What does this tool do?
Advertised line prices rarely match the bill after extras and taxes. This calculator totals the per-line charges, add-ons and a tax rate, then projects the annual cost.
The Formula
Monthly total = (Plan price + Add-on per line) × Lines × (1 + Tax rate)Frequently Asked Questions
Is a family plan cheaper than separate lines?
Usually the per-line price falls as lines are added, but watch activation fees and shared-data overages. Compare the all-in total for the lines you actually need.
How much should I budget for taxes and fees?
Taxes and regulatory fees often add 10–20% on top of the advertised price, depending on location. Use your current bill to estimate the rate.