Published: 3 March 2026 • Compare The Networks
Every month, we round up the best business mobile deals from across all UK networks. Here are our top picks for March 2026 — the deals we are recommending to customers right now.
Best SIM Only Deals
| Pick | Network | Data | Price | Why |
|---|---|---|---|---|
| Best Budget | Three | 1GB | £6/mo | Cheapest business SIM |
| Best Mid-Range | EE | 25GB | £14/mo | Best coverage + generous data |
| Best Unlimited | Three | Unlimited | £10/mo Editor’s Pick | Unbeatable price |
| Best Premium | EE | Unlimited | £19/mo | Fastest 5G + widest coverage |
Best Handset Deals
| Phone | Network | Data | Price |
|---|---|---|---|
| iPhone 16 + 25GB | Three | 25GB | £32/mo |
| Samsung S25 + Unlimited | Three | Unlimited | £36/mo Editor’s Pick |
| Samsung A55 + 25GB | Vodafone | 25GB | £18/mo |
Best Multi-Line Deals
| Lines | Network | Per Line | Total |
|---|---|---|---|
| 5 | Three | £9/mo | £45/mo |
| 10 | Three | £8.50/mo | £85/mo Best Value |
| 20 | Vodafone | £12.80/mo | £256/mo |
| 50+ | Bespoke | From £7/mo | Get Quote |
March Tips
- Three unlimited at £10/month is the standout deal — again
- Samsung A55 at £18/month is the best value handset
- Consider refurbished phones + SIM only for the absolute lowest total cost
- Annual CPI + 3.9% price increases apply in April — lock in now for 11 months at today’s price
Get March’s Best Deal
These deals are available through Compare The Networks right now.
Get This Month’s Best DealAll prices exclude VAT. CPI + 3.9% annual increases apply. Last updated: March 2026.
Q: Are these deals available to sole traders?
Yes. Sole traders, limited companies, partnerships, and charities can all access business mobile deals. No Companies House registration required.
Q: How do I switch to one of these deals?
Text PAC to 65075 to get your PAC code, then contact us. Your number transfers within 1 working day.