How Much Does Business Mobile Cost in the UK?

The cost of a business mobile in the UK depends on how many lines you need, how much data each user gets, whether a handset is included, and your contract length. There is no single sticker price — a SIM-only line with 30-50GB of data on a 24-month contract sits at one end, business VoIP and handset contracts at the other. The only way to know your number is a tailored quote.

Actual pricing varies by network, data allowance, contract length (all business contracts are minimum 24 months) and how many lines you buy. Networks discount aggressively on multi-line accounts, so the rate for 20 lines is rarely the same as 20 times a published single-line price.

At Compare The Networks, we price check EE, Vodafone, O2 and Three every month and negotiate directly with their business teams to find your best deal. Business pricing is quoted ex VAT (standard in the UK, and reclaimable if you are VAT-registered).

Want your exact price? We compare EE, Vodafone, O2 and Three against your requirements and come back with the best deal. Get a free quote.

What You Are Paying For

A business mobile package can include any mix of the following. Which ones you need — and how you combine them — is what drives your monthly cost.

Business mobile SIM (standard). A SIM-only line, typically with 30-50GB of data on a 24-month contract. The lowest-cost option when you already have handsets.
Business VoIP line. A desk phone or softphone with unlimited UK calls, replacing a traditional landline.
Business landline. An analogue/PSTN or digital voice line.
Business mobile handset contract. A SIM bundled with a phone — from mid-tier Samsung/iPhone models up to iPhone Pro and Samsung Ultra flagships — paid off over the contract.
Unlimited data SIM. For heavy users who want no bill shock; Three and EE both offer these, with EE priced for premium coverage and business support.

Because every business mixes these differently, the honest headline figure is: it depends. Get a free quote and we will confirm exact pricing.

Business Mobile SIM-Only Cost by Network

SIM-only is usually the cheapest way to run business mobiles, on a 24-month contract, across data tiers from 5-10GB up to unlimited.

Three is consistently the lowest-cost network on unlimited data, and the cheapest published network overall. EE is typically the most expensive but has the widest coverage. Vodafone and O2 sit in the middle. On multi-line deals of 5+ SIMs, all networks typically knock 15-25% off their standard rates, so the more lines you add, the lower your per-line cost.

The best network for you depends on the balance between coverage and price at your chosen data tier — which is exactly what a quote settles.

Compare all four networks in one go. We will find the cheapest SIM-only deal for your data needs. Get a free quote.

Business Mobile Handset Contract Cost

A handset contract bundles the device cost with airtime over a 24-month term. Options run from entry-level Android and Google Pixel through mid-range Samsung Galaxy and iPhone models up to the iPhone Pro and Samsung Galaxy S25 Ultra flagships, paired with data tiers from 10GB to 100GB.

Including a handset costs more per month than the equivalent SIM-only plan, and flagship devices cost more than mid-range ones. Whether that is worth it versus buying the handset outright and taking SIM-only depends on your cash flow and how long you keep devices.

For more, see best business iPhone deals and best Samsung phones for business.

Not sure whether to bundle a handset or go SIM-only? We will price both and show you the difference. Get a free quote.

Business VoIP Cost (UK, Ex VAT)

VoIP (voice over IP) replaces traditional landlines with cloud-based calling. Packages range from a starter softphone-only licence with unlimited UK calls, through a standard tier adding a desk phone and call recording, up to premium plans with contact centre features, CRM integration and inclusive international calling.

Desk phones can be rented per handset on top of the user licence, or purchased outright. The right tier depends on how your team makes and takes calls.

Read our best business phone system UK guide for the full comparison, or get a free quote for VoIP pricing tailored to your team.

Business Landline Cost

With the PSTN switch-off completing in 2027, most new business landline services are now delivered as digital voice (IP-based) over your internet connection. A single digital voice line is the most common choice for small businesses, while multi-line packages add features such as hunt groups and voicemail-to-email. Legacy analogue lines are still available ahead of the switch-off but are being phased out.

Moving off analogue before the 2027 switch-off? We will quote digital voice for your business. Get a free quote.

What Drives Business Mobile Cost?

Five factors determine what you actually pay:

Data allowance. The single biggest lever. Lower-data SIMs (5-10GB) are significantly cheaper than unlimited.
Handset included or SIM-only. Including a handset adds to the monthly cost, more so for flagship devices than mid-range.
Number of lines. Multi-line discounts kick in at 5+ lines. At 20+ lines, expect a further reduction on published rates.
Contract length. All business mobile is minimum 24 months. Longer terms (rare, usually 36-month enterprise deals) can reduce monthly cost further.
Network. Three is consistently cheapest; EE consistently most expensive. Vodafone and O2 sit in the middle.

