How to compare phone service quotes (taxes, fees and seats)

Two phone quotes rarely line up. One shows a price per user. Another lists phones, numbers and calling separately. One includes taxes, and the other leaves them for the invoice. This guide shows you how to turn any quote into one number you can compare: the all-in monthly cost.

Start with the all-in monthly number

The all-in monthly number is what you’ll actually pay each month once service is running. It includes:

• every recurring license, for staff and for shared phones;
• phone numbers, voicemail, fax and any add-ons;
• expected calling charges, if the plan charges for usage;
• the provider’s own fees;
• government taxes and fees.

Keep one-time costs (phones, installation, moving your numbers) in a separate column. Then you can see both the monthly cost and the cost over the full contract.

Tip: Ask each provider for a sample invoice for your setup, not just a quote. Taxes and fees often show up only on the invoice.

The 7 questions to ask about any phone quote

1. Are taxes and government fees included in the price? If not, roughly what percentage of the bill do they add?
2. Are there per-line fees with names like “regulatory recovery” or “E911 service”? How much are they per line?
3. Does every classroom or common-area phone need a full license (a “seat”)?
4. What’s the contract length? Does it renew on its own, and is there an early termination fee?
5. Who gets support: every user, or your IT team? How fast, and from whom?
6. How are 911 locations handled for each room and building, and what does that cost?
7. Are there costs for moving your numbers (porting), installation, or hardware that only works with one provider?

Write the answers down next to each quote. Pay special attention to questions 1, 2 and 3. They cover costs that don’t always appear in the headline price.

How federal and state fees work

Most phone bills include charges that aren’t part of the advertised price. Some are set by the government. Others are set by the provider. It helps to know which is which.

The federal Universal Service Fund (USF) charge

Phone companies pay into the federal Universal Service Fund (USF). The FCC (Federal Communications Commission) lets providers pass that cost on to you as a line on your bill, but doesn’t require them to (FCC, as of Oct 2026).

• The rate changes every quarter. It’s called the contribution factor. For October through December 2026, it’s 42.0% (USAC, as of Oct 2026).
• It applies only to the interstate part of your charges. For this quarter, a provider’s USF line can’t be more than 42.0% of the interstate telecommunications charges on your bill (FCC DA 26-946, as of Oct 2026).
• For internet-based phone service (VoIP, or Voice over Internet Protocol), the FCC lets providers treat 64.9% of their revenue as interstate. A provider can instead use its actual call data or a traffic study (FCC Form 499-A instructions, as of Oct 2026).

For a provider using the 64.9% figure, that means the USF line can add up to about 27% (42.0% × 64.9%) of the charges it applies to this quarter. That’s a ceiling, not a typical amount. Ask each provider which charges they apply USF to.

California per-line fees

California adds flat monthly fees for each line:

That’s about $1.51 per line each month. The 911 and 988 amounts are reset for each calendar year, so check them again in January.

Because these fees are per line, the way a provider counts “lines” matters. Ask each provider whether they count phone numbers, phones, or simultaneous calls for each fee. Each fee is multiplied by that count, so the answer can change your total a lot.

City taxes

Some California cities also charge a utility users’ tax on phone service. Rules vary by city. For example, Hayward’s tax is 5.5% and covers VoIP, and the city says public schools don’t have to pay it (City of Hayward, as of Oct 2026). Check your own city’s rules, especially if you’re a public agency.

Fees the provider sets

Some quotes include charges with official-sounding names, such as “Regulatory Recovery Fee,” “Administrative Cost Recovery Fee” or “E911 Service Fee.” A fee’s name alone doesn’t tell you who sets it. For every line on the quote or sample invoice, ask:

• Is this a government tax or surcharge, passed through at cost?
• Or is it a charge your company sets?
• How much is it per line, and does it apply to every phone and number?

Note: There’s nothing wrong with a provider charging its own fees. What matters is that you can see them and include them in your comparison.

Seats vs devices

For schools, this is often where quotes differ the most from each other.

• Per-seat pricing charges for each licensed user. Phones that aren’t tied to one person (classrooms, hallways, break rooms, the lobby) may need a full seat, a lower-priced common-area license, or nothing extra. Every provider handles this differently.
• Per-device pricing charges for each phone. You then add numbers, voicemail and other features only where you need them.

Neither model is right for everyone. A small office where everyone has a desk phone may see little difference. A school with dozens of classroom phones may see a big one. Per-line fees and per-line surcharges also multiply with every line you add.

Here’s a simple way to build each quote’s monthly total with your own numbers:

Important: Compare quotes on the same terms. An annual-commitment price and a month-to-month price aren’t the same offer. Note any yearly price increases, too.

Before you decide: a quick checklist

• Every quote uses the same billing terms (month-to-month or annual).
• Every phone is counted, including classroom and common-area phones.
• Taxes and government fees are shown on a sample invoice or estimated.
• Every per-line fee is named and priced.
• One-time costs are listed: phones, installation and porting.
• Contract length, renewal terms and any early termination fee are written down.
• 911 locations are priced for each building, and each room if you need that.
• Support is clear: who can call, how fast, and who answers.

For a longer walkthrough, see the switching guide chapter How to compare quotes fairly. To do the math, the quote comparison tool uses only the numbers you enter.