A mobile telephone is a portable device for voice calls, messaging, and data. In 2026, the average monthly bill for a single line is $142 according to the Consumer Expenditure Survey. This includes plan costs, taxes, and fees.
Ready to Compare Plans?
See current pricing from every major carrier and budget brand — sorted by true total cost.
Compare Plans →Free to compare · No credit check to browse · Affiliate-supportedDefinition and Costs
A mobile telephone is a portable electronic device used for voice calls, text messaging, and internet access. In 2026, the average monthly cost for a mobile telephone service in the US is $142 per line, according to the Consumer Expenditure Survey. This figure includes the plan price, taxes, surcharges, and equipment fees. While the device itself is a one-time purchase, the ongoing service cost is the primary financial commitment. Understanding what drives that monthly number helps you make informed decisions.
Prepaid vs. Postpaid
Mobile telephone plans generally fall into two categories: prepaid and postpaid. Prepaid plans require you to pay upfront for a month of service, while postpaid plans bill you after usage. According to the FCC, the average prepaid plan costs $40 per month, while postpaid plans average $80 per month for a single line. However, postpaid plans often include device financing, which can add $20–$45 per month. The table below highlights key differences.
| Feature | Prepaid | Postpaid |
|---|---|---|
| Monthly cost (average) | $40 | $80 |
| Device financing | Rarely offered | Commonly available |
| Credit check required | No | Yes |
| Data throttling | May occur after limit | Often deprioritized after cap |
Budget providers typically offer prepaid plans, while major national carriers emphasize postpaid bundles. Your choice affects total annual spending by hundreds of dollars.
Taxes and Fees
Taxes and fees add a substantial amount to your mobile telephone bill. The Tax Foundation finds that the average combined state and local tax rate on wireless services is 17%, compared to just 7% for general sales tax. This includes federal excise tax, state sales taxes, universal service fund fees, and local surcharges. For a $80 postpaid plan, that’s an extra $13.60 per month. Over a year, taxes and fees alone can exceed $160. Prepaid plans often have lower taxes because they are taxed at the point of sale rather than monthly.
- Federal excise tax: 3% on postpaid, not on prepaid
- State sales tax: varies from 0% to 10%
- Universal Service Fund: up to 6% of interstate revenue
- Local 911 fees: typically $0.50–$1.50 per line
How to Choose a Plan
Selecting the right mobile telephone plan depends on your usage patterns and budget. First, estimate your monthly data needs: light users (under 2 GB) can find plans for $15–$25 from budget providers, while heavy users (over 20 GB) may pay $50–$70. Second, decide between prepaid and postpaid based on device financing needs. If you upgrade phones every two years, postpaid may be more convenient despite higher monthly costs. Third, check coverage maps from major carriers and budget providers in your area. Finally, calculate the total cost including taxes and fees. Use the average figures above to estimate your annual spend.
Future of Mobile Telephone Costs
By 2026, mobile telephone costs are expected to rise modestly due to inflation and network investments. The BLS projects that wireless service prices will increase by 2–3% annually. However, competition from budget providers and the growth of eSIM technology may keep entry-level prices stable. The average bill may reach $150 by 2027. Understanding the components of your bill—plan, equipment, taxes, fees—remains the best way to control spending.