The true cost of a phone includes plan payments and device financing. Postpaid plans average $100 per month for two lines; prepaid around $40 per line. Premium smartphones add $20–$45 per month for 24–36 months. Always sum plan and device costs for the real price.
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The true cost of a phone includes plan payments and device financing. Postpaid plans average $100 per month for two lines; prepaid around $40 per line. Premium smartphones add $20–$45 per month for 24–36 months. Always sum plan and device costs for the real price.
Many shoppers focus only on the monthly plan and overlook the device installment or subsidy. According to the FCC’s 2024 Mobile Wireless Competition Report, the average revenue per user (ARPU) for postpaid services was about $55 per month, but that figure excludes device payments. When you add a premium smartphone installment, the monthly outlay can easily exceed $85 for a single line. Prepaid plans, which typically require you to bring your own phone, often cost $35–$50 per month with no long-term commitment.
Prepaid vs. Postpaid: What’s the Difference?
Postpaid plans bill you at the end of each month and often include device subsidies or installment options. Prepaid plans require upfront payment and generally offer lower monthly rates. The choice affects both your monthly bill and your upfront cost.
- Postpaid: Higher monthly cost, but may include device financing with no interest. Two-line plans frequently start around $90–$110 total. Credit checks are required.
- Prepaid: Lower monthly cost, usually $35–$50 per line for unlimited data. No credit check, but you must buy or bring your own phone. Data speeds may be throttled after a certain threshold.
- Hybrid options: Some budget providers offer prepaid with optional device financing, but interest may apply.
Device Financing and Subsidies
Most major carriers now offer installment plans for new phones, typically 24 or 36 months with 0% APR. A premium smartphone priced at $800 would cost about $33 per month over 24 months. Older models or budget phones may cost $10–$20 per month. Some providers offer trade-in credits that reduce the installment amount, but these credits usually require a premium plan.
Subsidies (the old two-year contract model) have largely disappeared. Today, financing is the norm. Always check the total device cost, including any down payment, plus the plan cost over the contract term.
Hidden Taxes and Fees
Your monthly bill includes more than the plan price. Federal, state, and local taxes plus regulatory fees can add 15–25% to the base plan cost. According to the Tax Foundation, combined state and local wireless taxes averaged 18.2% in 2024, ranging from 7.5% to over 30% depending on your location.
| Fee Type | Typical Amount |
|---|---|
| Federal Universal Service Fund | ~5–10% of interstate revenue |
| State & local sales tax | Varies (avg 8–10%) |
| E911 fee | $0.50–$3 per line/month |
| Regulatory recovery fee | $1–$3 per line/month |
Prepaid plans often have lower surcharges because many states exempt them from certain taxes, but always read the fine print before signing up.
How to Calculate Total Cost of Ownership
To compare plans, add up all costs over a typical 24-month period: monthly plan charges, device installment (or upfront cost), taxes and fees, activation fees, and any add-ons like insurance. Divide by 24 to get a true monthly comparison.
- Write down the plan price per month.
- Add device installment or divide the upfront phone cost by 24.
- Add estimated taxes and fees: multiply plan price by 0.18 (or use your local rate).
- Include any activation or upgrade fees ($20–$40 one-time).
- Sum and compare.
For example, a $80 postpaid plan with a $35 device installment and 18% taxes gives a monthly total of about $128. A $45 prepaid plan with a fully paid phone (no installments) and 10% taxes costs about $50 per month. The difference over two years can exceed $1,800.