UK business broadband ranges from about £30/month for basic FTTC through to £1,200+ for a high-bandwidth leased line. Most SMEs land somewhere in the £45–£90/month bracket for full fibre. Here's the breakdown, plus the fees the sales team won't volunteer.
Pricing by tier
Standard business fibre (FTTC, 40–80 Mbps down / 10–20 up): £30–£45/month on a 24-month term. Fine for small offices doing normal cloud work with a couple of VoIP lines.
Full fibre (FTTP, 100–900 Mbps symmetric or near-symmetric): £45–£90/month depending on speed and provider. The sensible default for most UK SMEs from 2026 onwards.
Leased line (dedicated, symmetric, SLA-backed): £200–£1,200/month. Cost scales with bandwidth (100 Mbps to 10 Gbps) and location — a leased line in central London is cheaper than one to a rural business park because Openreach fibre is closer.
The fees to watch for
Installation. Advertised as £150–£300 but almost always waived if you ask, especially on 36-month terms. If they refuse, walk — someone else will waive it.
Mid-contract price rises. Most UK ISPs raise prices annually by CPI + 3.9%. On a 36-month contract that compounds to ~13% by year three. Some providers now offer fixed-price contracts — worth £5–£10/month extra.
Router charges. Some providers charge £5–£10/month for the router. Check whether it's included, one-off, or ongoing.
Early termination fees. Cancelling a 36-month contract at month 12 typically costs 24 months of remaining line rental. Match your contract length to your certainty about the office.
How to negotiate a better deal
Get three quotes minimum — providers price aggressively when they see a comparison.
Ask for installation waived, first three months free, or a router included. One of the three usually lands.
Push for a fixed-price contract or a capped price rise. Providers will agree to protect a sale.
Book renewal negotiations 60 days before your current contract ends — the retention team has more room than the new-sales team.
Frequently asked questions
How much does business broadband cost per month in the UK?
Standard fibre from £30/month, full fibre £45–£90/month, leased lines £200–£1,200/month depending on bandwidth and location.
Is business broadband more expensive than home broadband?
Yes — typically £15–£30/month more on the same underlying fibre. You're paying for the SLA, static IP and priority support, not faster speeds.
Do UK business broadband contracts have price rises?
Most do — usually CPI + 3.9% annually. Fixed-price and price-locked contracts are becoming more common; expect to pay £5–£10/month more for the certainty.
Can I cancel my business broadband contract early?
Yes, but early termination fees are steep — typically the remaining monthly line rental for the full contract term. Match your contract length to how confident you are about staying.
How much does a leased line cost in the UK?
£200–£1,200/month for the line itself, plus install (often £0–£2,000, sometimes subsidised on longer terms). Cost depends on bandwidth and how far your premises are from the nearest Openreach fibre.