By Compare The Networks editorial team. Published 2026-10-06. Content reviewed 2026-10-06.

Business Mobile Quotes: What Should You Compare?

Two business mobile quotes can look similar and still commit your company to very different costs. One may separate the phone from the airtime. Another may bundle them together. A third may quote a promotional rate that applies for only part of the agreement.

The useful comparison is the full commitment for the same business requirements. Start with a short specification, ask each supplier to price it, then put the answers in a single table. That makes differences visible before anyone signs.

Give every supplier the same brief

List the lines you need now, the phones you want to keep, and the staff who need replacements. Include the postcodes where people actually work, typical data use, overseas destinations and the numbers you intend to retain.

Avoid a brief that simply says “unlimited everything”. It leaves too much room for interpretation. Specify whether staff need UK calls, international calls from the UK, roaming, laptop tethering or some combination. Ask how each requirement is treated on the proposed plan.

Use a comparison table

Keep the original quote alongside this table. A verbal explanation is useful, but the written agreement is what you need to check when the details differ.

Compare the cost across the full term

Ask for a payment schedule covering the whole minimum commitment. Add the recurring payments, initial charges and any separate device instalments. Record optional services separately so you can compare the same package across suppliers.

Check whether the quoted figures include VAT. Mixing a VAT-inclusive consumer price with an excluding-VAT business price creates a misleading comparison. Use the same basis throughout, and ask your accountant about any VAT recovery relevant to your company.

An introductory offer deserves its own line in the calculation. Find out when it ends, what the later charge will be and whether any conditions apply. Do the same for a proposed credit against an existing contract: record how it is paid and what happens if the new agreement ends early.

Check the places that matter

Use Ofcom's coverage checker as an initial screen, then test the actual workplace where practical. Coverage predictions can differ from the connection people experience.

A reception desk, basement stockroom and upstairs office may give different results. Ask staff which rooms cause problems and include home-working locations and regular customer sites in the assessment. A national coverage claim cannot answer those local questions.

Read the agreements as separate commitments

If the proposal contains airtime, a phone payment agreement and an additional service, check each one. Ask whether they end together and what remains payable if one component changes. Do not assume replacing a SIM settles a device balance.

For a growing team, ask how a new line affects the existing renewal dates. For a seasonal business, ask what happens to a line that is no longer needed. Compare those written answers with your staffing plans before choosing the term.

Questions to send before signing

• What will the business pay in each part of the minimum term?
• Which charges are outside the quoted allowance?
• Who is responsible for the number transfer and billing queries?
• What happens if a phone needs replacing before the agreement ends?
• What written terms apply if the business needs fewer lines?
• Where are the proposed coverage and roaming conditions documented?

A useful quote should let you answer these questions without guessing. If a material point remains unclear, ask for a revised written proposal before committing.

Prepare your comparison

Keep your latest bills, line list and workplace postcodes together. Use the business mobile comparison to frame the request, then compare the resulting proposals against the same brief.