simple Mobile

Both add taxes and fees on top. Straight Talk Silver Unlimited is $100/mo for four lines ($25 each), and a fifth line takes it to $145; its AutoPay discount only lasts the first 3 months, so the chart uses the regular price. Simple Mobile Unlimited World makes the fourth line free when you add lines at $25 each, and it includes 20GB of hotspot. See Straight Talk plans or Simple Mobile plans.

Cable carriers: Spectrum, Xfinity and Optimum

Spectrum Mobile needs Spectrum Internet and AutoPay. Two Unlimited lines are $60/mo before taxes (for three to five lines, the carrier does not say), and new customers get the first line free for a year. Xfinity Mobile needs Xfinity Internet; Mobile Select is $30/mo for a line, also with the first line free for a year for new customers, but we didn’t record Xfinity’s multi-line totals this month, so check with Xfinity for a group. Optimum’s plan page doesn’t say Optimum Internet is required, and it advertises a $20 monthly internet credit when you add Mobile; prices are based on good credit and taxes are extra. See Spectrum Mobile plans, Xfinity Mobile plans or Optimum Mobile plans.

How Much a Family Can Save with US Mobile

Same-tier comparisons: entry unlimited against entry unlimited, premium against premium. Big 3 prices are their four-line AutoPay totals; US Mobile is the regular monthly rate for four lines, no promo code.

On plan prices alone, the entry-tier savings look modest: $5 to $20 a month. The fees are what change the picture.

What four lines really cost before taxes

Here’s the same entry tier with each carrier’s own per-line fee and start-up charge added. Taxes depend on your address, so they’re left out for everyone except US Mobile, whose price already includes them.

Over a year, four T-Mobile Essentials 2.0 lines come to $1,663.52 before taxes, $463.52 more than four Unlimited Starter lines paid monthly. Pay for Starter a year at a time and the gap grows to $583.52. With a promo, the US Mobile side is even lower in year one: new lines can pay $199 for the first year of Starter, then it renews at $270 a year.

See US Mobile plans.

Which Family Plan Fits Your Household?

• Two people: US Mobile Unlimited Starter, $50/mo for two lines with taxes included. More options in our best cell phone plans for 2 lines.
• Three or four, average data: Unlimited Starter at $75 or $100/mo, or Unlimited Flex at $630 or $840 for the year if everyone’s fine with speeds that may slow after 10GB a month.
• Mostly on Wi-Fi: By the Gig 10GB, $44/mo for four lines sharing 10GB, taxes included. Light shares 2GB for $34/mo at four lines.
• Heavy streaming or hotspot: US Mobile Unlimited Premium at $176/mo for four lines, or Verizon Unlimited Ultimate at $240/mo with AutoPay, before taxes, if you’d rather stay with a Big 3 carrier.
• You want streaming bundled: T-Mobile Experience More 2.0 ($170/mo for four lines with AutoPay) or Experience Beyond 2.0 ($215/mo), or Cricket Supreme Unlimited ($130/mo for four, taxes included) with HBO Max Basic with Ads.
• Five people: US Mobile Unlimited Starter at $125/mo, or Cricket Select Unlimited at $120/mo with AutoPay if nobody needs hotspot.
• You already pay for cable internet: Spectrum Mobile or Xfinity Mobile, which need their internet service, or Optimum Mobile.
• Kids or grandparents joining: see phone plans for kids and senior phone plans. On your own? Try best phone plans for one.

Want the wider market? See our best cell phone plans guide, the best unlimited data plan, best prepaid phone plans and cheap phone plans roundups, or the AT&T vs Verizon vs T-Mobile comparison.

How We Compared Family Phone Plans

US Mobile wrote this comparison, and it’s in it. Every price and allowance here was read on the carrier’s own plan pages or FCC Broadband Facts labels on October 20, 2026, and we saved screenshots of those pages. Multi-line prices are the totals each carrier lists for 2, 3, 4 and 5 lines; we didn’t build them ourselves, except for US Mobile Unlimited, which has no multi-line discount, so its totals are the one-line price times the number of lines. Where a carrier doesn’t publish something, we say “Carrier does not say” rather than guess.

For family plans, we weighted the total cost at each household size, how the bill changes when a line is added or dropped, what the family price depends on (AutoPay, bill credits, an internet bundle, age or credit), per-line fees and taxes, and the hotspot and high-speed data each line gets. The first-year table adds only published prices and fees; the Google Fi tax range is Fi’s own estimate applied to its price. Savings comparisons match tiers. We don’t rate network speed or coverage ourselves; for customer ratings, see Consumer Reports (Consumer Reports does not endorse products or services), and for speed and coverage, independent sources include Ookla’s Speedtest reports and Opensignal. The FCC’s wireless consumer guides explain your rights as a customer.

US Mobile plan details live on the plans page and the network coverage page. The previous edition is the August 2026 edition, and the main article is updated as prices change.