Hidden Costs to Watch

Published prices do not tell the whole story. Watch for:

Annual price rises. Most UK business mobile contracts now include annual CPI + 3.9% increases, applied every April.
Out-of-bundle charges. Premium numbers (09, 118), international calls and roaming outside inclusive zones all add up.
Early termination fees. If you leave mid-contract, you pay the remaining months. Always factor this in when switching.
Device insurance. An optional add-on per device. Often cheaper to self-insure for large fleets.
Activation and delivery fees. Some providers charge per SIM activation. Any comparison quote should always include these.

See business mobile bill too high for more on common billing surprises.

How Your Total Cost Adds Up

Your monthly total is simply the sum of every line, licence and handset across your team, minus any multi-line discount. A small business might run a handful of SIM-only lines with 30GB each. A larger business often mixes handset contracts for customer-facing staff with SIM-only unlimited lines for heavy data users, and adds VoIP licences for office phones.

Because the mix is different for every business, a published "example bill" rarely matches what you would actually pay. We build the real number from your line count, data per user and handset choices.

See our business mobile cost calculator for a rough estimate, or get a free quote for an exact one.

How to Reduce Your UK Business Mobile Cost

Right-size data per user. Most businesses over-buy data. Check 12 months of usage before renewing.
Get 3+ competing quotes. Never renew with your current provider without a comparison.
Negotiate multi-line discounts. More lines unlock bigger reductions on published rates.
Bundle services. Buying mobile + VoIP + broadband from one supplier often saves money versus buying separately.
Time your switch. End of tax year (April) and end of calendar year (December) are when networks push deals hardest.

For a free comparison across EE, Vodafone, O2 and Three, get a quote here.

Frequently Asked Questions

How much does business mobile cost per user in the UK?

It depends on your data allowance, whether a handset is included and how many lines you buy. A SIM-only line with 30-50GB of data on a 24-month contract is the lowest-cost option; adding a handset increases the monthly cost. The only accurate figure is a tailored quote.

Are UK business mobile prices ex VAT or inc VAT?

All UK business mobile pricing is quoted ex VAT (20%). VAT-registered businesses can reclaim the VAT on business mobile bills. The consumer prices you see advertised on the same networks are typically inc VAT — do not compare them directly.

How much does business VoIP cost per user?

It depends on the tier. A starter softphone licence with unlimited UK calls is the cheapest; a standard tier adds a desk phone and call recording; premium contact centre plans cost more. We will quote VoIP against how your team actually uses calls.

How much does a business landline cost in the UK in 2026?

A single business landline is now usually delivered as digital voice over your broadband. Analogue/PSTN lines are being phased out by the 2027 switch-off, so most new installs are digital voice. Get a quote for pricing on your setup.

Is unlimited business mobile data worth the cost?

For teams using mobile hotspots, video calls, cloud sync or field apps with photo/video uploads, yes — unlimited eliminates bill shock. For office-based staff on Wi-Fi most of the day, a 30-50GB plan usually covers them for less per line.

Do UK business mobile contracts include annual price rises?

Most do. The standard is CPI inflation + 3.9% applied every April, which has been high in recent years. Always check the price-rise clause before signing and budget for 24 months of increases, not the headline month-1 price.

How long is a typical UK business mobile contract?

All major UK networks (EE, Vodafone, O2, Three) require a minimum 24-month business contract. Shorter rolling and 12-month business deals are not standard — if you see one, read the terms carefully, as it usually has enterprise-account caveats.

What is the cheapest UK business mobile network?

Three is consistently the cheapest published network, especially for unlimited data SIMs. For lower data tiers, all four networks are close to each other — network choice is usually driven more by coverage than price in that tier. A quote confirms the cheapest for your needs.

Do I pay extra for a handset on a business mobile contract?

Yes — a handset contract costs more per month than the equivalent SIM-only plan, because you are paying off the device over 24 months. Always compare the total cost versus buying the handset outright and taking SIM-only.

Can I reclaim VAT on business mobile bills?

Yes, if you are VAT-registered. All standard business mobile services qualify as a business expense. If staff also use the phone for personal calls, HMRC guidance allows full VAT reclaim if the primary use is business, though some accountants apply a split. See our business mobile tax guide for details.

Get a Price Comparison for Your Exact Setup

Every business is different. The only way to get accurate pricing is to compare real quotes from EE, Vodafone, O2 and Three against your specific requirements — user count, data per user, handset preference, and roaming needs.

Get a free UK business mobile quote. Takes two minutes, no obligation.

Compare The Networks is a trading name of Xtra Phones UK Ltd, a UK-based comparison service. All pricing is quoted ex VAT. Actual contract pricing depends on line count, data requirements, and negotiation.

How Much Does Business Mobile Cost in the UK?