Compare Business SIM Only Deals UK April 2026 | From competitive rates/month
Compare The Networks is an OFCOM regulated, independent comparison service helping UK businesses find the best telecoms deals since 2008. We compare business SIM only deals from EE, Vodafone, O2 and Three so you can make an informed decision.
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Get a free quote tailored to your business, or keep reading to learn more.
About Business SIM Only Deals
We compare business SIM only deals from EE, Vodafone, O2 and Three. Whether you are looking for the cheapest option, the best coverage, or specific business features, we will show you what each network offers side by side.
How It Works
- Tell us what your business needs (number of lines, data usage, coverage requirements)
- We compare deals from all four major UK networks
- You choose the best option with no obligation
The entire process takes under 60 seconds to start and is completely free. We are OFCOM regulated and have been helping UK businesses since 2008.
Why Compare?
Most businesses overpay on their mobile contracts by 20 to 35 percent. The main reasons are auto renewed contracts at inflated rates, data plans that do not match actual usage, and hidden charges. Comparing all four networks side by side reveals whether you are getting good value or paying more than you need to.
| What We Check | Why It Matters |
|---|---|
| Coverage at your postcodes | The cheapest deal is useless with poor signal |
| Data vs actual usage | Right sizing prevents overpaying and overage charges |
| Contract terms | Length, price rises, exit fees all affect total cost |
| Multi line discounts | 5+ lines typically save 10 to 25 percent |
| Business features | Fleet management, MDM, roaming, support levels |
Frequently Asked Questions
What is a business SIM only deal?
A business SIM only deal provides a mobile plan without a handset. You receive a SIM card with a data, minutes and texts allowance on a business contract. Prices start from around approximately £11+VAT per month, and you can reclaim VAT on the cost. It is ideal if you already own a phone or want to keep your existing handset.
Can sole traders get business SIM only deals?
Yes. Sole traders and self-employed professionals can take out business SIM only deals. Most networks do not require a Companies House registration. You will typically need to provide proof of self-employment such as a UTR number or recent tax return.
Are 30-day business SIM only contracts available?
Yes, all four major UK networks offer 30-day rolling business SIM only contracts. These give you the flexibility to cancel or change your plan at any time with 30 days notice. Monthly prices are slightly higher than 12 or 24-month deals, but there is no long-term commitment.
How much data do I need on a business SIM only plan?
It depends on your usage. For email and light browsing, 5-10 GB per month is sufficient. If you use video calling, cloud apps or tethering regularly, 25-50 GB is more appropriate. For heavy users or those who tether their laptop, an unlimited data plan removes any worry about overage charges.
Can I keep my existing phone number on a business SIM only deal?
Yes. You can port your existing number to a new business SIM only deal by requesting a PAC code from your current provider. The switch typically completes within one working day. This applies whether you are moving from a personal or another business contract.
Do business SIM only deals include 5G?
Most business SIM only plans from EE, Vodafone, Three and O2 now include 5G at no extra cost, provided you have a 5G-capable handset and are in a 5G coverage area. EE currently has the widest 5G coverage in the UK, followed by Three and Vodafone.