Most people pay more for their mobile than they need to. The good news: cutting your phone bill is straightforward. Here are all the methods ranked by impact.
Method 1 — Switch to SIM-Only (Biggest Impact)
If your phone contract is 24 months old or older, switch to SIM-only immediately. You own the handset; you no longer need to pay for it.
Typical saving: £15–£35/month (£180–£420/year)
Request a PAC code (text “PAC” to 65075), compare SIM-only deals for your data usage level, and switch. The whole process takes under 30 minutes. See SIM-Only vs Contract Phone for the full guide.
Method 2 — Reduce Your Data Allowance
Many people have more data than they use. Check your actual usage (Settings → Mobile Data on iPhone; Settings → Network on Android). If you consistently use 5GB but pay for 30GB, move to a 10GB plan.
Typical saving: £3–£10/month
Method 3 — Use Wi-Fi More Intentionally
Your home broadband data is unlimited — your mobile data is not. Habits that reduce mobile data consumption:
- Auto-connect to trusted Wi-Fi networks (home, work)
- Download podcasts, Spotify playlists, and offline maps on Wi-Fi before leaving home
- Set Netflix, YouTube, and iPlayer to use Wi-Fi only or reduce quality on mobile data
- Turn off auto-play videos in social media apps
Method 4 — Call the Retentions Team
If you’re mid-contract or recently renewed, call your provider’s retentions or cancellations team. Say you’ve seen a better deal and are considering switching. They may offer:
- A discount for the remaining contract period
- A free data increase
- An upgrade at the same price
This works less reliably for phones than for broadband, but it costs nothing to ask.
Method 5 — Buy Your Phone Separately
Rather than a bundled phone contract, consider:
- Buying a refurbished phone outright (often 30–50% cheaper than new)
- Using a 0% interest payment scheme on a new phone
- Combining with a SIM-only deal
The total cost of (refurbished phone + SIM-only for 24 months) is almost always lower than a 24-month bundled phone contract for the equivalent device.
Method 6 — Check Whether You Qualify for a Discounted Plan
Some providers offer discounted mobile plans for people on Universal Credit, Pension Credit, or other benefits. These are less widely publicised than social tariff broadband, but worth asking about. Contact your network directly and ask whether they have a low-income or social tariff mobile plan.
Method 7 — Remove Add-Ons You Don’t Use
Check your phone account for add-ons: insurance, bolt-ons for extra data, calls packages, content subscriptions. Cancel any you haven’t used in the last month.
Quick Saving Summary
| Action | Monthly saving | Annual saving |
|---|---|---|
| Switch to SIM-only (contract expired) | £15–£35 | £180–£420 |
| Reduce data allowance to actual usage | £3–£10 | £36–£120 |
| Cancel unused add-ons | £3–£15 | £36–£180 |
| Buy refurbished + SIM-only vs new contract | £10–£25 | £120–£300 |
Method 8 — Review Your Mobile Phone Insurance
Mobile phone insurance through your network typically costs £7–£15/month — £84–£180/year. Before renewing, consider:
- Home contents insurance often covers mobile phones away from home. Check your policy excess versus the mobile insurance excess — they may be similar.
- Standalone specialist insurance from providers like Loveit Coverit or Tesco Mobile Insurance is typically 30–50% cheaper than network insurance for the same cover level.
- New mid-range phones (£200–£400) may not need insurance at all if you have a solid case and home contents cover.
Cancel network insurance if you are already covered by your home contents policy.
Method 9 — Avoid Unexpected Roaming Charges
If you travel outside the UK, roaming charges can add significantly to your bill. Before you go:
- Check your plan’s roaming policy (many UK plans now charge for EU data use)
- Consider a travel eSIM or data pack for the destination country
- Use Wi-Fi calling wherever possible to avoid international call rates
See Mobile Roaming Charges UK 2026 for the full breakdown by network.
See Best SIM-Only Deals UK 2026 for how to compare and find your best deal.